Combustion Analysis Engineer

Arbor’s team of world-class engineers and scientists are developing a scalable, low-cost approach to Bioenergy with Carbon Capture and Storage (BECCS) based on modern rocket engine technology. BECCS is a carbon dioxide removal (CDR) approach that uses biomass to produce energy and remove CO₂ from the atmosphere and store it permanently underground, while ensuring food security, rural livelihoods, and biodiversity are not affected. Our modular technology leverages the power density of supercritical CO2 to enable compact gasification, oxy-combustion, and high-pressure turbo-expansion to convert abundant waste biomass into clean electricity, water, and high-purity CO2, capturing and sequestering all emissions from the process.  Our team brings together a passion for science, technology, and global stewardship to make low-cost, high-quality carbon removal and baseload power a reality.

We're looking for a Combustion Analysis Engineer to perform fluid, thermal, and structural analyses on our novel combustion systems—bringing high-performance engineering to the fight against climate change. You'll work closely with combustion engineers and designers to inform and accelerate development using advanced simulation tools, algorithmic workflows, and additive manufacturing. Your work will help bridge modeling and reality through system integration and hot-fire test validation.

Responsibilities

• Perform CFD, transient thermal, and structural analyses on combustion hardware.
• Collaborate with combustion and mechanical engineers to develop practical, testable designs.
• Use integrated system models to inform design direction and support performance prediction.
• Help anchor simulation results with hot-fire test data and iterate models accordingly.
• Contribute to a fast-paced, collaborative team with a focus on climate-impactful technology.

Requirements

• Bachelor’s degree in Mechanical, Aerospace, or related Engineering field.
• 3+ years of experience in fluid dynamics, CFD, and transient thermal analysis.
• Strong foundation in compressible and incompressible fluid mechanics.
• Experience with CFD tools like StarCCM+, ANSYS CFX, or FLUENT.
• Proficient in Python, MATLAB, or similar scripting tools for automation and post-processing.
• Strong ownership mentality and eagerness to work collaboratively in a small, dynamic team.

Preferred Qualifications

• 5+ years of experience in propulsion or combustion analysis.
• Master’s or Ph.D. in Mechanical, Aerospace, or Electrical Engineering.
• Experience working in startup or agile development environments.
• Familiarity with conjugate heat transfer simulations.
• Interest in or ability to lead and grow a small analysis team over time.

Arbor is an equal-opportunity employer.  We never discriminate on the basis of race, religion, national origin, gender identity or expression, sexual orientation, age, or marital, veteran, or disability status. Building a global solution to this global problem will require humans of all varieties to contribute diverse ideas and experiences, so we have put finding and hiring qualified individuals from underrepresented groups at the top of our priority list.