Prototype Machinist (CNC)

Bellwether Coffee•Berkeley, CA

1d•Onsite

About The Position

Headquartered in Berkeley, CA, Bellwether Coffee is working to positively transform the coffee industry by making coffee roasting more accessible and sustainable. Our revolutionary electric, ventless commercial coffee roaster does not require gas lines or expensive ventilation. It’s the most consistent and controllable roaster available, has the lowest carbon footprint of any commercial roaster ever made, and was designed by coffee people who want a better future. Our roasting platform allows Bellwether customers to easily and responsibly source green coffee from incredible coffee farms around the world, expertly roast using artisan-crafted roast profiles, and share fresh, delicious coffee! This role will report to the Director of Hardware Engineering. We're looking for a hands-on CNC machinist to help us make prototype parts fast, so our engineers can test ideas and get them into production. It's a small shop, so you'll set up your own jobs, write your own programs, check your own parts, and tell us when a design won't work. We're open to part-time or full-time for the right person.

Requirements

Years of hands-on time on HAAS 3-axis mills: setup, running, and troubleshooting on the machine
Strong CAM programming in Autodesk Fusion
Ability to program complex 3D parts on a 3-axis machine, including multiple setups and custom fixturing
Lots of experience machining stainless steel and aluminum, including choosing tools and feeds for each
Experience running Haas High Speed Machining (HSM), including setting G187 smoothness and accuracy for roughing and finishing passes
Experience holding tight tolerances and inspecting with hand measuring tools
Strong communicator and collaborator, comfortable working across cross-functional teams
Self-starter and operates with urgency
Takes ownership and embraces accountability with the ability to manage tasks with minimal supervision
Authorized to work in the U.S. without Visa Sponsorship

Nice To Haves

Experience assembling, wiring, or debugging electromechanical prototypes (harnesses, sensors, motors, heaters)
4th-axis or 5-axis experience
Hand-editing G-code at the HAAS control
Wire EDM or surface grinding
Manual mill, lathe, and saw experience
Enough GD&T knowledge to push back on a drawing
Sheet metal, food equipment, or appliance experience

Responsibilities

Program, set up, and run HAAS 3-axis mills to make prototype and short-run parts
Write toolpaths in Autodesk Fusion, including 3D contours and freeform surfaces
Read drawings and models (including GD&T) and figure out how to hold and cut the part
Choose tools, fixtures, speeds, and feeds to hit tolerance and finish
Check parts with calipers, mics, gauges, etc., during and after the run
Fix problems when parts or programs don't come out right, and improve the process over time
Work with mechanical engineers on design-for-manufacturing and prototype builds
Keep the shop safe, clean, and organized, and keep machines maintained