Stefan Rizescu
Fullstack developer
Education
University of Bucharest, Faculty of Mathematics and Informatics
Bachelor's of Computer Science
Work experience
Codestory
Junior Software Develope — Bucharest, Romania
- Oprisa.de (React · TypeScript · Next.js · PostgreSQL) — Built a greenfield fleet platform for managing approx. 200 UberEats couriers, with a primary focus on improving user management and streamlining onboarding efficiency.
- Medx5 (React · TypeScript · Remix) — Built a full-stack platform for AED registration and training management, implementing robust user authentication, core application logic, and registration workflows for device location tracking.
- Fepra (React · TypeScript · Tanstack Router · GraphQL) — Led a strategic overhaul of the main application; integrated new technologies and optimized key workflows to improve efficiency and build a scalable foundation.
Stiri bazate
Volunteer Software Developer — Remote
Established the project setup and component library for an admin dashboard that enables 30+ non-technical editors to write articles and publish articles independently; prototyped a scalable design system for future development.
UPB Rust Workshop
- Actively involved in organizing a biannual, two-day workshop focused on introducing students to basics of Rust.
- Designed and instructed the web servers section for 30+ students per session, teaching essential HTTP concepts, practical Axum framework usage, and advanced topics like Websockets and asynchronous programming.
- Coordinated a highly impactful one-day OSS hackathon with 120+ student participants, consistently generating over 60 meaningful code contributions to significant Rust projects such as Cargo and TockOS.
Upriver Technologies
Junior Software Developer — Bucharest, Romania
Developed and shipped web & native full-stack applications across healthcare, social, and hospitality sectors, consistently delivering under tight deadlines and evolving priorities.
- Healthentia (React Native · JS) — Transformed an unstable Android health app prototype into a viable product and stabilized the app by eliminating critical startup crashes and refined UX for medical data and authentication flows.
- Momsi (React Native · Node.js · PostgreSQL) — Took full ownership of the mobile app and backend. Redesigned user onboarding, rebuilt key Marketplace features, and implemented 15+ new end-to-end features independently.
- Dinner in the Sky (React · Remix · TypeScript) — Built a reservation and admin system from concept to deployment. Added real-time booking, content tools for non-technical users, and payment and scheduling workflows.
Projects
Aegis
My bachelor's thesis
AERGO
I'm building a links hoarder in my image and likeness
Mishell
We had to do a shell for a OS course, so we chose rust.
RZstd
My take on the Zstd compression algorithm
Tau
TODO
Term
Notion calendar was not enough, so I took my schedule in my own hands