Principal Electrical Power System Engineer

Hardware FYI; Houston (TX); On-site; USD 180,000 - 240,000; Full time

Job summary

Axiom Space seeks a Principal Electrical Power System Engineer to own and evolve the Electrical Power System architecture for the AxEMU PAC. You will craft requirements, perform analyses, and ensure interfaces meet mission objectives for reliable operation in space.

You will model power budgets, evaluate conversion approaches, and coordinate with EMC and grounding teams, while mentoring junior engineers and communicating progress to leadership.

Qualifications

• Bachelor's degree in Electrical Engineering or equivalent.
• Level 5: 12+ years experience with end-to-end program delivery through Critical Design Review or later.
• Deep knowledge of power electronics and control loops.
• Experience with system modeling tools (e.g., Simulink, PLECS, PSIM).

Responsibilities

• Own assigned segments of Electrical Power System baseline; write verifiable, traceable requirements.
• Model system and perform power budgets, load flow, and fault analysis.
• Evaluate power conversion approaches and heavy emphasis on system-level impact.
• Prepare power quality specifications and interface control documents; support verification and testing.
• Present and defend material at SRR, PDR, CDR, and readiness reviews; drive closure with NASA stakeholders.
• Mentor junior engineers and raise technical standards across the team.

Skills

Power electronics

System modeling

Requirements derivation

Team mentoring

Education

Bachelor's degree in Electrical Engineering

Advanced degree preferred

Tools

Simulink

PLECS

PSIM

Saber

SPICE tools

Python

Job description

OVERVIEW

Axiom Space is a human space exploration company, building era-defining space infrastructure and delivering technology-driven solutions that will empower civilization to transcend Earth. Beginning with Axiom Station, successor to the International Space Station, the company is pioneering a next-generation orbital settlement that will foster groundbreaking innovation and research in microgravity and drive the global space economy of tomorrow. Today, guided by the vision of leading humanity's expansion off planet, Axiom Space is the principal provider of commercial human spaceflight services and developer of advanced spacesuits for the Moon and beyond. For more information about Axiom Space, visit www.axiomspace.com.

Axiom Space fosters a work environment inclusive of all perspectives. We are the pioneers of commercial space, leading the transformation of low-Earth orbit into a global space marketplace. Our mission-driven team is seeking a bold and dynamic Principal Electrical Power System Engineer who is fueled by high accountability, execution horsepower, and driven to understand our world, science/technology, and life itself, for the benefit of all on Earth and beyond.

POSITION SUMMARY

Since Axiom Space is a very complex work environment, we are looking for a resilient, high-energy Principal Electrical Power System Engineer who understands power electronics deeply enough to turn that understanding into requirements, models, interface documents, and review products that withstand customer, partner, and supplier scrutiny.

The AxEMU PAC is composed of flight computers, radios, sensors, and network switches that enable communication and control during all aspects of a spacewalk. You will be responsible for creating the electrical and electronic components that manage commands, telemetry, and internal data flows, ensuring the suit operates reliably and meets mission objectives. The person in this seat owns assigned segments of that architecture end to end: the requirement, the analysis that backs it, the interface that exposes it, and the test that proves it.

