Oğuzhan Karacüllü
Staff Software Engineer at Delivery Hero
Berlin, Germany
Summary
👤
Senior🎓
Top SchoolOğuzhan Karacüllü is a Staff Software Engineer based in Berlin with 11 years of experience building scalable backend systems, fintech payment platforms, and data-driven analytics. He blends deep Java/Kotlin expertise, distributed systems design, and hands-on microservices & Kubernetes operations to split monoliths, remove scalability bottlenecks, and ship fully automated CI/CD releases. At Delivery Hero he led payment and wallet service work, while earlier roles delivered high-throughput threat intelligence and social media analytics systems processing hundreds of millions of events daily. He contributes to open-source identity management (midPoint), focusing on admin UI and authentication fixes, reflecting a practical full-stack mindset. Known as a developer, dreamer, and learner, he pairs entrepreneurial curiosity with rigorous testing and monitoring practices. Beyond code, he actively mentors teammates, serves on-call rotations, and drives Agile improvements to boost team productivity.
11 years of coding experience
8 years of employment as a software developer
Associate’s Degree, Department of English, Associate’s Degree, Department of English at Hacettepe ÜniversitesiHigh School, General Science, 4.85, High School, General Science, 4.85 at Adana Science High School
English
Stackoverflow
1reputation
0reached
1answer
0questions
Github Skills (5)
java9
javas9
html8
webview6
android6
Programming languages (5)
Github contributions (5)
Evolveum/midpoint
Apr 2015 - Jun 2015
Evolveum MidPoint: Identity Management (IDM) and Identity Governance (IGA)
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:26 commits, 20 pushes, 1 comment in 2 months
Contributions summary:Oğuzhan's contributions primarily involved modifications to the admin-gui, including the creation of language property files and fixing of the password questions feature. They also addressed minor issues such as deleting old system outputs and merging branches. The changes touched upon Java code and HTML, indicating a focus on the front-end and potentially some back-end aspects related to user interface elements and user authentication.
identity-managementidentity-provideridentity-governanceiamidentity
ogz00/SpringMVC-SpringSecurity-MySql-Hibernate
Jun 2015 - Jul 2015
Contributions:50 commits, 46 pushes, 1 branch in 27 days
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