---
title: 'Sr. NPI Engineer at Antora Energy'
canonical: 'https://feeny.ai/job/sr-npi-engineer-antora-energy-san-jose-59yxdyzm1hcd'
type: 'job'
last_seen: '2026-09-23'
---

# Sr. NPI Engineer at Antora Energy

- **Company:** Antora Energy
- **Location:** San Jose, CA
- **Posted:** 2026-09-21
- **Last confirmed live:** 2026-09-23
- **Apply:** https://job-boards.greenhouse.io/antora/jobs/6201256004

## Job description

Antora Energy delivers affordable, reliable energy to industry, data centers, and the grid. Our thermal batteries turn low-cost electricity into always-on heat and power, without supply-constrained critical minerals or multi-year construction timelines.

We are growing our company with people who put team and mission first, value connection through laughter and joy, and work with humility and openness. We are committed to building a diverse, passionate, and creative team dedicated to a future powered by abundant, clean, low-cost energy.

Position Summary

Antora is scaling production while preparing the newest generation of our product and a new gigafactory to build it in. We are looking for an engineer who can take a product concept and carry it all the way to a running process: define the build sequence, design the process and the custom tooling that enables it, and integrate it on the floor. Someone who takes full ownership of that arc, starts to finish, working closely with design engineering, production, and the technicians who will build with what they create. This is a hands-on design role: you will personally design, analyze, and release the fixtures, work cells, and safety-critical lifting and handling equipment that production runs on. The tooling and processes you design will set production rates, enable new product launches, and shape the next-generation build process before the factory around it is committed.

Roles & Responsibilities

Develop the next-generation production process, tooling, and equipment

- Partner with design engineering to define the build sequence from the product concept
- Review product designs early, from concept reviews onward, and drive manufacturability into them before designs harden
- Lead process, tooling, and workcell design for your subsystems, carrying designs from concept through analysis, detailed design, and release
- Develop the associated work instructions and PFMEAs

Support the new gigafactory launch

- Translate the production process into facility requirements: layout, material flow, workstation footprints, and tooling and equipment needs
- Partner with factory planning and capital equipment owners through launch

Own station scope and strengthen the current line

- Own your stations through production support and as products evolve through new versions
- Develop and integrate production test processes and rigs: implement design-defined test requirements on the line while maintaining takt, line balance, and rework access
- Share in the team's standing work: EVT build support, process plan and work instruction releases, change incorporation, issue triage and root cause, tooling upkeep, and equipment commissioning
- Improve safety through partnership with production and EH&S

Contribute to Antora's culture

-

- Put team and mission first
- Invite critique early and treat feedback as material that strengthens the work
- Be someone technicians and engineers want building next to them

## Key Qualifications

- Bachelor's degree in Mechanical, Manufacturing, or Industrial Engineering, or equivalent practical experience
- 5+ years in manufacturing or NPI engineering, including personally designing tooling and equipment for a production environment
- Proven ability to take products from concept to build sequence to running process, with designs carried through detailed design, GD&T, and formal change control
- Structural analysis capability: FEA and hand calculations applied to real hardware, with sound judgment on loads, factors of safety, and safety-critical equipment
- Grounded in DFM, lean manufacturing principles, and PFMEA and work instruction development
- Strong cross-functional collaborator, decisive with incomplete information, and comfortable in a fast-moving startup environment
- Ability to travel domestically as needed, up to approximately 25% during factory launch periods, with typical travel expected to be significantly lower

Additional Qualifications Desired

- Experience launching a new factory or production line from the ground up, including capital equipment specification and vendor-built tooling
- Experience developing production test systems and validation methods
- Experience with MES/PLM systems, BOM structuring, and formal change management in a production environment
- Experience with battery, energy storage, or other thermally or electrically demanding hardware products

Work Location:  Onsite - San Jose, CA

Salary Range:  $121,000 USD - $170,000 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.

#LI-Onsite https://diversityjobs.com/employer/top-diversity-employers?utm_campaign=TopEmployer&utm_medium=badge  When it comes to stopping climate change, we need everyone. We believe that having a diversity of backgrounds and experiences strengthens all of us, and we strive to create an environment where every one of us is empowered to create meaningful change.

