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Added 7 mins ago
DevOps Engineer - $20K Sign On Bonus - 30977
Huntington Ingalls Industries
Augusta, GA
…development and deployment, with expertise in cloud-based services, software and systems engineering, cyber capabilities, and data science. Enlighten provides continued innovation and…
Added 7 mins ago
DevOps Engineer - $20K Sign On Bonus - 30971
Huntington Ingalls Industries
Augusta, GA
…development and deployment, with expertise in cloud-based services, software and systems engineering, cyber capabilities, and data science. Enlighten provides continued innovation and…
Added 7 mins ago
DevOps Engineer - $20K Sign On Bonus - 30969
Huntington Ingalls Industries
Augusta, GA
…development and deployment, with expertise in cloud-based services, software and systems engineering, cyber capabilities, and data science. Enlighten provides continued innovation and…
Added 7 mins ago
Azure Architect - Project -Software Engineer III
Deloitte
Atlanta, GA
As a Project - Software Engineer III on the AI & Engineering team, you will be responsible for:
Added 8 mins ago
Senior Full-Stack AI Engineer
CGI Technologies and Solutions, Inc.
Atlanta, GA
CGI is seeking a Senior Full-Stack AI Engineer to join our dynamic team and help design, build, and deliver scalable, AI-powered applications. In this role, you’ll work across the…
Added 11 mins ago
IG
Sr DevOps Engineer
Insight Global
Charlotte, NC
- From $65.06 USD / hour
Experience integrating automated testing, code coverage, SonarQube quality gates, static analysis, and security scanning into delivery pipelines.
Added 13 mins ago
WW
VSE Systems SME
World Wide Technology Holding, LLC
San Diego, CA
- $160,000 to $210,000 USD / year
Experience with commercial security products from vendors like Cisco, Palo Alto, or Juniper, and familiarity with compliance frameworks (e.g., NIST, FIPS 140-2).
Added 16 mins ago
P
Embedded S/W Engineer
Procom
Annapolis, MD
- $135,000 USD / year
We are seeking an Embedded Software Engineer to join the research team. The mission of the research team is to discover how vehicle systems store and protect data and to develop extraction…
Added 17 mins ago
Senior Staff Engineering Program Manager (EPM)
Northrop Grumman
Dulles, VA · McLean, VA · Dulles · McLean
Lead IPT Leads and Subsystem Leads over various disciplines (Systems, Hardware, Software, Integration and Test, Production, etc) through all phases: proposal, design, build, delivery
Added 17 mins ago
Mission Autonomy Software Developer
Northrop Grumman
El Segundo, CA · El Segundo
Northrop Grumman Aeronautics Systems has an opening for a Software Engineer or Principal Software Engineer position to join our team of qualified, diverse individuals onsite in El Segundo,…
Added 20 mins ago
IT Operations Engineer I
Piedmont HealthCare PA
Statesville, NC
Individuals within the IT Operations Engineer role have the primary responsibility of providing support and service to users of PHC hardware and software systems. The IT Operations Engineer…
Added 20 mins ago
Underwater Sensors Engineer Co-op
The MITRE Corporation
Bedford, MA
…improves lives. This is where your skills strengthen national security, cybersecurity, health, transportation, and citizen services. We’re a nonprofit engineering, applied research, and…
Added 21 mins ago
Sr. Automation Test Engineer
Itility LLC
United States
ITility is seeking a mission-focused Senior Automation Test Engineer to support DoD application modernization. The role supports AWS-hosted applications built with Ruby and TypeScript and…
Added 21 mins ago
Lead Software Systems Engineer
Itility LLC
United States
ITility is seeking a highly specialized Lead Software Systems Engineer to support the Defense Logistics Agency. You will provide top-level technical expertise, including performing in-depth…
Added 23 mins ago
MS
Systems Engineer
Mt. San Jacinto College
Temecula, CA
- $6,856.34 to $10,068.77 USD / month
We have an exciting opportunity for a Systems Engineer position located at our campus in Temecula, CA .
Added 25 mins ago
Diego Garcia: Senior Network Engineer
Kellogg Brown & Root Services International, Inc
United States
KBR is seeking a highly skilled Senior Network Engineer to join our team in support of mission-critical network infrastructure operations. This role involves hands-on network design,…
Added 25 mins ago
Software Engineer III, Infrastructure, Google Cloud Platforms
Google
Sunnyvale, CA
Google's software engineers develop the next-generation technologies that change how billions of users connect, explore, and interact with information and one another. Our products need to…
Added 25 mins ago
Staff Software Engineer, Ads Safety Format Enablement
Google
Mountain View, CA
Google's software engineers develop the next-generation technologies that change how billions of users connect, explore, and interact with information and one another. Our products need to…
Added 27 mins ago
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Data Science Engineer
Bright Vision Technologies
Frisco / North Dallas, TX
- $115,000 to $165,000 USD / year
Bright Vision Technologies is a technology consulting and software development company delivering cloud, AI, data, and enterprise solutions across the United States. This is an opportunity…
Added 27 mins ago
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Data Quality Engineer
Bright Vision Technologies
Fremont / East Bay, CA
- $115,000 to $165,000 USD / year
Bright Vision Technologies is a technology consulting and software development company delivering cloud, AI, data, and enterprise solutions across the United States. This is an opportunity…
Added 29 mins ago
Cyber Systems Engineer 3/4
Northrop Grumman
Edwards AFB, CA
Perform both Network & Security functions necessary to operate multiple Software Development environments at various classification levels.
Added 29 mins ago
Reliability Systems Engineer - Level 2 (AHT)
Northrop Grumman
Redondo Beach, CA
Northrop Grumman’s Space Systems Sector is seeking a Reliability Systems Engineer – Level 2 to join our team in Redondo Beach, CA.
Added 30 mins ago
AI Architect
CGI Technologies and Solutions, Inc.
Montreal, CA
Helping data engineer and prompt engineer the LLM solutions end-to-end to enhance end user experience
Added 30 mins ago
Junior DevOps Specialist
CGI Technologies and Solutions, Inc.
Saguenay, CA
As a DevOps Engineer on our team, you will drive key technical initiatives across the business, bridging the gap between software development and infrastructure operations. This role…
Added 30 mins ago
Cybersecurity Architect
CGI Technologies and Solutions, Inc.
Calgary, CA · Toronto, CA
Provide security architecture guidance throughout the Software Development Lifecycle (SDLC).

