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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # System Engineer US Citizenship required - **Company:** Science Referral Network - **Location:** Tucson, AZ, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** C (Programming Language), Algorithm Design, Systems Engineering, Unix, C++ (Programming Language), Computational Fluid Dynamics, Program Optimization, Linux, Embedded Software, Network Interface Controllers, Global Positioning Systems (GPS), GPS Navigation Devices, Inertial Navigation Systems, Kinematics, MATLAB, Micro Electro-Mechanical Systems (MEMS), Microsoft Dynamics, Microsoft Software, Object-Oriented Software Development, Performance Tuning, Sensor Fusion, Signal Processing, Verification and Validation (Software), Deployment Automation, GNSS, Programming Languages - **Published:** September 4, 2026 - **Apply:** https://jobs.smartrecruiters.com/ScienceReferralNetwork/743999711853104-system-engineer-us-citizenship-required ## About the Role Strong graduate level* academic and analytical background with course work and independent research that includes a combination of digital and modern control systems, dynamics, Kalman filter design, aerodynamic, Computational Fluid Dynamics (CFD) analysis or signal processing. *Please submit your most recent transcripts when you apply Four (4) years of combined academic and applied experience with Matlab, C, C++, Object Oriented design Past use or familiarity with UNIX and LINUX operating systems as well as Microsoft products. Other Requirements: Must have an existing or the ability to obtain a Department of Defense issued Secret Security clearance. Must be willing to relocate to Tucson, AZ (comprehensive relocation package available) Desired Skills: Knowledge of system engineering design methods including requirements analysis and flowdown, specification derivation and interface control documentation Research related to Non-GPS navigation technologies including terrain aiding, celestial / star tracker, magnetometer, bathymetric, laser, or vision / imaging sensors Airborne RADAR systems including RF signal processing and tracking algorithms Autopilot design including linear systems, nonlinear systems, adaptive control, Lyaponov theory, robust control, and sliding mode control Performance analysis by simulation including verification and validation techniques Optimal guidance theory, trajectory shaping, estimation theory, analysis of random processes, non-linear Kalman filters, particle filters Knowledge of inertial navigation and vehicle state estimation algorithms including Kalman filtering for integration of GPS/GNSS receivers with MEMs inertial measurement units. Research and publications focused on the design and performance analysis of hypersonic vehicles including aerodynamics and propulsion systems of the vehicle Experience (2-4 years) estimating kinematic performance of hypersonic vehicles using tools such as NASA's OTIS tools Experience (2-4 years) in the design of control systems/architectures for hypersonic vehicles Ability to operate independently with minimal supervision Ability to communicate effectively with senior leadership and other engineering disciplines. (***OUR CLIENT CANNOT ACCEPT H1B, H2B, F1, TN1 VISAS OR GREEN CARD CANDIDATES***). We cannot work with outside parties or do C2C. ## Description The Senior Systems Engineer I is responsible for conducting missile guidance, navigation, air vehicle, control system, embedded software and missile performance analysis. Missile guidance tasks include guidance law development, state estimation, sensor fusion, trajectory shaping and miss distance performance optimization. Air vehicle design tasks include aerodynamics/stability & control, kinematic and propulsion system trade studies including computational fluid dynamics analysis, wind tunnel testing and aerodynamic model development. Navigation tasks include system trade studies, component modeling of inertial measurement units (IMU) and global positioning systems (GPS), as well as simulation of navigation algorithms particularly Kalman filters. Control system tasks include autopilot, control actuation system, mechanism and gimbaled seeker servo design. Embedded software includes real-time GNC algorithm development for missile system products. Missile performance analysis includes model development, system optimization and Monte Carlo assessments with expected system disturbances. Key Responsibilities (Essential Functions): Development of Missile Guidance Algorithms Coding of Missile Guidance Algorithms in Higher Order Computer Languages Development of Aerodynamic Models to include support to Wind Tunnel testing Development of Simulation Kinematics Models Analysis of Missile performance both in simulation and flight test ## Related Videos - [Remote Driving on Plant Grounds with State-of-the-Art Cloud Technologies](https://www.wearedevelopers.com/videos/251-remote-driving-on-plant-grounds-with-state-of-the-art-cloud-technologies) - [Docker network without Docker](https://www.wearedevelopers.com/videos/1418-docker-network-without-docker) - [WeAreDevelopers LIVE - Node and Package Security](https://www.wearedevelopers.com/videos/2138-wearedevelopers-live-node-and-package-security) - [Building a hypercar from scratch](https://www.wearedevelopers.com/videos/607-building-a-hypercar-from-scratch) - [Docker exec without Docker](https://www.wearedevelopers.com/videos/1094-docker-exec-without-docker) - [The Time Paradox: Building Timezone-Safe Python/Django Applications](https://www.wearedevelopers.com/videos/1915-the-time-paradox-building-timezone-safe-python-django-applications) ## Related Articles - [How software is steering vehicle technology](https://www.wearedevelopers.com/magazine/515-how-software-is-steering-vehicle-technology) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Résumé-Driven Development: How IT trends affect the job market for software developers](https://www.wearedevelopers.com/magazine/59-resume-driven-development-how-it-trends-affect-the-job-market-for-software-developers) - [Quick guide: How to write a Software Developer CV](https://www.wearedevelopers.com/magazine/37-quick-guide-how-to-write-a-software-developer-cv) - [Software Engineer Career: Things You Should Know](https://www.wearedevelopers.com/magazine/143-software-engineer-career-things-you-should-know)