Jobs Fullstack

We are looking for a skilled and motivated AI Automation Engineer to join our Engineering team, focusing on building and maintaining autonomous, AI-augmented growth systems. You will be instrumental in bridging backend engineering, AI implementation, and low-code automation to deliver exceptional, self-driving workflows. This role requires a strong understanding of backend logic, API integrations, and modern AI tooling, with a critical focus on system reliability and scalable architecture.
 

Requirements

To be successful in this role, you should meet the following minimum experience standards:

• Node.js Backend: 3+ years of professional experience building scalable backend services, specifically handling asynchronous programming and complex logic.
• Automation Expertise: 1+ years of hands-on experience (or deep technical curiosity) with workflow automation platforms like n8n (preferred) or Make.com, Zapier, including writing custom code nodes.
• Database Proficiency: Strong working knowledge of relational databases, specifically PostgreSQL or MySQL, including schema design (e.g., session management tables), joins, and query optimization.
• API Integration: Solid command of integrating third-party APIs (REST/GraphQL), handling authentication (OAuth2, API Keys), and managing rate limits for tools like Slack, Google Drive, and Semrush.
• AI Implementation: Experience integrating LLMs (e.g., OpenAI API, Gemini) into workflows, including prompt engineering and handling JSON outputs from models.
• Version Control: Familiarity with Git and modern CI/CD workflows for deploying backend services.
• Availability: Ability to work 4-5 hours in EST timezone (Toronto), GMT-5.
   

Desirable Experience (Plus Skills)

Experience in any of the following areas is a significant advantage:

• Dashboard Development: Experience with modern JavaScript frameworks, specifically Next.js or React, to build internal front-ends or analytics dashboards for the agents.
• Advanced AI Workflows: Familiarity with LangChain concepts, vector databases (RAG), or agentic orchestration patterns.
• Cloud Infrastructure: Experience deploying services on platforms like DigitalOcean, Google Cloud, or AWS using Docker.
• Technical SEO: Understanding of SEO data metrics (Volume, KD, CPC) to better engineer the logic behind keyword and content agents.
   

Key Responsibilities

• Develop & Orchestrate Agents: Build and maintain the suite of AI agents using n8n and Node.js.
• Backend Logic & Custom Nodes: Write clean, scalable JavaScript/TypeScript code for complex data transformation, error handling, and session management within automation workflows.
• API Ecosystem Management: Implement and maintain robust integrations between Slack (user interface), Google Drive (storage), OpenAI (intelligence), and Semrush, Google Analytics, Google Search (data source).
• System Reliability: Actively monitor, troubleshoot, and debug agent failures, specifically handling API timeouts, context window limits, and JSON parsing errors.
• Database Management: Maintain the PostgreSQL tables.
• Prompt Optimization: Collaborate with the product team to refine system prompts and ensure AI outputs meet strict formatting and quality standards.
• Documentation: Contribute to technical documentation for agent architectures and API connections to maintain knowledge sharing.

Perks & Benefits

• Competitive salary and benefits package.
• 100% Remote work environment.
• Cutting-Edge Tech: Work directly on autonomous AI systems that are integral to client infrastructure.
• Small, Agile Team: Direct access to founders and a culture that encourages creative technical solutions over narrowly scoped tickets.
• Career Growth: Opportunities for financial support for continuous learning and professional development.

About the client:

Our customer is the European online car market, with over 30 million monthly users and a presence in 18 countries. As a Lead FullStack Engineer, you will play a pivotal role in shaping the future of online car markets and enhancing the user experience for millions of car buyers and sellers.
 

Responsibilities:

• Developing fast, high-traffic public-facing websites
• Explore new technologies and help the team to use them
• Work using AI tools and apply them to the SDLC
• Following software development best practices while delivering the work
• Following testing principles while testing your own code to ensure production readiness
• Follow the philosophy of: you-build-it-you-run-it (be responsible for the SDLC processes) 
   

Requirements: 

• 5+ years developing reliable, highly available, and scalable software systems
• Strong understanding of software architecture and design patterns
• Firm grasp of clean code principles and coding standards
• Strong proficiency using AI tooling, such as ChatGPT/Codex, for rapid development
• Experience integrating AI tooling into your development environment for streamlined usage
• Experience with AI Frameworks like Vercel AI SDK, LangChain, etc.
• Strong proficiency with the following technologies: C#+Typescript
• Strong proficiency with SQL & NoSQL datastores (GraphQL, Redis)
• Strong proficiency with frontend development (HTML, CSS, JavaScript)
• Strong proficiency with component-based frameworks and SSR (Next.js/React or Vue.js) or Angular with the desire to learn React/ Vue.js.
• Hands-on experience developing and maintaining 3rd party content management systems
• Knowledge of modern cloud infrastructures and tools, such as AWS, Terraform, and Docker
• Experience with APIs and developing in a service-based application environment
• Experience building optimized UIs for performance
• Proficiency with version control systems such as Git
• Experience working within a formal CI/CD pipeline
• Experience with logging, monitoring, and alerting services like Datadog, Newrelic
• Solid approach to testing and ensuring quality of code, Unit testing, backend, and frontend
• At least Upper-intermediate English level
• This role requires mandatory timezone coverage: work must align with the Toronto (ET) timezone for LATAM hours and 13:00–21:00 EET for EU hours approximately.

