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Ozgen GunayOG

Ozgen Gunay

Senior Software Developer

€720/day
Amsterdam, NL
15+ years

Average response time: 1 hour

About Ozgen

Senior Software Developer with 10+ years of international experience designing and delivering microservices, cloud-native applications, and large-scale distributed systems. Skilled across the full SDLC—from architecture and design to deployment and optimization—with a proven track record of building scalable, fault-tolerant, and high-performance solutions.
  • English

    Native or bilingual

Can work on-site
Amsterdam (up to 50km)

Experience

  • Booking.com
    Senior Software Developer
    July 2025 - Today (11 months)
    Amsterdam, Netherlands
    • ● Migrating Meta Search API from Perl v2 and Java v3 into a unified compatibility layer.
    • ● Implementing performance and reliability enhancements, caching and monitoring.
    Java Apache Kafka Kubernetes Google cloud Python
  • Credit Bureau KKB
    Senior Software Developer
    August 2024 - July 2025 (11 months)
    • ● Designed and maintained microservices integrating subscriber systems with revenue administration.
    • ● Improved performance through asynchronous processing, batching, caching, and subscriber-based load scheduling.
    • ● Migrated selected microservices from WebLogic to OpenShift.
    • ● Delivered internal training on OpenShift, testing strategies (TestContainers, smoke testing), and data streaming technologies (Kafka, Spark).
    Java Kubernetes Oracle Apache Kafka REST
  • ING Bank N.V.
    Senior Software Developer
    January 2024 - August 2024 (7 months)
    • ● Developed EOD/SOD microservice orchestration (Dovetail payments).
    • ● Enhanced payment engine with quality & repair plugins.
    Java Oracle Spring boot REST Python

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Education

  • B.Sc. Electrical Engineering
    Istanbul Technical University
    B.Sc. Electrical Engineering

Certifications

  • AWS Certified Solutions Architect – Associate
    AWS
    2017

Skill set

Categories