Senior Principal Software Engineer - Radar Modeling

RTX

Senior Principal Software Engineer developing high-fidelity radar models for flight simulation systems. Collaborating on real-time software for air and defense industries, ensuring optimal performance and integration.

Posted 7/7/2026full-timeRemote • Virginia • 🇺🇸 United StatesSenior💰 $132,400 - $251,600 per yearWebsite

About the role

Key responsibilities & impact

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.

Requirements

What you’ll need

Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 10 years prior relevant experience or an Advanced Degree in a related field and minimum 7 years of experience
Must have or be capable of obtaining a US Department of Defense (DoD) security clearance.
Extensive experience with radar software development and radar concepts for simulation.
Proven leadership experience in a team environment, driving creative solutions to complex technical problems.
Strong proficiency in C/C++ and Object-Oriented programming.
Experience working on bids and proposals.
Ability to interpret engineering specifications for real radar systems and translate them into software models.
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.
Strong software architecture skills with the ability to design modular, scalable, high-performance systems for real-time simulation.
Deep understanding of radar systems: signal propagation, resolution, Doppler, clutter, Radar Cross Section (RCS), antenna patterns, attenuation, range bins, azimuth bins, etc.
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).
Agile methodology.
Software development for automated unit testing.

Benefits

Comp & perks

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, wellness rewards program
Doctor on Demand, virtual doctor visits
Bright Horizons, child and elder care services
Teladoc Medical Experts, second opinion program
Eligible for relocation assistance
And more!

ATS Keywords

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Hard Skills & Tools

Object-Oriented ProgrammingReal-Time Software DevelopmentMulti-Threaded SoftwareAPI DevelopmentData Standards ImplementationEngineering Specification InterpretationSoftware ArchitectureAutomated Unit TestingAgile MethodologyRadar Concepts

Soft Skills

Leadership ExperienceCreative Problem SolvingTeam Collaboration

Certifications

US Department of Defense (DoD) Security Clearance