Senior Network Security Engineer – Leo Infrastructure

Amazon; Bellevue (WA); On-site; USD 178,000 - 227,000; Full time

Job summary

Amazon Leo seeks a senior security engineer to own network security across Leo's diverse environments — corporate IT, manufacturing OT/SCADA, lab, launch operations, and global ground stations. You will define security standards and drive detection coverage from concept to production.

You will partner with infrastructure and site operations teams to implement mitigations, translate risks into actionable findings, and contribute to incident response and post-incident improvements.

Qualifications

• 5+ years of scripting, programming, and security code review in a non-internship role
• 5+ years of troubleshooting systems issues, analyzing logs, or automating basic tasks using command line tools
• Knowledge of networking protocols such as HTTP, DNS and TCP/IP
• Bachelor's degree in a STEM field or IT Security experience
• Knowledge of industry-based security vulnerabilities and remediation techniques
• Experience with network security, including one or more of: network architecture review, segmentation, firewall/ACL management, network detection, or network incident response

Responsibilities

• Analyze and deploy detections to production networks, leveraging automation and tooling to identify vulnerabilities and surface security events
• Conduct threat modeling for network deployments across environments and locations, including OT/ICS topologies
• Build and maintain a network security assessment framework that holds each deployment type to a consistent bar
• Translate network and OT/ICS security risks into findings with clear severity and business impact; communicate them to security leadership and drive mitigations
• Develop and maintain security documentation: network security standards, assessment runbooks, and detection coverage maps
• Partner with infrastructure and site operations teams to implement network security mitigations and hardening measures
• Contribute to incident response when network-based threats are detected, including containment, investigation, and post-incident improvement

Skills

Scripting & security tooling

Network security

Threat modeling

Incident response

Security architecture

Automation & tooling

Education

Bachelor's degree in STEM

Tools

AWS networking services

VPC

GuardDuty

CloudTrail

Transit Gateway

Job description

Amazon Leo seeks a senior security engineer to own network security across Leo's diverse environments — corporate IT, manufacturing OT/SCADA, lab, launch operations, and global ground stations. You will define security standards and drive detection coverage from concept to production.

You will partner with infrastructure and site operations teams to implement mitigations, translate risks into actionable findings, and contribute to incident response and post-incident improvements.