Jobs Fullstack

We are helping our partners at Risklick, a Swiss tech company working in the pharmaceutical and clinical research field, to find a Full-Stack Developer for their product team.

Their main product, Protocol AI, is an AI-powered platform for working with clinical trial protocols and related documentation.
 

Responsibilities:

• Developing new features and improving existing functionality.
• Working on both backend and frontend parts of the product.
• Designing and implementing new modules and integrations.
• Working with databases and optimizing existing application logic.
• Participating in technical and architectural discussions.
• Working with documents and structured data.
• Collaborating with the product and engineering team in English.
   

Requirements:

• 5+ years of commercial development experience.
• Strong experience with TypeScript and Node.js.
• Hands-on experience with Next.js and React.
• Experience with Prisma and PostgreSQL.
• Strong backend background and understanding of application architecture.
• Experience with full-stack product development.
• Good English for daily communication and technical discussions.
• Ability to work independently and take ownership of your tasks.

A candidate who started as a Backend Developer and later moved into full-stack development would be a particularly good fit.
 

Nice to have:

• Experience in Pharma, MedTech, HealthTech, or clinical research.
• Experience with document-heavy products or document processing.
• Experience with AI development tools.
   

What we offer:

• Fully remote, full-time cooperation.
• Working hours: 10:00–18:30 Kyiv time.
• No time trackers.
• Jira and Slack for day-to-day work.
• Claude Code as part of the development workflow.
• English-speaking work environment.
• Compensation discussed in gross.

Meet the YozmaTech

YozmaTech isn’t just another tech company – we’re a global team of go-getters, innovators, and A-players helping startups and product companies scale smarter and faster.
We build dedicated development teams across 10+ countries, creating strong, long-term partnerships based on trust, transparency, and real impact.
Here, every idea counts. We value people who are proactive, open-minded, and ready to grow. If you’re passionate about building meaningful products and want to join a team that feels like family – you’ll feel right at home with us.

Our client is looking for an AI Builder / Full-Stack Engineer to join an early-stage startup with a very small team and a high level of ownership.

The company is building an AI-native product for the janitorial industry that automates the processing of large volumes of complex documentation, including contracts and RFPs. The product analyzes this information and generates accurate, detailed bids, including pricing, equipment selection, and task breakdowns down to the room and space level.

This role is ideal for an engineer who can take an AI capability end-to-end — from designing agents and backend systems to building the product experiences through which users interact with them. You’ll work across AI/LLM engineering, backend systems, data pipelines, and full-stack product development.

Key Requirements:
🔹 Strong commercial experience with AI/LLM engineering and backend development;
🔹 Strong Python engineering skills;
🔹 Hands-on experience building AI agents, LLM workflows, or AI-native systems;
🔹 Experience designing backend services, APIs, data pipelines, and working with databases;
🔹 Ability to work with unstructured data and build systems for processing and analyzing complex information;
🔹 Experience integrating and working with LLM APIs and AI models;
🔹 Comfortable building full-stack product features and modern web UIs;
🔹 Experience with React, Next.js, and/or Node.js;
🔹 Strong understanding of system design, data modeling, debugging, and infrastructure;
🔹 Experience testing AI systems and evaluating the quality of model outputs;
🔹 Ability to take an AI capability from agent/backend logic through to a usable customer experience;
🔹 High level of ownership and ability to independently drive technical work from architecture to production;
🔹 Comfortable working through ambiguous product and technical requirements in a fast-paced startup environment;
🔹 Pragmatic approach to engineering — knowing when to build deeply and when to ship quickly;
🔹 English – Upper-Intermediate or higher.

Will be plus:
🔹 Experience working specifically with contracts, RFPs, or other complex business documentation;
🔹 Experience building UIs for managing or interacting with AI agents;
🔹 Experience with both commercial and open-source AI models;
🔹 Previous experience in the janitorial / cleaning services industry or similar domain;

What you will do:
🔹 Design and deploy agentic AI workflows, agent harnesses, and orchestration systems;
🔹 Develop and maintain the backend for AI agents that process and analyze contracts, RFPs, and other complex documents;
🔹 Build pipelines for large volumes of unstructured data, including OCR and vision-based document and image analysis;
🔹 Integrate AI tools and models, including OpenAI, Google, and open-source models, using Python;
🔹 Build AI agent orchestration using LangChain, Deep Agents, and similar frameworks;
🔹 Build backend services, APIs, data pipelines, and core infrastructure;
🔹 Own data flows across ingestion, transformation, storage, retrieval, evaluation, and application usage;
🔹 Design and maintain databases, including Postgres and MongoDB;
🔹 Build full-stack product experiences around AI capabilities, including agent interfaces, review/approval flows, and AI-assisted workflows;
🔹 Collaborate with frontend development using React, Next.js, and Node.js to integrate AI agents into the product;
🔹 Turn structured and unstructured AI outputs into polished user-facing experiences, documents, and product workflows;
🔹 Build datasets and testing approaches for AI systems and implement evaluation metrics, including LLM-as-a-judge and statistical evaluation;
🔹 Debug model behavior, pipeline failures, data quality issues, frontend/backend integration, and system performance;
🔹 Own complex technical problems end-to-end, from architecture and implementation through production;
🔹 Build reliable, scalable, and secure systems for an AI-native product;

Interview stages:
🔹 HR Interview;
🔹 Technical Interview — 30 min;
🔹 Non-technical / Culture Fit Interview — 60 min;
🔹 Deep Technical Interview — 1 hour;
🔹 Reference Check;
🔹 Offer;

Why Join Us?

At YozmaTech, we’re self-starters who grow together. Every day, we tackle real challenges for real products – and have fun doing it. We work globally, think entrepreneurially, and support each other like family. We invest in your growth and care about your voice. With us, you’ll always know what you’re working on and why it matters.
From day one, you’ll get:
🔹 Direct access to clients and meaningful products;
🔹 Flexibility to work remotely or from our offices;
🔹 A-team colleagues and a zero-bureaucracy culture;
🔹 Opportunities to grow, lead, and make your mark.

