Job
- Level
- Junior
- Location
- Berlin
- Working Model
- Full Remote, Onsite
- Job Field
- Web, Full Stack
- Employment Type
- Full Time
- Contract Type
- Permanent employment
Job Summary
In this role, you will develop new features for our Next.js cloud platform, work with AI coding agents, and build frontend and backend components while receiving continuous mentoring.
Job Technologies
Your role in the team
- Feature Development: Implementation of clearly defined features in our new Next.js cloud platform (React, TypeScript, PostgreSQL) - with mentoring, increasing responsibility, and code reviews by the CTO.
- AI-First Development: You work daily with coding agents (Claude Code, Cursor, GitHub Copilot, or similar), master planning, delegation, and review of agent-generated code, and help us further improve our AI development workflows.
- Agent Orchestration: Contributing to our AI features - Tool integrations via MCP, Agent flows with LangGraph, prompt design, Evals, and guardrails for chatbot and copilot.
- Build modern, responsive user interfaces with React/Next.js.
- Backend fundamentals: Implement API endpoints and database queries while gradually building full-stack competence.
- Quality & Documentation: Write tests, document features - in a way that AI agents can also work with them.
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Our expectations of you
Education
- Background: Completed degree (Computer Science or similar), training as an IT specialist, or a career changer with a demonstrable portfolio.
Qualifications
- AI-First Mindset (Must): You are already programming with AI-assisted tools (Cursor, Claude Code, Copilot, etc.) and can demonstrate what you have built with them.
- Willingness to orchestrate agents (must): You want to understand how LLM agents work - tool calling, MCP, LangGraph/LangChain, prompting, evaluation - and ideally have already built your own small agents, chatbots, or MCP servers.
- Learning curve: High self-initiative, quick onboarding, enjoyment in learning from reviews and mistakes.
- Language & Legal: Fluent German skills and a valid work permit for Germany.
Experience
- Tech Stack: Solid foundation in JavaScript/TypeScript and initial practical experience with React and Next.js - from internships, working student jobs, bootcamps, or personal projects. SQL and git are well understood.
- Nice-to-have: PostgreSQL, Next.js App Router, experience with LangGraph/LangChain in a personal project, open-source contributions, basic knowledge of accounting or club management.
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What we offer
- Mentoring: Direct collaboration with the CTO, regular code reviews, steep learning curve.
- Creative freedom: Complete flexibility in choosing your development setup and your preferred coding agents.
- Real Greenfield: No legacy issues - you are building a new cloud product from scratch.
- 100% flexibility: Fully remote-capable, flexible working hours; office in Berlin Mitte if you like.
- Mobility: Germany Ticket will be covered.
- Development: Further training and exchange with more than 60 other software companies of the CHAPTERS Group.
- Sports & Health: Subsidized membership through the Urban Sports Club.
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Topics You Will Work On
Job Locations
About Your Employer
Linear Service GmbH
Linear Service GmbH offers tailored software solutions that are aligned with the needs of clubs, associations, schools, and educational institutions. Through a flexible and customizable approach, the company facilitates the management of organizational and commercial processes. Since its founding in 1990, Linear Service has established itself as an independent software manufacturer in Germany.
Description
- Company Type
- Established Company
- Working Model
- Full Remote, Onsite
- Industry
- Internet, IT, Telecommunication
Junior Full-Stack Developer
- Location
- Berlin
- Working Model
- Full Remote, Onsite
- Diversity
- Open for all genders
