Full-Time

Mechatronics Engineer

Robotics

TAR

TAR

11-50 employees

Off-grid power plants for AI data centers

No salary listed

San Francisco, CA, USA

Hybrid

Regular field time is required at the GW-scale campus in West Texas.

Category
Mechanical Engineering (1)
Required Skills
Mechatronics
Oscilloscope
C/C++
Robotics

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Requirements
  • At least 4 years of electrical engineering experience, including meaningful experience at a robotics company or working on mobile or field robotic systems.
  • Deep knowledge of robotic electrical systems, including power electronics, motor control using BLDC, servo, or hydraulic proportional systems, sensor integration, and signal integrity in noisy environments.
  • Hands-on embedded experience writing firmware in C or C++ for real-time control, working with CAN or EtherCAT, and debugging with an oscilloscope.
  • Experience taking an electromechanical system from schematic through working hardware in real-world conditions.
  • Knowledge of functional safety, emergency-stop design, and interlocks for high-force machinery.
Responsibilities
  • Own the driver's electrical integration, including battery and power distribution, motor controllers, emergency-stop and safety circuits, connectors, and harnesses based on the electrical engineering team's board designs and fleet architecture.
  • Select and integrate motors, drives, and actuators with the mechanical team, and tune motor control for locomotion and the pile-driving tool head.
  • Design and build the sensing stack, including encoders, inertial measurement units, load and force sensing, real-time kinematic global navigation satellite system integration, and limit and proximity sensing.
  • Develop embedded firmware and real-time control, including Controller Area Network architecture, control loops, interlocks, fault handling, telemetry, and logging.
  • Establish the electrical test and bring-up process through bench testing, hardware-in-the-loop testing where useful, and field debugging with rigorous root-cause analysis.
  • Design for electromagnetic interference, thermal management in West Texas summers, ingress protection, and serviceability by field technicians.
  • Support the transition from one prototype to a small fleet through wire-harness design for manufacturability, documentation, and supplier management.
Desired Qualifications
  • Experience with high-power battery systems.
  • Experience with electrical control of hydraulics.
  • Experience with off-highway, agricultural, or construction equipment.
  • Experience with harsh-environment or outdoor robotics.

TAR builds and operates behind-the-meter power plants for AI data centers that cannot wait out a utility interconnection queue. The company designs islanded microgrids pairing solar, battery storage, and gas peakers, then manufactures, installs, and runs them, handling power electronics, microgrid controls, dispatch software, and site construction in-house. Compared with grid interconnection, which can take years to clear, an off-grid plant can be sited and energized on the developer's own schedule, and TAR says it is working with a large compute provider and targets 5 GW by 2028. Its goal is to remove power as the constraint on AI buildout by owning generation end to end.

Company Size

11-50

Company Stage

Series A

Total Funding

$147M

Headquarters

Texas

Founded

2025

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Simplify Jobs

Simplify's Take

What believers are saying

  • Spark Capital led TAR’s $120 million Series A at a $1 billion valuation.
  • TAR is hiring across engineering, robotics, power systems, supply chain, and projects.
  • TAR says Terminal One and a utility-scale neocloud deployment are already underway.

What critics are saying

  • TAR disclosed no commissioned megawatts, revenue, uptime, or customer contract details.
  • West Texas gas backup and turbine supply shortages threaten TAR’s reliability claims.
  • If TAR misses 2027 deployments, utility-scale customers abandon it and valuation collapses.

What makes TAR unique

  • On September 10, 2026, TAR funded vertically integrated off-grid power for AI data centers.
  • TAR’s modular systems combine solar, batteries, wind, and backup gas near customers.
  • TAR controls site selection, construction, commissioning, and operation from Austin and West Texas.

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Benefits

Meal Benefits

Unlimited Paid Time Off

Health Insurance

Dental Insurance

Vision Insurance

Relocation Assistance

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

0%

2 year growth

0%
DevCuration
Sep 11th, 2026
TAR raises $120M to power AI beyond the grid.

