Sr. SDE, Amazon Email Services

We are looking for a seasoned Senior Software Development Engineer to join our Email Infrastructure & Platform Engineering this role you will be a technical leader driving the design development and evolution of large-scale distributed systems that power Amazons global email infrastructure. You will work at the intersection of email services AI-powered automation and platform reliability contributing to one of Amazons most critical internal infrastructure transformation initiatives.

You will collaborate with cross-functional teams across Email Platform Security IT Services and AI/ML to deliver systems that are secure scalable and operationally excellent.

Key job responsibilities
Lead the design and development of highly available fault-tolerant distributed systems supporting Amazons email routing email distribution management and email security infrastructure

Drive technical strategy and architecture decisions for large-scale service migrations and deprecations (e.g. legacy email systems to modern API-driven platforms)

Build and integrate AI-powered tooling and workflows to improve operational efficiency including on-call automation anomaly detection and intelligent routing

Develop and maintain robust APIs and libraries consumed by internal teams ensuring reliability observability and ease of use

Partner with Security Compliance and Platform teams to implement perimeter security re-architecture for inbound and outbound email flows

Define and enforce engineering best practices including spec-driven development code quality standards and operational excellence

Mentor and grow junior engineers providing technical guidance code reviews and career development support

Contribute to org-wide technical roadmaps and represent the team in cross-organizational design reviews and planning

A day in the life
As an Sr. SDE on the AmazES Intelligence and Routing team no two days look exactly the same but every day is grounded in high-impact engineering work that keeps Amazons corporate email infrastructure running securely and intelligently for over 1 million Amazonians.

You spend a meaningful portion of your time designing and building writing production code authoring technical specs and making architectural decisions across our distributed email routing and API services. You invest equally in cross-team collaboration partnering with Amazon Security IT Services and AI teams to align on direction resolve ambiguity and drive complex initiatives forward. A significant part of your role is operational ownership you care deeply about the health of the systems you build improving observability responding to incidents with rigor and raising the reliability bar over time. And you consistently make time for people and culture mentoring junior engineers championing spec-driven development and helping shape a team environment that attracts and retains engineers who want to do the best work of their careers.

About the team
AmazES Intelligence and Routing owns the intelligence and routing layer of Amazons corporate email platform the systems that classify secure and deliver email reliably at Amazon scale. We build and operate Farcaster SEAL BEAR ELMO and many others working at the intersection of distributed infrastructure email security and applied AI. We value technical depth spec-driven development and operational excellence and were transforming email into an intelligent programmable platform for 1M Amazonians.

If youre excited about building systems that matter working on hard problems at Amazon scale and growing in an environment that rewards both technical excellence and customer obsession wed love to hear from you.

- Experience as a mentor tech lead or leading an engineering team
- Experience leading the architecture and design (architecture design patterns reliability and scaling) of new and current systems
- Experience designing building operating and managing large-scale distributed systems or web services
- Knowledge of concepts like system architecture optimization system dynamics system analysis statistical analysis reliability analysis and decision making
- Experience with AWS services or other cloud offerings
- Proficiency in one or more of: Java Python Go or C

- Bachelors degree in computer science or equivalent
- Experience with full software development life cycle including coding standards code reviews source control management build processes testing and operations
- Experience working with or evaluating AI systems
- Knowledge of security practices like spam and phishing
- Experience implementing cloud services including migrations and modernization projects or similar
- Experience working across teams and influencing teams that are not your own
- Experience in operational excellence security compliance and distributed systems resiliency
- Experience with email protocols and infrastructure (SMTP DKIM SPF DMARC MTA configuration email routing)

Amazon is an equal opportunities employer. We believe passionately that employing a diverse workforce is central to our success. We make recruiting decisions based on your experience and skills. We value your passion to discover invent simplify and build. Protecting your privacy and the security of your data is a longstanding top priority for Amazon. Please consult our Privacy Notice ( to know more about how we collect use and transfer the personal data of our candidates.

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

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