Senior Backend Developer (PHP)
Core
Design and maintain a high-availability backend platform processing millions of secure transactions daily for global e-commerce.
Role type
Senior Backend Developer (PHP)
Builds
High-availability payment systems, microservices, and APIs for platforms like eBay Kleinanzeigen and IKEA.
Domain
Fintech / E-commerce / Payments
Deliverable
production ML models | product features | infrastructure
Required skills
PHP, Laravel, Symfony, MySQL, Redis, Docker, Kubernetes, C, microservices architecture, database optimization, API design, system reliability, security, agile collaboration
Preferred skills
Experience with scale, payment domain knowledge, complex engineering trade-offs
Responsibilities
Strengthen critical services, introduce cleaner architectures, prepare systems for new payment flows, break big systems into microservices, create APIs and tools for platform growth, guide teammates through engineering trade-offs
Seniority
Senior, hands-on IC