Summary
✨ AI‑Generated
A senior full stack development role focused on maintaining and modernizing enterprise applications. The position involves Java development, API work, testing, and collaboration within multidisciplinary Agile teams.
Highlights
Long-term development opportunity with ownership of mature systems, modernization projects, and collaborative Agile practices.
Description
On behalf of one of Luxembourg's leading insurance groups, GS Advisory is looking for several Fullstack Java Developers to join a multidisciplinary Agile team on a long-term mission.
You will work on a business-critical application portfolio within the local contracts domain, in an environment where code quality, autonomy and knowledge sharing genuinely matter.
This is a role for developers who enjoy taking ownership of a mature system: understanding its history, mastering its business rules, and modernising it step by step rather than rewriting it from scratch.
The mission
- Design, develop, test, deploy and monitor applications, primarily in Java 8.
- Maintain and evolve REST APIs written in Scala and existing frontend interfaces, and contribute to the progressive modernisation of a legacy application portfolio.
- Take an active part in Agile ceremonies and practices (Kanban and Scrum) within a multidisciplinary team.
- Write and maintain automated tests (Playwright), and use AI-assisted development tools daily to improve quality, maintainability and productivity.
- Build deep functional and technical expertise on a strategic business domain, and support your colleagues through pair programming, code reviews and knowledge sharing.
Your profile
- 5+ years of hands-on experience as a Fullstack Java developer, ideally in an Agile environment.
- Excellent command of object-oriented programming in Java 8 and above, including the full software development lifecycle.
- Solid frontend fundamentals: HTML, CSS and JavaScript, with the ability to consume and integrate REST APIs.
- Practical experience with relational databases (DB2 is a strong plus) and with designing and building REST APIs.
- Appreciated: functional programming (Scala), COBOL, Kafka, MongoDB, asynchronous Bash processing, JSON:API, Kubernetes, Datadog or Sentry, Git.
What we offer
- A long-term mission running until the end of 2026, with a strong likelihood of extension into 2027.
- A technically demanding environment with real ownership, plus the opportunity to grow into Scala and potentially Angular as priorities evolve.
- Based in Luxembourg, on site a minimum of 3 days per week, with up to 2 days of remote work per week, subject to the tax regulations of your country of residence.
- Full-time or part-time applications are both considered: simply tell us your availability.
- Company canteen, time-tracking system with recoverable hours, and a location well served by public transport (free across Luxembourg).
