2026-08

CTO, focus on mechanical engineering in heavy industry

About Terrament

Terrament is building grid-scale energy storage with underground gravity batteries.

Founded in 2020, Terrament is tackling one of our most critical climate challenges: Long Duration Energy Storage. Terrament builds patented underground gravity storage in existing mines to tackle the growing energy crisis driven by data centers and aging infrastructure. We provide inexpensive, utility-scale, off-grid storage to pair with renewables for remote critical mineral mines and data centers needing quick energy. Our low-risk solution is built from only proven technologies like mine shaft drilling and industrial power generators.

Company highlights:

• Accepted into prestigious programs including: CEBIP accelerator, Newlab founder fellowship, Plug & Play Japan, CleanTech Open Accelerator, Venture For Climate Tech, and LACI.
• Won 2 U.S. patents with pro bono legal support from Foley Hoag with 1 patent pending.
• Won many letters of support: Con Edison, National Grid, AERTC, Advisian, Stony Brook University, CEBIP, C-Motive, EPRI, and more.
• Won $500k of U.S. DOE research funding to validate our technical + financial modeling.

Role Description:

Terrament is seeking a CTO with deep experience as a mechanical engineer in heavy industry.

You have 10+ years experience designing and project managing large-scale projects in a heavy industry sector. You’re eager to take on ownership and co-lead the development of our ambitious technology which tackles an emerging $1 trillion global market.

Requirements:

• Masters, or PhD preferred, in Mechanical Engineering. P.E. nice to have.
• 10+ years mechanical engineering experience; with 5+ years in a leadership role.
• Proven track record in large-scale energy projects or heavy machinery design.
• Extensive experience leading engineering teams to deliver products on time, on budget.
• Experience leading a design project from prototype to commercialization.
• Expertise in CAD, simulation, analysis, testing, and design for manufacturing.
• Deep knowledge of manufacturing processes, and supply chain management.
• A desire to define and build the technical team as a hands-on player-coach, with the goal to foster strong, creative culture in your team.
• Entrepreneurial and collaborative mindset with a drive to both innovate and to deliver meticulous products and thrive in an early stage startup.

Compensation will be a mix of salary and equity, to be discussed. The job will be remote to start with the goal of moving to a hybrid role based in either Los Angeles or New York City, and will include some travel to mine sites and conferences. This role will report to the CEO.

Terrament values diversity, and we strive to build teams in which everyone can be their authentic self. We encourage people from underrepresented backgrounds to apply.

Learn more at https://www.terramenthq.com/mission