TAR raises $120M to power AI beyond the grid. A data center can secure chips, land, and a customer contract before it secures the power needed to run them. TAR is financing a different sequence: build self-contained generation beside the compute, own deployment from site selection through operation, and stop treating the interconnection queue as the default project schedule. The Austin company announced a $120M Series A led by Spark Capital on September 10, 2026. Returning investors Buckley Ventures and Align Fund participated, and TAR reported a $1B post-money valuation. The capital will expand its Austin headquarters, San Francisco engineering office, West Texas manufacturing and logistics operation, hiring, and deployments already underway. The round matters because the most visible AI infrastructure race has moved beyond models and chips. Electricity, construction capacity, equipment supply, and the time required to turn a planned site into live megawatts increasingly determine when compute can earn revenue. TAR is betting that ownership of those physical handoffs can become a product. What TAR raised and who backed it. Spark Capital led TAR's $120M Series A, with prior investors Buckley Ventures and Align Fund participating. Bloomberg reported the same amount, lead investor, and approximate valuation. Will Reed, General Partner, Growth at Spark Capital, framed power as the primary constraint on scaling compute in TAR's official announcement. The financing arrived 87 days after TAR announced a $27M seed. Together, the 2 disclosed rounds represent $147M in announced capital, although TAR has not presented that arithmetic total as a separately audited funding figure. The Series A doubles the company's reported post-money valuation from the $500M figure associated with the June seed to $1B. TAR was founded in 2026 by Pat Becker and Leonhard Soenke. Both previously built creator-economy company Throne, a software business with a very different operating cadence. Their new company has to coordinate land, heavy equipment, power electronics, batteries, construction, controls, and ongoing plant operation before the customer's workload can use a single electron. How TAR tries to compress the power timeline. TAR describes its systems as modular and self-contained, using renewable generation and battery storage without a grid connection. Becker has said the design combines solar, batteries, wind, and simple-cycle natural gas turbines reserved for backup or prolonged unfavorable weather. The company positions speed, rather than a lower price than grid electricity, as the core customer benefit. That speed thesis depends on vertical integration. TAR says it controls site selection, engineering, design, procurement, logistics, civil works, construction, commissioning, and ongoing operation. The company also says its purpose-built deployment automation and robotics move more work into repeatable manufacturing while reducing labor at the project site. The model replaces a long queue of external handoffs with one accountable operator. It also concentrates execution risk. Equipment delays, permitting, construction quality, renewable variability, storage sizing, backup generation, and commissioning remain physical obligations even when software makes the deployment sequence easier to coordinate. TAR says it is executing a utility-scale deployment with one of the largest neoclouds, developing a dedicated project campus, and completing TAR Terminal One, its West Texas manufacturing and logistics center. The customer has not been named. TAR also has not publicly disclosed commissioned capacity, revenue, uptime, signed backlog, or project-level economics, so those deployment claims remain company-reported. Why AI's power timeline matters. The market pressure behind TAR's pitch is measurable. The International Energy Agency's Electricity 2026 outlook projects U.S. electricity use will add more than 420 TWh through 2030, with data-center expansion accounting for about half of that growth. The IEA separately projects global data-center electricity consumption rising from 485 TWh in 2025 to about 950 TWh in 2030. More demand alone does not guarantee that every proposed data center will be built. AI projects need generation, transmission, substations, transformers, batteries, gas turbines, local permits, financing, and customers willing to commit before the infrastructure is fully proven. The IEA notes that constraints across grid connections and energy-equipment supply are already limiting near-term scenarios even as project pipelines grow. Different startups are attacking different parts of that constraint. Emerald AI is working on flexible data-center demand, while Catalyst Power is financing distributed onsite generation. TAR is taking a more integrated position: own the generation system and the delivery chain required to make it operational for the compute customer. The operating burden inside a $1B valuation. The $1B post-money valuation reflects investor conviction before TAR has disclosed the operating evidence normally used to judge infrastructure at scale. Commissioned capacity, schedule performance, reliability, customer concentration, and project economics therefore carry unusual weight in the company's next chapter. Off-grid power also carries tradeoffs. The IEA's current energy-and-AI analysis says reliable onsite gas generation may require 30% to 70% more installed capacity than demand and notes that turbine supply is constrained. TAR's renewable-and-storage-heavy design may reduce gas use, but the company still has to prove the full system can deliver reliable power through weather, equipment, construction, and operating conditions. The company's hiring plan shows where that burden lands. TAR is recruiting across more than 40 roles in engineering, robotics, power systems, operations, supply chain, and project management. Its named operating leaders include Jeff Silvan, Head of Projects; Christian Sanchez, Head of Power Systems; and Raphael Levy, Head of Supply Chain. What the $120M changes. The Series A gives TAR more control over the resources that determine deployment speed: engineering capacity, manufactured components, field execution, logistics, and the ability to work on multiple sites. It also gives Spark Capital and the returning investors exposure to a layer of AI infrastructure where the product is measured in commissioned megawatts rather than software adoption. TAR's opportunity is to make time-to-power a controllable operating system for data-center developers. Its obligation is to show that vertical ownership creates repeatability rather than simply moving every dependency onto one balance sheet. Customers will experience the answer through live capacity, reliability, and schedule performance, which is where this unusually fast capital curve now has to become physical.

