Mechanical Engineer, Precision Systems

Fab2; Austin (TX); On-site; USD 105,000 - 200,000; Full time

Benefits offered by this job

Medical Insurance

Dental Insurance

Vision Insurance

Paid Time Off

Visa Sponsorship

Life Insurance

Disability Insurance

Parental Leave

401(k) retirement plan

Learning & Development

Commuter Benefits

Office Lunches

Job summary

fab2 is looking for a skilled Mechanical Engineer to design, prototype, and build mechanical systems for semiconductor fabrication equipment. You will create stages, frames, and assemblies with a focus on precision and manufacturability, driving projects from concept to bench validation in days or weeks.

Applicants should demonstrate hands-on fabrication and alignment experience, GD&T expertise, and a track record of delivering high-precision systems.

Qualifications

• 3 years designing and building precision mechanical systems that hit real accuracy targets.
• Working fluency in precision machine design fundamentals: exact-constraint design, kinematic couplings, flexures, error budgeting, structural loops, tolerance analysis.
• Hands-on prototyping, fabrication, assembly, and alignment experience with mills, granite surfaces, and interferometers.

Responsibilities

• Design and iterate on precision machines, motion stages, structural loops, metrology frames, opto‑mechanical mounts, test fixtures, and inspection tooling targeting sub‑micron to nanometer performance.
• Lead mechanical system integration, alignment procedures, and cross‑team coordination with electrical, controls, and optics engineers.
• Drive mechanical design of frames, stages, and assemblies with GD&T, tolerance analysis, and manufacturability considerations.
• Rapidly prototype, build and characterize new designs on the bench using a variety of tools and characterization equipment.
• Select and integrate precision components: bearings, encoders, interferometers, actuators, isolators, and dampers.
• Develop error budgets and tolerance stack-ups; identify and mitigate dominant error sources (thermal, vibrational, structural, kinematic).

Skills

Precision machine design

Kinematic couplings

Error budgeting

Tolerance analysis

Hands-on prototyping

Education

Formal training in precision engineering

Tools

Bearings

Encoders

Interferometers

Actuators

Isolators

Dampers

CMMs

Job description

About Fab2

The fab2 team can build anything. We design all the hardware and software needed to make chips and we make the fabs, tools, and components ourselves.

About The Team

The Precision Team operates on the nanometer scale. We make lithography, metrology and motion systems that pattern, inspect and characterize our chips in order to push our process to lower nodes.

About The Role

We are seeking a highly skilled and hands‑on Mechanical Engineer to join our team. You will be responsible for designing, prototyping, and building the mechanical systems in our semiconductor fabrication equipment, from stages and frames up to complete systems.

This role is for someone who has internalized precision machine design as a discipline and has a proven track record of rapidly prototyping complex precision systems and advancing them to the next stage of production. Our philosophy is to get things built and tested in days or weeks, not months.

Because of this, a portfolio is generally required to apply: show us the things you've actually built!

Responsibilities

• Design and iterate on precision machines, motion stages, structural loops, metrology frames, opto‑mechanical mounts, test fixtures, and inspection tooling targeting sub‑micron to nanometer performance
• Lead mechanical system integration, alignment procedures, and cross‑team coordination with electrical, controls, and optics engineers
• Drive mechanical design of frames, stages, and assemblies with GD&T, tolerance analysis, and a practical eye toward manufacturability and assembly
• Rapidly prototype, build and characterize new designs on the bench using a variety of tools and characterization equipment
• Select and integrate precision components: bearings, encoders, interferometers, actuators, isolators, and dampers
• Develop error budgets and tolerance stack‑ups; identify and mitigate dominant error sources (thermal, vibrational, structural, kinematic)

Required Experience

• 3 years designing and building precision mechanical systems that had to hit real accuracy and repeatability targets
• Working fluency in precision machine design fundamentals: exact‑constraint design, kinematic couplings, flexures, error budgeting, structural loops, tolerance analysis
• Hands‑on prototyping, fabrication, assembly, and alignment experience - you're comfortable on a mill, on a granite surface plate, and behind an interferometer
• Experience selecting and integrating precision components (bearings, stages, encoders, isolators, actuators)
• Experience with dimensional metrology: interferometry, LVDTs, capacitance probes, autocollimators, and CMMs

Nice‑to‑have

• Formal training in precision engineering
• Experience at an early‑stage startup
• Familiarity with firmware, controls, or electrical engineering
• Opto‑mechanical design and alignment experience

Working at fab2

We're an early‑stage hardware startup with solid funding, world‑class advisors, and offices in Austin, TX and San Francisco, CA.

Compensation

fab2 is committed to fair and equitable compensation practices. We're hiring this role from mid‑level through staff. The annual salary range for this role is $105,000 - $200,000. Compensation is determined based on your qualifications and experience. Our total compensation package also includes generous equity in fab2.

Benefits

• 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

Compensation Range: $105K - $195K