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Added 29 mins ago
Senior Data Engineer (AWS & Databricks)
General Dynamics Information Technology
Fairfax, VA
GDIT is your place to make meaningful contributions to challenging projects and grow a rewarding career. The Senior Data Engineer will leverage their expertise with AWS Cloud and the…
Added 29 mins ago
Nuclear Engineer 3 - 31033
Huntington Ingalls Industries
Newport News, VA
This opportunity resides with Global Security (GS). Mission Technologies’ Global Security (GS) group comprises live, virtual, constructive (LVC) solutions; fleet sustainment; nuclear and…
Added 29 mins ago
Nuclear Engineer 4 - 31049
Huntington Ingalls Industries
Newport News, VA
This opportunity resides with Global Security (GS). Mission Technologies’ Global Security (GS) group comprises live, virtual, constructive (LVC) solutions; fleet sustainment; nuclear and…
Added 29 mins ago
Network Administrator (Network Communications 4)
Huntington Ingalls Industries
Virginia Beach, VA
This opportunity resides with Global Security (GS). Mission Technologies’ Global Security (GS) group comprises live, virtual, constructive (LVC) solutions; fleet sustainment; nuclear and…
Added 29 mins ago
Senior AI Software Engineer
Wells Fargo
MCLEAN, VA
We are seeking an Senior AI Engineer to help design, build, and deliver next-generation AI-enabled applications and agentic systems. This role combines hands-on engineering across frontend…
Added 29 mins ago
Software Development Engineer, Leo Space Security
Amazon
Arlington, VA · Herndon, VA
We are looking for a software development engineer to join the founding cohort of the Engineering and R&D team within Leo Space Security. The team defends the manufacturing lines, launch…
Added 29 mins ago
RF Test Engineer, Senior
BOOZ, ALLEN & HAMILTON, INC.
King George, VA
As an RF Test Engineer, you understand the workings behind complex systems. That knowledge is key when it comes to prototype development for Directed Energy ( DE ) systems and capabilities.…
Added 29 mins ago
Pulsed Power Engineer, Senior
BOOZ, ALLEN & HAMILTON, INC.
King George, VA
As an electrical engineer, you understand the workings behind complex systems. That knowledge is key when it comes to prototype development for Directed Energy ( DE ) systems and…
Added 30 mins ago
Facilities Construction Engineer 4 - 29706
HII
Newport News, VA
This opportunity resides with Global Security (GS). Mission Technologies' Global Security (GS) group comprises live, virtual, constructive (LVC) solutions; fleet sustainment; nuclear and…
Added 30 mins ago
EG
Senior Firewall, VPN & DMZ Network Engineer
Eliassen Group
Norfolk, VA
- $70 to $80 USD / hour
Our client seeks a Firewall, VPN, and DMZ Network Engineer to support the SMIT program for the United States Navy. The role focuses on designing, implementing, and maintaining network…
Added 30 mins ago
Zero Trust Engineer, Lead
BOOZ, ALLEN & HAMILTON, INC.
McLean, VA
…architected networks to execute its mission at speed and scale. As a senior Zero Trust Engineer lead, you will serve as a strategic leader responsible for shaping, governing, and advancing…
Added 30 mins ago
EG
Cloud Engineer
Eliassen Group
Richmond, VA
- $70 to $88 USD / hour
Our client seeks a senior Cloud Engineer to own and stabilize a legacy GCP and Azure footprint while assisting with conversions and decommissioning. The role will support automation efforts…
Added 1 hour ago
Senior Software Engineer (Data Engineering)
Workday, Inc.
CA · GA
You are a highly motivated and skilled Software engineer with a passion for data engineering and machine learning. You strive to apply technology to drive real impact on Workday's business…
Added 2 hours ago
BA
Modeling and Simulation Engineer, Senior
Booz Allen Hamilton
Colorado Springs, CO
- $86,800 to $198,000 USD / year
Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information
Added 2 hours ago
BA
Systems Engineer, Senior
Booz Allen Hamilton
Aurora, CO
- $86,800 to $198,000 USD / year
Are you looking for an opportunity to combine your technical skills with big picture thinking to impact the National Security Space Sector? You understand your customer's environment and…
Added 2 hours ago
Senior Software Engineer, Network Platform Security
Cisco
Milpitas, CA
Our team helps redefine how networking and platform security problems are solved. You will develop security solutions for next-generation networking platforms while creating AI-powered…
Added 2 hours ago
Senior Data Engineer, Network Platform
Cisco
San Jose, CA
…faster innovation. You’ll partner across Engineering, Product, Security, UX, Finance, Licensing, and other teams to deliver data platforms and products that are reliable, governed, and…
Added 2 hours ago
EG
Cloud Engineer
Eliassen Group
Hartford, CT
- $70 to $88 USD / hour
Our client seeks a senior Cloud Engineer to own and stabilize a legacy GCP and Azure footprint while assisting with conversions and decommissioning. The role will support automation efforts…
Added 3 hours ago
EG
Cloud Engineer
Eliassen Group
Oklahoma City, OK
- $70 to $88 USD / hour
Our client seeks a senior Cloud Engineer to own and stabilize a legacy GCP and Azure footprint while assisting with conversions and decommissioning. The role will support automation efforts…
Added 3 hours ago
Sr. Software Engineer
Abbott
Madison, WI
The Senior Software Engineer is a hands-on builder within the product-led Software Engineering team in Abbott’s cancer diagnostics division, focused on Digital Engineering and Integrations.…
Added 3 hours ago
EG
Cloud Engineer
Eliassen Group
Madison, WI
- $70 to $88 USD / hour
Our client seeks a senior Cloud Engineer to own and stabilize a legacy GCP and Azure footprint while assisting with conversions and decommissioning. The role will support automation efforts…
Added 3 hours ago
TT
Senior Security Engineer
True Talent Solutions Partners
San Francisco, CA
- $190,000 to $250,000 USD / year
Join a growing AI-focused fintech team as a hands-on Senior Security Engineer. You will evolve the application security program and help secure AI agent workflows in a regulated banking…
Added 3 hours ago
EG
Cloud Engineer
Eliassen Group
Springfield, IL
- $70 to $88 USD / hour
Our client seeks a senior Cloud Engineer to own and stabilize a legacy GCP and Azure footprint while assisting with conversions and decommissioning. The role will support automation efforts…
Added 4 hours ago
Senior Software & AI Engineer
Abbott
Sylmar, CA
The Senior Software & AI Engineer position works onsite in Sylmar, California within Abbott's Cardiac Rhythm Management (CRM) business.
Added 4 hours ago
Senior Software Engineer, Cloud Platform
Nvidia
Remote, United States
…provisioning to build a multi-tenant infrastructure. As a software engineer, you will work with other software engineers, product architects, and product managers as a collaborative team to…