After you apply

We’ll keep it respectful, clear, and personal from start to offer.
You’ll always know what project you’re joining – and how you can grow with us.

Everyone’s welcome

Diversity makes us better. We create a space where you can thrive as you are.

Ready to build something meaningful?

Let’s talk. Your next big adventure might just start here.

Mirko Solutions is an international IT company specializing in web and mobile development for clients across the US, Canada, EU, and Australia. We are looking for an AI-Native Full-Stack Engineer who leverages AI as a core part of the software development lifecycle rather than just a coding assistant. In this role, you will build scalable web applications, rapidly prototype new ideas, integrate AI capabilities into products, and contribute to delivering innovative AI-first solutions.

Job Requirements:

• 4+ years of commercial experience as a Full-Stack Software Engineer
• Strong knowledge of React (Next.js is a plus)
• Strong experience with Node.js (NestJS and/or Express)
• Proficiency in TypeScript
• Experience working with PostgreSQL or other SQL databases
• Solid understanding of REST API design and integration
• Experience deploying applications using Vercel, Railway, Supabase, Render, AWS, or GCP
• Strong problem-solving skills and ability to work independently
• Excellent communication skills in English
• Daily use of AI development tools such as Claude Code, Cursor, Windsurf, GitHub Copilot, or similar
• Experience using AI for:
  • Code generation
  • Debugging and troubleshooting
  • Refactoring existing code
  • Rapid MVP development
  • Test generation
  • Documentation creation
• Strong understanding of AI-first development workflows
• Ability to effectively validate and review AI-generated code 
• LLM & AI Integration Experience

Nice-to-Have:

• Experience with LangGraph
• Experience with Model Context Protocol (MCP)
• Experience using n8n
• Experience with Supabase
• Experience with Vercel AI SDK
• Experience working with Vector Databases
• Docker
• AWS

Responsibilities:

• Design, develop, and maintain modern full-stack web applications
• Build new product features using React, Node.js, and TypeScript
• Rapidly prototype and deliver MVPs using AI-assisted development workflows
• Integrate LLMs and AI services into production applications
• Build AI-powered features such as intelligent search, recommendations, document processing, and conversational experiences
• Develop and maintain REST APIs and backend services
• Work with SQL databases and optimize application performance
• Review, validate, and improve AI-generated code to ensure production quality
• Collaborate closely with Product Managers, Designers, and other Engineers
• Continuously improve development processes through AI-native engineering practices

We provide the following for our employees:

• Competitive salary according to qualification
• Comfortable working environment
• Experienced colleagues
• Opportunity to work with innovative AI-driven projects
• Regular performance reviews
• Friendly atmosphere and support for professional growth

We are looking for a trainee in Software Development who wants to grow into a Full Stack Developer. You should be a self-motivated person, eager to learn and apply modern technologies (including AI) to build real solutions for the company. You will work on internal tools, automations, and custom software across front-end and back-end: user interfaces, APIs, databases, integrations, and deployments.

You won’t know everything on day one, but you will learn quickly. Expect to contribute to real company projects within your first months. You will work closely with experienced developers and receive mentorship. Over time you should take ownership of small tasks and grow into an independent engineer. This is a long-term opportunity and a potential career path, not just an internship.

What to expect from your work

Tech stack you will work with for sure:

• JavaScript/TypeScript
• React
• Node.js
• REST APIs
• PostgreSQL / MongoDB
• Git & GitHub

AI-related stack

• OpenAI API (automation, text generation, integrations)
• Cursor / AI-assisted development tools

Domains & areas

Business-related

• Internal tools & dashboards
• Business process automation
• Operations & CRM systems

Tech-related

• Front-end development (React UI)
• Back-end development (Node.js APIs)
• Database design & queries
• API integrations
• Basic DevOps & deployment

Things you may work with later

• Next.js
• Docker
• AWS / DigitalOcean
• CI/CD (GitHub Actions)
• Microservices architecture

• Infrastructure as Code

   

Requirements for the candidate

Must have:

• Basic knowledge of JavaScript
• Understanding of how web applications work (frontend + backend basics)
• Strong motivation to learn and grow

• Full Stack Development

   

Will be a plus:

• Experience with React or Node.js (even pet projects)
• Understanding of REST APIs
• Experience with databases
• Familiarity with Git

No required:

• Commercial experience
• Perfect English
• Knowledge of the full tech stack

We care more about your learning ability, mindset, and motivation.

We encourage candidates to apply even if they do not match 100% of the list.

About the company

We provide:

• Custom Software Development Services
• UX/UI Design Services
• Recruitment Services
• Outstaffing Services

We believe in people, because that is the core of any company: clients and employees.

We value people who are smart, proactive, and genuinely enjoy what they do.

ABOUT THE COMPANY

Our client is a well-funded AI product company building a “second brain” for senior HR leaders and their teams. Its platform combines AI, people analytics, and a professional network used by thousands of C-level executives.

We're looking for a Fullstack Product Engineer who wants to:

• Own features end-to-end, from deeply understanding the customer problem to shipping the feature and driving its usage & adoption.
• Work across the entire stack (React, TypeScript, NestJS, PostgreSQL).
• Ship fast & high quality;you believe speed vs. quality is a false choice, and in fact you can increase both in lockstep.
• Work directly with customers: from hopping on calls, to debugging their problems, and then iterating based on real feedback
• Craft positive-sum engineering practices that increase velocity.
• Become one of the first 3 engineers in the AI & Analytics pod

This is only an in-person role (4-5 days/week) in NYC. The company has a beautiful office in a 1,000+ ft skyscraper in the heart of Hudson Yards, New York.

TECH STACK

• Frontend: React, TypeScript, Vite
• Backend: NestJS, TypeScript
• Data: PostgreSQL, Redis
• Infrastructure: AWS, GitHub Actions
• Observability: Sentry, New Relic
• AI Dev Tools: Cursor, Claude Code (or similar)

Nice to have: SQL proficiency and experience working with data warehouses (the team use Snowflake for analytics).

