Jobs Fullstack

About the role

We are looking for a Senior Fullstack Engineer to join Proxet and contribute to a long-term engagement with a UK-based technology company developing simulation and decision-support solutions for governments and enterprises.

Who are we looking for?

Skills & Experience:

• 7 + years of professional software engineering experience, with strong expertise in frontend development and hands-on backend experience.
• Strong knowledge of React and JavaScript, including component design, hooks, state management, routing, and asynchronous data handling.
• Experience building maintainable frontend architectures and reusable UI components.
• Solid knowledge of HTML and CSS, including responsive layouts and accessible interfaces.
• Hands-on experience developing Python backend services, application logic, and APIs.
• Experience integrating frontend applications with REST APIs, including authentication, validation, loading states, and error handling.
• Experience with relational databases, preferably PostgreSQL, including data modelling and query optimisation.
• Understanding of microservices, distributed systems, and the interaction between applications and backend services.
• Practical experience deploying and troubleshooting containerised applications using Docker and Kubernetes.
• Experience with CI/CD pipelines, Git workflows, and automated testing across frontend and backend components.
• Strong debugging skills and the ability to investigate issues across the application stack.
• Experience using AI coding assistants in development, with the ability to review, validate, and take responsibility for generated code.
• Experience communicating directly with customers or external stakeholders to clarify requirements and discuss technical solutions.
• Ability to explain technical concepts to non-technical audiences and translate operational needs into application features.
• Strong ownership, pragmatic technical judgement, and comfort working with evolving requirements.
• Understanding of the Ukrainian context and confidence in communicating with local organisations.
• Professional proficiency in Ukrainian and English for customer meetings, technical discussions, and written communication.
• Willingness and ability to travel to customer sites within Ukraine.
   

Nice to have

• Experience with mapping and geospatial visualisation tools such as Mapbox or deck.gl.
• Experience building interfaces for analytical workflows, complex datasets, or simulation results.
• Familiarity with Redux, RxJS, Vite, or similar frontend libraries and tooling.
• Experience with Node.js and frameworks such as Express or NestJS for work across broader platform tooling.
• Experience with Kafka, Dagster, or other messaging and data-processing technologies.
• Familiarity with gRPC, document databases, and object storage.
• Experience with GCP, AWS, Azure, or private-cloud deployments.
• Familiarity with Helm or OpenShift.
• Experience integrating AI agents, MCP interfaces, or LLM APIs.
• Experience working with public-sector organisations, local authorities, or infrastructure operators.
• Familiarity with simulation platforms, digital twins, or decision-support systems.
   

Responsibilities

• Design, develop, and maintain fullstack applications, with a primary focus on React interfaces and supporting Python backend services.
• Build user workflows for configuring scenarios, interacting with platform capabilities, and exploring simulation results.
• Develop reusable UI components and client-side integration layers that simplify access to platform services.
• Implement backend logic, APIs, and data integrations required by the application.
• Work directly with customers and external organisations in Ukraine to understand their processes, needs, and operational constraints.
• Participate in customer meetings and on-site visits, demonstrate functionality, gather feedback, and clarify technical options.
• Translate customer needs into application features and deliver them from implementation through testing and deployment.
• Adapt existing platform capabilities to local use cases and share relevant feedback with engineering and product teams.
• Integrate applications with customer data, backend services, and containerised simulation capabilities.
• Work with PostgreSQL and collaborate with backend engineers on data access and processing workflows.
• Improve frontend performance, API interactions, and application reliability.
• Write and maintain automated tests across frontend and backend functionality.
• Contribute to CI/CD workflows and deployment of containerised applications in Kubernetes-based environments.
• Troubleshoot issues across the UI, APIs, data integrations, and deployment environment.
• Collaborate with backend engineers, platform specialists, modellers, and delivery stakeholders.
• Participate in code reviews and technical design discussions, documenting important decisions.
• Use AI development tools effectively while maintaining code quality, correctness, and maintainability.

About the project
We are building a comprehensive client contact data discovery and management platform that automates the entire workflow of finding, collecting, and working with client information. The application combines powerful data collection capabilities with advanced automation features to streamline client relationship management processes.
 

Responsibilities:

— Develop and maintain backend microservices using NestJS;
— Build and enhance frontend features using Angular + TypeScript;
— Design and implement REST APIs for client data collection and automation;
— Work with data processing pipelines, business logic, and system integrations;
— Implement messaging and caching solutions using RabbitMQ/Redis;
— Participate in architecture discussions and feature development;
— Write and maintain tests (unit and e2e);
— Optimize database queries and ensure data integrity in PostgreSQL.
 

