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Added 3 mins ago
*Engineering Lead Analyst - CONVERSION*
Citibank, N.A.
United States
As a Cloud Security Controls Engineer at Citi, you will operate at the intersection of security architecture, software engineering, and cyber defense to safeguard our global multi-cloud…
Added 5 mins ago
Project Manager – Site Network Delivery
IREN
Kiowa, OK
…centers and GPU clusters for AI training and inference. IREN’s platform is underpinned by its expansive portfolio of grid-connected land and power in renewable-rich regions across North…
Added 7 mins ago
A
Controls Engineer
Actalent
Sherwood, OR
- $40 to $60 USD / hour
…and the opportunity to grow into a well-rounded automation engineer and future technical…
Added 8 mins ago
Staff IAM Engineer - Ping Identity and Directory Services
CVS Health
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As a Senior IAM Engineer, you will support and enhance enterprise Identity and Access Management (IAM) platforms, including Ping Identity, LDAP directory services, and authentication…
Added 8 mins ago
UG
Senior Full Stack Software Engineer
UnitedHealth Group
Eden Prairie, MN
- $91,700 to $163,700 USD / year
The Cyber Defense Tooling team is looking for a Senior Software Engineer to be a part of our development group. This individual will be tasked in helping maintain and advancing our in-house…
Added 8 mins ago
UG
Senior Support Engineer
UnitedHealth Group
Eden Prairie, MN
- $91,700 to $163,700 USD / year
As a Senior Software Engineer within EDET.OH (Enterprise Digital Experience Technology – OptumHealth), You will play a critical role in ensuring the high availability, scalability, and…
Added 9 mins ago
IG
Mulesoft API Principle Engineer
Insight Global
Phoenix, AZ
- $132,000 to $155,000 USD / year
As a Staff Engineer II – MuleSoft, you'll provide expertise across a suite of technical tools and products to ensure solutions are safe, secure, compliant, and reliable. In this role, the…
Added 9 mins ago
Full-stack Engineer 5
Capital One
NY
Partner with architects and product leaders to define platform roadmaps and shared services strategy
Added 10 mins ago
Principal Data Architect
Babel Street
Reston, VA · Somerville, MA
12+ years building data systems, with at least 5 as the lead architect or principal engineer on a large-scale data platform.
Added 10 mins ago
SC
Senior Software Engineer, Pioneer Desktop
SewerAI Corporation
Remote, United States
- $150,000 to $205,000 USD / year
SewerAI is transforming underground infrastructure management through AI-powered inspection and risk analysis. Our platform helps contractors, engineering firms, and utilities unlock…
Added 11 mins ago
Senior Enterprise Engineer - Salesforce Platform (EAA - STP)
Coinbase
Montpelier, VT
The Enterprise Applications & Architecture (EAA) team within Platform is the primary engineering partner for the Sales, Trading, and Prime (STP) business, building and operating Salesforce…
Added 11 mins ago
Sr. Machine Learning Engineer (Remote)
CrowdStrike
Montpelier, VT
…redefined modern security with the world’s most advanced AI-native platform. We work on large scale distributed systems, processing almost 3 trillion events per day and this traffic is…
Added 19 mins ago
AP
Senior Automation Scientist/Engineer - Biologics Engineering
AstraZeneca Pharmaceuticals LP Company
Gaithersburg, MD
- $124,000 to $171,000 USD / year
…organization as we create an industry-leading biologics discovery platform that unites scientific excellence, automation, and digital…
Added 21 mins ago
Data Engineer
Golden State
San Francisco, CA
The Golden State Warriors are looking for an experienced Data Engineer to join the growing Business Strategy and Analytics team. In this role, you will help us achieve our mission of…
Added 21 mins ago
Software Development Engineer, Creative Advertiser Experience, CreativeX
Amazon.com Services LLC
Santa Monica, CA
The team owns the creative authoring and activation platform that powers how advertisers create and deploy ad creatives across video, and streaming TV. The team operates the central…
Added 22 mins ago
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Senior Electrical Design Engineer
Jobot
Austin, TX
- $140,000 to $180,000 USD / year
…work, and build a team around you, all backed by a national platform with the resources to…
Added 22 mins ago
Senior Enterprise Engineer - Salesforce Platform (EAA - STP)
Coinbase
Nashville, TN
The Enterprise Applications & Architecture (EAA) team within Platform is the primary engineering partner for the Sales, Trading, and Prime (STP) business, building and operating Salesforce…
Added 22 mins ago
Sr. Machine Learning Engineer (Remote)
CrowdStrike
Nashville, TN
…redefined modern security with the world’s most advanced AI-native platform. We work on large scale distributed systems, processing almost 3 trillion events per day and this traffic is…
Added 22 mins ago
Lead AI Automation Engineer
Humana
Nashville, TN
The Lead AI Automation Engineer will provide hands-on technical leadership for the design, engineering, and productionization of AI-enabled automation across the Data Governance…
Added 22 mins ago
Senior Full Stack Engineer
Humana
Nashville, TN
Humana is seeking a Senior Full Stack Software Engineer who will be responsible for building and enhancing the UI/UX layer of Humana's Enterprise Data Governance Platform and Control Plane.
Added 25 mins ago
GVP, Enterprise Verticals Sales US (Manufacturing, Transportation & Energy)
ServiceNow
Vienna, VA
It all started when engineer Fred Luddy wrote code that automated a tedious task for his coworker, Phyllis. She cried tears of joy. That moment inspired Fred to build a company that could…
Added 25 mins ago
Distinguished Hardware Engineer
Cisco
San Jose, CA
As a Distinguished Engineer, you will serve as a technical visionary and advisor to Cisco’s engineering business and senior management. You will lead and influence key industry boards,…
Added 26 mins ago
Principal Analytics Engineer
Crisis Prevention Institute
Remote, United States
The Principal Analytics Engineer is the organization’s most senior individual contributor for the enterprise data platform and serves as the end-to-end technical owner of Snowflake and its…
Added 26 mins ago
Engineering Manager
Honeydew
Remote, United States
Honeydew is building a platform for hundreds of millions of people globally to access expertise and science-backed skin treatments, from prescription to retail. Our tech-forward dermatology…
Added 26 mins ago
S
Full Stack Software Engineer
SonoSim
Venice, CA
- $120,000 to $130,000 USD / year
We are seeking a mid-level Full Stack Software Engineer (4+ years experience) to build, ship, and scale core features across the SonoSim LMS platform. Working alongside Lead, Senior, and…

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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