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Full-Stack Middle Developer (Node.js)

Poland · Job Posted April 23, 2026
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Job Description

We’re looking for a talented and driven Full-Stack Developer ready to take ownership of technical solutions across both frontend and backend. This is a great opportunity to work with a modern JavaScript/TypeScript stack, contribute to cloud-native products, and grow in a supportive and growth-oriented environment.

Job Responsibility

  • Design and implement new features across the stack using React, Node.js, and AWS services
  • Maintain and improve existing codebase with a focus on performance and scalability
  • Participate in code reviews, pair programming, and continuous improvement practices
  • Write and maintain unit and integration tests to ensure software reliability
  • Collaborate with cross-functional teams including QA, DevOps, and Product Management
  • Contribute to system design discussions and take initiative in problem-solving
  • Ensure code quality and maintainable architecture through best development practices

Requirements

  • 4+ years of commercial experience in software development
  • Proficiency in JavaScript/TypeScript
  • Hands-on experience with React (Zustand or Context API and Saga middleware)
  • Backend development with Node.js (Fastify / Serverless Framework)
  • Experience in writing automated tests (Jest, Enzyme, React Testing Library)
  • Familiarity with AWS services (Lambda, EC2, S3)
  • Experience working with PostgreSQL / MySQL
  • Solid understanding of RESTful API design, modular architecture, and asynchronous workflows
  • Proficient with Git for version control
  • English level B2 or higher

Nice to have

  • Experience using CI/CD tools like Github actions or AWS Code Pipelines
  • Familiarity with Docker and containerization concepts
  • Background or working knowledge in .NET / Python/ Snowflake
  • Experience with Fintech / Stock Trading projects

What we offer

  • Projects for such clients as PayPal, Wargaming, Xerox, Philips, Adidas and Toyota
  • Competitive compensation that depends on your qualification and skills
  • Career development system with clear skill qualifications
  • Flexible working hours aligned to your schedule
  • Options to work remotely
  • Corporate medical insurance covering services of private and public medical centers
  • English courses online
  • Corporate parties and events for employees and their children
  • Internal conferences, workshops and meetups for learning and experience sharing
  • Gym membership compensation
  • 5 days of paid sick leave per year with no obligation to submit a sick-leave certificate
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