Umut Kahraman is a senior software engineer with a decade of experience building scalable .NET web applications and microservices, now based in Vancouver. He has a strong track record delivering high-performance APIs and cloud-integrated systems, including reducing booking latency from ~20s to ~7s by introducing async processing and building 10+ microservices at RoofStacks. His background includes large-scale transactional systems for utilities, e-government APIs used by millions, and integrations with major flight providers (Sabre, Amadeus, Travelport), demonstrating both domain breadth and production-grade reliability. Proficient across SQL and NoSQL databases, API gateway patterns, and authentication systems like Keycloak/OpenLDAP, he also modernized legacy landscapes with centralized logging and storage (Graylog, MinIO). Comfortable in agile teams, he pairs hands-on coding and refactoring with test-driven improvements and a continuous focus on performance and operability. Known for pragmatic problem-solving, he blends backend depth with practical cloud and integration expertise that often surfaces in cross-system optimization work.
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