Senior Software Engineer ! Security Clearance

Position: Senior Software Engineer with 25K sign on bonus! with Security Clearance
Location: Annapolis Junction

R
- Description Leidos is seeking a driven and experienced Senior 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. 💰 Sign-on Bonus: $25,000 Primary 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
* 14+ years of software engineering experience on comparable programs
* Bachelor's degree in Computer Science or related discipline
* TS/SCI clearance with Polygraph
* 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
* Ability to learn new software and technologies related to backend or frontend development Knowledge needed:
* 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:
June 16, 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 $ - $ 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  . 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  . 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  automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via Whats App, Telegram, etc. If you received an email…