Closed listing

Amazon

Sr Security Engineer, Leo Security

Seattle, WA, United States

This opening has closed.

The original listing is kept below for reference.

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Job details

Posting language: English
Posted: Aug 15, 2026

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Original job description

Archived listing. The details below describe a past opening.

Description

Amazon Leo is a constellation of Low Earth Orbit satellites that will provide low-latency, high-speed broadband network connectivity to unserved and underserved communities around the world.

We are looking for a senior security engineer to join the founding cohort of the Engineering and R&D team within Leo Infrastructure and IP Security. The team defends the manufacturing lines, launch sites, and global ground infrastructure behind the constellation from the most sophisticated threat actors on the planet. The team builds a neurosymbolic reasoning platform: large language model agents combined with a knowledge graph and real-time asset state store that ground every conclusion in verifiable fact, so every automated decision is auditable. You will be the security owner for that platform. A system that can triage security events, execute containment, and act on physical security is itself a high-value target, and this role exists so the team that secures Leo does not ship its own unowned risk. This is a hands-on role for a technical contributor with deep expertise in offensive security who understands how to use AI on both sides: directing agents to test Leo's defenses the way an adversary would, and hardening the platform's own agents against the same techniques.

#### Export Control Requirement

Due to applicable export control laws and regulations, candidates must be a U.S. citizen.

