Stefan Radu

Shipped production features in Kotlin and Jetpack Compose for a live e-learning platform; managed the Google Play Store release process Contributed to a KMP super-app migration, building features across shared and platform-specific modules under a modular architecture Set up CI/CD pipelines for automated Play Store deployments using GitLab, Gradle, Firebase, and Sentry Integrated MediaSoup (C++) for real-time media; utilized Coroutines, Hilt, and WebView across features

Independently designed and delivered an Angular + Kotlin Spring Boot platform serving 50+ staff and 1,500 students across three user roles Implemented JWT auth, role-based access control, and secure document workflows; handled deployment on Ubuntu via Laravel Forge Software Developer

Built 25+ Angular standalone-component pages with RxJS, Reactive Forms, PrimeNG, and Tailwind for a B2B fintech platform; migrated codebase from Angular 18 to 19 Implemented in-browser PDF annotation with live drag, reposition, and removal of tagged elements Designed 40+ OptaPlanner scheduling constraints with seeding utilities for a retail logistics employee scheduling system Delivered backend features end-to-end in Spring Boot with JPA/Hibernate and Oracle DB

Integrated Azure AI models into internal tooling during a company hackathon. Participated in architecture and design discussions on an enterprise project.