Amazon
Applied Scientist, Amazon Cryptographic Libraries
$143K–$193K
Seattle, WA · Full-time · Posted Aug 31, 2026
- Education
- PhD or equivalent research experience
About the job
Build machine-checked proofs that cryptographic implementations are correct, while contributing to algorithm implementation and optimization for production cryptographic libraries.
What you'll do
- Develop formal specifications and machine-checked correctness proofs for AWS-LC cryptographic implementations.
- Apply formal methods, program analysis, and testing to improve assurance in security-critical code.
- Contribute to implementing and optimizing cryptographic algorithms, including post-quantum constructions, and collaborate on production-grade software.
What they ask for
- PhD or equivalent research experience.
- Experience in mathematical logic, formal verification, satisfiability solving (e.g., SAT/SMT), mechanical theorem proving, model checking, or program analysis.
Nice to have
- Hands-on experience with an interactive theorem prover such as HOL Light, Isabelle/HOL, Lean, Coq, or Verus.
- Experience verifying low-level software; familiarity with cryptography, C/Rust/assembly, or post-quantum cryptography.
Pay
142,800.00 - 193,200.00 USD annually (base salary)
Tools
AWS-LC, C, assembly, HOL Light, Isabelle/HOL, ML-KEM, ML-DSA, SLH-DSA
Model-written summary · the original posting is authoritative