Senior Backend Engineer Rust

I’m working with an early-stage cybersecurity company building infrastructure to solve one of the biggest challenges emerging from the rise of AI agents: identity and security at scale. They’re looking for a Senior Rust Engineer who can hit the ground running and take ownership of core backend infrastructure. This is a hands-on IC role focused on architecture + heavy coding, working directly with the technical leadership team. What they need: Strong production Rust experienceHSM / hardware security integrationExperience integrating with HSMs or other hardware security devices is essential. Rust experience here is a major plus. L4/L7 middleware or reverse proxy development You should have personally built middleware or a reverse proxy that intercepts and processes network traffic. Security / cryptography experience Experience with certificate authorities, certificate lifecycle, key generation, encryption, PKI, or broader cybersecurity is highly valuable. The role: • Senior IC — architecture + hands-on engineering • Work directly with the founders / technical leadership • Small engineering team with high ownership • Build core identity infrastructure for AI agents • Potential to grow into broader technical leadership over time • Oakville / GTA — ~3 days in office