Experienced Software Engineer Customer Order Services (m/f/d)

Experienced Software Engineer Customer Order Services (m/f/d)

For us „Let’s Go!“ is not just a slogan, it is an attitude. We love technology and we want to excite. We have fun and want to inspire. Our customers and our teams. That’s why we are looking for people who share this spirit. People who are passionate about creating the shopping experience of the future together with 50.000 colleagues across Europe.

• Design, implementation, and continuous evolution of COS REST APIs and event schemas (OpenAPI, Kong), enabling contract-first integrations and decoupling of consumers from OMS platforms
• Development and orchestration of event-driven order workflows using Kafka/Kafka Streams and Temporal (basket-to-order, payment/checkout, digital activation, fulfillment/TMS), with a focus on reliability, idempotency, and auditability
• Build-up, maintenance, and optimization of data persistence and propagation, including order data modeling in MongoDB and PostgreSQL, real-time synchronization with corporate systems, and support for analytics through Pub/Sub integration with BigQuery, ensuring high data quality and PII protection
• Operation and continuous improvement of the platform on GCP/Kubernetes using GitOps (Flux), including production monitoring and troubleshooting, performance and scalability optimization, incident management, and enhancement of SLAs, security, and platform resilience

Qualifications

• Strong experience building event-driven, distributed systems
• Proficiency in Kotlin on the JVM; solid Java skills; familiarity with Python or TypeScript is a plus
• Proven track record designing contract-first RESTful APIs with OpenAPI, including versioning, error models, and API gateway policies (e.g., Kong/Apigee)
• Practical experience with relational and noSQL DBs (like MongoDB and PostgreSQL), schema design, transactions, performance tuning in high-throughput environments
• Cloud-native operations on GCP with Kubernetes and Terraform; GitOps (Flux), CI/CD, observability (logging, metrics, tracing), and production troubleshooting
• Integration expertise using synchronous and asynchronous patterns (Kafka, Google Pub/Sub, etc.) across enterprise systems
• Strong focus on reliability, security, and compliance for customer order data (SLAs, auditability, PII/GDPR), with clear communication and cross-functional collaboration skills

Benefits

• International teams & versatile tasks
• 30 days vacation & subsidized company pension plan
• Training & Education
• Mobile work