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Principal Software Engineer; Secret Clearance REQ

Job in Tucson, Pima County, Arizona, 85718, USA
Listing for: Kelly Services
Full Time position
Listed on 2026-01-12
Job specializations:
  • Software Development
    Software Engineer, C++ Developer
Salary/Wage Range or Industry Benchmark: 104 USD Hourly USD 104.00 HOUR
Job Description & How to Apply Below
Position: Principal Software Engineer (SECRET CLEARANCE REQ)

Principal Software Engineer

$104.43/hour

100% onsite in Tucson, AZ

REQUIRES ACTIVE SECRET SECURITY CLEARANCE FOR CONSIDERATION

Kelly Government Solutions is hiring for a principal software engineer on a DoD contract with our customer in Tucson, AZ. This assignment should last approximately one year and could be extended.

Job Description

At our customer, the foundation of everything they do is rooted in their values and a higher calling – to help our nation and allies defend freedoms and deter aggression. They bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. Their team solves tough, meaningful problems that create a safer, more secure world.

Tucson has a friendly, caring and laid-back atmosphere, combined with the innovation and energy of a metropolitan region and recognized as one of America’s 10 Best Small Cities. Surrounded by beautiful mountains, colorful Sonoran Desert landscape and majestic saguaro cacti, Tucson is blessed with some of nature’s best work. Tucson is known for its bright blue skies, and with more than 310 sunny days per year, Tucson’s fantastic weather lets residents enjoy the outdoors year-round.

The Test Equipment Engineering (TEE) team within the Hardware Discipline Center is a multi-discipline organization that provides test solutions to support production lines for our entire missile portfolio. The software team within TEE is responsible for developing advanced Windows application solutions for all our customer’s products. They are hands-on, designing with the latest technology and tools, and integrating state-of-the-art software solutions with the most advanced engineering systems in the world.

TEE products are in engineering labs, in the field, and in production environments utilized for weapon system products. TEE has job opportunities across all phases of the engineering lifecycle, including demonstrations, early engineering tests, design verification tests, production, and post-production sustainment.

This position is for a principal software engineer with at least eight (8) years of professional experience or five (5) years of professional experience and an advanced STEM degree. This position is focused on the design, development, integration, and maintenance of software as a part of on-site factory support of systems to support weapon system product development. The selected candidate will develop applications, libraries, and instrument drivers using the software style, development language, and integrated development environment specified by the organization.

The selected candidate will contribute to multidiscipline engineering teams. Typical work involves the development of both engineering and production equipment, environments, and systems. As such, the candidate will contribute to the completion of all stages of product development for RMD weapon system products. They will be expected to work, either as a part of a team or independently, to design, develop, and implement system level applications in support of producing and maintaining weapon system products.

Duties & Responsibilities
  • Design, develop and integrate object-oriented software applications using C#, C++ in Microsoft Visual Studio in a Windows Operating System (OS)

  • Prioritize and handle multiple software engineering tasks concurrently

  • Troubleshoot software and test equipment instrumentation

  • Work in a multidiscipline engineering team environment

  • Develop and derive requirements for software products

  • Lead and mentor junior software engineers

Required
  • Typically requires a Bachelor’s Degree in Science, Technology, Engineering, or Mathematics (STEM) and minimum of eight (8) years’ prior relevant experience, or an advanced degree in a related field and minimum of five (5) years’ experience

  • Experience in developing and integrating software applications using programming languages including but not limited to C++, C#, Java, Python or Visual Basic

  • Experience in utilizing integrated development environments and debugging tools to troubleshoot software implementation and ensure integrity of the software…

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