2,239,594open jobs
144,050companies
250,743added this week
Browse all
Salary
$108k – $195k per year
Location
In office (Reston, Huntsville, San Diego)
Seniority
Principal · 12+ years exp
Visa
H-1B filings in 12 months: 50 · for this role: 24 · green card filings: 24
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 12, 2026. First seen by Alion on Nov 10, 2026. Leidos scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Leidos is an American technology and engineering services company created in 2013 when Science Applications International Corporation split in two, with Leidos taking the technical services and solutions business. It is one of the largest suppliers to the United States government, working across defence programmes, intelligence systems, civil agencies including the Federal Aviation Administration, and healthcare services for the Department of Veterans Affairs. Headquartered in Reston, Virginia, the company also builds security detection products for airports and borders, and has concentrated recent investment on trusted artificial intelligence and autonomy for mission environments.

Software Engineer - AI, Autonomy & Platform Development

Overview

The Leidos Office of Technology is seeking Software Engineers with AI and autonomy experience to help build a common technology platform.

In this role, you will design, build, and operate production software for AI-driven and autonomous systems. You will work in small, accountable build-and-run teams, using modern AI-assisted development practices to ship faster and at higher quality. Your work will support national security and other critical missions where reliability, security, and human oversight matter.

Location: The ideal candidate will be based in Northern Virginia or near another Leidos facility, such as Huntsville, AL, or San Diego, CA. Onsite work at a Leidos facility is required as business needs dictate.

What You’ll Do

  • Design and build AI agents and reasoning services, including LLM-based agents, planning, and inference, with human oversight, auditability, and fail-safe behavior built in.
  • Develop autonomy software and integrate it with sensors, platforms, and hardware across edge and cloud environments.
  • Design and develop platform software, including APIs and SDKs, data and knowledge services, and user-facing applications.
  • Package components as reusable, secure, well-documented assets that others can adopt without rework.
  • Build and maintain CI/CD pipelines, automated testing, and release evidence (SBOM, provenance, signing) that support secure release and deployment.
  • Own what you build in production, including observability, reliability, and incident response.
  • Contribute to engineering standards, reusable patterns, and technical-debt reduction across the platform.
  • Collaborate with program teams and architects to turn customer needs into repeatable capabilities.
  • Use AI-assisted development tools (coding assistants, agentic workflows, automated review and test generation) in daily engineering, and help teams adopt them effectively and responsibly.
  • Help evaluate emerging AI, autonomy, and developer-productivity technologies, and scale what works.

Basic Qualifications

  • We are hiring software engineers at all levels, from junior through senior, with opportunities tailored to individual experience and expertise in AI-enabled software development.
  • At the early career level, the ideal candidate would have a Bachelor’s degree in Computer Science, Software Engineering, or a related technical field, combined with 4+ years of experience. (Additional years of experience may be considered in lieu of a degree.)
  • At the mid level, the ideal candidate would have a Bachelor’s degree in Computer Science, Software Engineering, or a related technical field, combined with 8+ years of experience. (Additional years of experience may be considered in lieu of a degree.)
  • At the senior level, the ideal candidate would have a Bachelor’s degree in Computer Science, Software Engineering, or a related technical field, combined with 12+ years of experience. (Additional years of experience may be considered in lieu of a degree.)
  • Hands-on software development experience in one or more modern languages such as Python, C++, Rust, Java, Go, or TypeScript.
  • Experience (professional, academic, or personal projects) building AI/ML-enabled or autonomous systems, such as LLM agents, robotics, perception, planning, or sensor-driven software.
  • Working knowledge of Git-based workflows, CI/CD, automated testing, and DevSecOps practices.
  • Experience using AI-assisted development tools (e.g., GitHub Copilot, Cursor, Claude Code, or comparable) and the ability to quickly adopt new tools.
  • Strong communication skills and the ability to work effectively in small, cross-functional teams.
  • U.S. citizenship and the ability to obtain and maintain a Top Secret security clearance.

Preferred Qualifications

  • Experience building AI/ML-enabled systems, including LLM agents, agent frameworks, evaluation harnesses, or retrieval and data pipelines.
  • Experience with autonomy or robotics software, including perception, planning, control, sensor fusion, simulation, ROS 2, or DDS.
  • Experience with edge and embedded systems, real-time or deterministic software, Linux and real-time operating systems, or GPU/accelerator programming.
  • Experience designing APIs, SDKs, or developer platforms, including extensible component architectures, developer experience, platform engineering, or software modernization.
  • Experience with cloud and container technologies (AWS, Azure, Google Cloud; Docker, Kubernetes) and infrastructure as code.
  • Familiarity with secure software supply chain practices, static analysis, and security scanning tools (e.g., SonarQube, Fortify, Checkmarx).
  • Understanding of responsible AI practices for assured autonomy, including human-in-the-loop control, audit trails, and IP and data-handling considerations in AI-assisted development.
  • Background supporting federal, defense, intelligence, or homeland security missions, and an active Top Secret clearance.

