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Added 1 min ago
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IT Systems Engineer - Secret clearance needed
Tlingit Haida Tribal Business Corporation
Washington, DC
- $97,000 to $107,000 USD / year
We are seeking an experienced Senior Network Engineer to support mission-critical, enterprise-scale network infrastructure at Joint Base Andrews (JBA). In this role, you will be responsible…
Added 2 mins ago
Wood Treating Operator
Stella-Jones Corporation
Arlington, WA
…on the Toronto Stock Exchange, Stella-Jones operates a vast network of facilities that employs more than 3,000 employees across the United States and Canada. Built on strong foundations…
Added 3 mins ago
Laser Communication Engineer
The Aerospace Corporation
El Segundo, CA
…sensors, radar, artificial intelligence (AI), and advanced data network domains. We boldly advance technology through our research and development and then forward to demonstration and…
Added 3 mins ago
FM
Cybersecurity Architect
Fresenius Medical Care
Remote, United States
- $137,000 to $229,000 USD / year
Serve as a security expert in application development, database design, network and/or platform (operating system) efforts, helping project teams comply with enterprise and security…
Added 4 mins ago
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Senior Field Service Engineer
Eurofins
North Brunswick Township, NJ
- $100,000 to $130,000 USD / year
The Eurofins network of companies is the global leader in food, environment, pharmaceutical and cosmetic product testing and in agroscience Contract Research Organization services. It is…
Added 4 mins ago
Senior Logistics Engineer
JACOBSON TRANSPORTATION COMPANY
Naperville, IL · Southfield, MI
…center, we're revolutionizing the industry with our massive network and commitment to finding solutions for every challenge. We create more efficient ways for shippers and carriers to…
Added 4 mins ago
Geotechnical Engineer - Spring 2027 Graduates
Civil & Environmental Consultants, Inc.
Pittsburgh (Moon Township), PA
As a Civil Engineer for Civil & Environmental Consultants Inc. (CEC) Geotechnical Group in our Pittsburgh, PA office, you'll have the opportunity to work on a wide variety of projects and…
Added 4 mins ago
IT Support Engineer
DataServ / xFact
Westlake, OH
The IT Support Engineer is responsible for delivering technical support to both internal and external customers. This role serves as a trusted technical resource, splitting time between…
Added 5 mins ago
Senior Software Quality Assurance Engineer and Tester
Accenture Federal Services
Augusta, GA
AFS is searching for a Senior Software Quality Assurance Engineer and Tester to develop and execute software test plans to identify software defects and determine their root causes.
Added 5 mins ago
Associate Gear Engineer
Dana Incorporated
Maumee, OH
…aftermarket with local product and service support through a network of nearly 100 engineering, manufacturing, and distribution…
Added 5 mins ago
Maintenance Engineer- Industrial
Dana Incorporated
Dry Ridge, KY
…aftermarket with local product and service support through a network of nearly 100 engineering, manufacturing, and distribution…
Added 6 mins ago
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Principal Customer Sucess Engineer
NetScout
Remote, United States
- $94,500 to $130,000 USD / year
NETSCOUT is continuing to grow & our Services Team is expanding! We are currently seeking a Customer Success Engineer to work in this fast-paced technology environment with world-class…
Added 6 mins ago
Control System Engineer
Arcadis
White Plains, NY · NY · White Plains · New York
This is an exciting opportunity for an I&C Systems Engineer with experience in industrial control systems, process automation, and SCADA system integration and networking to join our team.…
Added 6 mins ago
Senior Federal Program Manager: US West
Arcadis
San Francisco, CA · San Francisco
