Bachelor's degree in Mechanical, Aerospace, or related Engineering discipline
3+ years of experience in mechanical design of high-performance systems
Proficiency in CAD software (Siemens NX preferred; others acceptable)
Experience producing detailed drawing packages including GD&T
Familiarity with additive manufacturing and DfAM principles
Understanding of additive manufacturing constraints
Responsibilities
Lead detailed 3D modeling of complex components and assemblies
Apply Design for Additive Manufacturing (DfAM) principles to optimize performance
Create complete drawing packages with GD&T and assembly documentation
Translate engineering requirements into practical, buildable designs
Generate work instructions and collaborate with technicians during builds
Continuously iterate based on feedback from analysis, testing, and fabrication
Benefits
Pre-IPO stock options
Medical, dental, and vision insurance (90% covered by Arbor)
Basic life insurance fully covered
Health savings account (HSA) with matching
Unlimited PTO
12+ company holidays, including Earth Day
Annual learning and development stipend
Full Job Description
Role Overview
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.
This is an onsite opportunity in our El Segundo, CA office. 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.
Compensation & Benefits
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: $130,000 - $150,000 USD/year. The salary is subject to the applicant's skills, qualifications, experience, and geographic location.
