Mechanical Design Engineer (Combustion)
El Segundo, CA
Engineering (Combustion) /
Full Time (Salaried) /
On-site
We are seeking a Mechanical Design Engineer for our Combustion team to own the 3D design of high-temperature, high-pressure hardware from concept through fabrication. You’ll collaborate closely with combustion engineers, analysts, and test engineers to develop practical, test-ready systems. Your work will leverage metal additive manufacturing, precision machining, and algorithmic design techniques to push the boundaries of modern fabrication.
Arbor is a team of engineers, scientists, and builders focused on creating the next generation of clean energy systems. Our work combines high-efficiency turbomachinery, advanced combustion, and modular design to deliver zero-emission, fuel-flexible power at scale. We’ve drawn from aerospace and industrial expertise to meet the challenge of surging electricity demand—and to offer a solution that installs faster, performs better, and costs less than conventional alternatives. We’re designing energy systems that can evolve with the world’s needs.
Responsibilities
- Lead detailed 3D modeling of complex components and assemblies.
- Apply Design for Additive Manufacturing (DfAM) principles to optimize performance, cost, and manufacturability.
- Create complete drawing packages with GD&T, assembly documentation, and bill of materials (BOMs).
- Translate engineering requirements into practical, buildable designs.
- Generate work instructions and collaborate with technicians during builds and test campaigns.
- Continuously iterate based on feedback from analysis, testing, and fabrication.
Requirements
- Bachelor’s degree in Mechanical, Aerospace, or a related Engineering discipline.
- 3+ years of experience in mechanical design of high-performance systems.
- Proficiency in CAD software (Siemens NX preferred; others such as SolidWorks or Creo also acceptable).
- Experience producing fully detailed drawing packages including GD&T and manufacturing specs.
- Experience with additive manufacturing and DfAM principles.
- Understanding of additive constraints: overhang angles, support strategy, build orientation, powder removal, etc.
Preferred Qualifications
- Exposure to material behavior and surface finish considerations in high-temperature AM alloys (e.g., Inconel 625/718, Hastelloy, Haynes).
- Familiarity with FEA or fluid/thermal analysis workflows.
- Prior experience in a fast-paced, hands-on R&D or startup environment.
- Exposure to combustion systems, high-temperature materials, or pressure vessels.
Benefits
- 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!
$130,000 - $150,000 a year
The salary is subject to the applicant's skills, qualifications, and experience.
Arbor 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.