CANDIDATE CRITERIA

• You have 2-6 years building and shipping product.You've worked on real products with real users. You've felt the pain of production issues and learned from them.
• You're strong across the stack.You can build a React component, write a backend service, and debug a database query. You might be stronger in one area, but you're not helpless in any of them.
• You genuinely enjoy customer interaction. You've been on customer calls before and found them valuable, not painful. You understand that great products come from deeply understanding user problems.
• Strong SQL knowledge is a plus.We build querying engines on top of Snowflake data—if you're comfortable writing and optimizing complex queries, that's a big advantage.
• You're AI-native and AI-augmented.Cursor, Claude Code, AI-assisted reviews—these have fundamentally changed how you work. You're constantly experimenting with new AI tools and have opinions on what's worth adopting. If you're still coding the way you did in 2022, this isn't the right fit.
• You have an owner's mindset. Self-driven, resourceful, ready to build and be in the trenches. You don't need to be managed; you need to be pointed at problems.
• You've worked in high-intensity environments.Startups, high-growth teams, or any context where speed and quality both mattered.
• You're a positive influence on every team you've been on. Low ego, high standards

WHAT YOU'LL DO

• Ship features end-to-end from problem understanding to production, across frontend and backend
• Talk to customers regularly: join calls, gather feedback, and translate their problems into solutions
• Write code that lasts with tests, edge case handling, and clear documentation
• Review code thoughtfully and hold the bar on quality for the team
• Debug production issues and make sure they don't happen again
• Help cultivate engineering culture as one of the founding engineers of this pod

COMPANY OFFER

• Full-time position with a well-funded, fast-growing AI product company
• High-impact role as one of the first three engineers in a newly formed AI product pod
• End-to-end ownership of customer-facing features, from discovery to production and adoption
• Direct collaboration with customers and C-level executives
• Opportunity to shape the product, engineering practices, and team culture from an early stage
• Modern stack
• AI-native engineering environment
• Fast-moving team with high standards, minimal bureaucracy, and strong individual ownership
• In-person work from the company’s office in Hudson Yards, New York City, 4-5 days per week

What We Offer

• 100% remote work opportunity and flexitime - choose working hours between 8:00-20:00 Kyiv time.
• Personal Growth Budget in USD (Travel, Health & Psychotherapy, Sports, Education & Training, Software, Work Equipment).
• Competitive compensation in USD with regular salary reviews.
• Paid vacation, holidays, and sick leave.
• Continuous professional growth through mentorship, feedback, and knowledge sharing.
• English Speaking Club with a native speaker.
• Access to AI tools, including coding assistants for engineers and LLM subscriptions for non-technical specialists.
• Projects with clients across Europe and North America across FinTech, Logistics, Hospitality, E-commerce, Legal, Music, and other industries.
• Transparent processes, flat management structure, and a supportive team culture.

About the Role

• We are hiring a Senior Full-Stack Engineer to become one of the strongest technical contributors on the team.
• The single most important thing we’re looking for is experience scaling a SaaS product. We want someone who has already seen what happens as a live platform grows: increasing complexity, technical debt, scaling bottlenecks, evolving data models, unreliable integrations, and engineering decisions that worked at one stage but became expensive at the next.

• This is a hands-on senior engineering role with strong technical leadership expectations. You will design and write production code, own substantial systems end to end, influence architectural decisions, challenge technical direction when needed, and raise the engineering level of the people around you.

   

Project

• FinTech SaaS platform built for the restaurant and hospitality industry. Our products handle tip pooling and payouts, payroll, reporting and compliance, labor and operational data, and integrations with the systems hospitality businesses already use. The platform is live, serves thousands of customers and moves millions of dollars.

   

Required Hard Skills

• Several years operating at Senior Engineer level on a SaaS product that grew significantly while you were there. You have seen a system become meaningfully bigger and understand the problems that tend to arrive next.
• Strong Python and Django / Django REST Framework experience, or deep experience in a closely comparable backend stack.
• Strong React and TypeScript experience, with the ability to work effectively across backend and frontend when required.
• Strong PostgreSQL and data modeling skills. You should be comfortable designing schemas that can evolve as the business grows into new products and safely changing them once they contain production data.
• Production experience with asynchronous and distributed workloads using Celery or comparable technologies.
• Strong understanding of API design and third-party integrations, including failure handling, retries, idempotency, data consistency, reconciliation, and situations where the system on the other side is unreliable or outside your control.
• Strong understanding of software architecture and the ability to make pragmatic architectural decisions inside a large existing codebase rather than only designing systems from scratch.
• Experience identifying and addressing performance, scalability, reliability, and maintainability problems before they become critical.
• Strong testing practices and experience safely evolving systems that must remain operational while they are being changed.
• Production experience with Docker, CI/CD, monitoring, error tracking, and observability. 
• Strong Linux knowledge. 
• Sound judgment about technical debt: knowing the difference between an acceptable shortcut and one that will create significant problems later, and being able to improve a system while it remains in production.
• Everyday experience with using AI agents for work (Claude Code or Codex). Familiar with configuring AI toolset, understanding pros and cons of modern AI.

Current Stack

• Django / DRF, PostgreSQL, Redis, Celery, Docker, Traefik, Datadog, Sentry, Mailgun, GitHub Workflows.
• Next.js, MUI, TanStack Query, React Hook Form, Zod, Vitest.

Nice to Have

• FinTech or financial systems experience, particularly payments, payouts, ledgers, reconciliation, payroll, banking, audit trails, or other systems where financial correctness matters.
• Experience with restaurant or hospitality technology, including POS, scheduling, workforce management, payroll, or similar systems.
• Experience with high-volume or business-critical third-party integrations.
• Experience improving a system with meaningful legacy code or technical debt while the product remained actively developed.
• Experience with multi-tenant SaaS architectures.
• Experience improving engineering practices across a team rather than only within your own work.
• Experience as a Senior Engineer in a company of roughly 20–200 people, where your role included helping decide what technical work actually mattered.

