Journeyman Full Stack Application Developer

R-00166819

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 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: September 17, 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 $85,150.00 - $153,925.00

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.