The client is an innovative global fintech leader behind USDT, the world’s largest and most widely used stablecoin.

We are looking for a Middleware Engineer to work across the JavaScript/TypeScript layer, connecting modern applications with local AI inference engines and distributed systems. This role sits between product development and platform engineering, focusing on middleware, SDKs, and application layers that make local AI usable, secure, and scalable.

Responsibilities:

• Design, build, and maintain React-based applications (Expo / React Native / Electron)
• Develop clean, modular architectures using TypeScript across the stack
• Implement local-first / offline-first application logic and secure local data storage
• Integrate applications with local AI inference engines, SDKs, and real-time systems
• Work with REST APIs, WebSockets, RPC, and streaming data flows
• Contribute to middleware, SDKs, and JavaScript bindings bridging apps with native and C++ components
• Build or extend native mobile modules (iOS / Android) when required
• Optimize performance for resource-constrained devices
• Write production-quality code with unit and end-to-end tests
• Collaborate in a fully remote, cross-time-zone team

Requirements:
Must have

• 5+ years of experience in fullstack software development
• Expert-level proficiency in JavaScript and TypeScript
• Strong experience with React (web, mobile, or desktop)
• Experience building offline-first or local-storage-heavy applications (e.g. SQLite)
• Proven experience with distributed systems or event-driven architectures
• Strong understanding of real-time communication (WebSockets, streaming, RPC)
• Solid knowledge of networking, security, and production best practices
• Experience with databases, data modeling, and performance optimization
• Hands-on experience with containerization and orchestration (Docker, Kubernetes)
• Ability to work independently and communicate effectively in a remote environment

Nice to Have

• Experience with peer-to-peer technologies (libp2p, Hyperswarm, WebRTC)
• Familiarity with AI/ML inference APIs or OpenAI-compatible endpoints
• Experience integrating crypto or payment SDKs
• Background in AI platforms, SaaS, or developer tooling
• Knowledge of GPU resource management, ML infrastructure, or WebAssembly
• Contributions to open-source projects

We are offering:

• Transparent strategy and thoughtful management that keep everyone aligned
• Space for personal growth and career development without limits
• A culture of continuous learning: internal courses, workshops, and English classes twice a week
• Skill up events where we share experience and stay on top of trends
• Competitive perks: flexible schedule, a strong compensation package, support for professional certifications, and generous vacation policy
• Team spirit that thrives through regular events, gatherings, and celebrations

SaaS Platform · React + Fastify · PostgreSQL

About the Project

We’re building a sophisticated AI-powered matching and analytics platform that uses multi-dimensional profiling and advanced algorithms to optimize decision-making.

The product has a validated prototype and real traction. We’re now moving into production hardening and scale, and we’re looking for a senior developer to take ownership of the backend architecture while actively evolving the frontend.

A core part of this role is working AI-first: we expect you to use Claude Code as a primary development tool, not as an experiment or side-assist.

The Role

You’ll design and implement the full production backend for our React-based SaaS platform, replacing mock data with real infrastructure:

• databases
• authentication
• APIs
• AI integrations
• deployment pipelines

You’ll also contribute directly to the frontend where needed.

Claude Code is a hard requirement.

We expect you to be comfortable (or explicitly motivated) to:

• scaffold systems with AI
• refactor and evolve large codebases using AI assistance
• co-design architecture with Claude
• use AI for documentation, tests, migrations, and reasoning

This is an AI-augmented engineering role, not a traditional “write everything by hand” position.

What You’ll Build

Backend Architecture

• Fastify REST API

  High-performance Node.js framework with TypeScript-first design and built-in validation

• Database

  PostgreSQL 15 with Prisma ORM (type-safe queries + automated migrations)

• Authentication & Authorization

  JWT with refresh tokens, httpOnly cookies, and role-based access control

• Caching Layer

  Redis for sessions and performance optimization

• Validation & Types

  Shared Zod schemas between frontend and backend

• API Design

  RESTful endpoints with structured error handling and consistent responses

Infrastructure & DevOps

• Monorepo Setup

  pnpm workspaces separating frontend, backend, and shared packages

• CI/CD

  GitHub Actions with automated tests, security checks, and deployments

• Environments

  Isolated staging and production environments

• Deployment
  • Frontend: Vercel (CDN + edge)
  • Backend: Railway or Supabase (auto-scaling)

