Overview
In this role you design and evolve COS REST APIs and event schemas to enable seamless, contract-first integrations. You orchestrate robust, event-driven order workflows and ensure reliable, auditable processing across enterprise systems. You model and propagate order data with strong data quality and privacy safeguards, enabling real-time synchronization and analytics. You operate a cloud-native platform on GCP/Kubernetes with Git Ops, continuously improving performance, security, and SLAs. You will work closely with cross-functional teams to turn complex order data into scalable, value-driving solutions.
Compensaciones / Beneficios
10% discount on Media Markt site
Flexible Pay (Media Flex program)
Versátil working hours and home office options
Training budget for skill development
Language classes (English, Spanish, German)
Birthday off Responsabilidades
Design, implement, and evolve COS REST APIs and event schemas (Open API, API Gateway) for contract-first integrations
Develop and orchestrate event-driven order workflows using Kafka/Kafka Streams and Temporal
Model order data (Protobuf) and manage persistence across Mongo DB and Postgre SQL; support real-time syncing to corporate systems




Enable analytics via Pub/Sub to Big Query with data quality and PII safeguards
Operate the platform on GCP/Kubernetes with Git Ops (Flux); monitor, troubleshoot, and optimize performance and SLAs
Ensure reliability, security, and auditability of customer order data; drive incident management and cross-functional collaboration Requisitos principales
Strong experience building event-driven, distributed systems
Proficiency in Kotlin on the JVM; solid Java skills; Python or Type Script a plus
Experience designing contract-first RESTful APIs with Open API, including versioning and API gateway policies
Practical experience with Mongo DB and Postgre SQL; experience with schema design and high-throughput transactions
Cloud-native operations on GCP; Kubernetes and Terraform; Git Ops (Flux); CI/CD; observability
Integration expertise across synchronous and asynchronous patterns (Kafka, Google Pub/Sub)
Focus on reliability, security, and GDPR/PII compliance; strong cross-functional communication clear communication
cross-functional collaboration
problem-solving
Kafka
Kafka Streams
Temporal

📌 Experienced Software Engineer - Fulfillment Order Management (m/f/d) (Barcelona)
🏢 Mediamarktsaturn
📍 Barcelona