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Senior Backend Engineer - Checkout (all genders)
Unknown Company · Hamburg, HH, Germany
About The Role
- Help envision and work hand-in-hand with other colleagues to develop a scalable software architecture for our API written in PHP
- Work directly with product managers and engineers to translate complex business requirements into clean, idiomatic Go implementations , ensuring features are well-designed and delivered on time
- Champion modern engineering practices, including Test-Driven Development (TDD) , pair programming, and automated CI/CD pipelines to keep code quality and team velocity high
- Choose technology pragmatically by matching the right tools to the specific problem , maximizing Go’s concurrency and performance without being rigid or dogmatic
- Take direct ownership of technical initiatives in a flat engineering culture where your ideas are valued and decision-making paths are exceptionally short
- Mentor fellow developers through code reviews and collaborative sessions, elevating team standards while continuously exploring modern tooling like AI coding assistants
- 5+ years of hands-on experience in backend engineering , with a strong focus on modern PHP (8+) and frameworks like Symfony or Laravel
- Deep experience writing clean, idiomatic Go and leveraging its native concurrency primitives (goroutines, channels) to build high-throughput, low-latency APIs.
- Solid grasp of core engineering principles ( SOLID, clean architecture ) and distributed system design
- Strong experience optimizing data and caching layers using MySQL (indexing, query tuning) and Redis (caching patterns, data structures)
- Hands-on experience or active interest in using GenAI tools to streamline development workflows or build modern product features
- Proactive problem solver capable of tackling complex technical tasks independently from initial design to production deployment
- Collaborative team player with strong English communication skills , dedicated to code quality, peer mentorship, and elevating overall team performance
- Your perks at a glance: Visit our  benefits page .
- Simply apply online via our career page  - we will get back to you as soon as possible!
- (Please note that benefits may vary depending on the location)
A Place Where You Can Be You
- We take it as our responsibility to create an environment where everyone feels welcome, exactly as they are.
- Different backgrounds and perspectives make us stronger and shape our culture in ways that matter.
- What we stand for internally, we stand for as a brand: acceptance, inclusion, and fairness.
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