Leidos has a new and exciting opportunity for a
Principal Software Engineer in our
Intelligence Sector, Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security!
Leidos is seeking a driven and experienced Software Engineer to support a high-stakes, mission-critical program. In this role, you'll help architect, develop, and integrate software solutions that shape national security and drive meaningful innovation. Join an Agile team where your expertise won't just be valued-it will be vital.
This position is eligible for a Sign-on Bonus: $25,000Primary Responsibilities- Design, develop, and enhance secure software applications and systems
- Integrate new software into evolving operational environments
- Analyze user needs to craft efficient and scalable solutions
- Debug and optimize existing software for performance and reliability
- Implement complex algorithms that meet rigorous technical standards
- Create and maintain system documentation and technical reports
- Collaborate in Agile Scrum teams to deliver rapid, high-quality releases
Basic Qualifications- Masters and 15+ years of software engineering experience on comparable programs or Bachelor's degree in Computer Science or related discipline and 17+ years of related experience
- Common software development tools such as Git, Kira, Confluence and other Atlassian Products
- Experience with Linux Command Line
- Recent experience with Java or similar programming language
- Basic understanding of Container Technologies such as Docker
- Basic understanding of web development and APIs
- Ability to troubleshoot and problem solve
- Willingness to learn new software and technologies related to backend or frontend development
- Security Clearance Requirement: Active Top Secret/SCI clearance with Polygraph
Required Technical Skills:- Experience with Spring Boot
- Experience with JavaScript, ReactJS specifically
- Experience with Apache Kafka
- Experience with Apache Nifi
- Understanding of Docker/Docker Compose
- Experience with build tools, such as Maven
- Experience with SQL databases
CONMD
CSSRC
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:July 21, 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 $154,050.00 - $278,475.00
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.
Never miss an opportunity! Create an alert based on the job you applied for.
