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Leidos

Senior Software Engineer / Data Scientist (Training Systems)

Leidos

Published 13 May 2026
USA
154K - 278K USD Annual
Temporary

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Role Highlights

Languages used

TypeScript
JavaScript
Python

Key skills

Machine Learning
Data Science
Vector Database
Computer Science
Integrations
API
UX
CICD
SME
SDLC
Data Visualization
Automated Testing
Full Stack
LLMs
Generative AI
Security
Frontend
Backend
UI
Architecture
Deployment
ProtoTyping
Mathematics
Inference
Debugging
Agile
TroubleShooting
NLP
Cloud

Tools, Libraries and Frameworks

HuggingFace
OpenAI
GitHub
Vue.js
Next.js
Angular
React
Langchain

Description

This role involves designing and building modern web-based training and mission-support applications for national security programs. The position requires a hands-on contributor to develop responsive front-end interfaces and integrate complex AI/ML capabilities into operational systems. Responsibilities include collaborating with cross-functional teams to translate learning objectives into interactive digital experiences. The work encompasses the full software development lifecycle, including architecture, implementation, testing, and deployment. Additionally, the role focuses on operationalizing AI-assisted development workflows to accelerate prototyping and software delivery.

Required Qualifications and Skills

Candidates must possess a bachelor’s degree in a technical field such as Computer Science, Data Science, or Software Engineering, along with at least 8 years of relevant experience and 15 years of total experience. Proficiency in TypeScript, modern front-end frameworks, and Python is required, as is practical experience with AI/ML workflows and data science techniques. Applicants must demonstrate strong software engineering fundamentals and the ability to leverage AI-assisted development tools. Finally, an active TS/SCI clearance with Polygraph is mandatory for this position.

Disclaimer

Disclaimer: Job and company description information and some of the data fields may have been generated via GPT-4 summarisation and could contain inaccuracies. The full external job listing link should always be relied on for authoritative information.

About the company

Leidos

Size

33167

Founded

HQ

Reston, US

Public/Private

Public Company

Description

Leidos is a Fortune 500® innovation company rapidly addressing the world’s most vexing challenges in national security and health. Our 47,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Virginia, Leidos reported annual revenues of approximately $14.4 billion for the fiscal year ended December 30, 2022. Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®. Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos. Your most important work is ahead, visit careers.leidos.com for our latest opportunities.

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