Key job responsibilities

You will be the single accountable security owner for every system the team builds and operates, from the agent platform and detection pipeline to the data plane and self-service workflows. You will lead threat modeling and secure-design review on each system before it takes autonomous action, thinking like an adversary to find the weaknesses in agent tool access, prompt and data injection paths, and containment authority before someone else does. You will design the privileged-access and insider-risk controls for systems that hold the keys to Leo physical security: the who-watches-the-watchers guarantee. You will translate threat intelligence into the adversary behaviors that drive the team's models and detections, partnering with applied scientists on what to detect and with software engineers on how the platform defends itself. You will use AI to scale both offense and defense: directing the platform's agents to run offensive validation against Leo's infrastructure and against the platform itself, and turning what the offense finds into detections, guardrails, and controls. You will drive every finding, whether from your own testing, penetration tests, or red-team engagements, to closure, with security gates built into the team's own delivery cadence rather than bolted on after.

A day in the life

One morning you might threat model a new agent capability before it graduates to automated execution, mapping what an adversary could do with its tools and where its authority must be constrained. That afternoon you could be red-teaming the platform's reasoning layer, crafting inputs that try to steer an agent into an action it should refuse. The next day you might take fresh threat intelligence, distill it into the adversary behaviors the scientists should model next, then review the access boundaries and audit evidence on a new data source before it is ingested. You will communicate security posture, risks, and strategic priorities to senior leadership with clarity and precision. You will question every trust relationship the platform depends on, hold the security bar steady against delivery pressure, and treat the team's own systems with the same adversarial rigor the team applies to everything else.

About the team

Leo Infrastructure and IP Security protects the people, facilities, hardware, and supply chain behind a global satellite constellation. The Engineering and R&D team within this organization builds the platforms and tooling the security pillar teams operate on, moving security operations from manual triage to correlation-based detection, automated response, and agentic AI. The team is composed of applied scientists, software engineers, and security engineers working across physical and digital security domains.

#### Inclusive Team Culture

In Amazon 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.

Basic Qualifications

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 progressive work within a software security team or related operating environment
Experience architecting, securing, and operating Amazon Web Services
Bachelor's degree in a STEM field (Science, Technology, Engineering, Mathematics), or 5+ years of scripting, programming, or security code review in a common language, such as Python, Java or C++ experience

•

5+ years of non-internship experience in troubleshooting systems issues, analyzing logs, automating complex tasks using command line tools, and identifying security issues, risks, and developing mitigation plans

•

Experience with offensive security, including penetration testing, red teaming, or adversarial testing of production systems

Preferred Qualifications

Experience conveying complex technical concepts to both technical and business audiences

•

Understanding of threat actor tradecraft and ability to emulate sophisticated attack techniques

•

Experience with AI/ML security, including threats to AI systems, adversarial machine learning, prompt injection, or AI supply chain security

•

Experience applying AI to security work, including agentic tooling for offensive testing, detection engineering, or automated response

•

Experience with Red Team operations, threat-based assessments, or security research programs

•

Track record of building security tools or automation that scales across organizations

•

Experience designing privileged-access and insider-risk controls for high-consequence systems

•

Experience with security in regulated or export-controlled environments, including data-handling boundaries and audit evidence

•

Experience translating threat intelligence into detections, adversary emulation, or threat hunting

•

Contributions to security research community through publications, presentations, or open-source tools

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

Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you’re applying in isn’t listed, please contact your Recruiting Partner.

The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life & AD&D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave. Learn more about our benefits at https://amazon.jobs/en/benefits .

USA, VA, Arlington - 178,400.00 - 226,700.00 USD annually

USA, VA, Herndon - 178,400.00 - 226,700.00 USD annually

USA, WA, Seattle - 178,400.00 - 226,700.00 USD annually

About employer

More about this job

Skills

Supply chain management
Software development
System administration
Python
Oracle Java
C++
Troubleshooting
Penetration testing
ML
Machine learning
Research
Presentation skills
Recruitment
Mental health

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