Astrodynamics and Navigation Engineer III

Quantum Space•Rockville, MD

About The Position

Quantum Space is redefining mobility and autonomy in cislunar and geostationary space. Our Ranger spacecraft deliver high delta-V and on-orbit maneuverability that enable customers to access, operate, and persist in orbits previously out of reach. We’re building the infrastructure, vehicles, and operational expertise that connect and protect assets across the Earth–Moon system. We are seeking an Astrodynamics and Navigation Engineer III to lead the analysis, design, and operational support of highly maneuverable spacecraft missions. This role will lead trajectory design, orbit determination, maneuver planning, and mission analysis efforts across the mission lifecycle — from early concept development through on-orbit operations. You will work closely with systems engineering, GNC, flight software, propulsion, and mission operations teams to develop and implement robust, high-fidelity flight dynamics capabilities that support trajectory design, orbit determination, maneuver planning, and mission analysis for missions across multiple regimes.

Requirements

Bachelor’s degree in Aerospace Engineering, Astrodynamics, Physics, or related field
5-10+ years of experience performing mission design tasks, general mission analysis, and flight dynamics related operations for spacecraft systems
Strong background in orbital mechanics, spacecraft dynamics, and spacecraft navigation
Experience with industry standard tools such as Systems Tool Kit (STK)/Orbit Determination Toolkit (ODTK), Freeflyer, GMAT, or similar
Experience in at least one of the following languages: Python, MATLAB
Strong analytical and problem-solving skills
Excellent written and verbal communication skills
U.S. citizen, lawful permanent resident, protected individual per 8 U.S.c. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.

Nice To Haves

Master’s degree in Aerospace Engineering with a focus in Astrodynamics or Estimation
Experience with cislunar three-body trajectory design and navigation
Experience with Rendezvous and Proximity Operations (RPO) mission design including relative orbit design and navigation
Experience designing low-thrust and hybrid propulsion spacecraft missions
Experience with alternative forms of spacecraft navigation (e.g. OpNAV, inter-satellite links)
Exposure to other spacecraft subsystems (e.g. GNC, propulsion, FSW)

Responsibilities

Lead mission design activities for LEO, MEO, GEO, and cislunar missions, including: Trajectory and maneuver design, Delta-v/propellant budgeting, Orbit maintenance planning, Navigation covariance sensitivity studies, Launch injection dispersion and maneuver execution, Monte Carlo analyses, Disposal planning
Own mission-level simulation and end-to-end performance analysis, including: Eclipse & payload coverage analyses, Conjunction assessment and collision avoidance analysis, Ground station visibility analysis and link budget inputs, Tracking geometry assessment and schedules, Scheduling support for mission operations
Architect navigation solutions, informing selection of spacecraft tracking measurement phenomenologies and ground networks
Develop and maintain internal flight dynamics and mission analysis tools (Python/MATLAB/C++-based)
Contribute to spacecraft operations, including maneuver planning, anomaly investigation and on-orbit performance evaluation
Generate technical documentation, trade studies, and design reports
Collaborate with GNC, communications, systems engineering, mission operations