Fast-Iterating Mechanical Engineer — Rapid Prototyping

HireArt; San Francisco (CA); On-site; USD 90,000 - 130,000; Full time

Job summary

HireArt is seeking a Mechanical Engineer, Rapid Prototyping in San Francisco, CA to turn ideas into physical hardware quickly. You will spin up 3D printed parts, CNC'd components, and other rapid-build methods to accelerate learning and decision-making.

The ideal candidate excels at CAD, thinks in tolerances for manufacturability from sketch to build, and thrives when a design is built within days rather than months.

Qualifications

• Strong CAD skills and ability to model complex parts quickly.
• Hands-on experience with 3D printing and CNC machining.
• Track record of fast prototyping cycles; bring concepts to physical hardware quickly.
• Knowledge of materials selection for prototyping vs production.
• Comfort in a lab/shop environment and hands-on building approach.
• Knowledge of GD&T and tolerances is a plus.

Responsibilities

• Design mechanical parts and assemblies in CAD, moving quickly from concept sketch to a build-ready file.
• Partner with the lab manager to plan rapid prototyping spins—3D printing, CNC machining, laser cutting, and other quick-turn methods.
• Choose fastest path to a testable prototype with appropriate material and fidelity.
• Design for manufacturability and printability/machinability from the outset.
• Build, assemble, and bench-test prototypes; be hands-on in the lab/shop.
• Run multiple concurrent design threads and adjust priorities based on test results.
• Maintain lightweight documentation (revisions, BOMs, test notes) for traceability.
• Collaborate with electrical, firmware, and product teams to incorporate constraints.

Skills

CAD

3D printing

CNC machining

DFM

Design iteration

Education

Bachelor's degree in Mechanical Engineering

Tools

SolidWorks

Fusion 360

Onshape

Job description

HireArt is seeking a Mechanical Engineer, Rapid Prototyping in San Francisco, CA to turn ideas into physical hardware quickly. You will spin up 3D printed parts, CNC'd components, and other rapid-build methods to accelerate learning and decision-making.

The ideal candidate excels at CAD, thinks in tolerances for manufacturability from sketch to build, and thrives when a design is built within days rather than months.