Junior Software Developer jobs in United States
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Leidos · 3 months ago

Junior Software Developer

positionUnited States
timeFull-time
remoteRemote
seniorityEntry Level
money$70K/yr - $126K/yr
date2+ years exp

Leidos is a leading defense company focused on building and sustaining mission-focused web applications. The Junior Software Developer will contribute across the stack, collaborating with senior engineers to write secure, maintainable code that supports real end users in the field.

ComputerGovernmentInformation ServicesInformation TechnologyNational SecuritySoftware
badNo H1BnoteSecurity Clearance RequirednoteU.S. Citizen Onlynote

Responsibilities

Full-stack development: Implement backend services in C# (.NET/ASP.NET) and front-end features in Vue.js and Nuxt, integrating with SQL Server
Secure coding: Apply best practices, input validation, logging, and error handling aligned to audit requirements
Data and APIs: Build RESTful APIs, write T-SQL queries and stored procedures for reliability and performance
Team collaboration: Work with QA, and DevOps to meet SLAs, resolve defects, and support fielded systems

Qualification

C# (.NET/ASP.NET)Vue.jsSQL ServerRESTGit workflowsJavaScript/TypeScriptSecure codingUnit/integration testingCI/CDAPI integrationUX fundamentals

Required

U.S. citizenship and ability to obtain/maintain a TS/SCI DoD security clearance as required by contract
Bachelor's Degree with 2 years of applicable experience or 4 additional years of experience in lieu of degree
Basic experience with C# (.NET/ASP.NET), JavaScript/TypeScript, Vue.js or similar framework, and SQL Server
Understanding of REST, HTTP, JSON, and relational database design
Familiar with Git workflows and pull requests
Writes readable, tested code; receptive to feedback and code reviews
Familiarity with secure coding concepts and least-privilege design

Preferred

Experience with unit/integration testing and basic performance profiling
Exposure to CI/CD (Azure DevOps, GitLab CI, Jenkins) and work item tracking (Jira/Azure Boards)
Experience consuming external services and handling auth flows (OAuth/JWT)
Ability to build accessible, responsive UIs with component libraries and state management

Company

Leidos

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Leidos is a Fortune 500® innovation company rapidly addressing the world’s most vexing challenges in national security and health.
dateFounded in 1969
location
Reston, Virginia, USA
people-size10001+ employees
web-link
https://www.leidos.com/

Funding

Current Stage
Public Company
Total Funding
unknown
2025-02-20Post Ipo Debt
2013-09-17IPO

Leadership Team

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James Carlini
Chief Technology Officer
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Theodore Tanner
Chief Technology Officer
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Recent News

Fortune
Fortune 500 Power Moves: Which executives gained and lost power this week
2025-12-20
MarketScreener
Leidos Names Theodore Tanner Chief Technology Officer
2025-12-16
Benzinga.com
Citigroup, Leidos Holdings And More On CNBC's 'Final Trades'
2025-12-16
Company data provided by crunchbase