Journeyman Full Stack Application Developer with Security Clearance

R-00185674 Description The Journeyman Full Stack Application Developer will provide software development and sustainment support to the USSOCOM J6 Budget Tool. The developer will design, code, test, and maintain enterprise-level applications to ensure availability, reliability, and performance. The position requires demonstrated expertise in both front-end and back-end development using Angular, .NET, C#, SQL Server, and Windows Services. The developer will work as part of a cross-functional team in support of mission-critical financial systems, ensuring compliance with DoD standards, USSOCOM requirements, and cybersecurity policies.

Responsibilities

• Design, develop, test, and maintain application features in support of the USSOCOM J6 Budget Tool.
• Implement responsive front-end interfaces using Angular.
• Develop back-end services and APIs using .NET and C#.
• Design, maintain, and optimize SQL Server databases, queries, and stored procedures.
• Develop and maintain Windows Services for workflow automation and system integration.
• Conduct code reviews, unit testing, and integration testing.
• Ensure applications adhere to DoD cybersecurity and secure coding standards.
• Support lifecycle management activities including requirements gathering, design documentation, deployment, and sustainment.
• Collaborate with government stakeholders, business analysts, and other developers to meet mission needs.

Required Qualifications

• Requires BS and 4+ years of prior relevant experience or Masters with 2+ years of prior relevant experience, additional years of experience will be accepted in lieu of a degree.
• Active TS/SCI clearance (mandatory).
• DoD 8140/8570 IAT Level II certification (e.g., Security+ CE, CCNA Security, CySA+, GICSP, GSEC, SSCP).
• 3–7 years of experience as an application developer (Journeyman level).
• Demonstrated experience with:
• Angular (front-end development) * .NET and C# (back-end development)
• SQL Server (database development and optimization)
• Windows Services (design and maintenance)
• Experience with Agile software development methodologies.
• Strong problem-solving, troubleshooting, and analytical skills.

Preferred Qualifications

• Experience with USSOCOM or DoD financial systems.
• Knowledge of DevSecOps tools, CI/CD pipelines, and automated testing frameworks.
• Familiarity with containerization (Docker, Kubernetes) and cloud services.
• Familiarity with PowerApps/ O365 Environment a plus.
• Experience working within DISA STIGs, RMF, and DoD cybersecurity compliance frameworks.

If you're looking for comfort, keep scrol ling. 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: June 17, 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 $87,100.00 - $157,450.00 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.

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 .

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.