Amazon

Software Development Engineer, Leo Space Security

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

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Job details

Posting language: English
Posted: Oct 21, 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 software development engineer to join the founding cohort of the Engineering and R&D team within Leo Space 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. You will build 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. The platform automates incident response, threat analysis, offensive security testing, and detection authoring, backed by a high-throughput streaming pipeline that takes a detection from concept to production in hours. The team is new and the surface area is wide: the features you ship become the system Leo's security teams run on from day one.

Export Control Requirement

Due to applicable export control laws and regulations, candidates must be a U.S. citizen.

Key job responsibilities

You will own building software features across the platform and deliver them end to end: clarify the requirements, write the design, ship the code, instrument the system, and keep it healthy in production. The features you own are concrete and high-consequence: the live state-of-the-world record that answers where every tracked device is, who last held it, and whether it is where it should be; consolidated detection that surfaces events from every Leo site type as one signal instead of siloed alarms; automated triage so security events arrive enriched and pre-adjudicated, with containment executed in seconds under human approval; self-service workflows that cut multi-day manual processes down to seconds; and the instrumentation that produces the metrics the security organization reports against. You will code independently, make design tradeoffs with guidance from the senior engineers who own the platform architecture, review your teammates' code, and operate what you build.

A day in the life

One morning you might ship a correlation feature that joins device, custody, and access events so triage surfaces a pattern no single data source shows. That afternoon you could be debugging why a detection's latency regressed, profiling the pipeline stage that slowed it down, and adding the metric that catches it next time. The next day you might pair with an applied scientist to backtest a candidate detection against retained telemetry before it ships, then pick up an operational ticket and automate away its root cause so no one handles it again. You will obsess over the two latencies that define the platform, the time from event to detection and the time from detection to containment action, and treat every manual step you find as a candidate for deletion. The team is new, so what you build now becomes the foundation others build on.

About the team

Leo Space 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

3+ years of non-internship professional software development experience
2+ years of non-internship design or architecture (design patterns, reliability and scaling) of new and existing systems experience
1+ years of software development engineer or related occupational experience
1+ years of designing and developing large-scale, multi-tiered, multi-threaded, embedded or distributed software applications, tools, systems, and services using: C#, C++, Java, or Perl experience

Preferred Qualifications

3+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience
Bachelor's degree in computer science or equivalent
Experience in one or more of the following domains: access- control system and methodology, network security, application- and system-development security, security architecture and models, cryptography, and operations security
Experience with performance optimization, including memory management, multi-threading, and profiling production systems
Experience with distributed systems fundamentals, including consensus, message passing, and fault tolerance
Experience with graph databases, knowledge graph platforms, or large-scale data modeling (Neptune, Neo4j, or equivalent)

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 - 143,700.00 - 194,400.00 USD annually

USA, VA, Herndon - 143,700.00 - 194,400.00 USD annually

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More about this job

Skills

Software development
Incident response
Debugging
Supply chain management
C#
C++
Oracle Java
Perl
Computer science
Control systems
Data modelling
Neo4j
Recruitment
Mental health

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