Required Soft Skills

• Ability to take technical ownership beyond your own tickets and think about the health of the product and engineering system as a whole.
• Strong engineering judgment and the confidence to challenge technical decisions constructively, including decisions made by Staff Engineers and engineering leadership.
• Comfort with ambiguity. Problems will not always arrive fully specified, and part of your job is asking the questions that make them clear before code gets written.
• Ability to explain complex technical trade-offs clearly to engineers, Product, and non-technical stakeholders.
• A strong teaching mindset. You explain your reasoning, document important decisions, review code seriously, and make the engineers around you better rather than becoming the only person who understands a difficult system.
• Comfortable taking leadership during difficult technical situations without waiting for someone else to define every step of the solution.
• Strong written communication and self-direction. The team is distributed across Canada and Europe with limited live overlap, so you need to communicate clearly asynchronously and drive your own work.
• Fluent English, written and spoken.

Key Responsibilities

1. Own substantial systems end to end

• Take meaningful problems that have been identified but not fully solved and work with Staff Engineers and Product to determine the right technical approach.
• Own complex initiatives from problem definition through design, implementation, migration, testing, rollout, and production monitoring.
• Design not only for the expected path, but also for what happens when something goes wrong in production.

• Remain responsible for the systems you build once they are carrying real customer data and real money.

   

2. Help strengthen the architecture of a growing product

• Work closely with Staff Engineers and the VP of Engineering on architectural decisions and technical direction.
• Understand the existing architecture and identify where today’s decisions may create tomorrow’s problems.
• Identify areas where the platform may struggle as product complexity, integrations, customers, data volume, and transaction volume increase.
• Challenge architectural decisions constructively when you see a better approach.

• Help evolve the architecture incrementally through small, safe improvements rather than unnecessary rewrites or over-engineering.

   

3. Protect correctness, reliability, and engineering quality

• Treat financial correctness as a first-class engineering concern.
• Design for reconciliation and auditability: how we prove a number is correct, understand how it was produced, and detect discrepancies before customers do.
• Use Datadog, Sentry, logs, production data, and other signals to identify recurring problems and their root causes.
• Improve observability, error handling, testing, deployment safety, performance, and operational reliability.

• Make sure recurring production problems are solved systematically rather than repeatedly patched.

   

4. Own technically difficult areas of the product

• Lead work involving complex third-party integrations, asynchronous workflows, data synchronization, reconciliation, migrations, and failure recovery.
• Design systems that behave predictably when external APIs fail, requests are duplicated, jobs execute late, or data arrives in an unexpected state.
• Work closely with Product to make technical feasibility and engineering constraints visible before implementation begins.

• Help break large technical initiatives into safe, incremental pieces that can be built, migrated, and released without unnecessarily putting the existing platform at risk.

   

5. Make the case for important technical work

• Identify technical debt, platform investment, reliability work, and architectural improvements that may not naturally appear on the product roadmap.
• Distinguish between debt that can safely remain and debt that is materially affecting reliability, engineering speed, or future product development.
• Make the business and technical case for that work using evidence rather than engineering preference alone.

• Help sequence improvements so they support product development rather than competing with it unnecessarily.

   

6. Raise the level of the engineering team

• Be a strong technical reference point for other engineers.
• Review architecture, designs, and pull requests with a focus on correctness, reasoning, and long-term maintainability.
• Explain why you would make a decision differently rather than simply leaving a verdict.
• Mentor engineers through reviews, pairing, technical discussions, and example.
• Document important knowledge and decisions so understanding stays with the team rather than with one individual.

• Take leadership when a difficult technical problem crosses multiple areas or engineers.

   

7. Remain hands-on

• Design and write production code across the backend and frontend.
• Take direct ownership of technically difficult or risky work when appropriate.
• Debug difficult production issues and establish their root causes.
• Read and understand the existing codebase before changing it.

• Build enough direct knowledge of the platform to ensure your technical decisions are grounded in how the system actually works.

   

Who this position is not for

• This is not a role for someone whose definition of seniority is simply delivering more complicated tickets. 
• If you prefer receiving clearly defined tickets and technical solutions and then implementing them, this role will probably be frustrating.
• It is not a management role. You won’t have direct reports or headcount responsibility. Leadership here comes through technical ownership, judgment, mentoring, reviews, and influence.
• It is also not a Staff Engineer role. Our Staff Engineers and VP of Engineering set the overall technical direction and architecture. You will help shape that direction, challenge it when needed, and fully own the design and implementation of substantial systems within it.
• It is not a greenfield role. You will be joining a live platform with thousands of customers and a roadmap that does not pause while technical improvements are made. Much of the work involves understanding existing systems, migrating them safely, and improving them incrementally rather than replacing them.
• If you naturally ask what happens when the system gets significantly larger, how it fails, how we know the data is correct, and what today’s shortcut will cost us a year from now, you’ll recognize the work.

Things You Should Know Before Applying

• The engineering challenge is no longer simply building features quickly. It is continuing to ship while improving reliability, scalability, architecture, and the technical foundation required for significant year-over-year growth
• There is technical debt. Part of your job is determining which debt actually matters, making its impact visible, and helping address it without stopping product development.
• Requirements will sometimes be incomplete. We expect you to help shape the solution rather than wait for perfect specifications.

• You will be expected to disagree when necessary, propose better approaches, and explain the reasoning behind them.

   

RedCore is an international business group that creates technological solutions for digital markets. Our products and services cover fintech, marketing, e-commerce, customer service, communications, and regulatory technologies.

We are looking for a Team Lead Fullstack to join our team!  

Requirements: 
- Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field;
- 5+ years of experience in software engineering, including production fullstack delivery;
- 1+ year of experience leading the team; 
- Ability to lead delivery: planning, unblocking, technical quality, and communication with stakeholders.
- Strong proficiency in Python and TypeScript;
- Experience with back-end frameworks (FastAPI);
- Solid experience with Angular (standalone components, signals, OnPush strategy);
- Expertise in object-oriented programming and SOLID principles;
- Solid understanding of computer science fundamentals, data structures, and algorithms;
- Strong knowledge of concurrency, parallelism, and related concepts;
- Experience with RESTful APIs and microservices architecture;
- Proficiency in version control systems, particularly Git;
- Familiarity with CI/CD pipelines and DevOps practices;
- Strong understanding of SQL database systems;
- Knowledge of containerization technologies (Docker, Kubernetes);
- Testing and quality mindset; understanding Test Pyramid methodology and different Test Categories (pytest, Jasmine/Karma or similar);
- Understanding of Observability (structured logging, metrics, traces, OpenTelemetry) and Reliability (retries, backoff, idempotency);
- Experience with authentication and authorization (OIDC/JWT; Keycloak or similar identity providers); 

Will be a plus: 
- Experience with message brokers (e.g., NATS JetStream, Kafka, RabbitMQ);
- Experience with ClickHouse or other analytical/OLAP databases;
- Experience with Playwright or similar browser automation. 