## About Antora Energy

## Company Overview
- **One-liner**: Antora Energy manufactures and deploys modular thermal batteries that convert low-cost, intermittent clean electricity into reliable, always-on heat and power for global industrial facilities and data centers.
- **Entity Type**: Private (Series B)
- **Headquarters**: San Jose, California, United States
- **Founded**: 2018
- **Founders**: Justin Briggs, Andrew Ponec, David Bierman

## Core Business
- **Primary industry/industries**: Renewable Energy Power Generation, Thermal Energy Storage, Industrial Decarbonization
- **Target customers**: Large-scale industrial energy users (biofuels, refining, pulp & paper, steel & iron, chemicals, mining, concrete & lime, food & beverage) and data center operators (B2B, Enterprise).
- **Mission or purpose statement**: “We are here to power global industry with clean energy.” The company aims to make cheap, clean energy the standard that powers global industry.

## Products & Services
- **Thermal Battery System**: A modular, factory-built energy storage system that uses solid carbon (one of the safest, most stable materials on earth) to store surplus clean electricity as heat. It delivers always-on heat and power for industrial operations, scales from megawatts to gigawatts, and is designed for low cost, rapid deployment, and massive scale.
- **Project Big Stone**: One of the largest battery storage systems in the world, deployed in under 12 months for POET, the world’s largest biofuels producer. It delivers affordable, reliable energy and serves as a proof-of-concept for the company’s giga-scale deployment model.

## Market Standing
- **Valuation/Market Cap**: Not publicly available.
- **Key Metric**: Total funding of **$220.0M** across 10 rounds, including a $150M Series B led by Decarbonization Partners (Feb 2024). Annual revenue estimated at **$7.7M**.
- **Notable Investors/Partners**: Decarbonization Partners, National Science Foundation, California Energy Commission. Key partner: POET (biofuels).
- **Growth Signals**: 197 employees (+36.6% YoY), 31,700 LinkedIn followers (+42.9% YoY), active job postings up 140% YoY. The company is building gigawatt-hours of thermal batteries annually at its U.S. factory and has a presence in Spain.

## Competitive Advantages
- **Proprietary Technology**: Uses solid carbon thermal storage—a simple, safe, and low-cost material—to provide both heat and power, differentiating from chemical battery or molten salt solutions.
- **Modular & Factory-Built**: Modules are manufactured in a U.S. factory, enabling rapid deployment, seamless integration, and operational redundancy at any scale.
- **Speed to Market**: Project Big Stone advanced from an empty lot to energy delivery in under 12 months, demonstrating a fast deployment model that can be replicated globally.
- **Multi-day Storage**: Provides reliable energy for industrial operations where downtime is not an option, solving the intermittency problem of renewables.

## Strategic Focus
- **Scale and Replicate**: Replicating the Project Big Stone model at factories and data centers across the U.S. and globally.
- **Giga-scale Manufacturing**: Expanding factory capacity to produce gigawatt-hours of thermal batteries each year, with a focus on American manufacturing.
- **Market Expansion**: Targeting hard-to-abate industrial sectors (steel, cement, chemicals) and data centers, while expanding internationally (e.g., Spain).
- **Cost Leadership**: Driving down costs to make cheap, clean energy the standard for global industry.

## Why Work Here
- **Mission-Driven Work**: The company’s north star is to power global industry with clean energy, offering employees a chance to work on one of the most urgent climate challenges.
- **Culture**: Values include “Build with Humility & Openness,” “Team & Mission First,” and “Joy & Laughter Connect Us.” The company emphasizes kindness, collaboration, and learning from setbacks.
- **Work Environment**: Hybrid/remote-friendly with “Home Week” each quarter to bring in-person and remote team members together. Offices in San Jose, CA; Big Stone City, SD; and remote roles in the U.S.
- **Benefits**: Competitive salary, stock options, 401k match, 16 weeks paid parental leave, comprehensive medical/vision/dental, HSA with employer contribution, subsidized backup childcare/senior care/petcare, mental health support, on-site gym, healthy snacks, and volunteer time off.
- **Engineering & Impact**: Teams work on cutting-edge thermal storage, manufacturing, and field engineering. The company is growing fast (36% headcount growth) and offers the chance to shape a new industry.

## Sources
1. [antora.com](https://www.antora.com/)
2. [antora.com/company](https://www.antora.com/company)
3. [antora.com/careers](https://www.antora.com/careers)
4. [linkedin.com/company/antora-energy](https://www.linkedin.com/company/antora-energy)
5. [cbinsights.com/company/antora-energy](https://www.cbinsights.com/company/antora-energy)

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