Who We’re Looking For

Quantum Space is redefining mobility and maneuverability in space. Our high-mobility spacecraft platforms support national security, civil, and commercial missions with unmatched flexibility and propulsion capability. We build fast and iterate quickly. We are seeking a motivated and technically capable Electrical Engineer to support the design, development, integration, and testing of spacecraft electrical systems and defense-related space technologies. In this role, you will contribute to spacecraft avionics, communications, power systems, embedded electronics, and hardware integration activities while collaborating closely with multidisciplinary engineering teams. You will work hands-on with cutting-edge aerospace hardware in a fast-paced environment supporting national security and spaceflight missions.

We are seeking an Electrical Engineer III – Spacecraft Programs (EPS) to lead Electric Power Subsystem (EPS) development for Ranger spacecraft programs. This role is intended for an experienced spacecraft power systems engineer capable of driving subsystem architecture, power analysis, interface coordination, hardware development, and integration activities across complex spacecraft platforms.

You will work closely with avionics, propulsion, thermal, RF communications, GNC, payload, mechanical, and systems engineering teams to develop reliable and scalable spacecraft power architectures supporting long-duration, high-mobility missions.

Where You’ll Make an Impact

Lead Electric Power Subsystem (EPS) development across Ranger spacecraft programs from architecture definition through integration and flight readiness
Derive EPS subsystem requirements from spacecraft- and mission-level requirements while maintaining requirement traceability throughout development
Author and maintain EPS Interface Control Documents (ICDs) and coordinate electrical and operational interfaces across impacted spacecraft subsystems
Perform spacecraft power generation, storage, and distribution sizing analysis based on mission parameters, operational scenarios, and vehicle constraints
Develop and maintain spacecraft power models throughout the full spacecraft development lifecycle
Define and manage spacecraft power distribution architectures supporting avionics, propulsion, payload, RF communications, and vehicle-level operations
Drive technical resolution of subsystem integration challenges involving power allocation, electrical compatibility, redundancy, fault management, and operational constraints
Perform make-versus-buy trades supporting EPS hardware architecture and procurement decisions
Support management of EPS hardware vendors, suppliers, hardware deliveries, and subsystem integration schedules
Author spacecraft EPS integration and test (I&T) plans supporting subsystem validation, vehicle integration, environmental testing, and flight readiness activities
Collaborate with multidisciplinary teams to ensure EPS architectures support reliability, manufacturability, mission longevity, and operational flexibility
Support spacecraft assembly, integration, environmental testing, and launch campaign readiness activities
Participate in major spacecraft reviews including SRR, PDR, CDR, TRR, and FRR activities

What It Takes

B.S. in Electrical Engineering or related technical field
7+ years of experience developing spacecraft Electric Power Subsystems (EPS)
Experience deriving spacecraft electric power subsystem requirements and interface definitions
Experience performing spacecraft power generation and power storage sizing analysis based on mission parameters, vehicle constraints, and operational scenarios
Experience with spacecraft power distribution architectures and subsystem integration
Experience managing component suppliers and hardware vendors supporting spacecraft development programs
Experience constructing and maintaining spacecraft power models throughout spacecraft development lifecycles
Experience working with high-power and high-current spacecraft power system requirements
Strong systems-level understanding of spacecraft subsystem interactions and electrical integration considerations
Strong technical communication, analytical, and cross-functional coordination skills
Comfortable operating in fast-paced spacecraft development environments with high ownership and execution expectations

Nice-to-Have Experience

M.S. in Electrical Engineering or related technical field
Experience working across multiple spacecraft subsystems including propulsion, avionics, communications, payloads, and GNC systems
Experience working with high-voltage spacecraft EPS architectures
Experience working with mixed-voltage spacecraft power systems
Experience supporting spacecraft AI&T activities including vehicle-level and component-level environmental testing
Experience supporting spacecraft mission operations activities post-deployment
Experience leading hardware design reviews including schematic and PCB layout reviews
Experience supporting reliability, radiation, and EMI/EMC considerations at both component and spacecraft system levels

Experience using industry standard ECAD tools (Cadence, Altium)
Knowledge of emerging spacecraft technologies for power generation, energy storage, and power distribution
Experience supporting long-duration spacecraft missions in GEO, cislunar, or deep-space environments

What You’ll Get

Ownership – Lead development of mission-critical spacecraft power architectures supporting advanced Ranger missions
Innovation – Drive next-generation spacecraft power generation, storage, and distribution solutions enabling high-mobility operations
Impact – Enable reliable spacecraft operations across national security, civil, and commercial missions
Growth – Operate at the center of spacecraft development while influencing vehicle-level architecture, integration, and mission execution
Compensation – Competitive salary, equity, and comprehensive benefits including medical, dental, vision, generous leave, FSA, 401(k) matching, and equity sharing

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 the required authorizations from the U.S. Department of State.

Apply now. Join us in building the power systems enabling the next generation of agile, high-mobility spacecraft missions.