Senior Software Development Engineer AWS Cryptography, Transport libraries

The Transport Libraries team within AWS Cryptography builds and maintains open-source TLS and QUIC libraries (s2n-tls s2n-quic) that protect data in transit across all of AWS. Were looking for an experienced software developer passionate about practical cryptography open source and building at scale. Youll work on post-quantum cryptography leverage GenAI to accelerate secure transitions and help ensure every byte moving in and out of the cloud is protected. If youre excited about implementing cryptography that secures millions of connections and want to contribute to some of the most security-critical open-source libraries in the industry wed love to talk.


Key job responsibilities
Own the full software development lifecycle defining prioritizing designing building and testing new features for AWS Cryptography.
Deliver foundational cryptographic libraries integrated across all AWS front-door services.
Engage internal and external customers to identify gaps in data-in-transit protection and translate those into new features and products.
Build solutions at scale to protect cloud workloads against harvest now decrypt later (HNDL) threats.
Leverage GenAI technologies to safely and efficiently transition AWS services to post-quantum cryptography.

About the team
- Here at AWS we embrace our differences. We are committed to furthering our culture of inclusion. We have ten employee-led affinity groups reaching 40000 employees in over 190 chapters globally. We have innovative benefit offerings and host annual and ongoing learning experiences including our Conversations on Race and Ethnicity (CORE) and AmazeCon (diversity) conferences. Amazons culture of inclusion is reinforced within our 16 Leadership Principles which remind team members to seek diverse perspectives learn and be curious and earn trust.

- Our team puts a high value on work-live balance. It isnt about how many hours you spend at home or at work; its about the flow you establish that brings energy to both parts of your life. We believe striking the right balance between your personal and professional life is critical to life-long happiness and fulfillment. We offer flexibility in working hours and encourage you to find your own balance between your work and personal lives.

- Our team is dedicated to supporting new members. We have a broad mix of experience levels and tenures and were building an environment that celebrates knowledge sharing and mentorship. Our senior members enjoy one-on-one mentoring and thorough but kind code reviews. We care about your career growth and strive to assign projects based on what will help each team member develop into a better-rounded engineer and enable them to take on more complex tasks in the future.

- 5 years of non-internship professional software development experience
- 5 years of programming with at least one software programming language experience
- 5 years of leading design or architecture (design patterns reliability and scaling) of new and existing systems experience
- Experience as a mentor tech lead or leading an engineering team

- 5 years of full software development life cycle including coding standards code reviews source control management build processes testing and operations experience
- Bachelors degree in computer science or equivalent

Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status disability or other legally protected status.

Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process including support for the interview or onboarding process please visit for more information. If the country/region youre applying in isnt listed please contact your Recruiting Partner.

The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience qualifications and location. Amazon also offers comprehensive benefits including health insurance (medical dental vision prescription Basic Life & AD&D insurance and option for Supplemental life plans EAP Mental Health Support Medical Advice Line Flexible Spending Accounts Adoption and Surrogacy Reimbursement coverage) 401(k) matching paid time off and parental leave. Learn more about our benefits at WA Seattle - 168100.00 - 227400.00 USD annually