Responsibilities: 
- Take ownership of team projects, including delivery coordination, technical quality, risks, dependencies, and day-to-day execution;
- Plan and coordinate team work considering priorities, developer availability, vacations, sick leaves, and backup ownership;
- Ensure delivered solutions follow agreed architecture and clarify unclear technical decisions with Architect/stakeholders;
- Be responsible for quality, consistency, maintainability, and production readiness of solutions delivered in code;
- Lead code reviews and improve engineering practices across testing, observability, documentation, reliability, and security;
- Develop and maintain robust, scalable web applications;
- Design and implement efficient high-load APIs;
- Ensure high performance and responsiveness of applications;
Implement security measures and data protection in line with industry standards;
- Troubleshoot, debug, and upgrade existing software;
- Support and mentor developers through technical guidance, 1:1 meetings, knowledge sharing, and development planning;
- Identify knowledge gaps, reduce single points of failure, and organize knowledge sharing across team projects;
- Promote practical AI-assisted engineering in the team, including development, testing, documentation, debugging, and review workflows;
- Ensure AI-assisted work improves delivery speed without reducing code quality, security, or maintainability;
- Write technical documentation and maintain system architecture diagrams;
- Stay updated with emerging technologies and industry trends.

Our benefits to you:

☘️An exciting and challenging job in a fast-growing business group, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance, and more

🤝🏻Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed

🧑🏻‍💻Modern corporate equipment based on macOS or Windows and additional equipment are provided

🏖Paid vacations, sick leave, personal events days, days off

💵Referral program — enjoy cooperation with your colleagues and get the bonus

📚Educational programs: regular internal training sessions, compensation for external education, attendance of specialized global conferences

🎯Rewards program for mentoring and coaching colleagues

✈️In-house Travel Service

🦄Multiple internal activities: online platform for employees with quests, gamification, presents and news, clubs for movie / book / pets lovers and more

🎳Other benefits could be added based on your location. 
 

About the Product

We build a marketing data platform for the pharma industry. Our clients are pharmaceutical brands, and the campaigns reach verified healthcare professionals.

The platform enables marketing teams to run campaigns across channels such as Meta, LinkedIn, and programmatic advertising, and to measure campaign performance. The core product is a Laravel + Vue application running on GCP, backed by PostgreSQL and analytical data platforms including ClickHouse and BigQuery.

The team is small, fully remote across EU time zones, and releases continuously.

We are looking for a Lead Platform Engineer to lead the engineering team behind a large-scale web platform used by pharma marketing teams to run and measure their campaigns.

This is a hands-on technical leadership role. You will lead a small team of developers and a QA engineer while continuing to write code yourself. You will shape how features are built, translate product requirements into clear technical specifications, make architectural decisions, and take ownership from development through release and production.

You will work closely with the Product Lead, who owns the product vision and priorities, and report directly to the CTO. Together, you will shape not only the technology behind the platform, but also its user experience and evolution.

What we're looking for

General

• Product mindset: able to turn business goals into concrete user flows and product decisions, while challenging requirements that do not create real user value
• 2+ years of technical leadership: experience as a Tech Lead, Team Lead, or hands-on Engineering Manager, including task breakdown, code reviews, mentoring, and 1:1s
• 5+ years of full-stack engineering experience: building, shipping, and maintaining production web products
• Production ownership: comfortable owning releases, incidents, reliability, and data correctness
• Remote collaboration: comfortable working in a fully remote environment with overlap across EU time zones
• English B2+: confident in written communication, as most day-to-day communication is asynchronous

Technical

• UI/UX mindset: able to review existing user flows, identify friction, and implement meaningful improvements without depending on a designer for every change
• Strong Laravel: hands-on experience with Eloquent, queues, events, service providers, testing, and production Laravel applications
• Vue.js: experience with either Vue 2 or Vue 3. The existing SPA is based on Vue 2.7, Options API, Vuex, and Vue Router, so the ability to work effectively within an existing codebase is more important than framework preference
• PostgreSQL: beyond CRUD — indexing, query optimization, execution plans, and migrations against live production tables
• Strong SQL + analytical databases: practical experience with ClickHouse, BigQuery, Snowflake, or similar technologies
• Large-scale data: comfortable working with datasets containing hundreds of millions or billions of rows and understanding the performance implications
• Technical documentation: able to write and maintain FRDs, architecture decisions, API contracts, and data models
• GCP: experience designing and operating services using Cloud Run, Cloud SQL, GCS, or similar
• Docker & CI/CD: hands-on experience with Docker and CI pipelines, preferably GitHub Actions
• Automated testing: experience with unit, integration, and E2E testing and a mindset of improving test coverage over time
• Production debugging & observability: comfortable working with Sentry, application logs, infrastructure logs, monitoring, and incident investigation

Soft Skills

• Thinks in user flows, not just tickets — understands who the user is, what they are trying to achieve, and what should happen next
• Leads by doing: breaks down work, reviews code, mentors engineers, removes blockers, and makes difficult technical calls when necessary
• Strong written communication: can clearly document requirements, architecture decisions, and technical reasoning in English
• Analytical mindset: investigates root causes rather than treating symptoms
• Strong task and risk management: keeps work transparent, identifies dependencies, and raises risks early
• Responsible approach to healthcare data: understands the importance of access control, consent, privacy, and PII

AI & Engineering Automation

AI-assisted development is an integral part of the engineering workflow. We are looking for someone who actively uses AI coding agents rather than treating them as occasional productivity tools.

