Apr 2022 — nowMunich, DE
Senior Software Engineer
Data Reply GmbH — consulting across retail, automotive and IoT
Luxury retailer · Spain
- Modernised the retail architecture to cut latency by 40%, making real-time operational decisions possible.
- Built a data transformation layer on Apache Flink with Flink SQL, processing millions of events a day at sub-second latency.
- Provisioned Kafka clusters and supporting infrastructure on Confluent Cloud with Terraform — deployment time down 70%, uptime at 99.9%.
- Delivered live streams for product inserts, price-change alerts and stock notifications, landing within seconds.
Automotive software provider · Germany
- Led end-to-end delivery of a cloud-native Data Access and Sharing Hub on Azure microservices, adding the governance layer to the company's data mesh.
- Designed an enterprise data catalog with a FastAPI REST framework supporting 10+ data formats, cutting discovery and integration time by 70%.
- Engineered secure access management with Databricks Delta Sharing and Unity Catalog for governed distribution.
- Built an asynchronous event-driven notification service alerting data owners by email and in-portal.
- Tightened release cycles with Helm, ArgoCD and GitOps — mean time to deploy improved 75%.
IoT device manufacturer · Germany
- Implemented real-time sensor streaming with dynamic filtering at 100K+ events per second, reducing downstream noise by 35%.
- Wrote WebSocket and Kinesis consumers in Spring Boot, lifting ingestion throughput 40% at sub-second latency.
- Deployed microservices on AWS Fargate with auto-scaling through 5x traffic spikes, halving infrastructure overhead.
- Integrated AWS Cognito for API authentication across 10K+ users at 99.9% success.