Amazon

Software Development Engineer, Identity Services

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

Qualifications

  • 3+ years of experience in designing or architecting systems with a focus on reliability and scalability
  • Proficient in debugging, profiling, and implementing best practices in large-scale software systems
  • Experience with at least one programming language in a professional setting

Responsibilities

  • Design and implement secure authentication and authorization systems
  • Build and maintain high-performance validation services with stringent latency requirements
  • Develop intelligent authentication systems to enhance user experience while maintaining security
  • Implement security features such as token binding and risk evaluation
  • Collaborate with security teams to prevent account takeovers
  • Manage the token lifecycle including creation, validation, and invalidation

Benefits

  • Comprehensive health insurance including medical, dental, and vision
  • 401(k) plan with matching contributions
  • Paid time off and parental leave
  • Adoption and surrogacy reimbursement coverage
  • Access to mental health support and flexible spending accounts
Full Job Description
We're seeking a Software Engineer to join our Identity Services team, responsible for authentication and session management systems that serve millions of customers across web, mobile, and device platforms.

Key job responsibilities

* Design and implement secure authentication and authorization systems using bearer token schemes and session management protocols

* Build and maintain high-performance validation services with strict latency requirements (sub-10ms response times)

* Develop intelligent authentication systems that balance security with user experience, reducing unnecessary re-authentication friction

* Implement security features including token binding, risk evaluation, and fraud detection mechanisms

* Collaborate with security teams to detect and prevent account takeover attempts and cookie theft

* Work on token lifecycle management including creation, validation, exchange, and invalidation across multiple platforms

About the team

AuthZero is the team responsible for authentication and session management across Amazon's platform. We own critical services including Aztec Service for token management and work closely with the Session Service team. Our systems handle token creation, validation, exchange, and invalidation for web, mobile apps, devices, and Login with Amazon (LWA). We're at the forefront of reducing authentication friction through Intelligent Authentication while maintaining robust security. The team tackles complex challenges including cookie theft detection, risk-based authentication, and building scalable systems that process authentication requests with sub-10ms latency at massive scale.

BASIC QUALIFICATIONS

- 3+ years of non-internship design or architecture (design patterns, reliability and scaling) of new and existing systems experience

- Experience debugging, profiling, and implementing best software engineering practices in large-scale systems

- Experience programming with at least one software programming language, or experience (non-internship) in professional software development

PREFERRED QUALIFICATIONS

- Knowledge of security technology and concepts (Authentication, Authorization, Single sign-on, Cryptography, etc.)

- Experience working with high-availability, distributed systems and services

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

Audible is a provider of spoken audio information and entertainment , on the Internet. They provide premium spoken audio content, such as audio versions of books and newspapers and radio programs, that is delivered over the Internet and played back on personal computers and hand-held electronic devices. The Audible service allows consumers to purchase and download their content from their Website, store it in digital files and play it back on personal computers and electronic devices. More than 15,000 hours of audio content are available on their Web site, including audio versions of books, periodicals and radio programs. Several manufacturers have agreed to support and promote the playback of their content on their hand-held audio-enabled electronic devices.

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
NASDAQ

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