• Containerization

  Docker-based local and production environments

Integrations

• OpenAI API

  Document parsing, analysis, and intelligent matching logic

• Email Services

  Resend or SendGrid with template-driven transactional emails

• File Storage

  Secure uploads via Supabase Storage or AWS S3

• Monitoring & Analytics

  Sentry (errors) and PostHog (product analytics)

Testing & Quality

• Backend Testing

  Vitest for unit and integration tests with test databases

• End-to-End Testing

  Playwright covering full user workflows

• Code Quality

  ESLint, Prettier, Husky pre-commit hooks

• API Documentation

  Auto-generated OpenAPI specs from Zod schemas

Required Experience

• 5+ years of professional full-stack development
• Strong experience or strong willingness to work AI-first
• Hands-on experience with Claude Code for real production work
• Advanced React and modern frontend practices (React 19, hooks, Zustand)
• Node.js backend development (Fastify preferred, Express acceptable)
• PostgreSQL schema design, indexing, and performance optimization
• Prisma ORM or similar type-safe database tooling
• RESTful API design with authentication (JWT, OAuth concepts)
• Git-based workflows and CI/CD pipelines
• Testing across the stack (unit, integration, E2E)

Tech Stack

Frontend (Existing)

• React 19, Vite 7, React Router 7
• Ant Design 6, Zustand 5
• React Flow, Recharts, @dnd-kit
• Vitest, Playwright

Backend (Developing)

• Fastify
• PostgreSQL 15 + Prisma
• Redis
• Zod
• JWT authentication
• Helmet (security)

Infrastructure

• pnpm workspaces (monorepo)
• Docker + docker-compose
• GitHub Actions
• Vercel (frontend)
• Railway / Supabase (backend)

Third-Party APIs

• OpenAI GPT-4 API
• Resend / SendGrid
• Supabase Storage
• Sentry

Highly Desirable

• Deep Fastify experience
• Prisma with complex relational schemas
• Monorepo experience (pnpm, Yarn workspaces, Turborepo)
• Production TypeScript at scale
• Ant Design customization
• Docker for both dev and production
• OpenAI / LLM integration experience
• Vercel and Railway deployments
• Database migration strategies
• Strong opinions on AI-assisted development

Required Skills (Experience Level)

• Node.js (Fastify / Express) — 4+ years
• TypeScript — 4+ years
• PostgreSQL (schema design, indexing, optimization) — 3+ years
• Prisma ORM — 2+ years
• React (hooks, functional components) — 3+ years
• Zustand or similar state management — 1+ year
• REST API design & backend architecture — 4+ years
• Authentication (JWT, refresh tokens, RBAC) — 3+ years
• Docker (local & production workflows) — 2+ years
• CI/CD (GitHub Actions or similar) — 2+ years
• Monorepo workflows (pnpm / yarn workspaces) — 1+ year
• Testing (Vitest / Jest / Playwright) — 2+ years
• OpenAI / LLM API integration — 1+ year
• Claude Code (AI-assisted development workflows) — 1+ year

We are looking for a full-stack that will help us to bring our educational web technology Classtime to the next level. You'll be working with a distributed team (US, Switzerland, and Ukraine). 

Our Product

Classtime enables teachers to create questions on an internet-connected device (mobile phone, tablet, PC/notebook), push it to all student devices and track the performance of a class immediately in a class session. The teacher receives valuable information about the individual student's performance and can intervene as deemed appropriate, thereby improving the overall learning progress of the class. By answering the questions, all students are fully engaged, which can also be analysed after class and even over time to measure a single student's or the entire class's development.

Classtime is trusted by more than 400,000 teachers and various clients (schools / businesses) globally.

Спільнота Classtime в Україні: https://www.facebook.com/groups/classtimeua/

Responsibilities

- Implement new features and user interfaces of the Classtime Apps for students and teachers;

- Architect efficient and reusable front-end systems that drive complex web applications;

- Create APIs and implement business logic in micro-services;

- Collaborate with Product and Graphic Designers to deliver compelling user-facing products;

- Manage your own time, and work well both independently and as part of our SCRUM team;

- Launch, iterate and make a difference. Provide full-stack coding expertise, and be ready to make Classtime better for our users;

Must-Haves

Experience with React, Redux, OOP;

1+ years of JavaScript or Typescript experience and strong knowledge of ES6 or Typescript;

1+ years of backend development;

Nice to have

- Experience programming in Typescript.

- Experience programming in Python, Java and Kotlin;

- Experience in building responsive mobile-first web application;

- Strong sense of web design and fundamentals of user experience;

- Experience with implementing micro-services;

Classtime's Stack

- React, Redux, Redux Saga, TypeScript;

- HTML, SCSS, JSS;

- Webpack;

- Kotlin, Microservices, Django;

- Deployed on the Google Kubernetes Engine;

- Third-parties: Pusher, Cloudinary, Elastic Search;

Compensation & Location

Market-oriented salary. Remote office. We have several teammates in Kyiv. You must currently live in Ukraine.