We expect you to:

• Use AI coding agents such as Claude Code, Cursor, Codex, or similar tools on a daily basis
• Be comfortable having AI draft a significant portion of production code while personally reviewing and validating the output
• Run multiple AI agents in parallel using isolated branches or worktrees
• Maintain project-specific AI context using tools such as CLAUDE.md, AGENTS.md, custom commands, and rules
• Build AI-powered automations for recurring engineering tasks such as reporting, migrations, release checks, or test generation
• Understand when AI-generated output is incorrect, incomplete, or unsafe — and know when to reject it
• Take full ownership of anything that reaches production, regardless of whether it was written by you or an AI agent

Nice to Have

• Experience with design systems or component libraries
• Experience with Figma or similar tools for designing and communicating user flows
• Experience defining product requirements directly with a Product Manager, founder, or business stakeholder
• Background in AdTech, MarTech, or marketing analytics
• Experience with healthcare or pharma products, particularly consent and PII handling
• Infrastructure as Code experience with Pulumi or Terraform
• Experience migrating Vue 2 to Vue 3
• TypeScript experience
• Apache Druid
• BigQuery or ClickHouse performance and cost optimization

Responsibilities

• Own the platform experience: make day-to-day UX and user-flow decisions and proactively identify improvements
• Partner with Product: contribute to what gets built, challenge assumptions, propose alternatives, and advocate for the user
• Lead a small engineering team: 2–4 developers plus QA, including task planning, code review, mentoring, and participation in hiring
• Stay hands-on: design and implement features yourself while distributing work across the team
• Own technical design: define data models, APIs, UI flows, testing strategy, and rollout plans
• Write and maintain FRDs and keep technical documentation up to date
• Work directly with the Product Lead on weekly priorities and delivery planning
• Work with large-scale campaign data across PostgreSQL, BigQuery, ClickHouse, and Druid
• Own releases and reliability: deployments, monitoring, alerting, incident response, and production support
• Improve observability and engineering quality across the platform
• Maintain and improve CI/CD and automated testing
• Work responsibly with healthcare-professional data, including access, consent, and PII requirements
• Report directly to the CTO and help define architecture and engineering standards

Tech Stack

Backend: PHP 8.3, Laravel 12, Redis
Frontend: Vue 2.7, Vuex, Vite
Databases: PostgreSQL, ClickHouse, BigQuery, Apache Druid
Cloud & Infrastructure: GCP, Docker, GitHub Actions
Monitoring: Sentry
Testing: PHPUnit, Cypress
AI: Claude Code and other AI coding agents

What We Offer

• Real ownership of a major product area, including its technical direction and user experience
• Fully remote work with flexible hours and overlap with EU time zones
• Direct access to the CTO and the opportunity to influence architecture and engineering standards
• Paid AI tooling, including Claude Code
• The opportunity to work with large-scale data, including datasets with up to 1.5 billion rows
• Complex real-world integrations with major advertising platforms
• A small, experienced engineering team with minimal bureaucracy and fast decision-making
• A role where you can influence what gets built, how it is built, and how the product evolves

Interview Process

1. Intro Call — 30 min: expectations and mutual fit.
2. Technical Interview — 90 min: architecture, data modelling, production failure modes, and AI-assisted development.
3. Product Lead Interview — 45 min: collaboration, product thinking, and ways of working.

🚀 About Kilona.io
 

Kilona.io builds high-quality, high-speed digital products for international clients. We work in a small, fast-moving team where developers have real ownership over their work and can directly influence the final product.

We’re looking for a Middle Shopify Developer to join our team and work on e-commerce projects, building and improving Shopify stores, implementing custom functionality, and integrating third-party services.
 

✅ Requirements

- 2+ years of commercial experience with Shopify development
- Strong knowledge of Shopify Liquid
- Solid experience with JavaScript, HTML5, and CSS3
- Experience building and customizing Shopify themes
- Good understanding of Shopify Online Store 2.0
- Experience working with Shopify APIs, including Admin API and Storefront API
- Experience integrating and configuring third-party Shopify apps and services
- Understanding of responsive development and cross-browser compatibility
- Experience with Git
- Ability to debug and troubleshoot Shopify-related issues independently
- Understanding of e-commerce UX and development best practices
- English — Intermediate or higher

✨ Nice to Have
- Knowledge of GraphQL
- Experience with performance optimization and Core Web Vitals
- Experience with CRO or A/B testing for e-commerce projects

🧑‍💻 Responsibilities

- Develop, customize, and maintain Shopify stores and themes
- Build reusable sections, components, and custom functionality using Liquid, JavaScript, HTML, and CSS
- Implement new storefront features based on design and business requirements
- Customize and extend existing Shopify themes
- Integrate third-party applications, services, payment solutions, and external APIs
- Work with Shopify Admin API, Storefront API, GraphQL, and webhooks when required
- Configure and work with metafields, metaobjects, product data, collections, and Shopify settings
- Optimize storefront speed, performance, responsiveness, and Core Web Vitals
- Identify and resolve technical issues across Shopify stores
- Support existing projects, investigate bugs, and implement improvements
- Participate in code reviews and maintain clean, structured, reusable code
- Collaborate with designers, QA, project managers, and other developers
- Estimate development tasks and communicate technical limitations or possible solutions
- Stay up to date with Shopify platform updates and development best practices

 
🧑‍💻 Working Conditions

- Full-time/part-time cooperation
- Fully remote
- Flexible working hours
- Long-term cooperation
- International projects
- Small and fast-moving team
- Opportunity to work independently and influence technical decisions

 
🔍 Hiring Process

1. Video interview
2. Technical interview
3. Final interview/offer

Playtech‘s IMS Engagement Unit is looking for a self-motivated Java Fullstack Developer with strong attention to detail and excellent collaboration skills.  

Please note that this is a temporary position (Military Service Cover).

Your influential mission. You will... 

• Work with a complex codebase that includes multiple Java versions and various architectural patterns. 
• Maintain and update legacy while preserving functionality. 
• Develop new features based on business requirements. 
• Write comprehensive tests for new and old functionality. 
• Debug and fix reported issues across the system. 
• Perform root cause analysis for critical bugs. 
• Monitor and optimize system performance. 
• Conduct code reviews and maintain code quality standards. 

