Madrid’s about to switch back on after summer — and if you’re coming back from holiday thinking “new season, new move”… this is a strong one.

We’re hiring a hands-on Java Engineer to work on a mission-critical, real-world platform running on Java 7 / Java 8. This is not greenfield hype. It’s production engineering: stability, performance, clean refactoring, and careful delivery.

Location: Madrid (hybrid - 50% in office) Type: Permanent Language: Spanish (daily working), English (conversational)

What you’ll be doing Building and maintaining backend services in Java 7/8 Debugging incidents, improving performance, and shipping safely in production Working in a mature codebase with pragmatic refactors, clean code,



and sensible testing Collaborating closely with a Madrid-based engineering team

What we’re looking for Strong commercial experience with Java 7 and/or Java 8 (this is essential) Solid backend fundamentals (APIs, data access, reliability, troubleshooting) Comfortable working in legacy constraints with a calm, methodical approach Based in Madrid or open to relocating

Why it’s worth a look High-impact systems people actually rely on A role for engineers who like depth over buzzwords Good timing: fresh pipeline needed for mid-August client review

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📌 Java Backend Engineer (Legacy Systems) (Madrid)
🏢 Allen Recruitment
📍 Madrid