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Added 5 mins ago
PG
Robotics Simulation Engineer
Premier Global Links
San Francisco · San Francisco, CA
- $150,000 to $300,000 USD / year
We are seeking a Robotics Simulation Engineer to build high-fidelity 3D simulations and digital environments that help train next-generation robots. This is an opportunity to work on…
Added 6 mins ago
Senior Engineer - Firmware Engineer
MSI - (Marvell Semiconductor Inc.) US
Santa Clara, CA
Marvell’s semiconductor solutions are the essential building blocks of the data infrastructure that connects our world. Across enterprise, cloud and AI, and carrier architectures, our…
Added 6 mins ago
Vulnerability Security Engineer
Hewlett Packard Enterprise
All, MI
As a Vulnerability Security Engineer at HPE, you will be responsible for identifying, prioritizing, and driving remediation of security vulnerabilities while leveraging automation and…
Added 7 mins ago
Staff SW Engineer - Performance Engineering
Visa U.S.A. Inc.
Austin, TX
As a Software Engineer on the Risk and Security team, will design and develop our services for customers in an agile environment. Collaborating with supportive and challenging colleagues,…
Added 7 mins ago
Senior Cybersecurity Architect (Cloud)
Amentum
Carson City, NV
Build and maintain reusable infrastructure-as-code components and deployment automation for security policies, controls, and platform onboarding.
Added 7 mins ago
Cybersecurity Engineer (Cloud)
Amentum
Carson City, NV
Configure and test security policies, infrastructure-as-code controls, deployment automation, and supporting integrations in coordination with cloud platform and application owners.
Added 8 mins ago
MT
Dry System Mechanical Engineer
Micron Technology
Clay, NY · Clay
- $82,000 to $139,000 USD / year
…designing, operating, and continuously improving the critical infrastructure that powers our sites. We work collaboratively across engineering disciplines to deliver safe, reliable, and…
Added 8 mins ago
Principal AI Systems Performance Engineer
Micron Technology
Austin, TX · Austin
As a Principal AI Systems Performance Engineer, you will direct experiments on AI training, inference, and agentic workloads across complete server systems. You will pinpoint where…
Added 8 mins ago
Senior Engineer, Process Mechanical Engineer
Micron Technology
Boise, ID · Boise
Our Construction Engineering team delivers the infrastructure required to build and expand semiconductor manufacturing sites. We partner with design firms, contractors, vendors, and…
Added 8 mins ago
AI Engineer
Micron Technology
Boise, ID · Boise
We are seeking an early-career Full-Stack AI Engineer to help design, develop, and deploy AI-powered applications that support Micron’s Autonomous Operations initiatives. This role offers…
Added 9 mins ago
T
Windows Systems Engineer
TEKsystems
Colorado Springs, CO
- $50 to $65 USD / hour
DescriptionOur customer is seeking a Systems Engineer to provide immediate support for its Infrastructure team on a 3-6+ month engagement. This individual will primarily assist with Tier 2…
Added 9 mins ago
T
Platform Engineer (Snowflake)
TEKsystems
Cincinnati, OH
- $75 to $118 USD / hour
DescriptionThe Senior Snowflake Platform Engineer will provide hands-on technical leadership for the administration, reliability, security, performance, and cost optimization of the…
Added 9 mins ago
T
Powerplatform/Sharepoint Developer
TEKsystems
Charlotte, NC
- $55 to $70 USD / hour
…W2* (NO C2C)We are seeking a skilled Powerplatform/SharePoint Engineer. This role is critical to supporting our evolving infrastructure, with a focus on workflow platforms and legacy…
Added 9 mins ago
T
Powerplatform/Sharepoint Developer
TEKsystems
Jersey City, NJ
- $55 to $70 USD / hour
…W2* (NO C2C)We are seeking a skilled Powerplatform/SharePoint Engineer. This role is critical to supporting our evolving infrastructure, with a focus on workflow platforms and legacy…
Added 12 mins ago
TT
Founding Product Engineer
True Talent Solutions Partners
San Francisco, CA
- $165,000 to $210,000 USD / year
- Manage remote development environments and infrastructure for customer deployments.
Added 12 mins ago
TT
Founding Engineer
True Talent Solutions Partners
New York, NY
- $210,000 to $260,000 USD / year
Join an early-stage healthtech team as its backend-leaning Founding Engineer. You will own core platform engineering, building reliable systems for drug pricing, claims, and payments where…
Added 12 mins ago
TT
Founding Full-Stack Engineer
True Talent Solutions Partners
San Francisco, CA
- $180,000 to $240,000 USD / year
Join an early-stage industrial AI team building wearable AI products for field technicians working in critical infrastructure. You will own the product layer around the AI core, connecting…
Added 12 mins ago
TT
Founding Forward Deployed Engineer
True Talent Solutions Partners
New York, NY
- $180,000 to $250,000 USD / year
- Use internal agent tools and share feedback to improve evaluation guardrails, validation frameworks, and agent infrastructure.
Added 15 mins ago
K
Senior AI Software Engineer - Kiewit Infrastructure Engineers
Kiewit
OR · Lone Tree, CO
- $130,000 to $150,000 USD / year
Home District/Group: Kiewit Infrastructure Engineers
Added 15 mins ago
Senior Systems Engineer
WRA, Inc.
Remote, United States
In this role, you will act as the primary engineer for our cloud and SaaS platforms, including Microsoft 365, Azure infrastructure, Entra ID, endpoint management, and a variety of general…
Added 17 mins ago
Sr AI Engineer
Palo Alto Networks, Inc.
CA
Experience with Docker, Kubernetes, event-driven systems, and modern cloud infrastructure.
Added 20 mins ago
L
Senior Security Engineer - Detection & Response
Lambda
San Francisco, CA · San Jose, CA · Bellevue, WA
- $296,000 to $395,000 USD / year
Lambda, The Superintelligence Cloud, is a leader in AI cloud infrastructure serving tens of thousands of customers. Our customers range from AI researchers to enterprises and hyperscalers.…
Added 25 mins ago
Staff/Principal AI Transformation Engineer
DiDi Labs
San Jose, CA · Mountain View, CA
We are seeking a visionary, highly technical, and mission-driven Staff or Principal AI Transformation Engineer to act as the ultimate catalyst for our company-wide AI transformation. In…
Added 33 mins ago
CM
Cloud Platform Engineer I
Centene Management Company LLC
Remote, United States
- $30.58 to $55.09 USD / hour
The Cloud Platform Engineer I is a position for a motivated developer who will be joining our engineering team and help design, develop, and operationalize AI-enabled applications and…
Added 34 mins ago
VS
Founding Engineer
Valius Sciences
San Francisco, CA
- $200,000 to $300,000 USD / year
We’re hiring a Founding Engineer to build the technical foundation of Valius. You’ll work directly with the founders and our science team to define and build the infrastructure and products…

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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