Sr Security Engineer, Network, Leo Security

About the role

Amazon Leo is a constellation of Low Earth Orbit satellites providing low-latency, high-speed broadband network connectivity to unserved and underserved communities. We are seeking a senior security engineer to join the Leo Infrastructure and IP Security team. This team defends against sophisticated threat actors protecting the manufacturing lines, launch sites, and global ground infrastructure.

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 — including OT/SCADA environments — 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.

Requirements

• 5+ years of scripting, programming, and security code review in a common programming language.
• 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 (Science, Technology, Engineering, Mathematics), or relevant experience in IT Security.
• Experience with network security, including one or more of: network architecture review, segmentation, firewall/ACL management, network detection, or network incident response.

Qualifications

• Experience with security in service-oriented architectures/microservices and web services.
• 2+ years of any combination of the following: threat modeling experience, secure coding, identity management and authentication, software development, cryptography, system administration and network security experience.
• Experience in security operations, risk management, and incident response.
• Experience with OT/ICS/SCADA network security, including segmentation between IT and OT environments.
• Experience with network detection and response (NDR) tools, network telemetry analysis, or packet-level investigation.
• Experience with network security in manufacturing, critical infrastructure, or industrial environments.
• Experience with AWS networking and security services (VPC, Security Groups, Transit Gateway, GuardDuty, CloudTrail).

Benefits

Amazon offers comprehensive benefits including health insurance, retirement plans, paid time off, parental leave, and more. For details, visit https://amazon.jobs/en/benefits.

Pay

The base salary range for this position is listed below. Final compensation will be determined based on factors including experience, qualifications, and location.

Schedule

Flexible work hours and arrangements are part of our culture, allowing you to achieve success without sacrificing work-life balance.

Export Control Requirement

Candidates must be a U.S. citizen or national, U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum.