Senior Full Stack Developer (React / Node.js)

Candidates must be located in Poland.

We're looking for an experienced Full Stack Developer to join a team building modern web applications. This role combines frontend and backend development, with a strong focus on code quality, scalability, and engineering best practices.

Responsibilities

• Design, develop, and maintain full stack web applications.
• Build modern UIs using React and Chakra UI.
• Develop backend services with Node.js, Fastify, and NestJS.
• Design and implement REST APIs.
• Collaborate with Product, UX/UI, and QA teams.
• Participate in code reviews and contribute to engineering standards.
• Support CI/CD processes and software delivery.

Requirements

• Commercial experience as a Full Stack Developer (minimum 7 years of experience).
• Strong knowledge of TypeScript, JavaScript, HTML5, CSS3, Sass, React, Chakra UI, Node.js, and Fastify and/or NestJS.
• Experience designing and consuming REST APIs.
• Good understanding of relational databases, SQL, and ORM tools.
• Hands-on experience with Git, code reviews, and Agile/Scrum methodologies.
• Knowledge of software engineering best practices, design patterns, data structures, and algorithms.
• Experience with CI/CD pipelines.

Nice to Have

• Experience with AI tools, including Claude Code and AWS Bedrock.
• Docker, Kubernetes, Jenkins, or ArgoCD.
• PostgreSQL, MySQL, or MariaDB.
• OIDC / SSO authentication.
• Python and basic Linux knowledge.
• Active GitHub profile or technical portfolio.

Our Offer

• Medicover private healthcare.
• Multisport card.
• Group life insurance.