Offshore Source
Sep 10th, 2026
TAR raises $120 million Series A at a $1 billion valuation led by Spark Capital to build off-grid power for AI.

TAR raises $120 million Series A at a $1 billion valuation led by Spark Capital to build off-grid power for AI. AUSTIN, Texas-(BUSINESS WIRE)-TAR, which builds off-grid power systems for AI data centers, today announced a $120 million Series A led by Spark Capital at a $1 billion post-money valuation. The funding will grow its Austin HQ and San Francisco engineering office, expand its West Texas logistics and manufacturing operation, and speed up deployments already underway. Power is an increasingly obvious bottleneck for AI. Interconnection queues run years long, and data center projects keep stalling on grid capacity and local opposition. TAR doesn't ask the grid for anything. It builds self-contained, modular systems of renewable energy generation and batteries in West Texas. Nothing it builds competes with a community for power. TAR is approaching energy deployment differently by verticalizing the entire chain. TAR handles the full process from site selection to detailed engineering and design plans, procurement, logistics, civil works and construction, and full commissioning and ongoing operation. Doing so allows TAR to operate at an unprecedented pace by avoiding coordination across a wide range of slow-moving third parties. Using their purpose-built deployment automation stack, TAR puts up generation capacity faster, at larger scale, and with far less field labor than conventional construction. The team pairs energy veterans from Hut 8, AES and Vistra with robotics engineers from Zipline, GrayMatter Robotics and Lucid Motors. "To lead the frontier of AI after a lack of investment in the electrical grid for decades requires a complete rethinking of energy deployments. Gigawatt-scale deployments in tight time windows necessitate owning the full stack end-to-end," said Pat Becker, co-founder of TAR. "We are excited by the demand from our customers. Our focus now is scaling supply to make a real impact on the power shortage stopping the scaling of compute," said Lenny Soenke, co-founder of TAR. TAR is currently executing a utility-scale deployment in tandem with one of the largest neoclouds, developing a dedicated project campus, and finishing TAR Terminal One, its manufacturing and logistics center in West Texas. "Power is becoming the main bottleneck to scaling compute. We will need innovation, unprecedented speed and exceptional companies unblocking it at every level," said Will Reed, General Partner at Spark Capital. TAR is hiring in Austin and San Francisco across engineering, robotics, power systems, operations, supply chain and project management. Leadership includes Jeff Silvan, Head of Projects (previously Hut 8, ON Energy); Christian Sanchez, Head of Power Systems (Zelestra, AES); and Raphael Levy, Head of Supply Chain (NineDot, Vistra). Open roles at tar.com/careers. TAR builds off-grid power systems for AI data centers at gigawatt scale. Founded by Pat Becker and Leonhard Soenke in 2026, the company is headquartered in Austin, Texas, with engineering in San Francisco and manufacturing in West Texas. Backed by Spark Capital, Buckley Ventures, Align Fund and more. Learn more at tar.com. Press Contact: Diana Vicinanza VSC, on behalf of TAR [email protected] Read the Article on Business Wire: Read More Posted By OffshoreSource

Bloomberg
Sep 10th, 2026
Anthropic Investor Leads Funding for Off-Grid AI Power Startup

A startup that builds off-grid power systems for data centers said it raised $120 million in a Series A funding round led by Spark Capital, an investor in artificial-intelligence developer Anthropic PBC.

