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Antora Energy

Senior Plant Engineer, Mechanical & Process

Become a Senior Plant Engineer at Antora Energy in San Jose, California. Focus on optimizing balance of plant systems for cost and performance in innovative thermal energy storage projects. Enjoy competitive salary, equity options, and a comprehensive benefits package including health insurance and generous paid time off.
Antora Energy
Antora Energy
San Jose, California, United States   On-site   Full Time   USD 104k–155k yearly  UTC-08:00

Antora Energy

Company Overview

Antora Energy

Sunnyvale, CA, United States

2018

Employee count is not publicly specified, and as a private company, no revenue figures are disclosed for 2023 or later (source: cbinsights.com).

What They Do

Antora Energy is a pioneering private renewable energy company that specializes in thermal energy storage solutions aimed at decarbonizing industrial heat and power. Founded by a team of experts with advanced degrees from Stanford and MIT, the company focuses on innovative technologies such as thermophotovoltaics (TPV) and scalable energy systems. Their core product is a modular thermal battery that stores renewable electricity as heat in solid carbon blocks, which can be heated to extremely high temperatures for multi-day storage and then discharged as industrial heat or electricity (source: research.contrary.com; antora.com).

The technology is designed to address the significant emissions produced by the industrial sector, which accounts for nearly one-third of global emissions. Antora's thermal batteries are capable of achieving over 40% heat-to-electricity conversion efficiency, making them a cost-effective alternative to traditional energy storage solutions. The company targets heavy industries such as chemicals, mining, food and beverage, oil and gas, cement, and steel, providing solutions that require continuous high-temperature heat and power (source: energy.mit.edu; antora.com).

Antora differentiates itself from competitors by offering dual heat and power output, high efficiency of TPV cells, and the ability to operate at extreme temperatures. Their manufacturing operations are based in the United States, ensuring quality and reliability in production. The company also employs a Heat-as-a-Service model, allowing clients to avoid upfront capital costs by installing batteries and purchasing heat or electricity under long-term contracts (source: antora.com; cbinsights.com).

Projects & Track Record

In 2023, Antora Energy successfully commissioned its first commercial-scale thermal battery, a 5 MWh system located near Fresno, California. This project, developed in partnership with Wellhead Electric, is notable for being the world's first operational thermal battery utilizing carbon blocks and TPV technology, providing continuous industrial heat and power. This pilot project marks a significant milestone in Antora's journey towards commercial deployment across various sectors, with plans for future projects in industries such as chemicals, mining, food and beverage, and oil and gas, some of which are expected to be operational by 2025 (source: research.contrary.com; energy.mit.edu).

Additionally, Antora opened a state-of-the-art 50,000 square foot manufacturing facility in San Jose, California, in 2023, which is recognized as the world's largest TPV manufacturing operation. This facility is designed to produce TPV cells and assemble batteries, with an annual capacity of 2 megawatts, further solidifying Antora's position as a leader in thermal energy storage technology (source: cbinsights.com; research.contrary.com).

Recent Developments

Antora Energy has made significant strides in recent years, including raising $150 million in a Series B funding round in early 2024, led by Decarbonization Partners, which includes BlackRock and Temasek. This funding brings the company's total equity funding to approximately $204.73 million, aimed at scaling thermal battery production to meet the growing demand for zero-emissions energy solutions. In 2023, the company also launched its commercial-scale batteries and received over $4 million in grants from the California Energy Commission and ARPA-E to support its TPV expansion efforts (source: antora.com; cbinsights.com).

Moreover, Antora's innovative technology earned recognition in 2023, winning TIME’s Best Inventions and Fast Company’s World Changing Ideas awards, highlighting the impact of their thermal battery solutions on the renewable energy landscape. The merger with Medley Thermal has also enhanced Antora's capabilities by integrating software solutions for industrial boiler systems, further improving deployment efficiency (source: research.contrary.com).

Working There

Antora Energy offers a range of career opportunities across various departments, including engineering, software integration, commercial operations, and research and development. The company is particularly focused on hiring talent to support its manufacturing operations and project deployments, with job openings primarily located in their Sunnyvale and San Jose offices. The culture at Antora emphasizes rapid iteration and collaboration among a team of professionals with backgrounds from prestigious institutions like Stanford and MIT, fostering an environment that is mission-driven and focused on deploying large-scale battery solutions globally (source: climatetechlist.com; research.contrary.com).

While specific employee benefits are not extensively documented, the company's Heat-as-a-Service model and focus on long-term operations suggest a commitment to stability and predictability for its workforce. Antora's emphasis on creating jobs in the US is also highlighted in their funding announcements, reflecting their dedication to contributing positively to the local economy (source: antora.com).

