Senior Backend Engineer (m/w/d) – Gaming/Loyalty Engine (in Arbeitnehmerüberlassung)

Confidential

Köln, Germany Remote Agency contract

Posted: February 25, 2026

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Quick Summary

We are looking for a Senior Backend Engineer to develop a complex gaming loyalty engine for a leading e-commerce app in Germany. The ideal candidate should have experience with high-performance gaming applications and strong problem-solving skills. The successful candidate will be responsible for designing and implementing a highly scalable and secure engine, with a focus on real-time data processing and high-performance architecture.

Required Skills

Backend Development Kotlin Java Spring Boot PostgreSQL Testing Scalable Architecture Code Quality Agile Collaboration Cloud Infrastructure

Job Description

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