Senior Software Engineer

KBR, Inc.•Beavercreek, OH

23h

About The Position

KBR 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, primarily involving 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. KBR's work is at the forefront of engineering, logistics, operations, science, program management, mission IT and cybersecurity solutions, offering innovative projects, a collaborative environment, and impactful work in designing and optimizing defense systems that ensure national security and shape the future of space defense.

Requirements

Bachelor’s degree in Computer Engineering, Electrical Engineering, Computer Science, or a related technical discipline
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

Nice To Haves

Advanced experience with GPS/GNSS signal processing, navigation algorithms, or timing systems
Experience developing or evaluating alternative or resilient PNT approaches
Experience with modeling, simulation, or digital twin environments supporting PNT analysis
Familiarity with real-time or embedded systems
Experience with HIL/SIL test architectures, laboratory integration, or field testing
Experience supporting DoD programs, laboratory R&D, or operational prototyping efforts

Responsibilities

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