Contact


Last updated on 2025-12-27 | Report an issue

Antora builds and deploys thermal batteries to power always-on industrial operations with low-cost energy. Factory-built in the United States, Antora's modular thermal batteries deliver reliable heat and power, enabling industrial facilities of any size to decarbonize predictably and profitably. Antora is electrifying global industry while supporting U.S. manufacturing jobs, lowering costs for energy consumers, and enhancing the competitiveness of American industry.

We are growing our company with people who put team and mission first, value connection through laughter and joy, and build with humility and openness. We are committed to continue building a diverse, passionate, and creative team dedicated to a future where every industrial facility, everywhere on earth, is powered by abundant, clean, low-cost energy.

Position Summary

We are seeking a self-driven, passionate Mechanical/Process Engineer to help deliver zero-carbon industrial heat and power through our novel solid-state thermal battery to work out of our location in San Jose, California. You'll join a close-knit engineering team that values impact, humility, and collaboration, and that takes pride in building lasting relationships while tackling hard problems.

In this role, you will play a central part in optimizing Antora's balance of plant (BOP) systems for both cost and performance. You will develop, own, and continuously refine cost models that integrate data from a wide range of technical and commercial sources. These models will serve as a core, iterative tool to guide the design and evolution of cost-optimized, high-performance plant processes and mechanical and electrical architectures.

You will also scope, define, and design BOP systems and equipment for Antora's commercial thermal energy storage projects. As a key technical contributor within a fast-growing, cross-functional organization, your work will directly support the testing, deployment, and scaling of an innovative long-duration energy storage technology.

Roles & Responsibilities

  • Create and own models for equipment, system and plant costs; continuously update models as data is gathered from our constructed projects
  • Perform engineering trade-off case studies that balance performance, cost, and schedule to drive architectural alignment via quick (spreadsheet) and thorough (model-based) approaches.
  • Work hand-in-hand with other engineering teams (SW/controls, battery engineering, project execution, etc.) at Antora to develop the simplest, lowest-cost, highest performing BOP system
  • Define and own system process requirements and specifications, including heat & mass balance (HMB), Process Flow Diagrams (PFD), and Process & Instrumentation Diagrams (P&ID).
  • Review cross functional team designs (equipment specs, piping design, etc) to ensure they meet the process requirements.
  • Participate in PHAs, HAZOP, and/or HAZID workshops.

Key Qualifications

  • Bachelors or equivalent in an engineering field (e.g. chemical, mechanical, process, industrial, etc.) and 8+ years' experience in industrial applications engineering (oil & gas, chemicals, power plants, etc.)
  • Experience designing or specifying industrial mechanical equipment such as: Pressure Vessels, Pumps, Heat Exchangers, Air Coolers, Fans, Tanks, Piping, Valves.
  • Working knowledge of industrial mechanical design codes. ASME Section I and VIII, Div. 1, ASME B31.1 and B31.3, API 650, API 610, TEMA, ASTM.
  • Working knowledge of electrical power distribution systems.
  • Critical thinking and problem solving skills, ability to think about problems from a first-principles perspective
  • Experience working independently, as well as work in a team-orientated and fast-paced startup-like environments
  • Proven ability to lead and operate comfortably across many engineering disciplines (e.g. mechanical, electrical, thermal, fluids, optical, controls)

Additional Qualifications Desired "Nice to have" but not required

  • Deep engineering experience and intuition, ideally with background in: High-temperature thermal systems, Energy and power conversion, First principle engineering analyses
  • Use of one or more of AutoCAD, Solidworks, COMSOL, ANSYS, Chemcad, Aspen EDR, HYSYS, HTRI
  • Holds a PE in a related discipline

Work Location: Onsite - San Jose, CA

Salary Range: $104,000 USD - $155,000 USD

Salary Basis: Annual

Please note that the salary range listed above reflects Antora Energy's estimated pay for this position. The actual salary offered will be within the posted range and determined based on several factors including but not limited to a candidate's experiences, credentials and expertise, as they pertain to the position's requirements.

In addition to a competitive base salary, Antora Energy's Total Rewards program includes equity compensation in the form of stock options, a premium health benefits package with life and disability insurance, a 401K plan with employer contributions, flexible spending accounts, and an industry leading paid-time-off policy that features flexible and inclusive holiday observance, as well as paid volunteer time off.

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About the role

January 6, 2026

Full Time

Company

January 6, 2026

On-site

USD 104k–155k yearly

Antora Energy

  •  San Jose, California, United States

8+ years in industrial applications engineering

UTC-08:00

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