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Added 5 days ago
Service Delivery Center, Quality Assurance, Testing - Analyst
EY
Jacksonville, FL · San Antonio, TX · Alpharetta, GA
Most of our projects are built in Java but you will also be exposed to different technologies including web (Angular, React, etc), other languages (.NET, python, etc), web/microservices and…
Added 5 days ago
K
Remote Senior Golang Engineer
Kforce
Remote, United States
- $150,000 to $170,000 USD / year
Kforce has a client in Carlsbad, CA that is seeking 3 Remote Senior Golang Engineers.
Added 5 days ago
Assistant Director of Configuration Management and DevOps Engineering
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Assists with preparation of reports for senior management review showing technology used at the Bank. This is to include availability, performance, and capacity.
Added 5 days ago
OBS - Programmer Analyst 3 || Richmond, VA || Hybrid
INFO ORIGIN INC
Richmond, VA
The Senior Programmer Analyst will be responsible for developing, enhancing, maintaining, and supporting Oracle E-Business Suite applications. Working as part of an Agile development team,…
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Senior Lead Software Engineer
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Senior Lead Software Engineer, Finance Technology
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Senior Software Developers in Test (Java, Selenium)
DTCC Candidate Experience
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Senior Staff Software Engineer, Platform
Rippling
San Francisco, CA · Seattle, WA · New York, NY
We're hiring a Senior Staff Engineer to help define the future of Rippling's core platform and AI infrastructure. This is a rare opportunity to work on foundational systems that sit at the…
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CCS Principal Software Engineer
Nomura Holdings, inc.
Jacksonville, FL
- $95,000 to $125,000 USD / year
Minimum of 5 years of experience with multiple technologies focussing on Java, JEE, Spring, SQL Server in Unix and Windows environments.
Added 5 days ago
Senior Software Engineer
Alder
Newton, MA
Design and build end-to-end features across the stack (React frontend, Java-based backend, AWS infrastructure).
Added 5 days ago
Senior CNO Developer (Onsite)
Nightwing Intelligence Solutions, LLC
Remote, United States
Minimum eight (8) years of experience programming in Assembly, C, C++, Java, Perl, and/or Python
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Sr Manager, Software Development & Engineering
Charles Schwab Inc.
Austin, TX
As a Senior Engineering Manager within Advisor Services Technology, you’ll lead multiple engineering teams responsible for building highly scalable, reliable applications that support a…
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Lead Site Reliability Engineer
Charles Schwab Inc.
Austin, TX
Hands-on experience supporting and troubleshooting large-scale Java and/or .NET production applications in cloud environments.
Added 5 days ago
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Java Developer - Senior
Randstad USA
Southlake, TX
- $63.2 to $65.62 USD / hour
This position is a senior role for a candidate who has the capabilities to create user information solutions by developing, implementing, and maintaining Java-based components and…
Added 5 days ago
Software Development Engineer, Alexa Sensitive Content Intelligence (ASCI)
Amazon.com Services LLC
Bellevue, WA
…working directly with applied scientists, product managers, and senior engineers to protect and delight Alexa customers…
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Senior Data Engineer, Data Analytics
Agility Robotics
Remote, United States
We are looking for a Senior Data Engineer to join our Data Platform team and help shape the foundation of data-driven operations at Agility. In this role, you’ll work closely with robotics…
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Senior Integration Engineer
Equs, Inc.
Remote, United States
We’re taking the EQUS Developer Toolkit to organizations of all kinds, from banks and other regulated institutions to employers, education providers, public bodies and digital platforms,…
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Software Engineer
Cotiviti
United States
- $91,000 to $118,000 USD / year
You will be required to collaborate effectively with external client team members, senior developers, enterprise technology teams, offshore development team members, business owners,…
Added 5 days ago
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Senior Fullstack Developer
Newhouse Project Consulting
Remote, United States
- $65 to $72 USD / hour
We have an opportunity for an experienced Senior Software Engineer to lead the development, enhancement, and support of multiple business applications. This role combines hands-on software…
Added 5 days ago
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Senior Application Software Engineer- Oracle Health
Oracle
United States
- $86,100 to $187,000 USD / year
We are seeking a versatile Senior Application Software Engineer to contribute across platform engineering, cloud infrastructure, distributed systems, application development, integration…
Added 5 days ago
Sr Security Engineer, Leo Security
Amazon
Herndon, VA · Arlington, VA
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…
Added 5 days ago
Software Development Manager, Leo Security
Amazon
Herndon, VA · Arlington, VA
Proficiency in at least one of Python, Rust, or Java, with the ability to read, review, and write production code on the team's stack
Added 5 days ago
Principal AI Security Engineer
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Remote, United States
…model platforms, and frontier AI capabilities. This hands-on senior technical role will write code, build controls, integrate them into enterprise platforms, and translate security…
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Sr Manager, Applied Science, Search
Amazon.com Services LLC
Seattle, WA · Irvine, CA
…signals adapting as their mission evolves. We are looking for a Senior Applied Science Manager to lead the development of leading AI/ML solutions that power intelligent, adaptive search…
Added 5 days ago
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Senior Software Engineer
Method Financial
New York, NY · Washington, DC · Austin, TX
- $205,000 to $240,000 USD / year
- Expert knowledge in JS, Python, Java or equivalent languages
Added 5 days ago
Senior Machine Learning Engineer - Secure AI Lab
Carnegie Mellon University
Pittsburgh, PA
…and modern programming languages including Python, C/C++, and Java. You will build and work with data pipelines, ETL processes, and backend systems. You will work with, extend, 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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