The Intelligence Sector at Leidos currently has an opening for a Senior Software Engineer in Herndon, Virginia. This is an exciting opportunity to use your experience supporting the DIA’s SITE III JIOC mission.

Key Responsibilities:

• The selected candidate should have experience with agile software methodology, and software engineering design best practices. The candidate will work within a cross-functional Scrum team, and will be responsible for developing software, participating in acceptance criteria development, creating scripts, and utilizing Open Source and COTS tools to automate testing, documenting instructions, and participating in integration activities.

• Designs, develops, documents, tests and debugs applications software and systems that contain logical and mathematical solutions.

• Confers with systems analysts, engineers, programmers, and others to design system and to obtain information on project limitations and capabilities, performance requirements and interfaces.

• Designs, develops, and modifies software systems, using scientific analysis and mathematical models to predict and measure outcomes and consequences of design.

• Coordinates software system installations and monitors equipment functioning to ensure specifications are met.

• Performs software engineering and development activities associated with supporting, maintaining, and enhancing software.

• Develops and integrates bug fixes and new feature enhancements using DIA standard development tools and processes (e.g., Eclipse, VS Code, Gitlab).

REQUIRED Clearance: Active TS/SCI with polygraph, or TS with SCI eligibility and ability to obtain a polygraph

Required Qualifications:

• A Bachelor’s degree in an area applicable to the position with 12+ years of relevant experience OR a Master’s degree with 10+ years of relevant experience OR a PhD with 8 years of relevant experience; an additional 4 years of experience may be considered in lieu of a degree requirement.

• Programming Language Experience including – but not limited to –Java, JavaScript and Python.

• Experience in RHEL and ORACLE environments.

• AWS technologies: PostgreSQL, Oracle.

• Experience using modern techniques such as REST, JSON, Spring, Spring Boot, JavaScript, Ember.js frameworks.

• Experience with Docker, KeyCloak, Wildfly, Tomcat, ArcGIS, Fid

• Ability to work independently and in a team environment.

Desired Qualifications:

• Experience using Git, Jenkins, Gitlab.

• Experience with EC2, S3.

• Understanding of and experience with network administration and security protocols on various domains.

• Experience with Joint Intelligence Operations Command (JIOC) applications and/or intelligence data.

• Experience within the DIA (Defense Intelligence Agency) or other DoD security domains highly desired

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:

February 10, 2026

Pay Range:

Pay Range $131,300.00 - $237,350.00

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.