KEY DUTIES & RESPONSIBILITIES

• Own assigned segments of the Electrical Power System requirement baseline. Author verifiable requirements that state system properties rather than implementations, maintain traceability and verification methods, and close TBD, TBC, and TBR items with named owners and closing events
• Model the system and produce the analyses that decisions depend on: power and energy budgets, load flow and voltage drop, transient and step load response, bus stability, fault current and protection coordination, inrush and capacitive load management, harness sizing, and efficiency and dissipation rollups
• Evaluate power conversion approaches and their system level consequences, including control behavior, current sharing, efficiency, mass, thermal, and electromagnetic signature, and review and challenge designs at that level
• Author and maintain power quality specifications for both sides of the interface: steady state voltage limits, ripple and noise, transient envelopes, stability criteria, and the limits imposed on power consuming equipment
• Contribute to grounding, bonding, isolation, and ground fault detection architecture, and coordinate with the EMC control program on control plan compliance, test tailoring, and non-compliance disposition
• Plan and support verification: verification matrices, test requirements and procedures, laboratory and engineering model test campaigns, power quality and stability measurement, fault insertion, and data reduction against acceptance criteria
• Prepare, present, and defend material at SRR, PDR, CDR, Test Readiness Review, and Manufacturing Readiness Review, including to NASA and drive actions to closure
• Mentor junior engineers, review their analyses and documents, and raise the technical standard of the team rather than only your own output
• Communicate progress, status, risk, and options to stakeholders and leadership
• Perform additional job duties as assigned

QUALIFICATIONS:

To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

Education & Experience

• Bachelor's degree from an accredited college or university in Electrical Engineering or equivalent. Advanced degree preferred
• Level 5: 12 or more years, including at least one program carried from requirements definition through Critical Design Review or later. An equivalent combination of education and experience may be considered
• Demonstrated depth in power electronics: DC to DC conversion, control loop behavior and stability, protection devices and coordination, and the practical failure modes of each
• Demonstrated system modeling capability using Simulink, PLECS, PSIM, Saber, SPICE class tools, Python, or equivalent, with the judgment to know which questions a model can address
• Proven ability to author engineering documentation that withstands external review: requirement specifications, interface control documents, power quality specifications, analysis reports, and verification plans and procedures
• Experience working requirements in a managed environment such as Jama, DOORS, or equivalent
• Direct experience mentoring newer engineers in development activities, including specification development, proposal evaluation, and design reviews
• Hands-on familiarity with electrical test equipment and laboratory practice, including oscilloscopes, electronic loads, programmable supplies, and power analyzers
• Track record of delivering outcomes in ambiguous, fast-moving environments, and of delivering high quality results under tight deadlines
• Uses good judgement to problem-solve proactively, positively impacting hard challenges
• Demonstrated organization skills to meet tight deadlines with high quality results

Preferred Qualifications

• Human spaceflight or crewed vehicle experience
• Experience with high voltage DC distribution, solid state power controllers, and arc and fault protection in a spacecraft context
• Experience with grounding, bonding, isolation architecture, and EMC control programs, including MIL-STD-461 test campaigns
• Experience with energy storage systems and their integration into a regulated bus
• Experience with orbital replaceable unit design, sparing strategy, and on orbit maintenance concepts
• INCOSE certification, or an equivalent demonstrated systems engineering practice

Core Skills

• Passion for space and the mission
• Entrepreneurial, growth mindset
• High EQ and ability to collaborate within teams and cross-functionally
• Tech-solutioning in using systems and tools to move smarter and faster

Core Competencies:

• Accountability
• Technical Rigor
• Execution Discipline
• Pride of Delivery

WORK ENVIRONMENT:

Generally, an office environment, but can involve inside or outside work depending on the task.

Requirements

• This position may require access to export controlled technical data or technology subject to NASA regulations, International Traffic in Arms Regulations (ITAR), or Export Administration Regulations (EAR). In accordance with U.S. export control laws, final candidates may be required to undergo additional export control screening to determine eligibility for access. Meeting these requirements is a condition of employment.
• Management has the prerogative to select at any level for which the position is advertised
• Must be willing to work evenings and weekends as needed to meet critical project milestones

Physical Requirements

• Work may involve sitting or standing for extended periods (90% of the time)
• May require lifting and carrying up to 25 lbs. (5% of the time)
• Equipment and Machines
• Standard office equipment (PC, phone, printer, etc.)

Axiom Space is proud to be an equal opportunity employer. Axiom Space does not discriminate on the basis of race, regional color, national origin, gender (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, gender expression, age, status as a protected veteran, status as an individual with disability, or other applicable legally protected characteristics.