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

Original Posting:

November 10, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $107,900.00 - $195,050.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
2,239,594 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

Backend
Remote, many countries
Similar stack
Same company
Reston
$204k – $280k per year · Hybrid · Full-Time · New York
Apply
Software Engineer 1 hour ago
$142k – $236k per year · In office · TS/SCI · 5+ years exp · Bachelor's Degree · Fort Meade
Python
JavaScript
TypeScript
C++
Python
Flask
DevOps
Rest API
Ansible
CI/CD
Docker
Configuration Management
Linux
Management
Agile
Apply
$247k – $308k per year · Remote (United States) · Full-Time · 8+ years exp
Python
Go
Rust
Databases
PostgreSQL
AI/ML
Model Context Protocol
AI Agents
LLM
Text-to-Speech
Deepgram
Vapi
Voice Agents
Mobile
Twilio
DevOps
Cloudflare
Apply
$275k per year · In office · Full-Time · 10+ years exp · Bachelor's Degree · Irvine
Python
C++
C++
LLVM
AI/ML
vLLM
Quantization
Multimodal AI
AI Agents
TensorRT
Transformers
PyTorch
LLM
RAG
Mixture of Experts
TPOT
CUDA
Triton
ROCm
Edge AI
MLIR
XLA
Speculative Decoding
KV Cache
Apply
$90k – $190k per year · Hybrid · Full-Time · 4+ years exp · Richmond
JavaScript
TypeScript
SQL
C#
C#
ASP.NET Core
Entity Framework Core
Databases
MongoDB
AI/ML
Claude Code
AI Agents
Frontend
Vue.js
Angular
Bootstrap
React.js
DevOps
Rest API
Azure
Git
QA
Swagger
Apply
Remote (likely EAEU) · Saint Petersburg
Python
C++
Perl
DevOps
Debian
Linux
TCP/IP
Cryptography
OpenSSL
Apply
up to $42k per year · Remote (likely EAEU) · Full-Time · Moscow
Python
TypeScript
Python
SQLAlchemy
FastAPI
Databases
PostgreSQL
ElasticSearch
AI/ML
Claude Code
DevOps
GitLab CI
Docker
Kubernetes
GitLab
Cybersecurity
Keycloak
Authentik
OWASP Top 10
Management
Confluence
Jira
QA
Playwright
Pytest
Apply
$8.3k per year (net) · Remote (likely EAEU) · Internship · Rostov-on-Don
Java
Java
Spring Framework
Hibernate
Databases
MySQL
PostgreSQL
DevOps
Git
Apply
up to $42k per year · Remote (likely EAEU) · Full-Time · Moscow
Python
JavaScript
Java
TypeScript
Python
Django
Java
Spring Boot
Databases
MySQL
PostgreSQL
AI/ML
Claude Code
Frontend
React.js
DevOps
Terraform
Ansible
Helm
GitLab CI
Docker
Kubernetes
GitLab
Management
Confluence
Jira
Apply
Equity · Remote (EU, Europe)
Databases
PostgreSQL
ClickHouse
AI/ML
Model Context Protocol
Prompt Engineering
AI Agents
LLM
RAG
DevOps
Rest API
gRPC
Terraform
GCP
Loki
Prometheus
Azure
CI/CD
GitOps
ArgoCD
AWS
Kubernetes
Grafana
Amazon EKS
Google GKE
Azure AKS
GitHub
GitLab
IAM
Apply
Software Engineer 8 hours ago
$150k – $250k per year · In office · TS/SCI · Reston · Chantilly
JavaScript
TypeScript
Node JS
Frontend
Vue.js
Angular
React.js
DevOps
GCP
Helm
Azure
AWS
Docker
Kubernetes
VLAN
MPLS
Management
Agile
Apply
$46k per year · In office · 1+ year exp · High School Diploma · Reston
Apply
$180k – $250k per year · Equity · Hybrid · Nationals only · 4+ years exp · Bachelor's Degree · Austin · Menlo Park · Reston
Python
AI/ML
Fine-tuning
Embeddings
Prompt Engineering
AI Agents
LLM
RAG
Hallucination
EU AI Act
NIST AI RMF
Machine Learning
DevOps
Rest API
GCP
Azure
AWS
Kubernetes
Cybersecurity
SOC 2
Apply
Remote (United States) · Secret · Full-Time · Reston
DevOps
Linux
TCP/IP
Apply
$156k – $174k per year · In office · TS/SCI · 7+ years exp · Reston
DevOps
Kubernetes
GitLab
Management
Confluence
Jira
Agile
Scrum
Apply
See all jobs
This is one of many
2,239,594 more open roles from verified company boards, updated every day.