Software Engineer Security Clearance

Position: Software Engineer with Security Clearance
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- Description The Aerospace Systems Group with the Defense System Sector at Leidos currently has an opening for a Senior Software Engineer supporting the RF Engineering portfolio in Huntsville, AL. This is an exciting opportunity to use your experience in software development and software maintenance for advanced RF systems that provide critical information to customers.

Primary Responsibilities:

The successful candidate will be responsible for performing the software engineering for full stack software, including the design, development, testing, troubleshooting, and debugging of software programs for enhancements and new software-intensive systems and products. Duties include software requirements analysis, analysis of hardware compatibility, development of software products and tools used for design, development and maintenance of infrastructure, and platforms.

Basic Qualifications:

* BS degree in Computer Engineering or similar with 8 years of experience;
Masters with 2 – 6 years of prior relevant experience.

* Experience with CUDA programming, familiarity with QT and Boost Libraries, and build systems such as Cmake.

* Experience with Git version control and software design.

* Comfortable working within a Linux OS

* Strong problem solving and analytical skills.

* Active DoD Top Secret Clearance and willingness/ability to obtain a TS/SCI CI Poly in the future/ (U.S. Citizenship is required)

* Ability and willingness to work onsite in Huntsville Alabama.

Preferred Qualifications:

* Real time processing experience, containerization such as Pod Man or Docker , MATLAB, python, Java, Agile development.

* Active TS/SCI CI Poly clearance.
At Leidos, we don’t want someone who "fits the mold"—we want someone who melts it down and builds something better. This is a role for the restless, the over-caffeinated, the ones who ask, “what’s next?” before the dust settles on “what’s now.” If you’re already scheming step 20 while everyone else is still debating step 2… good. You’ll fit right in.

Original Posting:
January 13, 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 $87,100.00 - $ 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.

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 purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your…