Aerospace and Defense, CAD/CAM (Computer-Aided Design/Computer-Aided Manufacturing), Communication Skills, Electrical Design, Finite Element Analysis, Geometric Dimensioning and Tolerancing, Government, Hardware Design, Hardware Development, Identify Issues, Integration Testing, Leadership, Manufacturing, Mechanical Design, Mechanical Engineering, Mentoring, PTC Creo, Plasma, Product Lifecycle Management, Propulsion, Regulations, Root Cause Analysis, Strategic Analysis, System Architecture, System Test, Systems Administration/Management, Technical Leadership, Test Design, Testing, Thermal Analysis, Thermal Management, United States Citizen, Windchill PLM Software
LOCATION
Rockville, MD
POSTED
30+ days ago
Quantum Space is redefining mobility and autonomy beyond Earth orbit. Our Ranger spacecraft deliver high delta-V and sustained on-orbit maneuverability, enabling missions across cislunar and geostationary space that were previously out of reach. We are building the vehicles, infrastructure, and operational expertise that connect and protect assets across the Earth-Moon system.
Who We're Looking For
We are seeking a Mechanical Engineer III to lead the design and development of electric propulsion hardware and associated subsystems, from concept through flight.
This role is intended for an experienced engineer who can own propulsion-related hardware, drive design decisions, and deliver flight-ready systems. You will operate at the intersection of mechanical design, thermal management, and high-performance hardware development, working closely with propulsion, systems, and test teams.
Where You'll Make an Impact
Own mechanical design of electric propulsion subsystems (thruster assemblies, structural interfaces, feed systems, thermal management hardware)
Lead architecture and packaging trades for propulsion integration
Develop and release high-quality CAD models and drawings with full GD&T
Perform and guide structural and thermal analysis (including high-temperature and vacuum environments)
Drive integration and testing of propulsion systems, including anomaly resolution and root cause analysis
Define and execute verification strategies (analysis, inspection, test)
Lead design reviews (PDR/CDR) and communicate technical decisions clearly
Coordinate with suppliers and manufacturing partners for precision and high-performance components
Mentor junior engineers and elevate team technical capability
Ensure designs meet performance, manufacturability, and reliability requirements
What It Takes
BS or MS in Mechanical Engineering or related field
5-10+ years of experience developing hardware, preferably in high-performance aerospace systems
Strong proficiency in Creo (or similar CAD) and drawing release processes
Deep understanding of GD&T (ASME Y14.5)
Experience owning hardware through full lifecycle (design build test qualification/flight)
Strong background in structural and thermal analysis
Proven ability to lead technical efforts and drive decisions
Strong troubleshooting and root cause analysis capability
Ability to work on-site in the LA area
Nice-to-Have Experience
Direct experience with electric propulsion systems
Familiarity with plasma environments and material selection for EP systems
Experience with thermal management in high-power-density systems
Proficiency with FEA tools (ANSYS, Nastran, etc.)
Experience with environmental testing (TVAC, vibration, life testing)
Familiarity with PLM systems (Windchill or similar)
What You'll Get
Ownership - Lead development of critical propulsion hardware
Technical Depth - Work on cutting-edge electric propulsion systems
Leadership - Mentor engineers and influence system architecture
Compensation - Competitive salary, equity, and comprehensive benefits
Location:
Compensation: $125,000 to $155,000 Annual Salary Depending on Experience
Additional Requirements
To comply with U.S. Government space technology export regulations, including ITAR, applicants must be a U.S. citizen, lawful permanent resident, protected individual per 8 U.S.C. 1324b(a)(3), or eligible to obtain required authorizations.