# Principal Electrical Engineer at ON.energy

Principal Electrical Engineer at ON.energy in Houston, Texas, United States; Miami, Florida, United States; Reston, Virginia, United States. Posted July 14, 2026.

- Company: ON.energy
- Location: Houston, Texas, United States; Miami, Florida, United States; Reston, Virginia, United States
- Experience: 10+ years
- Posted: 2026-07-14
- Apply: https://job-boards.greenhouse.io/onenergy/jobs/4307349009
- Source: https://jobmagic.ai/jobs/principal-electrical-engineer-onenergy-s4vt81

## Requirements

- Master's or Ph.D. in Electrical Engineering

## Description

ON.energy is 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, systems integration and electrical codes and standards**. You will set electrical engineering technical direction, lead complex design work, establish electrical standards, and mentor engineering teams across the 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, grounding strategy, surge protection and overall electrical system integration. 

- Support design verification through domain **electrical design standards, specifications, and review frameworks** for the product portfolio e.g. NFPA 70, IEEE, ANSI and UL standards. 

- **Stablish verification methods** to demonstrate 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 surge studies**. 

- **Lead** **design reviews and support root cause analyses** for both new product development and field issues. 

- **Compile and validate product technical information packages** including but not limited to SLDs, specs, and compliance documentation. 

- Recommend **vendors, components, and design approaches** for key electrical equipment. 

- Mentor and develop senior and mid-level electrical engineering knowledge across Hardware Engineering team. 

**Required Qualifications** 

- Master's or Ph.D. in Electrical Engineering 

- **10 to 15+ years** of electrical engineering experience in electrical systems analysis, energy storage, or industrial applications. 

- Expert knowledge of **electrical power systems analysis, 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% for prototype testing and product commissioning. 

**Preferred Plus** 

- PE license or equivalent certification. 

- Background in **data center electrical backbone design.** 

- Experience with UL9540, NFPA 855, UL1741, UL1778 and other related 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

- Christmas Bonus (Aguinaldo): 30 days

- 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.

**Agency Notice:** ON.energy does not accept unsolicited resumes from staffing agencies, search firms, or third-party recruiters. Resumes submitted without a fully executed Master Services Agreement (MSA) and a written request from an authorized member of our Talent Acquisition team will be considered the property of ON.energy. No placement fees or compensation will be paid for unsolicited candidate submissions.