Business Wire
Sep 8th, 2026
TAR raises $120 million Series A at a $1 billion valuation led by Spark Capital to build off-grid power for AI.

TAR raises $120 million Series A at a $1 billion valuation led by Spark Capital to build off-grid power for AI. AUSTIN, Texas-(BUSINESS WIRE)-TAR, which builds off-grid power systems for AI data centers, today announced a $120 million Series A led by Spark Capital at a $1 billion post-money valuation. The funding will grow its Austin HQ and San Francisco engineering office, expand its West Texas logistics and manufacturing operation, and speed up deployments already underway. Power is an increasingly obvious bottleneck for AI. Interconnection queues run years long, and data center projects keep stalling on grid capacity and local opposition. TAR doesn't ask the grid for anything. It builds self-contained, modular systems of renewable energy generation and batteries in West Texas. Nothing it builds competes with a community for power. TAR is approaching energy deployment differently by verticalizing the entire chain. TAR handles the full process from site selection to detailed engineering and design plans, procurement, logistics, civil works and construction, and full commissioning and ongoing operation. Doing so allows TAR to operate at an unprecedented pace by avoiding coordination across a wide range of slow-moving third parties. Using their purpose-built deployment automation stack, TAR puts up generation capacity faster, at larger scale, and with far less field labor than conventional construction. The team pairs energy veterans from Hut 8, AES and Vistra with robotics engineers from Zipline, GrayMatter Robotics and Lucid Motors. "To lead the frontier of AI after a lack of investment in the electrical grid for decades requires a complete rethinking of energy deployments. Gigawatt-scale deployments in tight time windows necessitate owning the full stack end-to-end," said Pat Becker, co-founder of TAR. "We are excited by the demand from our customers. Our focus now is scaling supply to make a real impact on the power shortage stopping the scaling of compute," said Lenny Soenke, co-founder of TAR. TAR is currently executing a utility-scale deployment in tandem with one of the largest neoclouds, developing a dedicated project campus, and finishing TAR Terminal One, its manufacturing and logistics center in West Texas. "Power is becoming the main bottleneck to scaling compute. We will need innovation, unprecedented speed and exceptional companies unblocking it at every level," said Will Reed, General Partner at Spark Capital. TAR is hiring in Austin and San Francisco across engineering, robotics, power systems, operations, supply chain and project management. Leadership includes Jeff Silvan, Head of Projects (previously Hut 8, ON Energy); Christian Sanchez, Head of Power Systems (Zelestra, AES); and Raphael Levy, Head of Supply Chain (NineDot, Vistra). Open roles at tar.com/careers. TAR builds off-grid power systems for AI data centers at gigawatt scale. Founded by Pat Becker and Leonhard Soenke in 2026, the company is headquartered in Austin, Texas, with engineering in San Francisco and manufacturing in West Texas. Backed by Spark Capital, Buckley Ventures, Align Fund and more. Learn more at tar.com. Contacts. Press Contact: Diana Vicinanza VSC, on behalf of TAR [email protected] TAR. Release Versions Press Contact: Diana Vicinanza VSC, on behalf of TAR [email protected]

Business Insider
Jun 29th, 2026
Creator economy founders pivot to data centers, raise $27M at $500M valuation to power AI infrastructure

Leonhard Soenke and Patrice Becker, who founded creator economy startup Throne in 2021, have pivoted to launch TAR (Transformative American Resources), a data centre energy startup. The company recently raised $27 million in seed funding at a $500 million valuation from an undisclosed strategic investor. TAR aims to reduce time-to-token for AI models by building modular, behind-the-meter energy systems combining solar, batteries, wind and natural gas. Soenke told Business Insider the shift came from seeking larger impact opportunities, as the creator economy has matured and become crowded. The founders spent six months transitioning Throne to trusted team members before relocating from New York to San Francisco and Austin to pursue the data centre opportunity.