full stack developer for a cloud product line

Linear Software GmbH provides club administration and accounting software for clubs, associations, and schools. Following its acquisition by CHAPTERS Group AG in 2025, the company is modernizing its core systems into a cloud product line and adding agent-based AI features such as a chatbot, copilot, and MCP.

• Design and implement performant features using Next.js, React, JavaScript/TypeScript, PostgreSQL, and LangGraph;
• Build modern, responsive, highly interactive user interfaces;
• Design, optimize, and connect SQL databases;
• Develop and integrate seamless, secure APIs for the cloud architecture.

• Extensive knowledge of the Next.js ecosystem and strong skills in clean web implementation and performance;
• End-to-end skills spanning interactive UI development and SQL database management;
• Routine use of AI-assisted development tools such as Cursor, Claude Code, and GitHub Copilot;
• Fluent German;
• Valid work authorization for Germany;
• Nice to have: practical experience with LLM orchestration frameworks such as LangGraph or LangChain, basic accounting knowledge.

• Flexible choice of development setup and coding agents;
• Flexible working hours;
• Urban Sports Club membership subsidy;
• Freelance engagement.