Required skills:

— 2+ years of commercial experience as a Full-stack or Software Developer;
— Strong experience with Node.js and NestJS framework;
— Proficiency in Angular and TypeScript;
— Understanding of REST API design and integration;
— Experience with relational databases (PostgreSQL) and ORM (TypeORM or similar);
— Knowledge of messaging systems (RabbitMQ) or caching (Redis);
— Experience with Docker and Git;
— Understanding of testing approaches (unit/integration/e2e);
— Experience with AI integrations (Claude, Gemini, or similar);
— English level: Upper-intermediate or higher.
 

Will be a plus:

— Experience with Nx monorepo tooling;
— Hands-on experience with Elasticsearch for search functionality;
— Familiarity with microservices architecture and design patterns.
 

We offer:

— Opportunities for career growth and personal development, to help you improve your skills and achieve your goals;
— No micromanagement - your ideas and initiatives are always encouraged;
— Educational programs that are covered by the company at 30% of the expense;
— Paid vacation leave and public holidays (21 vacation days annually);
— Competitive financial compensation with regular performance reviews;
— Outdoor team activities are paid for by the company;
— English language improvement through extensive communication;
— The chance to work alongside highly experienced and enthusiastic IT professionals who are ready to share their knowledge and help you gain invaluable experience in a live IT environment.

AI-First Senior Software Engineer

Ukraine · Remote · Full-Time

Company: Orbox.ai - AI-Native PropTech Operating System for Real Estate

Location: Ukraine - remote, anywhere in Ukraine (candidate must be located in Ukraine)

Employment: Full-time, permanent

Seniority: Senior

Reports to: Technical Lead

Works with: AI-Engineer, Product Analyst, UI/UX Designer, QA Engineer

PropTech experience: Not essential, very good if has direct or indirect experience

English: Advanced (B2-C1)

About

We are building an AI-native operating system for real estate. The product is a PropTech platform where LLMs and AI agents are not bolted on top - they are the architecture. Owners, operators and guests interact with the AI system through natural language. AI autonomously generates compliance documents, routes staff, answers guest queries from a RAG-indexed knowledge base in real time and orchestrates financial split-payments.

But the product is only half of it.

We are equally an AI-first delivery organization. The way we discover, define and ship is as differentiated as what we ship. Specs, stories and designs are machine-readable artifacts our coding and review agents consume directly - and senior engineers are the ones who design the system, direct the agents and own every line that reaches production.

The role

This is the role that turns machine-readable specs into production software - by leading AI agents, not by typing every line yourself.

You will report directly to the Chief Operating Officer, with short decision loops to founders and direct access to product, design and QA.

This is a hands-on senior engineering role at the core of the delivery machine. Most of our code is written by AI coding agents against machine-readable specs. That makes senior engineering judgment more valuable, not less: agents write fast, but still pick wrong abstractions, miss edge cases, leak data across tenants and ship code that passes its own tests and breaks in production. You are the engineer who designs the system, sets the guardrails and owns what gets merged.

You will build and ship features end to end across backend, frontend and integrations: service design, data models, APIs, UI, government and third-party integrations, AI features (LLM agents, RAG, document generation) and the infrastructure they run on.

You will work side by side with the AI-First Product Analyst (who writes the specs), Product Designers (who own the mockups) and QA (who holds the release bar). You will use our shared Claude Team / Claude Code with premium seating along with the company's AI tools daily, deeply and natively - not as a novelty, but as the default way you work.

We operate in a fast-moving startup environment where speed and precision both matter. You must be opinionated about which engineering tasks AI does well today (boilerplate, refactors, tests, migrations, docs), which it does not (architecture, security boundaries, trade-off calls, debugging subtle production issues) - and how to combine both deliberately.

What you will own & do

AI-First Engineering

• Daily, deep, native use of AI coding agents for implementation from specs, refactoring, test writing, code review, debugging and documentation.

• Treat agents like a team you lead: clear specs in, reviewed code out - you own the context, rules files, guardrails and the review bar.

• Build and improve our agentic delivery pipeline: repo conventions, agent instructions, MCP tooling and CI checks that keep agent output safe to merge.

• Contribute to internal evals from the engineering side: define what “good” looks like for AI-generated code and for our user-facing AI features.

Product Engineering

• Own features end to end: from spec & acceptance criteria to design, implementation, tests, deployment and monitoring on prod.

• Design clean service boundaries, data models and APIs for a multi-tenant B2B2C platform with role-based access.

• Build complex frontend surfaces: dashboards, real-time data, multi-step workflows, back-office tooling.

• Integrate with government and regulatory APIs, payment providers and third-party systems - reliably, idempotently, with proper error handling and audit trails.