Classtime Values

Curiosity - Always continue to experiment and learn.

We have to focus on our client, the teacher. We question critically, we listen carefully and experiment creatively with new ideas. If you love to understand the unknown, then continue, because you now know 25% of our values.

Impact - Always focus on generating value for society.

We don't pride ourselves with large employee numbers, but rather with exceptional impact per team member. We expect exceptional ownership and responsibility, not only for your tasks, but for our impact on society. Don't go improve the next ad platform, help us in our attempt to shape the future of education. If you can throw a punch with impact, then use both fists, not only 50%.

Perseverance - Always keep pushing yourself.

We are a distributed team, working across several time zones. Just like us, you can live in Los Angeles, Kyiv, Zurich, or anywhere you want. Our home has many names: Google Drive, Google Hangouts, Github, InVision, Slack, etc. We don't excel through pressure, but through alignment and discipline. We don't require you to run with us forever, but don't expect a half-marathon either. Just keep in mind: pain is inevitable, suffering is not. Persevere. You're already at 75%.

Honor - Act with integrity, always help a friend or rival.

Education is not a battle against each other, but for each other. Technology is already having a great impact on education. Why do we care? Because we believe that creative, curious people will honor future generations and learn to solve the world's biggest challenges for the long-term. This is what Classtime is all about – and we will relentlessly strive for our goals and keep pushing the frontiers of education. With our friends and “co-opetition”. This is 100% Classtime.

Get in touch with us now, let's talk!

Interview Process

1. Pre-assessment - Show that  you know the basics.
2. Technical Interview - Your opportunity to demonstrate your skills!
3. Personal Interview - Let's see if you are a good fit to the company.

This is NOT a traditional developer role.
We’re not looking for someone who writes code all day — we’re looking for someone who leads AI agents that write code for you.

This is not “a regular dev job with an AI assistant”.
This is a role for a person who thinks in systems, prompts, and outcomes, not in endless manual coding.

About us

We are a group of companies with 30+ active projects across travel, fintech, mobile apps, and AI products.
We build products through AI agents, and we’re looking for someone who knows how to work with them effectively.

Tech stack:

• Frontend: Next.js, React Native
• Backend / Infra: Vercel, Firebase, Cloudflare

What you’ll do

• Translate product and technical ideas into clear tasks for AI agents
• Guide AI agents to produce production-ready code
• Review, refine, and improve AI-generated code
• Choose the right models and tools for each task
• Push features all the way to production

In short: you manage an AI-powered dev team that writes code for you.

What we’re looking for

• 1+ year of web development experience
• 3+ months of hands-on work with AI coding tools
• Experience working with AI agents (not just autocomplete)
• Ability to read code and do code reviews
• Solid understanding of frontend, backend, and APIs
• Advanced English

Nice to have

• Built projects mostly or fully using AI
• Know how to optimize AI usage for cost and limits
• Actively follow new models and AI dev tools
• Experience with mobile development

What we offer

• 🏢 Office-based role in Warsaw
• 🤖 Unlimited access to top-tier AI models
• 🎯 Direct collaboration with the CTO — no bureaucracy

How to apply

Please include:

• Examples of projects you built using AI
• Your AI setup: tools you use and how you handle limits and costs
• If you’ve only worked with Cursor — what doesn’t work for you in it?

🚀 If you want to build fast, experiment, and shape how products are created with AI — we’d love to hear from you.

• Project Description:

  Join a team that's redefining banking technology!
  
  Our client isn't a typical Swiss bank — it's a modern financial institution focused on delivering cutting-edge online trading and financial services. Unlike traditional banks weighed down by legacy systems, their tech stack is lean and innovative.
  
  The team builds products that transform complex, fragmented risk data into clear, actionable insights, enabling smarter and faster decisions to reduce risk. We focus on core business areas such as account risk and work closely with key stakeholders - Risk department, Compliance department, and the Middle Office Fraud Center — to deliver impactful solutions.
  
  You'll be part of a Scrum team of four, collaborating daily with stakeholders through stand-ups, status updates, and Agile ceremonies. We embrace best practices and modern communication tools: Zoom, Teams, Outlook, JIRA, Confluence, and more.
  
  We continuously evolve our solutions to atomic microservices and self-contained systems, based on dockerized environments with CI and CD.
  
  What we offer:
  Professional Growth: access to local trainings, on-demand webinars, interactive workshops, and support for conferences and certifications.
  
  Competitive Compensation: Regular annual reviews based on your performance and professional development.
  
  Work-Life Balance & Fun: Team-building activities, corporate events, hackathons, and a variety of engaging initiatives.
  
  If you're proactive, creative, and ready for new challenges, join us! Together, we'll enhance product quality and optimize processes while driving innovation.

