Principal Software Engineer

Job Description

Description

Are you a motivated Principal Software Engineer with technical, hands-on experience developing software to solve challenging problems involving advanced technologies such as AI / ML, Resilient Systems, Quantum communications, and Cybersecurity? Join us at the Leidos Innovations Center, Information and Data Science Division, with a group of highly skilled and innovative individuals and a variety of exciting R&D programs.

Primary Responsibilities

• Collaborate with Principal Investigators, Researchers, and Subject Matter to refine system requirements
• Designing, implementing, and testing software systems for a variety of platforms utilizing modern software languages (C, C++, Python, Rust, etc.) to solve complex problems.
• Lead software development teams
• Lead efforts to develop the Software Development, Integration, and testing processes using state-of-the-art industry best practices
• Collaborate in cross-discipline teams to deliver measurable mission impact

Basic Qualifications

Preferred Qualifications

Come break things (in a good way). Then build them smarter.

We're the tech company everyone calls when things get weird. We don’t wear capes (they’re a safety hazard), but we do solve high-stakes problems with code, caffeine, and a healthy disregard for “how it’s always been done.”

Original Posting : October 2, 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 $126,100.00 - $227,950.00

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.