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Description

Amazon GuardDuty is a customer facing threat detection service that was built to protect applications and services running in AWS. The service processes trillions of events and applies advanced analytics and machine learning to detect threats. https://aws.amazon.com/guardduty/

The Amazon GuardDuty team is looking for a a highly skilled and innovative senior software engineer to help build the future of the service. You will work closely with applied scientists with Math PhDs, and security researchers to build advanced analytics and machine learning systems at AWS scale. Our mission is to develop massively scalable, globally distributed detection systems that protect AWS customers from evolving threats and strengthen their security and compliance posture.

Key job responsibilities
- Design, build, and operate large-scale, distributed security detection systems.
- Collaborate with applied scientists and security researchers to transform research outcomes—such as anomaly detection methods and large language model (LLM)–based approaches—into scalable, production-ready systems.
- Drive the full software development lifecycle, including scoping, planning, design, implementation, testing, documentation, deployment, and operational support.
- Conduct design and code reviews, providing feedback on architecture, scalability, performance, and integration.
- Operate in a highly available, customer-facing environment with on-call responsibilities (typically one week every two months), and contribute to building resilient systems that minimize operational load.
- Participate in root cause analysis and long-term improvements to ensure operational excellence and reduce recurring issues.

About the team
Our team is dedicated to supporting new team members. Our team has a broad mix of experience levels and Amazon tenures, and we’re building an environment that celebrates knowledge sharing and mentorship. Our principal engineers truly enjoy mentoring more junior engineers and engineers from non-traditional backgrounds through one-on-one mentoring and thorough code reviews. We care about your career growth. We try to assign projects and tasks 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.