Sr. Combustion Engineer (Syngas Oxyfuel)

Role Overview

The Sr. Combustion Engineer (Syngas Oxyfuel) helps pioneer our rocket-derived, high-pressure combustion systems for carbon-negative power cycles, burning our biomass-produced syngas in a high efficiency combustor.

In this role, you'll take syngas oxy-combustion from lab-scale characterization to implementation running off of gasifier syngas within a year and carry what you learn into the development of fuel-flexible combustors at the heart of our commercial product. You will partner closely with test engineers, analysts, and designers to push boundaries-delivering breakthrough performance that powers a sustainable future.

From conceptual design and modeling to hands-on testing and rapid iteration, you'll own the full hardware lifecycle.

This is an onsite opportunity in our El Segundo, CA office.

Responsibilities

• Develop the kinetics that the envelope demands: reduced H /CO/CO mechanisms, flame-speed, autoignition and blowout limits across composition; anchor models to hot-fire data
• Plan, execute, and analyze high-pressure and temperature test campaigns, delivering actionable insights to accelerate progress
• Own rapid hardware development cycles-from manufacturing and assembly through testing and iterative improvements
• Leverage additive manufacturing and state-of-the-art simulation tools to accelerate innovation and reduce development timelines

Requirements

• Bachelor's degree in Mechanical, Aerospace, Chemical engineering, or related field
• 5+ years of experience in combustion system design, analysis, and testing
• Strong understanding of thermodynamics, fluid mechanics, and heat transfer
• Comfort in high-pressure / real-fluid combustion (supercritical reactants, CO dilution) and/or a demonstrated track record of ramping into an unfamiliar regime fast
• Curious, inventive, and entrepreneurial mindset comfortable driving progress

Preferred Qualifications

• Advanced degree (M.S. or Ph.D.) in Mechanical, Aerospace or Chemical engineering
• Hands-on experience with hot-fire testing and high-pressure systems in rocket or gas turbine environments
• Programming or scripting skills for data reduction and automation (Python, MATLAB, etc.)
• Background in startup environments or agile hardware development cycles

Benefits & Compensation

• Pre-IPO 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)
• Commuter benefits
• Annual learning and development stipend
• And more!

Base Pay

$150,000 - $175,000 USD/year. The salary is subject to the applicant's skills, qualifications, experience, and geographic location.