Experteer Overview In this role you design and evolve COS REST APIs and event schemas to enable contract-first integrations, connecting OMS with SAP and other corporate apps.

You build distributed, event-driven order workflows and ensure reliable, auditable processing across the enterprise.

You operate a cloud-native platform on GCP/Kubernetes, focusing on performance, security, and data quality for order data.

You join a cross-functional team to shape the end-to-end order journey and drive scalable, compliant solutions.

Compensaciones / Beneficios • Design, implement and evolve COS REST APIs and event schemas (OpenAPI, API Gateway) to enable decoupled integrations • Develop and orchestrate event-driven order workflows using Kafka/Kafka Streams and Temporal • Model order data with Protobuf and databases (MongoDB, PostgreSQL) and support real-time synchronization to corporate systems • Ensure data quality, PII safeguards, and auditing; facilitate analytics via Pub/Sub to BigQuery • Operate the platform on GCP/Kubernetes with GitOps (Flux); monitor, troubleshoot, and improve SLAs, security,



and resilience Responsabilidades • Strong experience building event-driven, distributed systems • Kotlin on the JVM

- Java proficiency
- Python or TypeScript a plus • Designing contract-first RESTful APIs with OpenAPI and API gateway policies • Relational and NoSQL databases (MongoDB, PostgreSQL); schema design and performance tuning • Cloud-native operations (GCP, Kubernetes, Terraform)
- GitOps (Flux)
- CI/CD; observability • Synchronous and asynchronous integrations (Kafka, Google Pub/Sub) across enterprise systems • Reliability, security, and compliance for customer order data (SLA, auditability, GDPR/PII) • Clear communication and cross-functional collaboration skills Requisitos principales • 10% discount on MediaMarkt website • Versátil Pay via MediaFlex • Flexible working hours; home office option • Two office locations in Barcelona area • Training budget for skills development • Language classes (English, Spanish, German)

📌 Experienced Software Engineer - Fulfillment Order Management (M/F/D) (Barcelona)
🏢 Mediamarktsaturn
📍 Barcelona