Senior Backend Engineer - Checkout (all genders)
About You SE & Co. KG2 days ago
Hamburg, GermanySenior
Responsibilities
- Design and develop scalable checkout APIs and backend architecture using PHP and Go.
- Translate complex business requirements into clean, idiomatic, production-ready implementations.
- Optimize MySQL data access and Redis caching layers for high-throughput, low-latency systems.
- Own technical initiatives from initial design through production deployment.
- Collaborate with product managers and engineers on feature design and delivery.
- Contribute to code reviews, peer mentoring, and engineering quality improvements.
- Use pragmatic technology choices and explore modern tooling, including AI coding assistants.
Requirements
- At least 5 years of hands-on backend engineering experience.
- Strong experience with modern PHP 8+ and frameworks such as Symfony or Laravel.
- Deep experience writing idiomatic Go and using goroutines and channels for concurrency.
- Strong understanding of SOLID principles, clean architecture, and distributed systems design.
- Experience optimizing MySQL through indexing and query tuning.
- Strong experience with Redis caching patterns and data structures.
- Hands-on experience or active interest in GenAI tools for development workflows or product features.
- Ability to independently solve complex technical problems from design through deployment.
- Strong English communication, collaboration, code-quality, and mentoring skills.
Benefits
- Inclusive workplace focused on acceptance, inclusion, and fairness.
- Flexible, creative environment supporting continuous professional development.
- Benefits vary depending on location.
- Application is submitted online through the company career page.
About About You SE & Co. KG
ABOUT YOU SE & Co. KG operates an online fashion marketplace for European consumers and licenses commerce technology to brands via its SCAYLE platform. The group sells apparel and lifestyle products through its mobile app and aboutyou.com, and offers a cloud-based enterprise shop system under a license model to retailers. Founded in 2014 and headquartered in Hamburg, it is a publicly listed company.