Principal Electrical Engineer

ON.energy; Reston (VA); On-site; USD 170,000 - 210,000; Full time

Benefits offered by this job

Competitive salary

Annual performance-based bonus

Medical, dental, and vision insurance

401(k) with company match

Paid time off and company holidays

Job summary

ON.energy is seeking a Principal Electrical Engineer to serve as the technical leader across our product portfolio. This senior individual contributor role requires breadth across power systems, electrical design, and standards compliance, and includes mentoring hardware teams.

You will set technical direction, lead complex design work, and establish electrical standards for product lines, while collaborating with internal and external stakeholders to advance grid-safe data centers.

Qualifications

• Advanced knowledge of electrical power systems analysis, protection schemes, grounding/bonding, EMI and overvoltage phenomena.
• Ability to produce and review SLDs, schematics, and electrical specifications at product level.
• Excellent communication across technical and executive audiences.

Responsibilities

• Serve as technical authority for electrical system design across On.Energy product lines.
• Lead electrical architecture design including power distribution, protection, grounding, surge protection, and overall system integration.
• Support verification through standards, specifications, and review frameworks (NFPA 70, IEEE, ANSI, UL).
• Establish verification methods to demonstrate design compliance (analytical, simulation, testing).
• Perform and review electrical calculations, load flow, short circuit, arc flash, protection, EMI, and voltage surge studies.
• Lead design reviews and support root cause analyses for new and field issues.
• Compile and validate product technical information packages (SLDs, specs, compliance docs).
• Recommend vendors, components, and design approaches for key electrical equipment.
• Mentor and develop senior/mid-level engineering knowledge across Hardware Engineering.

Skills

Technical leadership

Power systems analysis

Electrical design

Mentorship

Education

Master's or PhD in Electrical Engineering

Job description

ON.energyis setting the standard for large load interconnection. ON’s patented AI UPS™ is a medium-voltage UPS that serves as a firewall, protecting the data center from the grid, and the grid from the data center.With multiple gigawatts currently under construction, we are enabling grid-safe data centers.

We are seeking a Principal Electrical Engineer to serve as a technical leader across On.Energy's product portfolio. This is a product-focused, senior individual contributor role requiring breadth across power systems, electrical design, systemsintegrationandelectrical codes and standards . You will setelectrical engineeringtechnical direction, lead complex design work, establish electrical standards, and mentor engineering teams acrossthe Hardware Engineering team.

What You’ll Do

• Serve as the technical authority for electrical system design across On.Energy product lines.
• Lead electrical architecture design including power distribution, protection coordination,groundingstrategy, surge protectionandoverall electricalsystem integration.
• Support design verification through domain electrical design standards, specifications, and review frameworks for the product portfolioe.g. NFPA 70,IEEE, ANSI and UL standards.
• Stablish verification methods todemonstrate electrical design compliance to technical requirements e.g. analytical, simulation or testing.
• Perform and review electrical calculations, load flow, short circuit,arc flash,protection, EMI, voltage surgestudies .
• Lead design reviews andsupportroot cause analyses for both new product development and field issues.
• Compile and validate product technical information packages includingbut not limited toSLDs, specs, and compliance documentation.
• Recommend vendors, components, and design approaches for key electrical equipment.
• Mentor and develop senior and mid-level electrical engineering knowledgeacrossHardware Engineering team.

Required Qualifications

• Master'sor Ph.D. in Electrical Engineering
• 10 to 15+ years of electrical engineering experience inelectricalsystemsanalysis, energy storage, or industrial applications.
• Expert knowledge of electrical power systemsanalysis, protection schemes, and grounding/bonding, EMI and overvoltage phenomena.
• Proven ability to produce and review SLDs, schematics, and electrical specifications at product level.
• Strong familiarity with NEC, IEEE, IEC, and UL standards applicable to electrical equipment.
• Excellent communication skills across technical and executive audiences.
• Willing to travel up to 20% forprototype testingandproductcommissioning.

Preferred Plus

• PE license or equivalent certification.
• Background in data centerelectrical backbone design.
• Experience with UL9540, NFPA 855, UL1741, UL1778and otherrelated battery storage standards.
• Experience with battery systems, power electronics, UPS, or mission-critical power system design.

For US-based roles - What you’ll get:

• Competitive salary + annual performance-based bonus eligibility
• Medical, dental, and vision insurance
• 401(k) with company match
• Paid time off and company holidays

For Mexico-based roles - What you’ll get:

• Competitive salary + annual performance bonus eligibility
• Major medical expenses and life insurance
• Paid time off and holidays (per local policy)

For all roles:

• Professional development and growth opportunities
• Opportunity to grow with a mission-driven team shaping the future of clean energy
• Equal Opportunity: ON.energy is committed to equal employment opportunity and to maintaining a work environment free of harassment, discrimination, or retaliation.
• Benefits vary by role and location and are subject to change.