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.
About the role
The Hyperscale Datacenter Senior Electrical Engineer is the senior electrical authority for ON.energy’s presence at hyperscale, colocation, enterprise, and AI-focused data centers. This role is focused on data center electrical engineering, while maintaining utility-interface fluency to translate customer, operator, substation, and site-infrastructure requirements into deployable product requirements, interfaces, and reference electrical designs.
Key Responsibilities
Reference Architectures & System Definition
•
Inform the end-to-end electrical reference architectures for ON.energy products across hyperscale, colocation, enterprise, and AI factory topologies LV and MV distribution, data center substation interfaces, and next-generation 800 Vdc designs.
•
Define single-line diagrams, redundancy models, substation interface assumptions, and fault-tolerance strategies for UPS, BESS, PCS, microgrid, and EMS integration.
•
Establish and enforce Interface Control Documents (ICDs) between ON.energy equipment and upstream utility, downstream IT load, and site controls.
Requirements Engineering
•
Own the requirements traceability matrix from customer SOW to system architecture to subsystem to component test.
•
Define compliance boundaries against applicable standards such as TIA-942, ASHRAE TC 9.9, and IEC 62040.
Customer & Ecosystem Engagement
•
Act as the technical face to hyperscale, colocation, and AI infrastructure customers throughout new product development.
•
Lead architecture reviews with project engineering teams, data center operators, and chip / server OEMs.
•
Represent ON.energy in industry working groups and codify insights into technology roadmaps.
Product & Technology Roadmap
•
Inform the architectural roadmap for ON.energy product architectures.
•
Evaluate emerging DC power distribution, solid-state transformer, and grid-interactive architectures; recommend build / buy / partner strategies.
•
Own vendor evaluation and technology partner scorecards from a systems-fit perspective.
Experience & Requirements
•
Education: B.S. in Electrical Engineering, Power Systems Engineering, or related field required. M.S. preferred; PhD acceptable where paired with substantial applied data center electrical design experience.
•
Experience: 5+ years in data center electrical systems, mission-critical facilities, hyperscale infrastructure, or A&E engineering serving hyperscale / colocation customers.
•
Domain Depth: Hyperscale and colocation electrical topologies from utility service entrance, data center substation design, MV/LV distribution, UPS and BESS integration, redundancy strategy, fault isolation, and server rack PDU interface requirements.
Preferred Experience
•
Architected power delivery for AI training clusters (>100 kW / rack, liquid-cooled, coincident load dynamics).
•
Prior work as a hyperscaler owner’s engineer, colocation infrastructure lead, or MEP principal for mission-critical facilities.
•
Published contributions to OCP, Uptime, IEEE PES, or CIGRE.
•
Professional Engineer (PE) license preferred, especially where paired with hands-on data center, substation, or mission-critical electrical design ownership.
•
U.S. Person status, or ability to support DOE / national-lab collaborations where U.S. Person eligibility is required.
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.
Legal
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.