Amazon

Software Development Engineer, Amazon Cryptographic Libraries

Amazon$143K — $194K *
Information Technology
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • 3+ years of professional software development experience
  • Bachelor's degree in a related field or equivalent
  • Understanding of system performance and memory management
  • Familiarity with full software development life cycle practices
  • Proficiency in a modern programming language (e.g., Rust, Python, Java, C, C++, C#)

Responsibilities

  • Design and maintain cryptographic functionality in AWS-LC and related libraries
  • Own the full feature development life cycle from design to operational support
  • Build AI tools for improving open-source library security
  • Enhance code quality and test coverage of foundational security code
  • Collaborate with applied scientists and security engineers for safe deployment

Benefits

  • Comprehensive health insurance (medical, dental, vision)
  • 401(k) matching
  • Paid time off
  • Parental leave
  • Support for adoption and surrogacy
Full 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 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 generative-AI tooling to open-source library security, including automated CVE backports, vulnerability triage, and code review at scale.

- Raise the bar on code quality, test coverage, and engineering practices for a security-critical, widely deployed codebase.

- Collaborate with Applied Scientists, security engineers, and partner teams (AWS services and open-source consumers) to land changes safely at scale.

A day in the life

You pick up a feature or fix that will ship into a library running on effectively every AWS service. You work through the design with teammates, write and test the implementation, and put it through rigorous code review. Alongside feature work, you improve the automation that keeps our many release branches secure, including AI-assisted tooling for backporting fixes and triaging vulnerabilities. Your changes are validated for FIPS and backed by formal verification, so you operate at a correctness bar most engineers never encounter.

BASIC QUALIFICATIONS

- 3+ years of non-internship professional software development experience

- Bachelor's degree or equivalent

- Knowledge of system performance, memory management, and parallel computing principles

- Knowledge of professional software engineering & best practices for full software development life cycle, including coding standards, software architectures, code reviews, source control management, continuous deployments, testing, and operational excellence

PREFERRED QUALIFICATIONS

- 3+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience

- Bachelor's degree in computer science or equivalent

- Proficiency in at least one modern programming language such as Rust, Python, Java, C, C++, or C# including object-oriented design

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 https://amazon.jobs/en/benefits.

USA, WA, Seattle - 143,700.00 - 194,400.00 USD annually

About Amazon

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Amazon Careers

Joining Amazon presents an unparalleled opportunity to become part of a vibrant team pushing the boundaries of innovation and growth in the global marketplace. As a leader in e-commerce, technology, and logistics, Amazon offers a variety of job opportunities that cater to a range of skills and professional interests. Work You’ll Do At Amazon, every day is an opportunity to collaborate with the brightest minds in technology and business to redefine what’s possible. Whether you’re interested in software development, marketing, human resources, or customer service, Amazon has a position waiting for you. Transform the way the world shops and innovates with our diverse and inclusive team. Amazon is not just a company; it’s a community where you can drive real change and contribute to projects impacting millions globally. Lead with Innovation and Leadership Amazon is the perfect place to enhance your leadership and innovation skills. Our culture encourages pushing the envelope and imagining the unimaginable. Here, you will lead projects that challenge the status quo and define new industry standards. Work with a team that values diversity and is committed to creating an inclusive environment. Our leadership is focused on harnessing the collective power of unique perspectives to foster growth and innovation. Explore Amazon’s Employment Benefits Amazon’s commitment to its employees extends beyond just career growth. We offer competitive benefits, including health care, parental leave, and diversity training, ensuring that our team not only excels professionally but also enjoys well-being and security. Internship and Networking Opportunities Start your career with an Amazon internship and gain hands-on experience that matters. Our internships provide a gateway to full-time employment and an opportunity to network with professionals across various sectors of the company. Future-Proof Your Career With Amazon, your career path is filled with numerous opportunities for advancement. Our learning and development programs are designed to nurture your professional growth and keep you at the forefront of industry trends. Stay Connected Join Our Team Discover the job opportunities at Amazon that match your skills and interests. We are constantly on the lookout for passionate, curious, and innovative team players ready to make a difference. Keep Up to Date Stay ahead with career tips, insider perspectives, and industry-leading insights you can put to use today—all from the people who work here. Job Alert Emails Customize your subscription to receive job alerts, the latest news, and insider tips tailored to your preferences. Explore the exciting and rewarding career opportunities that await at Amazon. Amazon is more than just a company—it’s a platform for building a promising future. Whether you’re starting or looking to advance your career, Amazon offers the resources, support, and network you need to succeed. Join us, and be a part of our continuing mission to be Earth's most customer-centric company.
Learn more about Amazon
Size
1,608 employees
Market Cap
$832.6 billion
Industry
Net Income
$21.3 billion
Founded
1994
5 Year Trend
+28.1%
Revenue
$386 billion
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