• Responsibilities:

  - Overall responsibility for a team, its performance
  - Driving the Scrum processes, coaching the team, driving improvements
  - Contributing towards the technical direction of the products by being involved in technical design and delivery of components
  - Identifying potential risks and escalating to the manager and client
  - Communicating and interacting effectively with other Team Leads
  - Participation in meetings with the client (Stand Ups, Grooming, Planning, Demo, Retro, and other ad-hoc ones)
  - Requirements refinement, Sprint planning, and task estimation
  - Application development
  - Developing unit/integration tests, E2E, ensuring good development testing coverage
  - Lead a team of 3 developers
  - Participate in peer design and code reviews
  - Evaluate and adopt new development tools, libraries, and approaches to improve delivery quality

• Mandatory Skills Description:

  - 1+ year in Team Lead position [fresh experience during last 2 years]
  - At least 5+ years of proven experience in a Software Developer position
  - Java core, Java 11-17+ features
  - OOP/OOD knowledge, design patterns
  - HTML, CSS, JavaScript
  - Proven knowledge of ReactJS, Redux [2+ fresh years of proven experience]
  - Unit testing frameworks (JUnit, Mockito, etc.), experience of integration and E2E tests building
  - Spring framework, IOC
  - RESTfull services
  - Java-based application servers (e.g. Tomcat)
  - SQL knowledge, any RDBMS, Oracle/PostgreSQL is a plus
  - ORM, Hibernate in particular
  - CI tools experience (Jenkins)
  - Docker

• Nice-to-Have Skills Description:

  - Education: Bachelor's / Master's degree in computer science or computer engineering
  - Experience in finance/banking business domain
  - Unix usage experience
  - Kafka
  - Java 17+
  - WebSocket
  - TypeScript

• Languages:
  • English: B2 Upper Intermediate
  • Ukrainian: C2 Proficient

3Shape develops 3D scanners and software solutions that enable dental and hearing professionals to treat more people, more effectively. Our products are market leading innovative solutions that make a real difference in the lives of both patients and dental professionals around the world.

3Shape is headquartered in Copenhagen, with development teams in Denmark, Ukraine, North Macedonia and with a production site in Poland.

We are a global company with presence in Europe, Asia and the Americas. Founded in a year 2000, today, we provide services to customers in over 130 countries. Our growing talent pool of over 2200 employees spans 50 nationalities.

3Shape as an employer is committed to Ukraine. Our UA office was founded in 2006, and we are continuing to grow, hire and take care of our employees even during the war in Ukraine. Among other actions, we support our contractors who are called to the military service, as well as care about our colleagues’ mental health by implementing different activities.


About the role:

Unite Cloud is a cloud-native platform, fully built, deployed, and operated in Microsoft Azure.
Cloud is not an extension of the system — it is the core and only runtime environment for all services.
From a technical perspective, the project uses ASP.NET Core with microservices architecture on the backend, Angular with Material UI on the front end, and Azure with GitHub Actions for CI/CD and deployment.
The project is under active development, and you will continuously work on new functionality and improvements. At 3Shape, software development is carried out by self-organizing agile teams using Scrum as the primary development methodology.

Areas of responsibility:

• Develop and maintain backend services using .NET
• Ensure high code quality through code reviews, refactoring, and adherence to best practices
• Design and integrate RESTful APIs between the frontend and backend
• Operate, debug, and maintain cloud-based systems running in Azure
• Work with Azure as the primary and only runtime environment
• Contribute to Infrastructure-as-Code solutions (we use Pulumi)
• Implement and evolve frontend functionality using Angular
• Improve system maintainability by designing and implementing automated tests
• Participate in CI/CD pipelines and deployment workflows using GitHub Actions
• Collaborate closely with team members across locations and disciplines
   

Your profile:

• 4+ years of professional software development experience
• Solid experience with .NET / ASP.NET Core
• Hands-on experience with frontend development (Angular or similar SPA frameworks)
• Experience building and maintaining microservice-based systems
• Experience working in cloud-native environments
• Strong hands-on experience with Microsoft Azure

Would be a plus:

• Background in GitHub Actions
• Experience in writing tests using nUnit, Moq and SpecFlow
• Experience in building Infrastructure-As-Code (Pulumi, Terraform)
• In-depth knowledge of Kubernetes
• Experience of Agile development and continuous integration tools
   

Being part of us means:

• Meaningful work that helps to change the future of dentistry
• Work in a unique professional, friendly and supportive environment
• Constant professional growth and development
• A healthy work-life balance
• Comprehensive benefits incl. 24 working days of annual vacation; medical insurance; paid sick leaves and child sick leaves; maternity and paternity leaves etc
• Breakfasts and lunches in the office
• Good working conditions in a comfortable office in UNIT.City
• A parking lot with free spaces for employees
• Occasional business trips to Western Europe
• Opportunity to become a part of the success that 3Shape has created over the past 25 years.

We are looking for several Full-Stack Developers to join our product team.

You will work on both frontend and backend parts of the platform, collaborate closely with the product and engineering teams, and help scale a high-load production system.