AI & LLM Systems

• Build production AI features: LLM agents, tool calling, RAG pipelines, compliance document generation - with grounding, fallbacks and cost control.

• Engineer the non-deterministic layer: prompt versioning, structured outputs, guardrails against hallucinations and prompt injection, tenant-safe retrieval.

• Instrument AI behaviour with tracing, logging and metrics - treat AI output as something to be measured, not trusted.

Engineering Quality & Ownership

• Own the merge bar: review agent and human PRs, enforce architecture, security and performance standards.

• Write automated tests and CI that make agent output safe to ship; partner with QA on test strategy and release readiness.

• Feed spec & story defects back upstream: when the work item is wrong or ambiguous, it gets fixed at the spec layer, not hacked around in code.

• Shape the engineering practice at an early stage: conventions, environments, observability, incident handling - lightweight enough for startup speed, rigorous enough to trust.

What we are looking for

Must have

• 4+ years of hands-on software engineering on production web products, with senior-level ownership of a system or major product area.

• Strong full-stack skills: modern backend (TypeScript / Node.js or Python), modern frontend (React / Next.js or similar) and relational databases (PostgreSQL or similar).

• Daily, deep, native use of AI coding tools (Claude Code, Cursor or similar) in your engineering workflow. You have a real, opinionated workflow built around them and can defend your choices.

• Hands-on experience building LLM-based features: agents, tool calling, RAG, structured outputs - shipped to production, not just demos.

• Solid system design: multi-tenant SaaS, role-based access, API design, async processing, third-party integrations.

• Critical code review skills: you read AI-generated code with suspicion and catch what agents miss - security holes, data leaks, wrong abstractions, hidden complexity.

• Cloud & DevOps fluency: Docker, CI/CD, at least one major cloud (AWS / GCP / Azure), logging and monitoring.

• 0 → 1 mindset: comfortable in an early-stage team, working directly with founders and product, shipping fast without losing rigor.

• Strong written and verbal communication in English - including specs, PR descriptions and technical discussions.

Strong advantage (Nice to have)

• Background in PropTech, hospitality tech, Fintech or multi-sided marketplace platforms.

• Exposure to payment flows, compliance / regulatory workflows, document-generation systems or government API integrations.

 Experience with LLM evals and observability (Langfuse, LangSmith or similar) and vector databases.

• Real-time systems, IoT or tokenization / blockchain infrastructure.

Why this role

You will help build the first AI-native operating system for real estate in Dubai and define how software gets built when AI agents write most of the code.

• Genuine engineering ownership.

• Clear growth trajectory - Tech Lead / Engineering Lead.

• Direct access to founders and the Chief Operating Officer.

• Technically ambitious product surface - AI-native, Agentic system, RAG, IoT, real-time systems, government APIs, tokenization.

• AI-first by default.

Location: candidates must be physically based in the US or Canada, with the right to work there. Full overlap with Central Time (US) business hours. 

Format: long-term contract, full-time 

Rate: $30–35/h (contractor, net) 

Start: early–mid December 2026 

About the project 

A US fintech/payments SaaS company is looking for a Senior Full-Stack Engineer to join a very small product team. The product is an AI-driven platform that helps subscription merchants recover failed payments. You will work directly with the lead engineer, with minimal hand-holding. 

What you will do 

- Build frontend features in React / Next.js (deployed on Vercel) 

- Build backend services in Python / FastAPI (microservices on AWS), including new payment provider integrations 

- Integrate external services (payment processors, email delivery) - Work with the product's AI components on the integration level - Cover merchant requests and support tasks with the lead engineer

 - Write your own automated tests 

Requirements 

- 5+ years of full-stack experience

 - Strong React and Next.js 

- Solid Python (FastAPI or similar) 

- Microservices on AWS, CI/CD basics 

- Experience integrating LLM / AI services into a product 

- Fluent, confident spoken English: you will talk to the team and merchants daily

 - Self-sufficient, clear written communication, calm with on-call style interruptions 

Nice to have

 - Payments / PSP integrations (Stripe, Braintree, Adyen) 

- Temporal or other workflow orchestration 

Hiring process Screening call → technical interview → client interview → possible short take-home (3–4 h) → contract.

DARLY SOLUTIONS is an international IT company specializing in delivering innovative solutions across Fintech, MedTech, SaaS, etc.
We are looking for a specialist for a short-term project engagement.

Responsibilities

• Develop and finalize the frontend of the product MVP.
• Build and maintain frontend components using Qwik or React.
• Integrate the frontend with the existing .NET backend.
• Design and implement a Backend for Frontend layer using .NET.
• Integrate third-party services, including Stripe and other external providers.
• Work with high-fidelity wireframes, UI libraries, and product tickets in Figma and GitHub.
• Participate in two-week development sprints and deliver tasks according to agreed timelines.
• Collaborate on clarifying and refining product requirements as needed.
   

