xAI's London team is hiring two onsite full-time roles. Backend Engineer: build and scale high-performance production systems powering grok.com and the xAI API; strong Rust (or C++) required; distributed systems experience a plus. Developer Experien…

Building a continuous performance optimization platform to catch performance regressions with sub-1% measurement variance. Trusted by teams at Cloudflare, Vercel, Mozilla, Pydantic, and Astral. Small, deeply technical team offering ownership; compet…

Proton VPN enables millions of people to connect securely and privately, even in places where the internet is restricted or unreliable. Delivering that experience means our service must perform flawlessly under highly variable, real-world conditions…

Hybrid on-site Wireless Communications Engineer role in San Diego focused on SDR and software modem development. Requires strong background in signal theory and experience building software wireless modems, ability to read/write C++, and collaborati…

Multiple 100% remote roles at Tether: Fullstack Developers working across JavaScript/TypeScript on a local AI stack (building user-facing mobile/desktop apps or platform layer bridging C++ inference engines); Lead React Native Engineer and React Nat…

ClickHouse Inc is hiring Senior/Staff/Principal Distributed Systems / Cloud Engineers to build AutoScaling systems for a cloud database and maintain ClickHouse-based data infrastructure. Role is remote (hiring in the US). Candidates should be proact…