Tech stack:
– TypeScript (must-have)
– React
– React Native
– AWS
– PostgreSQL

Candidates may be stronger in some technologies than others, but must have real full-stack experience with both frontend and backend.
 

About the client:

Our customer is the European online car market, with over 30 million monthly users and a presence in 18 countries. As a Lead FullStack Engineer, you will play a pivotal role in shaping the future of online car markets and enhancing the user experience for millions of car buyers and sellers.

Responsibilities:

• Developing fast, high-traffic public-facing websites
• Explore new technologies and help the team to use them
• Work using AI tools and apply them to the SDLC
• Following software development best practices while delivering the work
• Following testing principles while testing your own code to ensure production readiness
• Follow the philosophy of: you-build-it-you-run-it (be responsible for the SDLC processes) 

Requirements: 

• 5+ years developing reliable, highly available, and scalable software systems
• Strong understanding of software architecture and design patterns
• Firm grasp of clean code principles and coding standards
• Strong proficiency using AI tooling, such as ChatGPT/Codex, for rapid development
• Experience integrating AI tooling into your development environment for streamlined usage
• Experience with AI Frameworks like Vercel AI SDK, LangChain, etc.
• Strong proficiency with backend development with the following technologies C#+Typescript
• Strong proficiency with SQL & NoSQL datastores (GraphQL, Redis)
• Strong proficiency with frontend development (HTML, CSS, JavaScript)
• Strong proficiency with component-based frameworks and SSR (Next.js/React or Vue.js) or Angular with the desire to learn React/ Vue.js.
• Hands-on experience developing and maintaining 3rd party content management systems
• Knowledge of modern cloud infrastructures and tools, such as AWS, Terraform, and Docker
• Experience with APIs and developing in a service-based application environment
• Experience building optimized UIs for performance
• Proficiency with version control systems such as Git
• Experience working within a formal CI/CD pipeline
• Experience with logging, monitoring, and alerting services like Datadog, Newrelic
• Solid approach to testing and ensuring quality of code, Unit testing, backend, and frontend
• At least Upper-intermediate English level
• This role requires mandatory timezone coverage: work must align with the Toronto (ET) timezone for LATAM hours and 13:00–21:00 EET for EU hours approximately.

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Personalized career growth
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Education reimbursement
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers

Project Overview:

We are seeking a Senior Backend Engineer with deep expertise in PHP and strong proficiency in Node.js to help modernize and scale our backend systems. This role is central to evolving a large PHP monolith into modular, service-oriented components while maintaining high standards for code quality, testing, and reliability.

You’ll work in a remote-first, globally distributed environment, collaborating closely with product, platform, and engineering teams. Strong technical ownership, communication, and architectural thinking are essential.
 

Customer Overview:

USA influencer marketing platform for organizations looking to advance their creator marketing. Its enterprise-grade technology and industry-leading intelligence facilitate scaled creator discovery, streamlined workflows, and robust reporting, while ensuring compliance and brand safety.
 

Responsibilities:

• Develop a deep understanding of an existing PHP monolithic codebase and progressively extract modular services
• Design and implement scalable, testable, and reusable backend services
• Write clean, maintainable PHP and Node.js server-side code
• Design and maintain robust RESTful and GraphQL APIs
• Lead refactoring efforts to improve performance, readability, and long-term maintainability
• Build, deploy, and operate services on AWS (Lambda, API Gateway, and related services)
• Write and maintain unit and integration tests
• Review, validate, and improve code generated with AI tools—never blindly accept AI output
• Identify technical risks, bottlenecks, and opportunities for improvement
• Clearly communicate technical decisions, trade-offs, and solutions in written and spoken English
• Create short video walkthroughs or demos explaining architecture changes or completed work
• Collaborate effectively in a remote, async-first cross-timezone team with flexible working hours

Skills/Requirements:

• Expert-level PHP (Laravel) experience (non-negotiable)
• Strong backend experience with Node.js
• Proven experience working on enterprise-grade, production systems
• Hands-on experience refactoring or decomposing monolithic architectures
• Strong background in API design and backend architecture
• Experience with AWS, especially Lambda and serverless patterns
• Solid understanding of software design principles, patterns, and clean code practices
• Experience writing testable code and maintaining automated test suites
• Fluency in English (written and spoken)
• Excellent problem-solving, debugging, and communication skills
• Highly proactive and self-directed; able to unblock yourself without waiting for instructions

AI & Developer Tooling Expectations

• You are expected to use AI as a productivity multiplier, not a replacement for engineering judgment.
• Experience with AI coding tools (e.g., GitHub Copilot, ChatGPT, Claude Code, Cursor)
• Using AI within IDEs such as VS Code or PhpStorm
• Critically reviewing, testing, and refining AI-generated code
• Understanding risks, edge cases, and limitations of AI-assisted development

The Opportunity

!!! Please read: fluent English and relevant experience are a must; no shortcuts possible !!!

