Senior Software Engineer - Radar Modeling (Onsite)

Date Posted: 2026-06-29 Country: United States of America Location: US-VA-STERLING-291 ~ 22640 Davis Dr ~ DAVIS Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance Security Clearance Type: DoD Clearance: Secret Security Clearance Status: Active and existing security clearance required after day 1 Senior Software Engineer - Radar Modeling (Onsite) At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense. What You Will Do: Support high-fidelity radar models in flight simulation training systems. Build, update and maintain different types of radar models through software engineering in the host simulation code. Integrate with distributed simulation environments. Support, maintain, and enhance existing radar software products. Design, develop, test, and debug real-time, multi-threaded software, distributed applications, and APIs for simulation and training. May manage small projects or processes. Implement data standards based on specific radar models. What You Will Learn: Strategies for optimizing software performance and scalability in large, complex systems. Software architecture related to radar models and software simulation applications. Designing, implementing and integrating a variety of radar models to multiple Radar Simulation Systems for different platforms. The latest in radar technologies. Qualifications You Must Have: Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience Must have or be capable of obtaining a US Department of Defense (DoD) security clearance.  Candidate selected will be subject to a government security investigation/reinstatement and must meet eligibility requirements  Strong proficiency in C/C++ and Object-Oriented programming. Understanding of radar fundamentals: signal propagation, resolution, Doppler, clutter, Radar Cross Section (RCS), antenna patterns, attenuation, range bins, azimuth bins, etc. Ability to interpret engineering specifications for real radar systems and translate them into software models. Qualifications We Prefer: Ability to work with large, existing codebases and mission‑critical software. Need to know how Radar Simulation Systems (RSS) databases work including how data is structured, how to query it, and how it drives the radar model. Experience with using and creating Interface Control Documents (ICD) to establish the content and format of all host/RSS interface data. Need to know how RSS data flows into the radar pipeline. Experience with Air-Ground modes such as: Real Beam Ground Map (RBGM). GMTI (Ground Mapping Target Indication). SAR (Synthetic Aperture Radar). DBS (Doppler Beam Sharpening). AGR (Air to Ground Ranging) Experience with Air-Sea Modes such as: Sea Surface Search (SSS) Experience with Interleaved modes. Expertise in packet/network analysis tools (e.g., Wireshark). Support system integration, test events, and customer reviews. Extensive experience with radar software development and/or radar concepts. Radar modeling, tracking, and Radio Frequency (RF) systems knowledge. Familiarity and experience with Operational Flight Program (OFP) core software that is used in both a Full Mission Simulator (FMS) and Operational Flight Trainer (OFT). Proven leadership experience in a team environment, driving creative solutions to complex technical problems. Agile methodology. Software development for automated unit testing. Do you want to be a part of something bigger? A team whose impact stretches across the world, and even beyond? At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions — whatever and wherever they may be. Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions. By joining our team, you’ll have your own critical part to play in ensuring our customer succeeds today while anticipating their needs for tomorrow. Are you up for the challenge? Join our mission today. What We Offer: Some of our competitive benefits package includes:    Medical, dental, and vision insurance   Three weeks of vacation for newly hired employees   Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option   Tuition reimbursement program  Student Loan Repayment Program   Life insurance and disability coverage   Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection  Birth, adoption, parental leave benefits  Ovia Health, fertility, and family planning   Adoption Assistance            Autism Benefit   Employee Assistance Plan, including up to 10 free counseling sessions   Healthy You Incentives, wellne