Planning, architecture and development of Shopify apps, plugins and API integrations
Full-stack development using modern technologies in the frontend (React, Next.js) and backend (Node.js, Express, TypeScript)
Integration of third-party systems (ERP, payment, CRM, logistics, etc.) via REST and GraphQL interfaces
Ensuring performance, code quality and scalability
Implementation of responsive and accessible UI components
Conducting code reviews, testing (unit, integration, end-to-end) and debugging
Building and maintaining CI/CD pipelines and technical documentation

At least 5 years of experience in full-stack development
Strong knowledge of JavaScript, TypeScript, React, Next.js, Node.js and Express
Solid experience with databases (MongoDB, PostgreSQL, or MySQL)
Proficiency with Git, CI/CD, Docker and modern DevOps workflows
Understanding of UX/UI, API design, security (OAuth, JWT, CORS) and performance optimization
(Optional) Experience with Shopify app development, including Polaris, webhooks, OAuth and the GraphQL API
Independent, structured and solution-oriented working style
Enjoys teamwork, technical collaboration and taking responsibility
Organized, self-driven approach with clear pipeline logic
German at native level + good spoken and written English

Full Stack Developer

Key skills