Welder-Fabricator (Flex Operator)

About Fab2

Fab2 is building a small, fast semiconductor fab.

It’s already possible to build this with today’s technology and a few simplifications. We’ll build the tools ourselves so we can quickly iterate and improve.

We’re building a small team of exceptional, hands-on engineers to make this happen. Mechanical, electrical, hardware, computer, and process. We’ll own the stack from atoms to architecture. Our team is optimistic about the future and we want to continue pushing the limits of technology.

Smaller is better. Faster is better. Building it ourselves is better.

We believe our team and lab can build anything. We’ve set up 3D printers, a wide array of microscopes, e-beam writers, general fabrication equipment - and whatever is missing, we’ll just invent along the way.

Fab2 was founded by Sam Zeloof and Jim Keller. Sam is best known for making chips in his garage, and Jim has been a leader in the semiconductor industry for the past 40 years.

About the team

The Fab2 production team manufactures chip fabs. From deposition and etching tools to lithography and metrology, we are building every tool ourselves. We fabricate the metal parts, operate SMT lines to build PCBAs, and assemble the tools in-house.

About the role

This role sits within the overall Production team. Given that sheet metal, tube bending, and TIG welding all feed each other on the cube, we are excited to be adding cross-trained flex operators who can run any of the fabrication cells as the daily mix shifts.

Responsibilities

• Manual TIG welding on stainless gas-distribution tubing and Al/SS chamber weldments (Miller Dynasty 280 DX ×2)

• Helium-leak-tight standards on vacuum-prep welds.

• Trumpf TruLaser 1030 (4 kW fiber) operation: nesting, sheet loading, scrap handling, nozzle changes, beam calibration

• Trumpf TruBend 5085 SX press brake setup and operation with ACB Laser closed-loop angle control

• FINISHLINE 42" two-zone deburr operation

• First-article inspection across welded, bent, and laser-cut parts; pre/post-weld cleaning to semi-grade standards

Required Experience

• 3+ years total experience across at least TWO of: TIG welding manual, sheet metal fabrication (laser + brake).

• Strong TIG welding background — manual on Al and SS, can pass AWS D17.1 or equivalent quality bend tests

• Reads weld symbols, flat patterns, and tube prints fluently

• Comfortable being the kind of operator who runs a different machine each day

Nice-to-have

• Strong proficiency with all three of: TIG + sheet metal + tube

• Trumpf laser + brake specifically (or Bystronic / Mazak / Amada)

• Welding Inspector certification (CWI)

• TruTops Boost or T PROJECT programming

• Robotic / cobot weld cell familiarity (UR + Miller Copilot)

Benefits: Fab2 offers the following benefits, subject to applicable eligibility requirements:

• Medical, Dental, and Vision insurance

• Generous Paid Time Off inclusive of Holidays and Sick Time

• Visa Sponsorship

• Life and Disability Insurance

• Paid Parental Leave

• 401(k) retirement plan

• Weekly Learning & Development opportunities

• Commuter Benefits including Parking and Late Night Uber rides from the office

• Lunches daily, Dinners 3x per week, Stocked Office Kitchen with Snacks and Spindrifts

We are an equal-opportunity employer and do not discriminate on the basis of race, religion, national origin, gender, sexual orientation, age, veteran status, disability or other legally protected statuses.

Export Control Analysis: This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant’s capacity to serve in compliance with U.S. export controls.

Fab2, formerly known as Atomic Semi