[Skip to main content](#main-content) [ OpenNash ](https://opennash.com/) / [Jobs](https://jobs.opennash.com/) [ 01 Search jobs](https://jobs.opennash.com/search/)[ 02 Companies](https://jobs.opennash.com/explore/)[ 03 Hiring report](https://jobs.opennash.com/reports/hiring/)[ 04 AI assistants](https://jobs.opennash.com/connect/)[ 05 How it works](https://jobs.opennash.com/methodology/) Amazon · Seattle, WA # Applied Scientist, Amazon Cryptographic Libraries US, WA, Seattle Research & Science Listed on Amazon’s official careers site. Posted August 31, 2026. Check that it is still open and apply there. [Apply on Amazon’s careers site →](https://www.amazon.jobs/en/jobs/10522632/applied-scientist-amazon-cryptographic-libraries) [OpenNash Jobs](https://jobs.opennash.com/) / [Amazon](https://jobs.opennash.com/companies/amazon/) / Applied Scientist, Amazon Cryptographic Libraries ## Job description The Amazon Cryptographic Libraries(ACL) team builds the cryptography that AWS services and a growing open-source community depend on, including AWS-LC, our FIPS-validated open-source cryptographic library. As an Applied Scientist on the team, your primary focus will be formal verification: building machine-checked proofs that cryptographic implementations are correct. You will also contribute to algorithm implementation, assembly level optimization, and the adoption of post-quantum cryptography. You will work alongside senior scientists on the team, building deep expertise in an environment where your proofs and code ship to effectively every AWS service. This is a role where an early-career scientist gets both rigorous mentorship and immediate production-scale impact. ### Key job responsibilities - Develop and maintain machine-checked proofs of correctness for cryptographic implementations in AWS-LC, working alongside senior scientists. This is the core of the role. - Specify the functional behavior of low-level cryptographic code (C, assembly) in formal notation and verify it using interactive theorem provers (HOL Light, Isabelle/HOL, or similar). - Apply formal methods, program analysis, and rigorous testing to raise the assurance bar of a security-critical, widely deployed codebase. - Contribute to the implementation and optimization of cryptographic algorithms, including post-quantum constructions (ML-KEM, ML-DSA, SLH-DSA), for production use. - Collaborate with SDEs, security engineers, and partner teams to translate verified implementations into production-grade, FIPS-validated software. - Grow your expertise through publications, open-source contributions, and engagement with the broader formal-methods and cryptographic research communities. ### A day in the life You take a cryptographic algorithm that needs to be provably correct. Working with a senior scientist or an ARG partner, you write the formal specification of its behavior, develop the proof in an interactive theorem prover, and iterate until the machine checks it end to end. Some days you are debugging a proof obligation that does not discharge; other days you are reading a paper on a new verification technique or helping refine an algorithm implementation so it is both fast and amenable to proof. Your proofs back code that is validated for FIPS and deployed across AWS, so you operate at an assurance bar most scientists never encounter this early in their career. ### About the team ACL owns AWS-LC (Amazon's FIPS-validated libcrypto), the Amazon Corretto Crypto Provider (ACCP), and managed third-party cryptographic libraries, the cryptographic foundation under nearly every AWS service and a growing set of external open-source projects. Applied Scientists on the team own algorithm-level and assembly performance work and partner deeply with Amazon's Automated Reasoning Group on formal verification. The team has senior scientists who actively mentor and collaborate, so an early-career scientist gets both research depth and production-scale reach from day one. ## At a glance - Posted by the employer: Aug 31, 2026 - First seen by OpenNash: Nov 8, 2026 - Last checked: Nov 8, 2026 - Listed for: 69 days - Location: US, WA, Seattle[Apply on Amazon’s careers site →](https://www.amazon.jobs/en/jobs/10522632/applied-scientist-amazon-cryptographic-libraries) ## Hiring at Amazon - Open jobs: 21,930 - New in the last 7 days: After two weekly collections - Tracked since: Jul 10, 2026 [All Amazon jobs](https://jobs.opennash.com/companies/amazon/) · [Weekly hiring report](/reports/hiring/) ## More jobs at Amazon ### [Applied Scientist, Applied AI Solutions](https://jobs.opennash.com/companies/amazon/jobs/c933133e6ae7eddd72d4/) US, WA, Seattle ### [Applied Scientist, Automated Reasoning Group](https://jobs.opennash.com/companies/amazon/jobs/55da1ebb5b024f3d1b6b/) US, WA, Seattle ### [Applied Scientist, BRP Payment Risk ML, BRP Payment Risk ML](https://jobs.opennash.com/companies/amazon/jobs/34abe4a26826942699ab/) US, WA, Seattle ### [Applied Scientist, Bidding Science and Experimentation](https://jobs.opennash.com/companies/amazon/jobs/6335da7cc33eb6780de1/) US, WA, Seattle ## Similar jobs at other companies ### [Director - Cryptographic Architecture & Engineering](https://jobs.opennash.com/companies/american-express/jobs/55d414bac35de8455293/) American Express · Phoenix, AZ, United States ### [Associate - Cryptographic Payment Key Management](https://jobs.opennash.com/companies/american-express/jobs/0a27533a596ab8e6cf7c/) American Express · Phoenix, AZ, United States ### [Systems Engineer - Cryptographic Systems](https://jobs.opennash.com/companies/general-dynamics/jobs/99045b965b31d498e485/) General Dynamics · Dedham, MA, US ### [Senior Systems Engineer - Cryptographic Systems | General Dynamics](https://jobs.opennash.com/companies/general-dynamics/jobs/870b086b37705ddc8d97/) General Dynamics · Dedham, MA, US ### [Cryptographic Analyst](https://jobs.opennash.com/companies/booz-allen-hamilton-holding/jobs/b1ded6456a7e80d77b14/) Booz Allen Hamilton Holding · Chantilly, VA [Jobs in Seattle, WA](/locations/us/wa/seattle/)[Jobs in Washington](/locations/us-wa/)[Research & Science jobs](/functions/research-science/) OpenNash lists jobs from employers’ own careers sites and does not handle applications. Dates come from the employer where stated; “first seen” and “last checked” are our own observations. [ OpenNash ](https://opennash.com/) AI-native services firm that builds custom software and 24/7 AI agents. OpenNash Jobs is an OpenNash Applied AI project. [Book time with OpenNash](https://calendly.com/opennash/new-meeting?hide_gdpr_banner=1) Jobs - [Search jobs](https://jobs.opennash.com/search/) - [Companies](https://jobs.opennash.com/explore/) - [Hiring report](https://jobs.opennash.com/reports/hiring/) - [AI assistants](https://jobs.opennash.com/connect/) - [How it works](https://jobs.opennash.com/methodology/) OpenNash - [opennash.com](https://opennash.com/) - [Services](https://opennash.com/ai-agent-consulting/) - [OpenNash CX](https://opennash.com/cx/) - [AI Tools](https://opennash.com/ai-tools/) - [Blog](https://opennash.com/blog/) - [About](https://opennash.com/about/) Contact - [hello@opennash.com](mailto:hello@opennash.com) - [LinkedIn](https://www.linkedin.com/company/opennash) - [Support](https://jobs.opennash.com/support/) - [Privacy](https://jobs.opennash.com/privacy/) - [Terms](https://jobs.opennash.com/terms/) © 2026 OpenNash, Inc. Company names and public job postings belong to their respective owners. Employers control source availability and application decisions.