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Added 1 hour ago
Junior Network Engineer
CACI International
Washington, DC
CACI is looking for a Network Engineer to join our ECS3 program. The Enterprise Communications Services 3 (ECS3) program supports our intel customer across its CONUS & OCONUS operating…
Added 1 hour ago
Sr. Systems Integration Engineer – IVI, OTA & Diagnostics Software
Ford Motor Company
Louisville, KY
Manage and troubleshoot IVI connectivity to plant network infrastructure, cloud diagnostic services, and backend network systems
Added 2 hours ago
Network Engineering/Operations Site Lead
Leidos
Fort Belvoir, VA
Leidos is seeking a mission-focused Network Engineering Operations Manager / Site Lead to lead a team of approximately 14 network engineers supporting the Defense Threat Reduction Agency…
Added 2 hours 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 2 hours ago
Senior Detection Engineer
Nightwing
Arlington, VA
…develop mitigation plans, and assist with the restoration of services. Nightwing is seeking a Senior Detection Engineer in support of this…
Added 3 hours ago
Sr. Software Engineer - AI and Data Platforms
Nextonic Solutions LLC
Rockville, MD
We are seeking a Senior Software Engineer to lead the design, development, and operation of applications that support scientific research and complex data workflows. This hands-on role…
Added 4 hours ago
Senior Software Engineer, Network Platform Security
Cisco
Milpitas, CA
The Network Engineering group is at the forefront of building the software platforms that power some of the largest networks in the world. The networking industry is undergoing a major…
Added 4 hours ago
Senior Data Engineer, Network Platform
Cisco
San Jose, CA
Cisco is reimagining how IT infrastructure is managed through secure, cloud-managed solutions. The Network Platform Data Science team helps turn Cisco’s rich, multifaceted customer and…
Added 4 hours ago
P
Mechanical Engineer Manager
Pfizer
Groton, CT
- $99,200 to $165,400 USD / year
…for 24x7x365 delivery of critical site utility systems and services within highly technical laboratories and manufacturing environments in support of the R&D operations at the Groton, CT…
Added 5 hours ago
Cyber Security Infrastructure Engineer
APEX SYSTEMS INC
SUN PRAIRIE, WI
Added 5 hours ago
A(
Infrastructure Engineer
Auria (Boecore LLC)
Colorado Springs, CO
- $125,000 to $140,000 USD / year
Auria is looking to hire an Infrastructure and Network Engineer to support the development of the Multirole Satellite Frequency In-Field Test Suites (MSFITS) program for the Department of…
Added 5 hours ago
Information Security and Cloud Architecture Lead
Astellas Pharma
Northbrook, IL
…security architects and engineers to architect, design and engineer the right security solutions for Astellas. The role's primary accountability will remain Information Security…
Added 5 hours ago
Engineer - IT Field Services
United Airlines
Chicago, IL
…delivered solution. They will oversee projects such as Local Area Network (LAN), Wide Area Network (WAN), Voice Over IP (VOIP), Closed Circuit Television (CCTV), Audio Visual (A/V)…
Added 6 hours ago
Senior Software Engineer, Cloud Platform
Nvidia
Remote, United States
The NVIDIA DSX OS organization is looking for software engineering talent to build NVIDIA’s accelerated compute cloud services. These services include software to manage hardware and…
Added 6 hours ago
GMW II - General Maintenance Worker II - M-F 2pm – 10:30pm (Stanford Healthcare Center)
EMCOR Group
Livermore, CA
EMCOR Facilities Services (EFS) has an immediate need for General Maintenance Worker II in Livermore, CA. Tri – Valley / East Bay Region. The technician will report to the Assistant Chief…
Added 6 hours ago
IT Infrastructure Engineer VI, Security
Kaiser Permanente
Pleasanton, CA
The Chief Engineer partners with identity and access management, cybersecurity, infrastructure, architecture, compliance, and other cross-functional technology teams to strengthen…
Added 6 hours ago
Network Implementation Engineer
Meta
Menlo Park, CA
…you want to develop and deploy innovative solutions to our network capacity challenges and influence the industry/ecosystem's evolution? You'll have a unique opportunity to shape the…
Added 6 hours ago
Software Engineer - Traffic Efficiency
Meta
Menlo Park, CA
Meta's Traffic Efficiency team improves the performance, capacity, and reliability of the edge infrastructure connecting people to Meta's products. Edge sites face tight space, power, and…
Added 6 hours ago
Security Architect II
ICW Group
San Diego, CA
…implementation patterns. Working across business, technology, security, infrastructure, data, and delivery teams, the Security Architect II promotes consistent risk-based decisions and…
Added 6 hours ago
EG
Network Engineer
Eliassen Group
San Mateo, CA
- $80 to $90 USD / hour
Our client seeks a seasoned Network Engineer to design, implement, and operate enterprise and cloud networking across Azure and AWS. The role shall focus on secure connectivity, routing and…
Added 6 hours ago
Desktop Support Engineer / IT
Frier & Levitt, LLC
Montville, NJ
Frier Levitt LLC, a healthcare and life sciences law firm, seeks a full-time Desktop Support Engineer to provide on-site IT support across our Pine Brook, New Jersey and New York City…
Added 6 hours ago
EO
Network Operations Manager
Effortless Office
Remote, United States
- $100,000 to $120,000 USD / year
…effortless so they can focus on their business. As a Hybrid Managed Services Provider (MSP) with a focus on providing world-class customer experience, we deliver and fully support secure…
Added 6 hours ago
Network Security Engineer
Altera Corporation
San Jose, CA
As a Senior Network Security Engineer at Altera, you will serve as a senior technical authority responsible for defining and advancing the enterprise network security strategy,…
Added 6 hours ago
Senior Site Reliability Engineer, CloudOps
ICU MEDICAL INC
SALT LAKE CITY, UT
Added 6 hours ago
T
Executive IT Support
TEKsystems
Bellevue, WA
- $40 to $50 USD / hour
We are seeking an Executive IT Support Engineer to provide white-glove technical support for executive leadership while serving as the primary onsite IT resource for a fast-paced,…

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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