Full-Stack Developer – Java, Angular – Mid-Level

🕒 4 days ago

🇩🇪 Germany – Remote

⏰ Full Time

🟡 Mid-level

🟠 Senior

🧑‍💻 Full-stack Engineer

👻 Ghost score 25%

What it means: the chance that no one is really hiring for this job.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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RockstarDevelopers GmbH

WebsiteLinkedInAll Job Openings

11 - 50 employees

Founded 2013

💼 Consulting

📣 Marketing

📦 Logistics

Consulting • Marketing • Logistics

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

• Contribute to customer projects for large companies and public-sector clients, working as part of their teams • Develop full-stack applications using Java/Spring Boot and Angular • Independently implement, test, and deliver features from the API layer through to the user interface • Generate, review, and refactor code using Claude Code, Copilot, or Cursor • Participate in and conduct code reviews • Coordinate with Product Owners, UX, and DevOps teams • Work on projects for large corporations, the public sector, government agencies, and enterprise and mid-sized clients • Attend occasional on-site client meetings, usually in Frankfurt am Main

🎯 Requirements

• At least three years of professional experience as a developer, counted after completing vocational training or a university degree • Java (17+) and Spring Boot • Angular with TypeScript • REST APIs and relational databases, especially PostgreSQL • Testing with JUnit as part of the Definition of Done • Git, CI/CD, and agile working methods • AI tools are required: productive use of Claude Code, Copilot, or Cursor • Willingness to quickly learn new technology stacks • Nice to have (not required): LLM integration in applications (RAG, tool calling, agents) • Nice to have (not required): Docker and Kubernetes, Kafka • Nice to have (not required): Kotlin, Camunda (BPMN process automation), Keycloak/OAuth 2.0 • Nice to have (not required): AWS or Azure, JPA/Hibernate • Nice to have (not required): Front-end testing (Jest, Playwright, Cypress), accessibility (BITV 2.0 / WCAG AA)

🏖️ Benefits

• Permanent employment contract • Work from home, from the office, or a combination—you decide • MacBook (unless the client provides its own hardware) • A variety of clients and projects • The founders are your direct points of contact • Internal upskilling in AI development

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