Full-Stack Developer Next.js (m/w/d) at Linear Service GmbH | BE, DE | Rezi

Full-Stack Developer Next.js (m/w/d) at Linear Service GmbH

Full-Stack Developer Next.js (m/w/d)

Linear Service GmbH · BE, DE

Today

Full-Stack Developer Next.js (m/w/d)

Linear Service GmbH · BE, DE

13 hours ago
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About the Role

We are modernizing our core systems into a new cloud product line and expanding the platform with agent-based AI features. You will help build this new cloud product line, working closely with the CTO from the user interface to the database layer.

Responsibilities

  • Conception and implementation of performant features with Next.js (React, JavaScript/TypeScript, PostgreSQL, LangGraph).
  • Implementation of modern, responsive, and highly interactive user interfaces.
  • Design, optimization, and connection of SQL databases.
  • Development and integration of seamless, secure APIs for our cloud architecture.

Requirements

  • Mastery of the Next.js ecosystem with an excellent eye for clean web implementation and performance (JavaScript, React, Next.js, SQL, git).
  • Full-stack skillset covering interactive UI to solid database management (SQL).
  • Proficient programming with AI-assisted tools (e.g., Cursor, Claude Code, GitHub Copilot).
  • Fluent German language skills.
  • Valid work permit for Germany.

Skills

  • Next.js
  • React
  • JavaScript
  • TypeScript
  • PostgreSQL
  • LangGraph
  • SQL
  • git
  • AI-assisted tools
  • LangChain

Location

  • Remote

Work Type

  • Freelance
  • Remote
  • Full-time

Experience Level

  • Senior-level

Benefits

  • Full freedom in choosing your development setup and preferred coding agents.
  • Opportunity to build the future of our cloud product from the ground up.
  • 100% remote capability.
  • Flexible working hours.
  • Subsidized membership with Urban Sports Club.

About the Company

  • Linear Software GmbH has a 35-year history in club management and accounting for clubs, associations, and schools.
  • Acquired by CHAPTERS Group AG in 2025, the company is undergoing modernization for a future focused on agent-based systems.
  • Core systems are being migrated to a new, modern cloud product line.