IonQ is seeking a Staff Cryptography Engineer in Geneva to help build post‑quantum cryptography hardware acceleration for HSM and network appliances. You will implement software for ML‑KEM, ML‑DSA and SLH‑DSA/LMS, with reference models, optimized code, and test infrastructure.Work in C/C++/Rust and Python, create constant‑time implementations, and support verification with NIST ACVP/CAVP, test vectors, and collaboration with RTL and firmware teams to ensure correctness and security. #J-18808-Ljbffr