Planning, architecture and development of Shopify apps, plugins and API integrations
Full-stack development with 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, E2E) and debugging
Building and maintaining CI/CD pipelines as well as technical documentation
Close collaboration with design, product and QA teams to build products from the ground up
Mentoring junior developers and actively contributing to our technical roadmap

At least 5 years of experience in full-stack development
Strong proficiency in JavaScript, TypeScript, React, Next.js, Node.js and Express
Solid knowledge of working with databases (MongoDB, PostgreSQL or MySQL)
Experience working 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 exchange and responsibility
Structured, autonomous working style with clear pipeline logic
German at native level + good English, written and spoken

Senior Full-Stack Developer, Full-time

Key skills