Requirements

• At least 7 years of experience in Full Stack Developer (.NET + React). 
• Strong experience with modern frontend development and component-based architecture.
• Experience with Qwik or React.
• Strong knowledge of .NET and experience building backend services or APIs.
• Experience designing and implementing a Backend for Frontend architecture.
• Experience integrating third-party APIs and services, including payment providers such as Stripe.
• Upper-Intermediate (B2) English level, with confident spoken communication skills.
• Understanding of frontend-backend communication, API integration, and data handling.
• Ability to work independently, take ownership of frontend development, and drive tasks to completion.

We are partnering with an AI-focused technology company that builds intelligent automation solutions for businesses, including AI-powered workflows and agent-based systems. The team works on practical AI applications designed to streamline complex processes and improve operational efficiency.

About the role

We are looking for a Middle-level Engineer to join a team developing AI-powered solutions and automation workflows for healthcare-related products. You will work under the guidance of the existing technical team, contributing to implementation, integrations, and product development.

Requirements

• 2+ years of relevant software development experience.
• Hands-on experience working on healthcare or HealthTech projects.
• Knowledge of HIPAA and SOC 2 requirements, with experience handling sensitive personal and healthcare data.
• Familiarity with LangChain or comparable AI development frameworks and platforms.
• Experience with one or more of the following technologies: Python, TypeScript, Java, React.
• Understanding of AI integrations, automation workflows, or LLM-powered applications.
• For Front-End Engineers: experience building enterprise dashboards and a solid understanding of UI/UX principles.
• Ability to work collaboratively and deliver production-ready code.
• Upper-Intermediate English or higher.
• Availability to overlap with US business hours for team syncs and meetings.

Nice to have

• Experience with agentic workflows, AI agents, or multi-step automation.
• Familiarity with voice AI solutions, LLM performance optimization, or token optimization.
• Experience implementing security, privacy, or compliance-related features in healthcare applications.

Work setup and availability

• 100% remote.
• Full-time engagement.
• Expected start date: early November 2026.
• Regular overlap with US business hours for team syncs and meetings.
• Opportunity to work on practical AI-driven products alongside an experienced technical team.

Project details

We are looking for a Senior Software Engineer to join the SDK team of a global leader in AI-powered test automation, whose visual AI testing platform is trusted by enterprises and startups worldwide, including many of the world’s largest companies.

This role involves building and owning the SDKs that bring visual and functional testing into customers’ existing test suites, with a strong focus on JavaScript/TypeScript, browser internals, and the Chrome DevTools Protocol. The SDKs integrate with the frameworks developers already use, including Playwright, Cypress, Selenium, WebdriverIO, Puppeteer, Appium, and Storybook. You’ll help design and maintain a clean, stable public API that thousands of CI pipelines depend on every day, working closely with the engineering group as an integrated member of a hybrid team.

About the project:
Think of the SDK as a “programmatic frontend” for the platform: not a UI, but a public API used at massive scale. JavaScript/TypeScript is the core development environment, with SDKs also available for Java, Python, .NET, and Ruby.
The team relies on a minimal set of third-party libraries and builds most of the core functionality in-house.

Key responsibilities

• Contribute to the architecture and implementation of the SDKs.
• Own the full development lifecycle of advanced JavaScript libraries that integrate with test frameworks, user applications, and server APIs.
• Design APIs and communication protocols with a focus on performance and asynchronous flows.
• Integrate with leading test automation frameworks such as Playwright, Cypress, Puppeteer, WebdriverIO, Selenium, Mocha, and Jest.
• Build tooling that leverages browser internals and the Chrome DevTools Protocol (CDP).
• Use Claude and agentic workflows as part of your everyday development process to speed up development, testing, and debugging.
• Investigate and resolve complex issues that surface only in customers’ environments.
• Take on independent research tasks, from evaluating browser automation approaches to improving performance on mobile platforms.
• Collaborate with engineering, product, and QA to ensure technical quality and smooth delivery.

Requirements

• 5+ years of hands-on industry experience developing and maintaining production-grade software in a product environment.
• Strong proficiency in JavaScript and TypeScript.
• Experience with Node.js and NPM tooling.
• Familiarity with test automation frameworks or the Chrome DevTools Protocol.
• Hands-on experience using AI-assisted development tools in your daily workflow to accelerate development.
• Proven experience working in hybrid or extended teams, collaborating day to day with engineers in another country.
• Excellent written and spoken English, with clear, confident verbal communication.
• A true team player who communicates openly and takes shared ownership of results.
• Based in Warsaw and able to work from the office 3 days per week.

