Junior Software Developer w​/TS​/SCI Clearance

Junior Software Developer w/ TS/SCI Clearance

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At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business.

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Leidos' Defense Systems, Sensor Systems Analysis & Engineering Portfolio is seeking a talented Jr Software Developer with a TS/SCI security clearance to work on multiple projects, primarily modeling & simulation efforts but also opportunities to work with hardware integration.

You will join a diverse team of junior-to-senior software developers, engineers, and scientists to help create unique solutions for complex problems. Our team solves important problems that make a difference and support our customers in the current and future defense of our nation; primarily in the areas of modeling & simulation, sensor integration, testing, characterization, modeling, simulation, data analysis, and algorithm development for electro-optical infrared (EO/IR) systems.

The ideal developer candidate will also demonstrate experience in and/or enthusiasm toward developing a broader technical capability to support overlapping engineering and scientific disciplines with a particular focus on writing software to solve problems. Candidate will be expected to support multiple tasks in parallel, productively contribute to a team environment, and communicate effectively to management, coworkers, and customers.

You’ll work within an established and very skilled team, alongside other contractors and our customers.

Joining our team offers the opportunity to work with experts in their field and grow your career in an area that is appealing to you. You will quickly become an integral member of our team and be given the opportunity to take responsibility for challenging problems of your own. Because of this, we seek team members that are driven and engaged in their work while simultaneously demonstrating high character, given that you will often be working on sensitive and unique problems which require a high degree of trust from our customers.

• Candidate can expect to work closely with a team of engineers and scientists to write software (using primarily C++ and Python) to solve problems in a variety of disciplines to include EO/IR sensor systems, primarily for modeling & simulation purposes.
• Because the candidate may fill various project needs, an interest in working multiple programs with intermediate ability in C++ and Python is expected along with strong object-oriented design skills, the ability to create design documentation, requirements specifications, and other technical documentation.
• Candidate is also expected to have the ability to work and to communicate effectively within a multidisciplinary team and have familiarity with software development for both Windows and Linux OS.

• Bachelor's degree from an accredited university in software engineering, computer science, or an equivalent engineering or science degree with 2+ years of relevant software development experience.
• TS/SCI security clearance and the ability to maintain a DoW security clearance.
• Intermediate ability with C++/Python and experience using version control systems such as Git.
• Candidate must be a resident of the North Alabama area or willing to relocate to the Huntsville – North Alabama, AL, area.

• In addition to the qualifications listed above, the ideal candidate should be highly organized, demonstrating the ability to work independently at times due to a fast-paced and highly productive work environment.
• Preference may be given to candidates with one or more of the following: recent stellar academic performance, a TS/SCI clearance (with CI Polygraph); familiarity or interest in EO/IR phenomenology; experience with image processing; experience with GPU programming and/or CUDA programming; experience with developing AI/ML solutions; experience with build systems such as CMake.

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.

Original Posting: December 15, 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: $69,550.00 - $
The Leidos pay range for this job level is a general guideline only and not a…