Components for success. You... 

• Approximately 3 years of experience as a Fullstack Developer or several years of experience in Java development. 
• Have a strong background in Java development and front-end development using React with TypeScript. 
• Possess strong expertise in application performance optimization and database query optimization. 
• Are proficient in modern software design patterns and best practices to create scalable, maintainable, and high-performing applications. 
• Have experience with performance monitoring tools and profiling techniques. 
• Have experience in maintaining and modernizing legacy systems. 
• Are knowledgeable in Hibernate, JDBC, MariaDB, Kafka, Docker, Maven. 
• Understand GIT flow (pull requests, branches, etc.). 
• Are skilled with front-end tools and technologies: TypeScript, React, Redux, ES2020, HTML5, SCSS. 
• Have experience with MaterialUI, Webpack, Jest. 
• Excel in collaboration and teamwork, are self-motivated, and pay attention to detail. 

Thrive in a culture that values...  

• Technical excellence and engineering ownership.
• Initiative-taking and confident decision-making.
• Strong team environment and the ability work with the most recent market-leading technologies.
• Initiative-taking and confident approach at the workplace.
• Global scope and inclusive working environment where you can engage with diverse teams and perspectives.
• Constant learning and development opportunities and professional growth programs.
• Active lifestyle and mental well-being, supported through sports classes, master classes, and monthly well-being activities.
• Medical insurance.
• Paid vacation days, sick leaves and national holidays.
• Fully-equipped cosy office space located in the city centre (Gulliver, “Palats Sportu” metro station)

IMS ENGAGEMENT UNIT 

The award-winning IMS (Information Management System) is the industry’s most compelling player management system and the power behind Playtech's entire product portfolio, providing the tools needed to run and manage every aspect of our online gaming operations.  Our team focuses on the development of Player Journey - a powerful, real-time platform automation tool that empowers organizations to design their players’ experiences and streamline operational workflows through personalized journeys. Whether the goal is to encourage newly signed-up players to deposit, re-engage lapsed players, or intervene to reduce the risk of gambling-related harm, Player Journey is a fast and reliable tool. By joining our team, you will have the ability to make a significant impact by creating balance and uniting the front-end and back-end functions. You'll work with the latest technologies on a constantly growing and advancing product. This stable opportunity offers you the chance to contribute to one of the top applications within the engagement unit. 

Playtech is an equal opportunities employer. Our mission is to welcome everyone and create inclusive teams. We celebrate differences and encourage everyone to join us and be themselves at work.

The project

You will own the development of a capability for scientific models - a custom application we are building on the Datagrok platform for one of our pharma customers. It's a central place where scientists register, discover, run, and compare computational models. Models come from different teams, in different languages, with different inputs and outputs. Your job is to turn that into one coherent, fast, self-service experience.

This is not a ticket-driven role. You will "sit" with the customer's scientists, understand how they work, and translate that into working software.

Responsibilities:

• Develop clean, high-performance, well-documented, production-level code
• Own your backlog: prioritize, estimate, communicate status, and drive features from a conversation to production
• Talk directly to the scientists and computational modelers: run demos, gather requirements, challenge assumptions, propose better ways to solve their problems on the platform
• Contribute improvements back to the platform and public plugins where the project uncovers gaps

Requirements:

• Expert-level TypeScript: you've designed and shipped non-trivial TS applications or libraries in pre-LLM era
• Engineering range: building elegant solutions from scratch, evolving complex existing codebases, and contributing efficiently across the whole stack, UI to backend
• Past projects in scientific or life-sciences software, complex modeling, or scientific computing (e.g., simulation engines, computational tools, statistical modeling apps, numerical/HPC code, etc.)
• Fluent spoken and written English: you will be in customer-facing meetings weekly, presenting your work and negotiating scope with scientists
• Willingness to learn new scientific domains
• Demonstrated ability to self-manage: you've owned a project or major workstream end-to-end and can point to something that shipped because you drove it to completion

Nice to have:

• Scientific background (STEM / life sciences)
• Python, R, C++, or Julia (enough to read and integrate scientists' model code)
• Experience with ML development and/or model lifecycle tooling (model registries, MLflow-style tracking, workflow engines)

We offer:

• Fully remote work
• Excellent growth opportunities in a highly dynamic, unique product company
• Zero bureaucracy
• Paid trainings and certifications
• Competitive compensation

We are looking for 2 experienced Full Stack Developers to join a team for an automotive project.

Tech stack

• Backend: Kotlin / Java
• Frontend: React
• Cloud: AWS
• Infrastructure: Kubernetes
• CI/CD: GitLab
• Messaging: Kafka
• Architecture: Microservices / Micro Frontends
• Development: Trunk-based development
• AI-assisted / agentic development workflows

Requirements:

• Strong backend development experience with Java/Kotlin or similar
• Solid React / frontend experience
• Experience with AWS / cloud environments
• Strong understanding of microservices
• Experience with Kafka / event-driven systems
• CI/CD and modern development practices
• Ability to work independently and take ownership
• Good English

What we are building
A data product that maps gambling regulation across more than 200 jurisdictions: which markets are open, who licenses operators, how they are taxed, what the advertising and player-protection rules are, and how all of it changes. Today it is a public, content-heavy site with strong organic traffic. Behind it sits a research database, a CMS for editors, and a monitoring system that reads regulators, gazettes and parliaments every day and turns what it finds into alerts and, increasingly, into corrections on the pages themselves.
Two things are changing. The front end is getting a full redesign with a product designer who has just joined. And the product is moving from a public reference to a paid one: user accounts, reports people can buy and find in their account, and a back office to run it. None of that exists yet. You would build it.

