Titus Ex
Co-Founder at Minimal AI (YC S25)
San Francisco, California, United States
Summary
🤩
Rockstar🎓
Top SchoolTitus Ex is a founder-engineer with 11 years of experience building production ML and security-focused systems, now co-founding Minimal AI to autonomously handle e-commerce customer support. He blends an MSc in Applied Mathematics from TU Delft with hands-on roles at Soda and Uber, shipping data reliability and ML solutions at scale. His background spans embedded Rust development for atsamd microcontrollers and core security/network work on the high-profile Tailscale codebase, showing fluency from low-level firmware to distributed systems. Based in San Francisco and an alum of Y Combinator, he pairs product instincts with strong technical craft and actively recruits engineers to grow his startup. Colleagues would note his uncommon mix of formal math training, embedded-systems contributions, and production security engineering.
11 years of coding experience
4 years of employment as a software developer
Bachelor, Econometrics, Bachelor, Econometrics at Vrije Universiteit AmsterdamY CombinatorMaster of Science - MS, Applied Mathematics (Specialisation Track: Computational Science and Engineering), Master of Science - MS, Applied Mathematics (Specialisation Track: Computational Science and Engineering) at TU DelftGymnasium, Gymnasium at Vossius Gymnasium Amsterdam
Dutch, English
Github Skills (21)
vpn10
authentication10
user-authentication10
abstraction-layer10
spi10
microcontroller10
go10
dns10
sys10
embedded10
network-security10
rust10
hal10
wireguard9
tailscale9
Programming languages (13)
Github contributions (5)
tailscale/tailscale
Apr 2022 - Jan 2023
The easiest, most secure way to use WireGuard and 2FA.
Role in this project:
Back-end Developer & Security Engineer
Back-end Developer & Security EngineerContributions:387 reviews, 104 commits, 264 PRs in 9 months
Contributions summary:Tom DNetto primarily focused on enhancing the security and functionality of the Tailscale project, with a focus on network-level changes. The contributions include implementing DNS over TCP for improved DNS handling and security, refactoring the DNS request path, and implementing support for a range of TKA-related features like signature verification, node key rotation, and the key authority process. These changes suggest a substantial involvement in the project's core networking and security infrastructure.
secureprivacysecurityvpnwireguard
atsamd-rs/atsamd
Sep 2019 - Sep 2021
Target atsamd microcontrollers using Rust
Role in this project:Embedded Systems Engineer / IoT Developer
Embedded Systems Engineer / IoT DeveloperContributions:62 reviews, 23 commits, 94 PRs in 2 years
Contributions summary:Titus focused on developing embedded systems software for atsamd microcontrollers using Rust. Their contributions centered around adding support for the ItsyBitsy M4 board, integrating USB functionality for the samd51, and implementing various hardware abstraction layers (HALs). Key tasks involved modifying pin definitions, adding timer functionality, implementing watchdog and serial number accessors, and integrating SD card SPI initialization with an example program. These changes facilitated broader board support, and introduced key peripheral features to the embedded ecosystem for the atsamd family of microcontrollers.
samd51nrf52840rustatmelsame54
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