Senior Software Development Engineer, Engagement Security

Amazon

Amazon

Software Engineering

Herndon, VA, USA

Posted on May 19, 2026

Description

AWS Engagement Security (EngSec) enables AWS colleagues, partners, and contractors to meet AWS's high security bar when working with the public and our customers. We seek a Senior Software Development Engineer (SDE) to build and operate large-scale, distributed systems that power internal security services. You will lead the design, implementation, and operation of infrastructure and tooling that enable AWS teams to deliver for our customers while meeting our strict security requirements. This role includes supporting AI/ML workloads, including Large Language Model (LLM) applications.

As an SDE, you will work closely with security engineers, machine learning engineers, project managers, and other SDEs. Your solutions will reduce the effort to deliver secure results, speed up and simplify security activities like code scanning and compliance analysis, and collect data about security to help AWS leaders make informed decisions.

Key job responsibilities
- Design, build, and maintain reliable, scalable infrastructure that leverages AI to deliver faster, more resilient services to customers.
- Develop automation tools and frameworks to eliminate manual operational work
- Mentor one or more developers on the team
- Own the operational health of services, including monitoring, alerting, and incident response
- Participate in on-call rotation to ensure 24/7 service availability
- Collaborate with security and ML teams to improve system architecture and operational excellence

A day in the life
Software Development Engineers embody Amazon's Leadership Principles, particularly:
- Ownership: Design for long-term operational health
- Dive Deep: Leverage the AWS platform to its fullest
- Invent and Simplify: Innovate ways to reduce operational complexity
- Learn and Be Curious: Stay current with emerging technologies including AI/ML and LLMs
- Are Right, A Lot: We uphold the security bar for a large number of diverse global teams. We must be right.
- This role works from the office
- This role participates in on-call rotation

About the team
Diverse Experiences
AWS Security values diverse experiences. We encourage you to apply even if you do not meet all of the qualifications and skills listed in the job description. If your career hasn’t followed a traditional path, don’t let it stop you from applying.

Why AWS Security?
Security is central to how AWS maintains customer trust and delivers delightful customer experiences. We are responsible for maintaining a high security bar across all of AWS's products and services.

Inclusive Team Culture
In AWS Security, it’s in our nature to learn and be curious. Ongoing DEI events and learning experiences inspire us to continue learning and to embrace our uniqueness. Addressing the toughest security challenges requires that we seek out and celebrate a diversity of ideas, perspectives, and voices.

Training & Career Growth
We’re continuously raising our performance bar as we strive to become Earth’s Best Employer. That’s why you’ll find endless knowledge-sharing, training, and other career-advancing resources here to help you develop into a better-rounded professional.

Work/Life Balance
We value work-life harmony. Achieving success at work should never come at the expense of sacrifices at home, which is why flexible work hours and arrangements are part of our culture. When we feel supported in the workplace and at home, there’s nothing we can’t achieve.