Sr. Mechanical Engineer (Gasification)

Arbor Energy; El Segundo (CA); On-site; USD 150,000 - 175,000; Full time

Benefits offered by this job

Stock options

Health insurance

Life insurance

HSA matching

FSA

Unlimited PTO

Holidays

401(k)

Learning stipend

Job summary

Arbor Energy is seeking a Sr. Mechanical Engineer (Gasification) to lead development, testing, and optimization of our biomass gasification systems. You will own the electro‑mechanical and thermal design challenges, guiding a hands‑on team from concept through validation.

Based in El Segundo, CA, you’ll collaborate across engineering disciplines to scale from demonstration to pilot and beyond. You will thrive in a startup‑style environment with rigorous work and lasting impact, contributing to

Qualifications

• Bachelor’s degree in Mechanical, Aerospace, Chemical Engineering or related field.
• 7+ years of experience in combustion system design, analysis, and testing.
• Experience with electro-mechanical and/or chemical conversion systems.
• Strong understanding of thermodynamics, fluid mechanics, and heat transfer.
• Hands-on experience with high-temperature and pressure equipment.
• Demonstrated ability to own product lifecycle from conceptual design to validation.

Responsibilities

• Execute design, procurement, assembly, testing and operation of high‑pressure solids feed and removal hardware.
• Contribute to 3D modeling, structural analysis, fabrication drawings and PFD’s / fluid P&ID’s as well as test plans and procedures.
• Find robust, cost‑effective solutions to solve Arbor’s electro‑mechanical, thermal, and fluid system design problems.
• Manage large assembly BOMs and work across departments to deliver project results.

Skills

Mechanical engineering

Team collaboration

Problem solving

Analytical thinking

Hands-on troubleshooting

Education

Bachelor’s degree in Mechanical, Aerospace, Chemical Engineering

Master’s degree (preferred)

Tools

3D modeling

Structural analysis

PFDs / P&ID

Job description

At Arbor Energy & Resources Corporation ("Arbor Energy"), we’re creating technology to power our lives while protecting the planet that sustains them. Our advanced power systems deliver clean, reliable baseload electricity with zero operating emissions—modular, fuel-flexible, and engineered for the realities of today’s energy demand. At the core is a supercritical CO₂ turbine with integrated carbon capture, designed to bring carbon-neutral power online quickly at meaningful scale.

Our team includes aerospace engineers, combustion experts, and systems thinkers with a shared goal: to build technology worthy of the world we want to live in. While many of us began our journeys looking to the stars, we’re applying that expertise here at home to deliver dependable, emission-free baseload power and a future of lasting abundance.

If you share our values and are drawn to rigorous work with lasting impact, we’d love to learn more about you. Come build what the future will run on.

Steward our planet: We build for tomorrow, ensuring every bolt we tighten and every hand we lend leaves our environment stronger than we found it.

Lead with Love: We champion the success of our people, partners, and planet, nurturing excellence through camaraderie and rigor.

Explore the Uncharted: We embrace the unknown with curiosity, using courage and discipline to transform uncertainty into opportunity.

Role Overview

At Arbor Energy & Resources Corporation (Arbor Energy), we’re creating technology to power our
lives while protecting the planet that sustains them. Our advanced power systems deliver clean,
reliable baseload electricity with zero operating emissions—modular, fuel-flexible, and engineered
for the realities of today’s energy demand. At the core is a supercritical CO₂ turbine with integrated
carbon capture, designed to bring carbon-neutral power online quickly at meaningful scale.

Our team includes aerospace engineers, combustion experts, and systems thinkers with a shared
goal: to build technology worthy of the world we want to live in. While many of us began our journeys
looking to the stars, we’re applying that expertise here at home to deliver dependable, emission-free
baseload power and a future of lasting abundance.
If you’re drawn to rigorous work with lasting impact, we’d love to hear from you. Come build what the
future will run on.

We are seeking a Sr. Mechanical Engineer (Gasification) to take ownership of the development, testing, and
optimization of our novel biomass gasification systems, solids feed and removal systems, and
feedstock pretreatment systems to enable reliable, high efficiency conversion as we scale from
demonstration to pilot and beyond. As a core member of a small, hands‑on gasification team, you’ll
guide daily operations, exe

Responsibilities

• Execute design, procurement, assembly, testing and operation of high‑pressure solids feed and removal hardware.


• Contribute to 3D modeling, structural analysis, fabrication drawings and PFD’s / fluid P&ID’s as well as test plans and procedures .


• Find robust, cost‑effective solutions to solve Arbor’s electro‑mechanical, thermal, and fluid system design problems .


• Manage large assembly BOMs and work across departments to deliver project results .

Requirements

• Bachelor’s degree in Mechanical , Aerospace, Chemical Engineering, or related field .


• 7+ years of experience in combustion system design, analysis, and testing .


• Experience with electro‑mechanical and/or chemical conversion systems .


• Strong understanding of thermodynamics, fluid mechanics, and heat transfer .


• Hands‑on experience with high‑temperature and pressure equipment .


• Demonstrated ability to own product lifecycle from conceptual design to validation.

Preferred Qualifications

• Master’s degree in Mechanical , Aerospace, Chemical Engineering, or related field.


• Experience with biomass or solids conveyance and feeding systems .


• Knowledge of chemical kinetics and fuel property effects on combustion behavior .


• Programming or scripting skills for data reduction and automation (Python, MATLAB, or similar ) .


• Experience working in startup or experimental R&D environments .

$150K - $175K a year,subject to applicant’s skills, qualifications, and experience

• Stock options


• Medical, dental, and vision insurance (Arbor covers 90% for employees)


• Basic life insurance fully covered


• Health savings account (HSA) with matching


• Flexible savings account (FSA)


• Unlimited PTO


• 12+ company holidays, including Earth Day!


• 401(k)


• Annual learning and development stipend


• And more!

Our Commitment

Arbor Energy is proud to be an equal opportunity employer. We evaluate qualified applicants without regard to race, religion, national origin, gender identity or expression, sexual orientation, age, marital or veteran status, disability, or any other protected characteristic under applicable law. Solving global energy challenges requires a wide range of perspectives and experiences, and we are committed to building a team that reflects the world we serve.

Our hiring process is designed to be accessible, fair, and focused on the work that matters most for this role. Reasonable accommodations are available throughout the hiring process and employment—please let us know if you need one.

Voluntary Self-Identification

For government reporting purposes, we ask candidates to respond to the below self-identification survey.Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiringprocess or thereafter. Any information that you do provide will be recorded and maintained in aconfidential file.

As set forth in Arbor Energy’s Equal Employment Opportunity policy,we do not discriminate on the basis of any protected group status under any applicable law.

If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection.As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measurethe effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categoriesis as follows:

A \"disabled veteran\" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service‑connected disability.

A \"recently separated veteran\" means any veteran during the three‑year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service.

An \"active duty wartime or campaign badge veteran\" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense.

An \"Armed forces service medal veteran\" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985.