Principal Electrical Power System Engineer

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:

Embody our core values of leadership , innovation , and teamwork. In addition, to perform the job successfully, an individual should demonstrate the following 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