Mid Level Software Developer jobs in United States
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Leidos · 3 months ago

Mid Level Software Developer

positionUnited States
timeFull-time
remoteRemote
seniorityMid Level
money$87K/yr - $157K/yr
date4+ years exp

Leidos is a company focused on delivering mission-critical solutions, and they are seeking an experienced full-stack developer. The role involves designing, implementing, and sustaining web applications, delivering backend services in .NET, and crafting responsive front-end experiences with Vue.js.

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

Responsibilities

Design and implement backend APIs and services using C# (.NET Core / ASP.NET) that meet performance, reliability, and security requirements
Develop responsive, component‑based UIs with Vue.js, Nuxt, Tailwind and other modern tooling
Design, optimize, and maintain SQL Server schemas, stored procedures, indexes, and query performance
Integrate applications with authentication/authorization systems (OAuth2/JWT, SAML) and external services
Produce clear technical documentation, and deployment artifacts for controlled and/or air‑gapped environments
Participate in code reviews and bug triage. Mentor junior engineers and coordinate knowledge transfer
Collaborate with product, QA, and systems teams to meet contract milestones and accreditation needs

Qualification

C#.NET Core / ASP.NETVue.jsSQL ServerRESTful API designGitDebuggingProblem-solvingCommunication skills

Required

Bachelor's Degree with 4–6 years professional software development experience with demonstrable work in full‑stack projects. 4 additional years of experience in lieu of degree
U.S. citizenship and ability to obtain/maintain a TS/SCI clearance
Strong proficiency in C# and .NET Core / ASP.NET development
Practical experience building front ends with Vue.js (or comparable modern JS/TS frameworks) and modern front‑end tooling
Solid experience with SQL and relational database design
Familiarity with RESTful API design, HTTP, JSON, and authentication patterns (Open API/Swagger)
Experience with Git and collaborative development workflows, branching, and pull requests
Strong debugging, problem‑solving, and communication skills; ability to work within structured, audited processes

Preferred

Experience with Microsoft SQL Server: schema design, T‑SQL, procedures, performance tuning
Exposure to CI/CD and DevSecOps toolchains (Azure DevOps, GitLab CI, automated test suites)
Experience with TypeScript, unit/integration testing frameworks, and front‑end component libraries
Experience packaging and deploying software into constrained or air‑gapped environments
Familiarity with performance and load testing tools and practices
Experience mentoring or leading small engineering teams and supporting junior staff growth

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