Will be a plus:

• Understanding of browser architecture (DOM, rendering, caching).
• Experience with MCP, LLM agents, or tool-calling integrations.
• Contributions to open-source projects and developer communities.
  What we offer:
• - A friendly environment where you can reach your full potential and grow your career.
• - A long-term, full-time B2B contract with a Polish company.
• - Paid vacation days, paid sick leave, and paid days off on all Polish public holidays.
• - Hybrid work in Warsaw: 3 days per week in the office, the rest of the time remotely.

About Eastern Peak

We are a technology provider of custom hardware and software development solutions and digital transformation consulting services.

We help our clients adapt and evolve in the face of disruptive new technologies, dynamic global markets and rapidly changing regulatory environments. We do it by modernizing their legacy systems, automating business processes and creating the technological foundation to withstand and embrace continuous change.

We develop and deploy unique data analytics capabilities across their infrastructure and introduce competitive advantages by utilizing the advances in technology such as IoT, AI, Cloud, Big Data, AR/VR and others.

Project details

We are looking for a Senior Full-Stack Engineer to join the team behind an AI-powered autonomous testing platform, built by a global leader in AI-powered test automation whose products are trusted by enterprises and startups worldwide, including many of the world’s largest companies.

This role involves end-to-end feature development across a TypeScript stack, from the Node.js backend to the React frontend, with an AI-first approach at every step of the development workflow. You’ll own features from technical design to production, work closely with Product and Design, and collaborate daily with the client’s engineering group as an integrated member of a hybrid team.

About the product.
The team builds an AI-powered platform that lets teams create, run, and maintain end-to-end tests with minimal manual effort. Instead of writing test code, users simply provide a URL: the platform crawls the application, automatically generates visual and functional tests, and organizes the results in a centralized dashboard.

Key responsibilities

• Design, build, and ship product features end to end across the TypeScript stack (Node.js and React).
• Own features from technical design through development, testing, release, and production monitoring.
• Think like a product owner: dig into the “why” behind features, balance user needs with technical tradeoffs, and take real ownership of the product experience.
• Work closely with Product, Design, and your teammates in Israel to turn requirements into clean, well-architected solutions.
• Contribute to architecture discussions, code reviews, and engineering best practices.
• Use Claude and agentic workflows as part of your everyday development process to move faster, and help build shared AI automations for the team.

Requirements

• 5+ years of hands-on software engineering experience in SaaS or product-driven companies, delivering features as a full-stack engineer on cross-functional product teams.
• 3+ years of production experience across the full stack with TypeScript, Node.js, and React.
• Hands-on experience using AI-assisted development tools in your daily workflow to accelerate development.
• Exceptional collaboration and communication skills, with a track record of partnering closely with product managers, designers, and fellow engineers.
• Proven success working in distributed or hybrid teams, collaborating daily across time zones (ideally with international engineering groups).
• Fluent written and spoken English, with the ability to explain complex technical ideas and tradeoffs clearly and confidently.
• A strong sense of ownership, self-direction, and an open, egoless communication style.
• Based in Warsaw and able to work from the office 3 days per week.

Will be a plus:

• Familiarity with test automation tools and frameworks (Playwright, Cypress, Selenium).
  What we offer:
• - A friendly environment where you can reach your full potential and grow your career.
• - A long-term, full-time B2B contract with a Polish company.
• - Paid vacation days, paid sick leave, and paid days off on all Polish public holidays.
• - Hybrid work in Warsaw: 3 days per week in the office, the rest of the time remotely.

About Eastern Peak

We are a technology provider of custom hardware and software development solutions and digital transformation consulting services.

We help our clients adapt and evolve in the face of disruptive new technologies, dynamic global markets and rapidly changing regulatory environments. We do it by modernizing their legacy systems, automating business processes and creating the technological foundation to withstand and embrace continuous change.

We develop and deploy unique data analytics capabilities across their infrastructure and introduce competitive advantages by utilizing the advances in technology such as IoT, AI, Cloud, Big Data, AR/VR and others.

About the Role (Backend)

We're looking for a curious and motivated Junior Backend Engineer to join our team. You'll be building backend services and REST APIs and working with AWS or Azure infrastructure.

Our projects use Python or C#, but since all of our code is written with AI, we are considering candidates with any OOP language, including JavaScript and Java. What matters is how you think about software: object-oriented design, APIs, and data.

We work in pairs — juniors are always paired with another junior or someone at a similar level, not just for code reviews, but for day-to-day coding, architecture decisions, and problem solving, with seniors close by whenever you need help. This is production work: you'll ship services that customers rely on, with the safety net of another teammate beside you.

