Member of Technical Staff at OpenAI
Building joyful experiences at Codex.
Sergio Mattei
Ambitious software engineer
I'm a 1×-exit engineer passionate about building delightful user experiences.
Work Experience
Software Engineer at Microsoft
Crafting cutting-edge UI/UX at Azure Monitor and improving team velocity through fast, modern tooling.
- Delivery of multiple high-impact features
- Building and revitalizing internal UI libraries
- Upstream contributions to Chromium
Freelance Full-Stack Product Engineering
Design, development and strategy for YC-backed startups looking to quickly take ideas to market.
From The Blog
Storing WebAuthn challenge values without a database in Elixir
One of the key requirements for the challenge-response authentication in passkeys is the brief storage of a challenge string.
