Senior Fullstack Developer – with project experience

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RockstarDevelopers GmbH

WebsiteLinkedInAll Job Openings

11 - 50 employees

Founded 2013

🏢 Enterprise

🤖 Artificial Intelligence

🤝 B2B

Enterprise • Artificial Intelligence • B2B

RockstarDevelopers GmbH is a German software engineering and consulting firm that builds enterprise‑grade web, AI and Web3 solutions for large B2B clients. They provide end‑to‑end services including frontend, full‑stack and mobile development, AI application development (OpenAI Enterprise, LangChain, vector DBs), Web3 projects, and technical consulting around architecture, microservices, migrations and process optimization. The company focuses on digital transformation and modernization for enterprise customers, partnering with well‑known brands to deliver scalable, production‑ready systems and strategic digital roadmaps.

📋 Description

• Work on client projects at large enterprises, embedded within their teams • Take responsibility for your area • Fullstack development in enterprise environments • Help shape architecture, not just implement it • Generate, review, and refactor code • Conduct code reviews and provide technical mentoring within the team • Coordinate with Product Owners, UX and DevOps

🎯 Requirements

• Senior level • Proven project experience in the Deutsche Bahn or DB Systel environment • Several years of experience in the DB context • Knowledge of rail-specific domains such as timetable management, sales/retail, or signaling and control systems • Tech stack: Frontend: React or Angular, TypeScript • Backend: Java/Spring Boot, .NET, Kotlin or Python • Cloud: AWS or Azure • Databases: PostgreSQL, MongoDB or comparable • CI/CD, Docker, Git • Kubernetes, Terraform, Microservices • Experience with AI tools such as Claude Code, Copilot or Cursor is required

🏖️ Benefits

• Remote, office or hybrid — you decide • MacBook (unless the client provides hardware) • Variety of clients and projects • Internal upskilling: we invest in your AI skills (EXO 3.0, Agent Passport, certifications)