The client is US-based, so the team works US business hours; for engineers in Ukraine, this means your working day ends around midnight Kyiv time. This role can be full-time or part-time, depending on your availability.

What You'll Work On

• Backend Services & APIs — build and maintain REST APIs and backend services for client platforms, with clear contracts and automated tests.
• AWS or Azure Infrastructure — work with cloud infrastructure on AWS or Azure, depending on the project.
• CI/CD using GitHub Actions or Azure DevOps pipelines.

Tech Stack

• Backend — Our projects use Python or C#, depending on the engagement. You do not need to know either one — all code is written with AI, and you'll learn the project's framework on the job.
• Cloud — AWS or Azure, depending on the engagement. Nice-to-have, not required.

Working Hours & Format

This role can be full-time or part-time, depending on your availability. It's fully remote. Our client operates on US business hours, so the schedule needs to align with US time zones — for engineers based in Ukraine, your working day will end around midnight Kyiv time.

Requirements

Solid fundamentals in OOP and comfort with at least one OOP language — it does not matter which.

Exposure to AWS or Azure is a plus, but not required — you'll pick up what you need on the job. We care more about your curiosity and attitude than your CV.

About Us 

ChatRevenue.ai was founded by Ratmir Timashev (founder of Veeam) 

and Vlad Voskresensky (founder of Revenue Grid) to create the next generation of CRM systems. 

We’re building an AI-native CRM platform that completely redefines how sales automation 

works. 
By structuring data for intelligent automation, we enable agentic AI to design workflows, assist Sales Leaders and Reps in real time, and generate predictable sales funnels – all through a simple, chat-driven interface. 

Our mission: to build a CRM that works for User, not the other way around. 

About the Role 

This role is for engineers who thrive in dynamic environments where processes are still being shaped and impact is immediate. 

At ChatRevenue, we focus on outcomes rather than ceremonies – no endless grooming sessions or heavy planning rituals. 

Our engineering processes are evolving, and you’ll have a direct influence on how they are structured. There are no excessive management layers or long approval chains – decisions are made quickly through open discussion and direct collaboration. 

Previous startup experience is not required. What matters is your ability to operate without rigid rules, take initiative, and make independent technical decisions. 

What You’ll Do 

• Architect and maintain backend services using Python / FastAPI 
• Build seamless integrations with between our code product and external ecosystems (CRM, communication platforms) 
• Design and optimize scalable ETL/ELT pipelines 
• Develop and deploy production-ready Generative AI features to enhance product capabilities 
• Lead features from initial technical design to production release and ongoing support 
• Deliver high-quality code in short, impactful cycles 
• Maintain DevOps best practices (testing, CI/CD, security, containerization) 

What We’re Looking For 

• Strong Python skills (FastAPI, async, Pydantic) 
• Experience with SQL (PostgreSQL), Pandas, and data pipelines 
• Solid understanding of HTML/CSS/JavaScript
• Hands-on experience with Docker, Kubernetes, Azure, Kafka 
• Experience with CI/CD and Git-based workflows 
• Curiosity about product-building and openness to evolving environments 
• Strong teamwork skills – constructive code reviews, active participation in technical discussions, and ownership mindset 

Nice to have 

• Experience with OpenSearch 
• DevSecOps exposure 
• Advanced debugging skills 
• Azure API Management 
• Experience developing Generative AI features 
• Integrations with Salesforce, Google Meet, or similar platforms 

Why Join Us 

• Remote-first culture – work from anywhere 
• Flexible schedule aligned with European time zone 
• No bureaucracy or micromanagement – transparent and fast decision-making 
• Direct product impact – your work ships quickly and is visible in production 
• Real ownership – influence architecture and technical direction 
• Unlimited paid vacation and paid sick leave 
• Company-provided equipment 
• Premium AI tools subscription (ChatGPT, Copilot, Claude) 
• Professional growth – opportunity to own a technical domain or lead a module as the company scales 
• Competitive compensation starting from $6,000

If you want to build an AI-native CRM from the ground up and be part of the core team shaping the product, we’d love to hear your story. 

Apply or reach out directly – let’s build something truly transformative together. 

We’re expanding our engineering team and looking for developers who are comfortable building production-grade React and Node.js applications for early-stage companies in healthcare, fintech, and AI.

Although the role is primarily front-end oriented, the ability to contribute to backend services in Node.js is important.

You’ll join a team with clear processes, a modern stack, and a strong engineering culture.

What you will do

• Create web applications using React and related tools.
• Develop and support backend services and APIs with Node.js (Nest.js or similar frameworks).
• Work with cloud platforms and container tools such as Docker, Kubernetes, AWS, or GCP.
• Join architecture discussions, suggest improvements, and help maintain high code standards.
• Collaborate with the client’s team on project tasks in English.