What you would own
 

• The web application. Next.js and TypeScript. Implement the redesign with the designer, keep the site fast and indexable, and later add accounts, authentication, payments and purchasable reports.
• The data layer. Several SQLite stores with a strict one-way flow from canonical data to mirrors, validation gates that refuse silent data loss, and scripts that apply researched corrections. You would keep these aligned and extend them as the product grows.
• The monitoring pipeline. Python services on a Linux server: crawlers for regulator sites, gazettes and parliaments, a matching layer, model-based vetting, and a Telegram bot the team uses to approve findings. You would make it catch more, post less noise, and land approved changes on the site.
• AI in the loop. We use models to build and to vet. You would design the pipelines that call them with fixed schemas, verify their output against the source, and treat everything they return as a claim until checked.
• Operations. One server, systemd, our own deploy script with rollback, continuous database replication, Cloudflare in front. Deploys must not break the live site, and the person who owns the code owns that too.
• The back office. Once accounts and reports exist, the tooling for the team to manage customers, content and data without touching the database by hand.
   

What we need from you
 

• Senior experience shipping and running production web applications end to end.
• Strong TypeScript and React. Next.js specifically, or the willingness to be fluent in it within weeks.
• Comfortable in Python for scripts, crawlers and services. Most of the monitoring code is Python and you will inherit it.
• Solid SQL and a habit of validating data rather than trusting it. Experience with SQLite is a plus; the discipline matters more than the engine.
• Linux server operations: systemd, deploys, backups, reading logs before guessing.
• Experience integrating LLMs into a pipeline with structured outputs, and a clear view of why model output is data, not instruction.
• A verification mindset. This product is only worth anything if the facts on it are right. You read the primary source, you check the figure, you say when you are not sure.
• Clear written communication. Most of our coordination is asynchronous and in writing.
   

Nice to have
 

• Technical SEO experience. The site lives on organic search.
• Auth, payments and subscription systems built from scratch.
• Scraping hostile or JavaScript-heavy sites, and knowing when to stop and look for an API instead.
• Interest in regulation, compliance or legal data. You do not need to know gambling law; you need to care whether a statute citation is real.
   

How we work

Small team, direct communication, decisions written down with the reason attached. Nothing in the current architecture is sacred: it reflects choices made along the way, and if you see a better direction for the code, the data layer or how we run things, we want that conversation. AI writes a lot of our code; your judgement decides what ships.

About Digis
Digis is a European IT company with 250+ specialists delivering complex products for 70+ clients across the U.S., Europe, and Canada. We focus on long-term collaboration, stable projects, and transparent processes.

About the Project

The position is open for an on-site setup in Warsaw, Poland with regular office attendance required.
You will join an AI-powered media/e-commerce project focused on creating digital media and video content around products and different niches.
The product enables users to create content using AI-generated avatars and influencers that can produce media on the user's behalf. The project is currently actively scaling.
The Full Stack Developer will work on building and improving the platform, developing end-to-end features, scalable backend services, and cloud-based solutions while contributing to the product’s technical growth.

Requirements

• 4+ years of professional experience in web development
• Strong hands-on experience with Python and React
• Hands-on experience with AWS services
• Advanced proficiency in using AI tools as part of the software development process
• Upper-Intermediate English level or higher

Responsibilities

• Develop and maintain full-stack applications using Python and React
• Build and maintain scalable backend services
• Develop and deploy cloud-based solutions on AWS
• Take ownership of features from development through production
• Use AI tools as part of the development process to improve engineering efficiency
• Collaborate closely with the team to deliver high-quality product features
• Contribute to technical decisions and continuous improvements of the platform

Advantages

• Work on an AI-powered media/e-commerce product at an active scaling stage
• Build features around AI-generated avatars, influencers, and digital content creation
• Take significant ownership over technical decisions and end-to-end feature delivery
• Work in a fast-paced startup environment where engineering decisions have a direct impact on the product
• Use modern technologies including Python, React, AWS, and AI development tools
• Contribute to building scalable solutions from early product stages
• Collaborate closely with experienced team and have direct impact on product evolution
• Work on a product combining software engineering, AI technologies, and modern media solutions

We Offer

• 20 paid vacation days per year
• 5 paid sick days
• Compensation for professional courses
• English learning support
• Work equipment
• Transparent communication and processes
• Accounting support
• Corporate psychologist

Summary
 

We're Receptor.AI, a TechBio company building an AI-driven drug discovery platform. We're looking for an outsource web developer for an ongoing engagement.
 

The first task is migrating our marketing site (receptor.ai) from Webflow to a modern code-based stack. But migration is just the starting point: after that, we need continued support - publishing new pages, maintaining and updating existing ones, placing new content (product pages, case studies, blog posts, campaign landing pages), fixing issues, and evolving the site over time.
 

If you're only interested in a single fixed-price build, this isn't the right fit - we're looking for someone we can keep working with long-term, paid hourly.
 

Requirements

• Experience working in an outsource/contractor capacity, comfortable with an ongoing relationship with variable scope (not only one-off fixed-scope projects).
• Proven experience (portfolio, case studies) migrating sites from Webflow to a code-based platform - not only greenfield builds from scratch.
• Solid knowledge of modern frontend frameworks (Next.js/React or equivalent) - the exact stack is open for discussion, not a fixed requirement on your side.
• Experience with headless CMS setups (Storyblok, Payload, Sanity, or similar), including configuring an editing interface usable by a non-technical content team.
• Understanding of SEO-safe migration practices: redirect mapping, noindex on staging, preserving metadata/canonicals.
• Experience migrating and verifying analytics and integrations: GA4, Google Tag Manager, Google Search Console, forms/CRM, cookie consent.
• Willingness to coordinate with a separate SEO/GEO specialist rather than handling SEO in isolation.
• Git/GitHub - required.
• Responsive to smaller, time-sensitive requests (a new page, a content edit, a bug fix), not only large projects.
• Bonus: experience working with AI coding agents (Claude Code, Cursor) on real projects.
• Bonus: strong written English for documentation and communication.
   

To apply, please send

• 2–3 relevant Next.js (or your proposed stack) websites, ideally including at least one Webflow-to-code migration.
• Your experience with headless CMS and ongoing content-maintenance work (not just initial builds).
• How you typically structure an ongoing engagement (hours per month, response times).
• Your hourly rate.

Start your proposal with "receptor" so we know you read the full posting.
 

Working model

• Remote.
• Hourly payment.
• Expected time commitment varies: heavier during the initial migration, lighter afterward for maintenance, new pages, and content placement.