Head of Power Systems Engineering
TAR
Posted about 5 hours ago
Mission
TAR’s mission is to power intelligence for the world. We are building the world’s first off-grid power plant for data centers powered by renewable technologies.
We firmly believe AI should be built in the US for the benefit of all people. For that, power must be fast, clean, and scalable. We are singularly focused on delivering GW-scale power faster than anyone has ever done, by rethinking every layer of the stack.
To deliver on this vision, TAR manufactures, deploys, and operates off-grid energy assets with a renewable backbone. We vertically integrate to solve every bottleneck, from racking systems to power electronics to dispatch algorithms to on-site construction.
Leave your mark by powering the future of civilisation-scale energy infrastructure.
We hire people who care deeply about this problem space. If that is you, please apply!
Company
We are a team of seasoned operators run by founders who previously scaled a company to over 80 people and $350M in annual sales. We know how to operate, and we move fast.
We are working directly with one of the largest compute providers to make our vision come true and plan to deploy 5GWs by 2028.
TAR is both a hardware and software company, we are building out massive, critical, physical infrastructure.
We operate on…
High ownership. High Agency. Own project end-to-end. Great people don’t need to be managed.
Speed. We achieve great things on incredible timelines. We always push ourselves to go faster.
First principles. No ego. No hierarchy. Challenge every assumption.
Passion. Solving the energy problem is one of the largest challenges that faces the world now and in the future. We put in long hours and hard work to solve this.
About the role
You are the technical owner of TAR's electrical architecture for behind-the-meter microgrids powering AI data centers in West Texas. You set the single-line design, make the architecture calls (AC/DC coupling, overbuild, protection philosophy, grid-forming strategy), and direct our Engineer of Record and external consultants. You own the electrical domain from pilot through to multi-GW buildouts. This is a hands-on role.
Responsibilities
Own the system architecture for fully islanded BTM microgrids: solar + BESS + gas peakers serving a continuous IT load.
Develop and maintain single-line diagrams, basis-of-design, and key electrical specs across MV/HV, collection, and PCS.
Direct the Engineer of Record and design consultants - set scope, review deliverables, hold them to schedule and quality. You make the decisions; they execute the stamped design.
Lead protection coordination, fault current and grounding studies, and validate behavior of IBR-dominant, grid-forming systems (limited fault current, anti-islanding moot, GFM control interactions).
Specify and evaluate inverters (PCS), BESS, transformers, switchgear, and balance-of-plant; drive vendor technical selection and FEOC-clean alternatives where ITC eligibility is at stake.
Define the power electronics requirements and validate grid-forming performance, ride-through, and dynamic response with the OEM.
Partner with mechanical, EPC, and the OE/IE on constructability, commissioning, and acceptance testing.
Support permitting and interconnection workstreams with the electrical inputs they require.
Build and lead the in-house electrical team as the program scales.
Qualifications
BSEE; 10+ years in utility-scale solar, BESS, or generation, with direct ownership of single-lines and system architecture (not just reviewing others' work).
Deep power systems fundamentals: load flow, short-circuit, protection coordination, grounding, arc flash.
Hands-on experience with grid-forming inverters and BESS PCS; able to interrogate OEM control behavior, not just read datasheets.
Track record managing an EOR or design consultants and owning the design intent across the V's.
Fluency in MV/HV collection and substation design for 100 MW-class plants.
PE strongly preferred (you set direction even if the EOR stamps).
Comfort in a fast, ambiguous, first-of-a-kind environment; bias to decisions over process.
Nice to have
Behind-the-meter / islanded microgrid or off-grid generation experience.
Salary and Benefits
Total compensation: $440-760K/year.
Base salary: $240-320K.
Milestone bonus: 10-20% of base.
Equity: $175-375K/year at TAR’s most recent valuation.
Up to $15K relocation bonus.
Unlimited PTO.
Health, Dental, Vision insurance.
$1K monthly stipend for meals.