Micro Precision Assembler — Hand & End Effector Tech

Persona AI; Houston (TX); On-site; USD 25,000 - 39,000; Full time

Benefits offered by this job

Competitive compensation

Performance-based bonus

99% employer-covered medical benefits

Early-stage equity

PTO and paid winter break

Job summary

Persona AI is hiring for a Micro Precision Assembler in Houston, TX. This onsite role involves hand- and end-effector assembly for humanoid robotics in controlled environments, with focus on precision and repeatable quality.

You will work under detailed drawings and maintain strict tolerances. The position offers full-time hours, overtime with 1.5x pay, and a collaborative team culture focused on building rugged, high-precision components for heavy fabrication contexts.

Qualifications

• High school diploma or GED required.
• Demonstrated fine-motor precision work.
• Ability to read mechanical drawings and assembly instructions.
• Comfort with precision measuring tools; willingness to learn.
• Willingness to overtime and weekend production.

Responsibilities

• Assemble finger, thumb, and wrist mechanisms from engineering drawings — miniature bearings, pivot pins, linkages, retaining rings, and springs.
• Route and pre-tension drive tendons and cables to specification.
• Assemble miniature gearheads and small actuator units, keeping serialized matched sets together.
• Torque miniature fasteners (roughly M1.6 to M3) with calibrated low-range torque drivers, working in newton-centimeters.
• Apply adhesives, thread locker, and lubricant in controlled quantities; install seals, boots, and covers.
• Verify each hand against acceptance criteria — range of motion, joint backlash, tendon pre-tension, and smoothness — using pin gauges, micrometers, and dial indicators.
• Mate pre-terminated sensor connectors and dress flex cable during palm and wrist closeout, under ESD control.
• Record build data accurately — serial numbers, matched sets, torque values, and tendon tensions — in our shop floor build records.
• Flag parts, drawings, or steps that don't work as written. We would rather fix the instruction than build a hundred hands wrong.

Skills

Fine motor precision

Reading mechanical drawings

Precision measuring tools

Following documented process

Overtime availability

Education

High school diploma or GED

Tools

Calibrated torque drivers

Micrometers

Dial indicators

Pin gauges

ESD procedures

Job description

Persona AI is hiring for a Micro Precision Assembler in Houston, TX. This onsite role involves hand- and end-effector assembly for humanoid robotics in controlled environments, with focus on precision and repeatable quality.

You will work under detailed drawings and maintain strict tolerances. The position offers full-time hours, overtime with 1.5x pay, and a collaborative team culture focused on building rugged, high-precision components for heavy fabrication contexts.