What we expect

• Strong understanding of JavaScript (ES6+) and TypeScript.
• Solid hands-on experience with React.
• Strong knowledge Node.js and frameworks like Nest.js or Express.
• Experience building APIs with Node.js-based frameworks.
• Understanding of relational and NoSQL databases such as Postgres, MongoDB, Firebase, or Supabase.
• Ability to write clean, maintainable code following best practices.
• English level: Upper-Intermediate (B2) or higher.

Additional advantages

• Experience working with major cloud providers such as AWS or Google Cloud.
• Experience with React Native.
• Solid understanding of Docker and Kubernetes.
• Familiarity with CI/CD pipelines (GitHub Actions, GitLab CI, CircleCI).
• Practical experience working with AI/LLM integrations in projects.

What we offer

• Engaging projects built with a modern, well-supported tech stack.
• A review process that ensures consistent feedback and knowledge sharing.
• A culture focused on continuous learning and professional development.
• Full remote work with a team distributed across multiple countries.
• Competitive compensation in USD with periodic performance reviews.
• Flexible payment methods tailored to your location.
• Work schedule aligned with your time zone.
• English practice sessions.
• Paid sick leave and annual vacation (15 business days).
• Regular team activities online.
• Coverage of monthly psychologist support sessions.

What should you know about SKELAR? It's a venture builder — in other words, a company that builds companies. Together with founders, we create consumer businesses that become leaders in global markets across EdTech, Mental Health, Petcare, FashionTech, and beyond.

Our teams build tech products that win recognition from Product Hunt and The Webby Awards, earn thousands of glowing Trustpilot reviews, and reach over 10 million users worldwide. That kind of impact doesn't happen by accident — it starts with exceptional people, and our people are our top priority.

We've built an environment where expertise meets opportunity, and where there's no ceiling on what you can achieve. Now we're looking for the kind of people who don't just want a job — they want a challenge.

We’re looking for a Head of Engineering for our partner company, Duomo.

Duomo is an app rooted in Christian values, helping people turn Scripture into daily habits and inner peace. We’re building a leading Christian-tech product for people seeking spiritual renewal.

You will be responsible for:

• Leading the Engineering Team: Managing and developing a team of 12 engineers across backend, full-stack, and mobile development.
• Driving Business Impact: Setting clear goals, hiring and developing strong engineers, and aligning engineering priorities with business goals to drive team performance and business growth.
• Owning Engineering Processes: Improving workflows and execution speed to ensure engineering doesn’t become a bottleneck for business growth.
• Providing Technical Leadership: Acting as a technical advisor, guiding engineering decisions, and helping the team solve complex challenges.
• Building a Strong Team: Creating an environment where engineers feel supported and heard, fostering trust and accountability, and helping the team grow and deliver results.
• Staying Hands-on When Needed: Contributing to technical tasks in critical situations, while keeping people management and team leadership as the main focus.

What you need to succeed in this role:

• Engineering Leadership: Experience leading and developing engineering teams.
• Technical Background: Strong software engineering foundation. Experience with JavaScript/TypeScript and Node.js or a Java background with readiness to adapt to another stack.
• Cloud Infrastructure: Experience with cloud infrastructure, particularly AWS.
• Scaling & Processes: Experience scaling engineering teams and improving processes in a growing business.
• Product Mindset: Ability to balance technical quality with business priorities and delivery speed.
• People Management: Ability to develop engineers, set clear expectations, and build a culture of ownership.
• Stakeholder Management: Experience working closely with the CEO and business leaders to align engineering with business goals.

Why Duomo:

— You’ll work on a product with a clear mission and real values.
— You’ll help us transition from a content-rich app into a truly connected spiritual platform.
— You’ll be early enough to influence how product is done at Duomo long-term.

What we offer:

— Competitive salary;
— Significant impact on a rapidly growing business and contribution to how it shapes up;
— Ample career opportunities for ambitious growth and development;
— A possibility to attend internal, external courses, seminars and the access to a corporate library;
— Comfortable working environment. We provide all necessary work equipment for your role and serve complimentary breakfasts, lunches, and snacks in the office;
— 20 days of paid vacation, medical insurance and a variety of sports activities available for employees inside and outside the office.