…stewardship to expand Arcadis’ footprint with USACE/NavFac/AF Civil Engineer Center (AFCEC)/Federal clients, while ensuring high-quality delivery, specifically in the US West but also the…
Added 6 mins ago
Principal Network Engineer
Global Enterprise Services, LLC
Fort Meade, MD
GES is seeking a Principal Network Engineer – Wireless to lead engineering, deployment, and modernization of a large-scale, geographically distributed enterprise wireless network supporting…
Added 6 mins ago
Principal Cloud Engineer
Global Enterprise Services, LLC
Fort Meade, MD
…of applications from on-premise to the cloud and zero-trust network initiatives. Engineering efforts will include design, deployment, test, and migration of the solutions the candidate…
Added 6 mins ago
Principal ScienceLogic Skylar 1/SL1 Engineer
Global Enterprise Services, LLC
Fort Meade, MD
…Linux systems, cybersecurity, and monitoring architecture. The engineer will work closely with cloud, network, cybersecurity, systems engineering, and site operations teams to establish…
Added 6 mins ago
Network Engineer Senior
Global Enterprise Services, LLC
Fort Belvoir, VA
GES is seeking a Senior Network Engineer to support the design, implementation, modernization, and sustainment of enterprise network infrastructure within a fast-paced Department of Defense…
Added 6 mins ago
Senior Storage Engineer
Global Enterprise Services, LLC
Fort Belvoir, VA
GES is seeking an experienced Senior Storage Engineer to design, implement, administer, and optimize enterprise storage platforms in Fort Belvoir, VA. This role is responsible for ensuring…
Added 6 mins ago
Software Engineer
CACI, INC.-FEDERAL
Colorado Springs, CO
CACI is seeking a Software Engineer in support of the Data Transport Product Support Sustainment Logistics Maintenance (DSLM) contract, located in Colorado Springs, Colorado. You will…
Added 6 mins ago
Data Center Design Engineer
Cloudflare
Austin, TX
…all have web traffic routed through its intelligent global network, which gets smarter with every request. As a result, they see significant improvement in performance and a decrease in…
Added 6 mins ago
Program Manager, CE Imaging
Endeavor Health Clinical Operations
United States
…radiation-oncology support. Leads the imaging technical workforce (Imaging Engineer I-III, Specialist), owns imaging uptime, image quality, and regulatory compliance, and drives the…
Added 7 mins ago
PAS - Microsoft 365 AI Solution Architect- Consulting - Senior - Multiple Locations
EY
Sacramento, CA · Jericho, NY · Oklahoma City, OK · San Antonio, TX · Stamford, CT · Indianapolis, IN · Denver, CO · Salt Lake City, UT · Irvine, CA · Hartford, CT · Boca Raton, FL · Phoenix, AZ · Charlotte, NC · Chattanooga, TN · Southfield, MI · Charleston, WV · Detroit, MI · Tucson, AZ · Cleveland, OH · Las Vegas, NV · Raleigh, NC · Wichita, KS · Baltimore, MD · Rochester, NY · Milwaukee, WI · Pittsburgh, PA · Rogers, AR · Secaucus, NJ · Grandview Heights, OH · Nashville, TN · Hoboken, NJ · St. Louis, MO · Orlando, FL · Akron, OH · Westlake Village, CA · San Francisco, CA · New Brunswick, NJ · Birmingham, AL · Toledo, OH · Iselin, NJ · Greenville, SC · Seattle, WA · Cincinnati, OH · Minneapolis, MN · New Orleans, LA · Buffalo, NY · Arlington, VA · Memphis, TN · Portland, OR · Los Angeles, CA · Houston, TX · Philadelphia, PA · Providence, RI · Dallas, TX · Grand Rapids, MI · San Jose, CA · Baton Rouge, LA · Albany, NY · Louisville, KY · New York, NY · Jacksonville, FL · Tulsa, OK · Miami, FL · Austin, TX · Chantilly, VA · Palo Alto, CA · Alpharetta, GA · San Diego, CA · San Mateo, CA · Tallahassee, FL · Atlanta, GA · Washington, DC · McLean, VA · Huntsville, AL · Des Moines, IA · Kansas City, MO · Fort Worth, TX · Richmond, VA · Boston, MA · Tampa, FL · Chicago, IL
As an M365 SharePoint Engineer, you will have in-depth knowledge of Microsoft Dynamics 365 Finance and Supply Chain Management which enable you lead and participate in enterprise solution…
Added 7 mins ago
AI-Native Security Engineer - Senior
EY