Max Facilitation is proud to partner with a market-leading European scale-up that is fundamentally redefining how modern enterprises manage their distributed workforces. Recognized recently as one of the Top 10 Startups in the Benelux region, our client provides an automated SaaS ecosystem that handles the complex lifecycle of IT infrastructure—from deployment to retrieval—across 100+ countries.

Your Mission

As a Senior Full Stack Engineer, you won't just be writing tickets; you’ll be an architectural cornerstone. You will join a multidisciplinary product team focused on building a "best-in-class" user experience. You will be responsible for:

• Architectural Evolution: Making high-level decisions to ensure the platform scales gracefully during this hyper-growth phase.
• End-to-End Ownership: Designing and implementing reusable APIs (Laravel) and sophisticated frontend components (React).
• Technical Leadership: Leading project initiatives and coordinating small pods of engineers (3+) to deliver complex features.
• Mentorship: Elevating the craft of the engineering team through code reviews, pair programming, and knowledge sharing.

The Tech Stack

• Backend: PHP 8 / Laravel
• Frontend: React.js / TypeScript
• Database: MySQL 8
• Infrastructure: Docker, Kubernetes, CI/CD pipelines
• Methodology: Strong emphasis on TDD

What You Bring to the Table

We are looking for a "product-first" engineer who understands that elegant code is a means to solving real-world customer problems.

• Experience: Approximately 6+ years of professional software development experience, with deep expertise in the Laravel and React ecosystems.
• Leadership Track Record: Proven ability to lead technical projects and guide the professional growth of mid-level peers.
• Product Mindset: You’ve worked in product-led environments and understand the balance between "perfect" code and "time-to-market."
• Communication: Fluent in English with the ability to articulate complex technical concepts to non-technical stakeholders or even join customer calls when a senior perspective is needed.
• Mindset: proactive, everything-is-possible attitude. You enjoy the dynamic, fast-paced nature of a scale-up environment.

About us:

ARRISE sets the benchmark for service delivery and excellence in the iGaming industry. Playing a key role in the success of its clients, which include Pragmatic Play, a brand relied upon by the world’s biggest online casinos for its cutting-edge products, ARRISE helps to deliver exceptional gaming experiences to millions of players worldwide.

Our global team of talented and driven professionals are shaping the future of iGaming. Headquartered in Gibraltar, we have offices spanning Canada, India, the Isle of Man, Latvia, Malta, Romania, Serbia, Bulgaria, and the UAE, and more exciting destinations on the horizon.

At ARRISE, we take pride in creating growth opportunities at all levels, constantly investing in our people while welcoming new colleagues and forging strategic partnerships that open new opportunities for success. 

To achieve this, we bet on ourselves. We know that success is a collective effort, and our team is driven by ambition, collaboration, and a shared commitment to grow and succeed—while embracing every step of the journey.

Be part of the future of iGaming with ARRISERS! See a job that excites you? Apply now, and our friendly recruitment team will connect with you soon. Your journey starts here!
 

Required skills:

· 5+ years of Java development.

· Strong programming skills with Java.

· Experience with OOP/OOD.

· Experience with clustered applications, pooling, connection management, transactions.

· Familiarity with programming specifics like asynchronous I/O, concurrency, distributed web systems and regression.

· A good foundation in algorithms, design patterns, and data structures.

· Experience with unit/functional testing.

· Strong experience with the most of Spring Framework/JDBC, databases (PostgreSQL).

· Strong experience with Javascript and React Framework.

· Maven, Git.

· Strong understanding of RDBMS concepts + SQL.
 

Will be a plus:

· Familiarity with NoSQL databases like Redis.

· Experience with Kubernetes and Nomad.

· Experience with AWS services.

· Experience with Oracle databases.

· Experience with distributed messaging systems, particularly RabbitMQ.

· Experience in application and infrastructure monitoring.

· Proven ability to troubleshoot production problems related to software applications.

· Exposure to high-load systems.

· Good spoken and written English skills.

Company offers:

· Long-term employment.

· Flexible timetable.

· Comfortable working conditions.

· Paid vacation and sick leaves.

· English lessons, gym.

· Competitive salary level.

We are seeking a Fullstack Software Developer to join our expanding team. If you’re passionate about building user-friendly web interfaces, have hands-on experience with them, and want to broaden your software skills,  we’d love to meet you!

