Senior Software Engineer

Senior Software Engineer

At K , we deliver science, technology and engineering solutions to governments and companies around the world. K  employs approximately 37,000 people worldwide with customers in more than 85 countries and operations in over 28 countries. K  is proud to work with its customers across the globe to provide technology, value-added services, and long-term operations and maintenance services to ensure consistent delivery with predictable results.

Trinzic is the future independent company to be created through the planned spin-off of K 's Mission Technology Solutions business, expected in January 2027. Our people work at the frontier of what is possible, delivering solutions in challenging environments and advancing some of the world's highest-priority national security and space missions.

Candidates who join K 's Mission Technology Solutions business before the spin-off will transition to Trinzic when the separation is complete and will not need to reapply for employment.

K  is seeking a Senior Software Engineer to lead the development, integration, and evaluation of software solutions for various systems operating under various environments. This role supports modeling, simulation, and operationally relevant systems across research and applied DoD programs. These programs primarily involve, but not always, position, navigation, and timing (PNT) systems.

This position requires deep technical expertise in software development and PNT fundamentals, with the ability to design and perform algorithm implementation, guide technical execution, and work across system, algorithm, and integration boundaries. The developer will work closely with systems engineers and hardware teams to design, analyze, and mature PNT capabilities in laboratory and field environments.

• Design, develop, and maintain software supporting systems, simulations, and performance analysis environments
• Lead development and implementation of algorithms grounded in first principles physics, including measurement modeling, error characterization, and estimator behavior under non ideal conditions
• Architect and integrate within software frameworks supporting simulation, analysis, and test
• Integrate software with hardware- and software-in-the-loop (HITL& SITL) and digital twin environments
• Define and develop interfaces between software components and external systems
• Lead and support test planning, execution, and analysis for PNT-focused experiments, demonstrations, and evaluations
• Collaborate with systems engineers to align system requirements, hardware constraints, and software designs
• Review, mentor, and provide technical guidance to junior and mid-level engineers
• Document software designs, algorithms, and test results to support technical reviews and customer deliverables
• Participate in team technical interchange meetings to describe technical activities, progress, issues, improvements, and more

• Bachelor’s degree in Computer Engineering, Electrical Engineering or Aerospace Engineering
• Strong verbal and written communications skills
• 8+ years of professional experience developing software for technical systems
• Proficiency in C/C++ or Python with experience owning complex software components or frameworks
• Experience developing software on Linux and Windows based systems
• Strong understanding of PNT concepts (e.g., Global Navigation Satellite Systems (GNSSs),, inertial navigation, timing, sensor fusion) and associated error sources
• Experience integrating software with complex systems, simulations, or external hardware components
• Ability to obtain and maintain a U.S. DoD security clearance

• Advanced experience with GPS/GNSS signal processing, navigation…