Mid Level Software Developer

Description

Experienced full-stack developer needed to design, implement, and sustain mission-focused web applications for defense customers. You will deliver robust backend services in .NET, craft responsive front-end experiences with Vue.js, and design / optimize SQL Server databases. Work is performed within disciplined SDLC, change-control, and secure delivery processes supporting deployed systems and field users.

This position can be worked remote, but strong preference will be given to candidates local to Newport News, VA

Key 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. ?

Required qualifications

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 qualifications

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.

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 : October 8, 2025

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 $87,100.00 - $157,450.00

The Leidos pay range for this job level is a general guideline onlyand 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.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com .

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com / careers / pay-benefits .

Securing Your Data

Beware of fake employment opportunities using Leidos' name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system - never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com .

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission () .

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

#Remote

REQNUMBER : R-00168214

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer / disability / vet.