At SKELAR, we've built an environment where people can grow, build, and do the most meaningful work of their careers:

• SKELAR Platform. The operational backbone of our venture builder. It exists to help founders move faster and easier — so business teams can stay laser-focused on the product while 10+ specialized Platform takes care of everything else: Legal, Finance, HR, Admin, Talent Acquisition, Employer Branding, IT, and more.
• Networking and knowledge-sharing as a way of life. Our people include co-founders who've launched multiple businesses and some of the sharpest specialists in the industry. Whatever expertise you need, it's never far away.
• Learning programs you won't find anywhere else. We've developed our own educational tracks for teammates to choose from — a two-month school for first-time managers, intensive AI workshops, and professional clubs for engineers, product managers, and more.
• Meaningful impact in Ukraine. The SKELAR Foundation was created by our own people, and every employee plays a part in bringing important social initiatives to life. We founded Europe's first accelerator for veterans and are working to build lasting support structures for veterans at a national scale.
• Spaces designed to inspire. Our offices are places people actually want to be — with an in-house gym, a climbing wall, Bali-inspired green spaces, and libraries. Every detail, from service and security to comfort and design, is built to match the pace of our growing teams.
• Everyday comfort built in. Meals, gym access in Kyiv or a partial fitness stipend in Warsaw, health insurance, paid business travel where the role requires it, and corporate partner discounts.

We'd love to tell you more in person.

Join us at SKELAR and help build the next big everything!

WHO WE ARE 

Amplifa is a 1-year-old bootstrapped startup. Our primary product is an agent that finds leads and books meetings with potential customers for European industrial manufacturers. We are a tight, super productive team based in Dusseldorf and Tel Aviv. 

This role will work directly with the CTO and have substantial responsibility and input within the company. 

During the hiring process we will communicate clearly and quickly with you about next steps. Our goal is to find the right person to join our team for the long term, as quickly as possible. 

IS THIS YOU? 

The right person to join our team is a full-stack human. You aren't stuck in the code, you understand the product. You combine technical expertise with great communication skills, can work independently, and take pride in building stuff that people actually use.

• True full-stack developer 
• Comfortable with UI, backend, databases, and basic devops 
• Take pride in owning complex features from end to end 
• Loves building 
• Excellent written communication in English 
• Has strong opinions on the best way to work with coding agents 
• Experience implementing AI features at scale in production apps 
• Experience in Rails or similar frameworks
• Good vibes

INTERVIEW PROCESS 

1. INITIAL APPLICATION - Submit your resume and a 1-minute video (via text field in application!). In the video, introduce yourself and tell us about what you found most interesting/exciting in your most recent project. It doesn’t need to be perfect production, just be yourself. 
    
2. MAIN INTERVIEW - If you seem like a good candidate, we will then send you a link to book a 1-hour interview, which will include both general questions and a short technical screening. 
    
3. TAKEHOME ASSIGNMENT - If you pass the interview, you will receive an (interesting!) takehome assignment, with token budget. It should not take more than 6 hours. 
    
4. FINAL INTERVIEW - If you complete the takehome assignment to spec, you’ll do a final (brief) get-to-know you interview with the other founders, and we will discuss salary and onboarding. 

Full-Stack Developer at FlashProxy

Remote, full-time. Ideally someone in Eastern Europe who can work hours that overlap with GMT+3.

FlashProxy sells proxy and IP infrastructure on subscription. Small team, so you'd work directly with the founders and actually own your work instead of pushing it through endless approvals.

We need a full-stack dev to handle the software side: our website, our APIs, and the internal dashboards the team runs on. Long-term and full-time, not a short contract.

What you'll do

• Build and maintain our website
• Design and extend our APIs
• Build internal dashboards and tools for the team
• Own features start to finish, not just code someone hands you

What we need

• A few years of solid full-stack experience, strong on both front and back end
• Good with API design and databases
• Someone who can run with things on their own and cares about doing them right
• Fluent English, since you'll be talking to us daily

Stack (roughly): TypeScript, React/Next.js, Node, Postgres, Supabase. You don't need all of it if you pick things up fast.

Later on there's room to get into the infrastructure side, the networking that actually runs the product, and to start helping clients with the technical stuff. Something to grow into, not a requirement now.

To apply: send a short intro, your GitHub or examples of what you've built, and the rate you're after.

A potential invitation to potential minds!

4K-Soft is People. People are most important to us. People are at the heart of every connection we build. Come and join 4K-Soft, where human minds come together to pave the way for the future. We offer a variety of full-time jobs, training programs and internships. Only imagine, how you can help our company and start your career with 4K-Soft!

We are looking for a Strong Junior FullStack Web Developer.

What we expect from you:

2+- years of commercial experience:
 

• Node.js
• React
• PostgreSQL

We offer:
 

Competitive level of remuneration

Modern comfortable office or remote work

Convenient work schedule, paid vacation and sick leaves

The opportunity to grow professionally by participating in the implementation of interesting and complex projects, as well as showing personal initiative.