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Test Engineer
Data Device Corporation
Bohemia, NY
- $80,000 to $105,000 USD / year
The Test Engineer designs, develops, integrates, maintains, troubleshoots, and modernizes production test equipment, ranging from manual fixtures to complex automated test systems. These…
Added 2 mins ago
JH
Aerospace Systems Engineer – Flight Test & Performance Analysis
Johns Hopkins Applied Physics Laboratory
Laurel, MD
- $100,000 USD / year
We are seeking an Aerospace Systems Engineer to support the test, evaluation, and performance analysis of developmental Navy and Air Force missile systems, including Trident and Sentinel.…
Added 3 mins ago
CS
26-124 Research Data Engineer/Statistical Programmer Part-time
Colorado State University
Remote, United States
- Part-time
…conduct a project, “Using Quick Response Surveys to Develop and Pilot Test Flood Risk Communication”. The Quick Response Survey (QRS) project seeks a part-time (70% FTE) Research Data…
Added 3 mins ago
Senior Design Engineer, TVC
Ursa Major
Berthoud, CO
Maintain clear, organized technical documentation, including requirements, design reviews, test plans and reports, and verification/validation evidence.
Added 3 mins ago
Senior Design Engineer, Solid Rocket Motor Nozzles
Ursa Major
Berthoud, CO
Maintain clear, organized technical documentation, including requirements, design reviews, test plans and reports, and verification/validation evidence.
Added 4 mins ago
Lead ASIC Modem Design Engineer, Satellite Communication
Amazon Kuiper Manufacturing Enterprises LLC
Sunnyvale, CA · San Diego, CA
Lead ASIC Modem Design Engineer, Satellite Communication role within a high performance ASIC Modem design team. This team is using industry leading methodologies to develop proprietary…
Added 5 mins ago
Software Test Engineer
WCG Clinical
Nashville, TN
The Software Test Engineer is a member of the Quality Engineering team, responsible for supporting the testing, validation and delivery of WCG namedproducts and systems.The role applies…
Added 8 mins ago
Cybersecurity Systems Engineer III
Data Intelligence LLC
Moorestown, NJ
Data Intelligence, LLC (DI) is seeking a Cybersecurity Systems Engineer III to support the development and sustainment of the U.S. Navy's Aegis Weapon System in Moorestown, NJ.
Added 9 mins ago
S
Full Stack Application Remediation Engineer
SonoSim
Venice, CA
- $120,000 to $130,000 USD / year
We are seeking a versatile mid-level Full Stack Engineer (4+ years experience) who loves getting "hands-in-the-code" to tackle quick wins, proactively resolve maintenance tasks, and perform…
Added 10 mins ago
R&D System Engineer
SEDAA
Plymouth, MN
Looking for a senior engineer for R&D systems engineering in Electrophysiology division. Prior experience in medical devices and/or systems engineering a plus, especially prior experience…
Added 11 mins ago
Senior Systems Engineer, Tech Foundations
Airbnb
United States
The Senior Systems Engineer is a hands-on technical leader who moves fast, builds to last, and uses AI as a force multiplier - not a future initiative. In this role, you will own the…
Added 12 mins ago
Automation Engineer Tech
ASTEMO AMERICAS, INC.
Monroe, GA
Perform equipment validation, startup activities, and operational testing.
Added 16 mins ago
Campus Undergraduate Summer Internship Program - 2027 AI Engineer, Enterprise Technology Services- Phoenix, AZ
American Express
Phoenix, AZ
At American Express, we empower future technologists to learn, innovate, and make an impact from day one. As an AI Engineer Intern in Enterprise Technology Services, you’ll join a 10-week…
Added 22 mins ago
Design Engineer
Actalent
Albany, NY
Job Title: Design Engineer IIJob DescriptionThe Design Engineer II supports mid-level product design and validation for polypropylene venting systems and OEM components, translating…
Added 22 mins ago
A
Embedded Software Engineer
Actalent
Horsham, PA
- $120,000 to $165,000 USD / year
Collaborate with validation, integration, optical, hardware, and test engineering teams to improve product performance, execution efficiency, and development processes.
Added 22 mins ago
A
Test Engineer
Actalent
Burnsville, MN
- $38 to $47 USD / hour
Job Title: Test EngineerJob DescriptionThe Test Engineer performs end-to-end test engineering activities across all product test stages, from requirements definition and test planning to…
Added 26 mins ago
PI
Senior AIOps Engineer
Porch.com, Inc.
Remote, United States
- $135,000 to $189,000 USD / year
The future is bright for the Porch Group, and we’d love for you to be a part of it as our Senior AIOps Engineer I.
Added 28 mins ago
PI
Sr Validation Engineer - Infotainment
Polaris Industries Inc.
MN
- $95,000 to $125,000 USD / year
As a Senior Validation Engineer within Polaris' Vehicle Electronics and Software organization, you will lead validation for RIDE COMMAND display and gauge hardware and software across…
Added 33 mins ago
Manufacturing Engineer
Carel Usa Llc
Manheim, PA
The Manufacturing Engineer is responsible for developing, implementing, maintaining, and continuously improving manufacturing processes and equipment across assigned manufacturing…
Added 33 mins ago
Manufacturing Engineer
Carel Usa Llc
Manheim, PA
The Manufacturing Engineer is responsible for developing, implementing, maintaining, and continuously improving manufacturing processes and equipment across assigned manufacturing…
Added 34 mins ago
Full Stack Software Engineer - Clearance Required
LMI
United States
We're looking for a Full Stack Software Engineer with expertise across the frontend (React, TypeScript, CSS, HTML) and backend (Node.js, Express.js, OpenAPI, relational databases) stack to…
Added 34 mins ago
Mk21A Engineering Manager & Test Engineer
BAE Systems
Hill AFB, UT
We're seeking a Test Engineer with experience in testing complex systems, with a strong understanding of Test and Evaluation principals. You will provide weapon system expertise and lead…
Added 35 mins ago
Senior Electrical Engineer
i3 Assembly
Boxborough, MA
The Senior Electrical Engineer is responsible for the design, development, integration, testing, and support of complex electrical and electronic systems used in company products. This…
Added 35 mins ago
Principal Imaging Engineer
i3 Assembly
Boxborough, MA
The Principal Imaging Engineer is a senior technical contributor responsible for the development, evaluation, optimization, and support of imaging technologies used in CT scanning systems.…
Added 37 mins ago
Sr. Engineer, Technical
T-Mobile USA, Inc.
Frisco, TX · Overland Park, KS · Bellevue, WA
Design, configure, enhance, test, and support Oracle ERP Financials capabilities across General Ledger, Subledger Accounting, allocations, ledgers, chart-of-accounts structures, and related…

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

•

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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