CNC Machinist & Prototyping Lead — On-site SF

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

Job summary

TAR in San Francisco designs and builds the world’s first off-grid power plant for data centers powered by renewables. We are seeking a shop tech manager to operate and manage CNC milling and digital fabrication, starting with the Tormach 1100MX and CAD-based programming.

You will work hands-on in a fast-paced hardware environment, turning concepts into prototypes and manufacturable parts while collaborating with engineers to meet aggressive timelines.

Qualifications

• Hands-on experience with Tormach (or similar VMC).
• Comfortable with CAM programming and basic G-code edits.
• Experience across manual machining and digital fabrication.
• Prototype/R&D mindset with rapid iterations.
• Welding, sheet metal, or composites experience is a plus.

Responsibilities

• Set up and run our Tormach 1100MX CNC mill: fixturing, tool changes, offsets.
• Program parts from CAD (Fusion 360 or CAM).
• Operate CNC and manual machining equipment: lathe, bandsaw, drill press, grinders.
• Run our digital fabrication tools: 3D printers, laser cutter, waterjet.
• Use general shop and fabrication equipment as needed.
• Turn around one-off prototype parts quickly, speed over polish.
• Inspect parts with metrology tools, hold reasonable tolerances, flag design issues.
• Keep tooling stocked, machines maintained, and the shop clean and safe.

Skills

Tormach experience

CAM programming

G-code edits

Manual machining

Digital fabrication

Prototype/R&D mindset

On-site SF

Tools

Tormach 1100MX

ALD plasma table

Hydraulic press brake

3D printers

Laser cutter

Waterjet

Bandsaw

Lathe

Drill press

Grinders

Job description

TAR in San Francisco designs and builds the world’s first off-grid power plant for data centers powered by renewables. We are seeking a shop tech manager to operate and manage CNC milling and digital fabrication, starting with the Tormach 1100MX and CAD-based programming.

You will work hands-on in a fast-paced hardware environment, turning concepts into prototypes and manufacturable parts while collaborating with engineers to meet aggressive timelines.