Akron, OH · Albany, NY · Alpharetta, GA · Arlington, VA · Austin, TX · Baltimore, MD · Baton Rouge, LA · Birmingham, AL · Boca Raton, FL · Boston, MA · Buffalo, NY · Chantilly, VA · Charleston, WV · Chattanooga, TN · Chicago, IL · Cincinnati, OH · Cleveland, OH · Dallas, TX · Denver, CO · Des Moines, IA · Detroit, MI · Pittsburgh, PA · Fort Worth, TX · Grand Rapids, MI · Grandview Heights, OH · Greenville, SC · Hartford, CT · Hoboken, NJ · Houston, TX · Huntsville, AL · Indianapolis, IN · Irvine, CA · Jacksonville, FL · Kansas City, MO · Las Vegas, NV · Los Angeles, CA · Louisville, KY · McLean, VA · Memphis, TN · Iselin, NJ · Miami, FL · Milwaukee, WI · Minneapolis, MN · Nashville, TN · New Brunswick, NJ · New Orleans, LA · Jericho, NY · New York, NY · Charlotte, NC · Oklahoma City, OK · Orlando, FL · Palo Alto, CA · Philadelphia, PA · Phoenix, AZ · Portland, OR · Providence, RI · Raleigh, NC · Richmond, VA · Rochester, NY · Rogers, AR · Sacramento, CA · Salt Lake City, UT · San Antonio, TX · San Diego, CA · San Francisco, CA · San Jose, CA · San Mateo, CA · Seattle, WA · Secaucus, NJ · St. Louis, MO · Stamford, CT · Tallahassee, FL · Tampa, FL · Southfield, MI · Toledo, OH · Tucson, AZ · Tulsa, OK · Washington, DC · Westlake Village, CA · Wichita, KS · Atlanta, GA
Added 7 mins ago
AI-Native Product Engineer - Senior
EY
Austin, TX · Miami, FL · Secaucus, NJ · Cincinnati, OH · New Brunswick, NJ · Arlington, VA · Richmond, VA · Albany, NY · Baton Rouge, LA · Hoboken, NJ · Raleigh, NC · Southfield, MI · Grand Rapids, MI · Jacksonville, FL · Tucson, AZ · Charleston, WV · Dallas, TX · Fort Worth, TX · Portland, OR · Milwaukee, WI · Boston, MA · Los Angeles, CA · Sacramento, CA · Seattle, WA · Philadelphia, PA · Phoenix, AZ · Minneapolis, MN · Birmingham, AL · Irvine, CA · Boca Raton, FL · Las Vegas, NV · Wichita, KS · Louisville, KY · Detroit, MI · St. Louis, MO · Salt Lake City, UT · San Francisco, CA · Charlotte, NC · Oklahoma City, OK · Buffalo, NY · Hartford, CT · Denver, CO · Providence, RI · San Mateo, CA · Kansas City, MO · Greenville, SC · Cleveland, OH · Chantilly, VA · San Diego, CA · Akron, OH · Pittsburgh, PA · Rochester, NY · San Antonio, TX · Baltimore, MD · Rogers, AR · Huntsville, AL · Toledo, OH · Washington, DC · San Jose, CA · Alpharetta, GA · Stamford, CT · Jericho, NY · New Orleans, LA · Nashville, TN · Chattanooga, TN · Orlando, FL · Westlake Village, CA · Grandview Heights, OH · Tampa, FL · McLean, VA · Indianapolis, IN · Des Moines, IA · Houston, TX · Tallahassee, FL · New York, NY · Chicago, IL · Iselin, NJ · Palo Alto, CA · Memphis, TN · Tulsa, OK · Atlanta, GA
This role suits an engineer with founder-like ownership and the discipline to test assumptions early. You may move from a user conversation to a working prototype, from that prototype to a…

Amazon

Sr Security Engineer, Leo Security

Herndon, VA, United States
Arlington, VA, United States

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Job details

Posting language: English
Posted: Sep 11, 2026

Original job description

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

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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

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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

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

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

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

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

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

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

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

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

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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

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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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