Company Profile : TAR is building the world's first off-grid power plant for data centers, powered by renewable technologies. Their mission is to power intelligence for the world — enabling AI infrastructure to be built in the US by delivering fast, clean, and scalable energy.
Today, standing up a new data center means a 3-5 year wait to get connected to the grid. TAR eliminates that bottleneck by manufacturing, deploying, and operating off-grid energy assets with a renewable backbone. They vertically integrate to solve every layer of the stack — from racking systems to power electronics to dispatch algorithms to on-site construction — including building autonomous field robots that drive rebar foundations into the ground at utility-scale solar sites.
TAR is working directly with one of the largest compute providers and plans to deploy 5GW by 2028. The company is both a hardware and software company building massive, critical physical infrastructure.
The company operates on core principles of:
High ownership, high agency — own projects end-to-end
Speed — achieving great things on incredible timelines
First principles — no ego, no hierarchy, challenge every assumption
Passion — putting in long hours and hard work to solve the energy problem
Team Size – 10
Funding – 27 million
Location: San Fran & Austin TX
Position: Robotics Engineer
About This Role
We are looking for a Robotics Engineer (Electrical / Mechatronics) with 7+ years of experience to own everything electrical on an autonomous field robot that drives rebar foundations into the ground at utility-scale solar sites. You'll be joining a small, high-agency team building hardware from the ground up — taking systems from concept through deployment and eventually to fleet-level manufacturing. This is a ground-floor role with founding-team-level ownership and direct line of sight to a 100+ MW project in construction. We need someone who thrives in austere environments, owns problems end-to-end without handholding, and is ready to get their hands dirty in the dirt at pilot sites with a multimeter in hand.
What will you be doing?
Owning the robot's full electrical architecture end-to-end: power systems, motor control, sensing, wiring, embedded firmware, and safety circuits for a machine operating in harsh outdoor environments
Selecting and integrating motors, drives, actuators, and sensors — bridging the gap between electrical and mechanical teams on a small, fast-moving squad
Developing embedded firmware and real-time control systems (CAN bus, microcontroller/PLC control loops, fault handling, telemetry) to make heavy equipment behave like a precision robot
Field debugging and root-cause analysis at the Texas pilot site — designing for dust, heat, vibration, and EMI in West Texas summers
Supporting the path from one prototype to a small fleet: wire harness DFM, documentation, supplier management, and guiding the team toward production readiness
Onsite: 5 days per week in SF
Visa: Open to transfers or OPT
Salary : 150-250k – 15k Relocation
Equity: Competitive
Interview Process: initial cultural , technical interview, founder interview , onsite half day
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