What You'll Do- Develop open-loop and closed-loop controllers for RAAN and LTAN control, altitude management, station-keeping, and end-of-life disposal
- Implement and maintain onboard orbit propagators, select and validate integrators, and ensure numerical consistency with ground truth
- Build and validate orbit determination pipelines using EKF or UKF with GNSS, and manage navigation readiness and covariance gating for maneuvers
- Design burns and long-arc trajectories, and optimize delta V and timelines under comm visibility, power and thermal, and operations constraints
- Plan and execute electric-propulsion long burns, including throttle profile generation, power and duty-cycle scheduling, thermal considerations, ignition and re-ignition logic, progress monitoring, and correction strategies
- Coordinate burn pointing and wheel momentum strategy with ADCS
- Maintain numerically consistent MATLAB and C++ simulators, create Monte Carlo campaigns, run SIL and HIL tests, and perform post-maneuver reconstruction
Required Qualifications- You are strong in orbital mechanics and simulation and have implemented onboard propagators with perturbation models and integrators on flight targets
- You have built production guidance, control, or navigation software in C and C++, and use MATLAB and Simulink for analysis, modeling, and test-vector generation
- You have designed RAAN and LTAN control strategies in open-loop and closed-loop forms and validated them in high-fidelity sims or flight
- You have executed or supported real maneuvers and can reconcile plan versus truth with post-burn estimation
- You are comfortable at the ADCS and propulsion interface for burn pointing and momentum management
Desired Qualifications- Master's or Ph.D. in Aerospace Engineering, Control Systems, Applied Physics, or a related field
- Hands-on electric propulsion experience including thrust modeling and calibration, long-burn guidance, duty-cycle planning, and thermal constraints
- Experience with orbit propagation algorithms
- Trajectory design and optimization expertise
- Emphasis on code quality and reliability with unit and integration testing, SIL and HIL, and experience on embedded RTOS or embedded Linux targets
- Familiarity with CCSDS ephemeris and attitude formats
For U.S. Roles: To comply with U.S. Government space technology export regulations, applicant must be a U.S. citizen, lawful permanent resident of the United States (i.e. Green Card holder), or other protected individual as defined by 8 U.S.C. 1324b(a)(3).
For U.K. Roles: To comply with U.K. regulations, this role requires Baseline Personnel Security Standard (BPSS) checks, and successful candidates must be eligible to obtain UK Security Clearance (SC).
For Canada Roles: Successful candidates must obtain and hold a security clearance at the reliability status level, and pass security assessment for the Canadian Controlled Goods Program (CGP) and ITAR.
