Senior Full Stack Entwickler/in (100% Remote)

We develop Shopify apps for over 3,500 Shopify merchants. We are looking for you as a Senior Full Stack Developer with a deep technical understanding, a knack for clean code, and a passion for performant, scalable e-commerce solutions.

• 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)
• Connecting 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 and technical documentation
• Close collaboration with design, product, and QA to build products from the ground up
• Mentoring junior developers and actively shaping our technical roadmap

• At least 5 years of experience in full-stack development
• Very good knowledge of JavaScript, TypeScript, React, Next.js, Node.js, and Express
• Solid knowledge in handling databases (MongoDB, PostgreSQL, or MySQL)
• Routine in 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 GraphQL API
• Independent, structured, and solution-oriented work style
• Enjoyment in teamwork, technical exchange, and responsibility
• Structured, independent working style with clear pipeline logic
• German at native level + good English in speaking and writing

• Maximum ownership and trust
• 30 days of vacation + birthday & Christmas off
• Motivated team & high-performance environment
• Flat hierarchies with short decision-making paths
• 100% remote, office in Mannheim possible
• Team events & offsites
• Best Apple hardware