Junior Software Engineer

Title: Junior Software Engineer At KBR, we deliver science, technology and engineering solutions to governments and companies around the world. KBR employs approximately 37,000 people worldwide with customers in more than 85 countries and operations in over 28 countries. KBR 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 KBR'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. Backed by decades of mission success, deep expertise, and trusted partnerships, Trinzic will launch as a global organization with more than 18,000 employees supporting customers around the world. Join us at a defining moment and help shape the future of a company built to tackle complex challenges and make a meaningful impact. Candidates who join KBR'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. KBR is seeking a Junior Software Engineer that we can mentor and grow to support the development, integration, and evaluation of software solutions for various RF systems in various operational and signal environments. This role supports control, modeling, simulation, and testing of operationally relevant systems across research and applied DoD programs. This position requires a strong software foundation, interest in RF system fundamentals, and the ability to work across system, algorithm, and integration boundaries with guidance from senior engineers. The software person will work closely with systems engineers, and at times under the direction of systems engineers and hardware teams to implement, test, and analyze position, navigation, and timing (PNT) capabilities in constructive, laboratory and field environments. Key Responsibilities Develop, maintain, test, and document software for systems, simulations, and performance analysis environments Implement algorithms and models under guidance, including measurement modeling, error characterization, and estimator behavior under non-ideal conditions Implement and integrate algorithms within software frameworks Integrate software with hardware- and software-in-the-loop (HITL and SITL) and digital twin environments Develop interfaces between software components and external systems Support test planning, execution, and analysis for PNT-focused experiments, demonstrations, and evaluations Collaborate with systems engineers to align system requirements with software designs and implementations Document software implementations, interfaces, and test results to support technical reviews and deliverables Required Qualifications Bachelor's degree in Computer Engineering, Electrical Engineering or Aerospace Engineering 0-2 years of professional experience developing software for technical systems (experience can include internships, co-ops, or academic projects) Programming experience in C#/C++ or Python Experience developing software on Linux and Windows based systems Familiarity with PNT concepts (e.g., Global Navigation Satellite Systems (GNSSs), inertial navigation, timing, sensor fusion) Experience integrating software with complex systems, simulations, or external hardware components Ability to obtain and maintain a U.S. DoD security clearance Participate in team technical interchange meetings to describe technical activities, progress, issues, improvements, and more Desired Qualifications Academic or project experience with GPS/GNSS signal processing, navigation algorithms, or timing systems Strong verbal and written communications skills Experience with modeling, simulation, or digital twin environments Familiarity with real-time or embedded systems Experience with HITL/SITL test architectures or laboratory integration Experience supporting DoD programs, laboratory R&D, or operational prototyping efforts Basic Compensation: $80,000 - $100,000 (For Beavercreek, OH Only)The offered rate will be based on the selected candidate's knowledge, skills, abilities and/or experience and in consideration of internal parity. Additional Compensation: KBR may offer bonuses, commissions, or other forms of compensation to certain job titles or levels, per internal policy or contractual designation. Additional compensation may be in the form of sign on bonus, relocation benefits, short term incentives, long term incentives, or discretionary payments for exceptional performance. KBR Benefits KBR offers a selection of competitive lifestyle benefits which could include 401K plan with company match, medical, dental, vision, life insurance, AD&D, flexible spending account, disability, paid time off, or flexible work schedule. We support career advancement through professional training and development. Belong, Connect and Grow at KBRAt KBR, we are passionate about our people and our Zero Harm culture. These inform all that we do and are at the heart of our commitment to, and ongoing journey toward being a People First company. That commitment is central to our team of team's philosophy and fosters an environment where everyone can Belong, Connect and Grow. We Deliver - Together. KBR is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, disability, sex, sexual orientation, gender identity or expression, age, national origin, veteran status, genetic information, union status and/or beliefs, or any other characteristic protected by federal, state, or local law. Trinzic