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Software Development Engineer, Amazon Cryptographic Libraries

Company

Amazon

Location

Seattle, WA

Posted

June 29, 2026

Position Overview

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 libcrypto. As a Software Development Engineer you will shape the cryptographic implementations that run across all of Amazon and a growing number of open-source consumers. You will also help pioneer how we apply generative AI to open-source library security. Few teams let an SDE ship code this foundational: it runs on effectively every AWS service, ships to open-source partners, and has to be both correct and fast.

Key job responsibilities
- Design, implement, test, and maintain cryptographic functionality in AWS-LC and related libraries used across Amazon and by external open-source consumers.
- Own features end to end, from design through code review, testing, release, and operational support, on a codebase where correctness is non-negotiable.
- Build and apply generativ...

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