Summary
Samuel Koprivnjak is a seasoned team lead with 11 years building telco-grade 4G/5G systems and distributed, high-availability C++ services such as UDR/UDM and AAA servers for major operators like Verizon and T-Mobile. He combines hands-on implementation, technical analysis and bug fixing with Scrum leadership and mentoring, and has led teams at Enea, Atos and Siemens across product delivery and customization. Comfortable across languages—C++, Java, JavaScript and Python—he also runs end-to-end testing and troubleshoots Kubernetes and OpenStack deployments. Outside core telecom work he experiments with frontend and mobile stacks (ReactJS, React Native, Kotlin, Swift) and maintains a personal GitHub that reflects a practical, if occasionally outdated, tinkering mindset. He has presented technical talks on 5G security and Kotlin, showing an interest in both protocol-level detail and developer ergonomics. Based in Croatia, Samuel blends deep protocol knowledge with pragmatic system-building and team enablement.
11 years of coding experience
4 years of employment as a software developer
Bachelor of Science in Information Technology, Process Computing, Bachelor of Science in Information Technology, Process Computing at Sveuèilište 'Josipa Jurja Strossmayera' u Osijeku
Opća Gimnazija Vukovar
English, German