What You’ll Do:

• Play a key role in developing and supporting custom SaaS applications
• Create and expand Backend (server & database architectures)
• Mentor and code review other software developers in the team
• Build web applications from scratch, ensuring a responsive, modern design
• Collaborate with designers and other developers

• Explore and integrate modern technologies and best practices

   

Requirements:

Hard Skills:

• 3+ years of commercial experience with React JS (or any other similar JS frameworks like Vue or Angular)
• Solid knowledge of Typescript
• Strong knowledge of the NodeJS environment
• Experience with PostgreSQL, MongoDB, or other relational/non-relational databases
• Familiar with cross-browser compatibility practices and building responsive layouts
• Strong experience with Git and version control workflows
• Familiarity with build tools like Vite, Webpack, etc.
• Understanding RestAPI
• ORM (TypeORM / Prisma / mongoose)

Soft Skills:

• Intermediate level of technical English (reading and writing)
• Eagerness to learn and adopt new tools and practices
• Strong team player: collaborative, communicative, and supportive
• Proactive mindset with a focus on quality and usability

Nice to Have:

• Expertise with cloud platforms such as AWS/GCP
• Understanding of database optimization techniques
• Experience working with WordPress
• Knowledge of any CSS methodology (e.g., BEM, SMACSS)
• Experience with CSS preprocessors
• Familiarity with Figma or similar design tools

What We Offer:

• A comfortable hybrid office for on-site teammates  
• 8-hour workday with flexible hours
• Paid vacation and sick leave
• Unlimited unpaid leave policy
• Friendly and expert-level team environment
• Opportunities for professional growth and tech exploration

Please write Umova at the beginning of your application to know that you have read to this point. Feel free to contact!

About Us

We're building a B2B sales intelligence platform for international trade. Our software helps companies discover new buyers and suppliers worldwide and connect with the right decision-makers.

Most businesses struggle to find reliable partners abroad. We're making global trade accessible to everyone, not just large corporations with dedicated export sales / procurement teams.

We're a young and growing company with active clients using our platform daily. Our team is lean, 2 founders, a strong team of advisors, a lead developer, and we're looking for a full-stack developer and other roles to join us and help build the next biggest trade market intelligence platform in the world.

Role Description

We're looking for a freelance full-stack developer with a strong backend focus. You'll ship new features, solve real problems, and help shape the technical foundations of a product that's growing.

Today, one the founder handles the product and works with one technical lead. You'd be the second person on the tech side, a structuring role with real impact and direct input on key decisions.

You'll have full ownership of your work, from idea to production. That means making technical decisions yourself, validating your own features, and shipping with confidence. You won't be alone, you'll work closely with the technical lead and get support on architecture and complex decisions. But you'll still own your deliverables.

You will:

• Debug and resolve production issues (performance bottlenecks, race conditions, data inconsistencies)
• Add test coverage + CI/CD pipeline
• Implement performance fixes (pagination, caching)
• Set up monitoring
• Secure & optimize API routes (validation, rate limiting, error handling)
• Improve background jobs & webhooks reliability (Inngest)
• Harden authentication & authorization flows (Clerk + Next.js middleware, RBAC, secure sessions)
• Optimize Supabase/PostgreSQL & ClickHouse queries and data model for high-volume data (billions of rows)
• Ensure secure, robust usage of Next.js 15 Server Actions & API routes

Team & Working Environment

You'll join a very small team with few formal processes and a product that's still early-stage. This means strong autonomy and individual responsibility. You'll own problems end-to-end, make technical trade-offs on your own, and validate your work before shipping.

Day-to-day, you'll be working on a product that's already in production, used by real clients. That means debugging real incidents, making technical trade-offs without detailed specs, and iterating fast: ship, observe, improve. We have two daily syncs, one in the morning to align, one at end of day to review progress

Tech Stack

• Next.js 15 (API Routes, Server Actions, React)
• PostgreSQL + Supabase + ClickHouse
• Vercel, Inngest, Clerk
• TypeScript

Must Have

• 2+ years Node.js/TypeScript backend experience
• 2+ years building production systems with Next.js
• Strong PostgreSQL experience (transactions, performance, indexing, connection pooling)
• REST API design & security (auth, input validation, rate limiting)
• Experience stabilizing and refactoring existing codebases, not just greenfield
• Comfortable working across backend and the Next.js app layer

What are you looking for in a hire?

• Curious & Growth-Oriented: You stay up to date with new tools and frameworks, and actively seek opportunities to expand your skills
• Resourceful Problem-Solver: You take initiative when facing blockers and find solutions independently
• Strong Ownership Mindset: You care deeply about the end-user experience and aren't afraid to challenge decisions to improve the product
• Execution-Focused: You prioritize shipping and iterating over perfection
• Proactive Communicator: You keep the team informed, articulate ideas clearly, and ask for help when needed

Why Working With Us?

• Real impact from day one: your code ships to production and is used by real clients immediately
• Learn fast: work directly with the founders on a product that's growing and evolving rapidly
• Ownership: you won't execute tickets, you'll own problems and solve them
• Early-stage opportunity: join at 6 months in, grow with the company as we scale
• Autonomy: you're trusted to make decisions and work independently, with guidance on priorities and people around to help when needed

• Contract: Freelance, with opportunity to convert to CDI (Contrat à Durée Indéterminée)
• Compensation: €2,500–3,500/month
• Location: On-site in Paris preferred, open to full remote for other European locations
• Engagement: Full-time