A staff / principal / founding-engineer & CTO search across the joined arms — HFT/trading, crypto-systems, fintech/quant, data-infra, biotech data-plane. Same skillset: Rust / Go / Python, low-latency high-throughput data. Remote-first, EU-reachable.
Staff / principal / CTO / founding at a startup — not senior. Remote-first, Rust/Go/Python is the core language. EU-only (US = reference). Pay well or tag comp: unknown. Careers-root links only.
Biotech domain deep-dives (protein-sim, synthetic-biology, programmable-bio, and the rest) live in the biotech guide →. Selection standards + employer roster are the agent's, in careers/CLAUDE.md + ~/workspace/biotech/employers.yml.