This role has closed. Proto Labs has taken the posting down.
hirly last saw it live on 24 September 2026. See similar open roles below, or browse the live board.
Proto Labs
Build Technician - Weekend Night Shift
Rosemount, MN
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hirly's read of this role
- Seniority
- Mid level
- Country
- US
- Work mode
- On-site / unstated
- First seen by hirly
- 11 Sept 2026
Derived automatically from the posting.
the posting
Position Overview:
Polish, assemble, and prepare injection molds for the molding process.
The hours for this position are: Thursday 12:00am -6:00am, Friday and Saturday 6:00pm-6:00am, Sunday 8:00pm-6:00am
Specific Duties Include:
Prepare injection molds for build process; de-burring mold halves and ejector plates, drilling and tapping holes, grinding sprue pullers, cutting guide pins, cutting ejector pins, drilling tunnel and post gates
Assemble mold for molding process
Polishing mold halves – bringing surfaces to specified finish level
Perform mold specific build functions, such as contouring ejector pins, fly-cutting backs of molds (typically B-side), venting ejector pins, adding parting line vents, making Z pullers and keys, installing repair plugs
Fit and assemble cams
Calibrate pin cutter
Perform mold specific build functions, such as manually adding support pillars, adding stationary B-side pins, adding ejector pins, add A-side vent pins, adding steel core pins
Identify and solve mold issues
Address and resolve reworks
Maintain clean and organized work area with emphasis on safety, quality, efficiency, and utilization.
Continually seek to improve work processes and individual performance.
Adhere to all quality and safety standards within the department.
Adhere to all company policies and operational procedures.
Perform additional tasks as assigned.
Additional Duties and Responsibilities:
Advanced mold preparation skills, for example: calibrating pin cutter, manually adding support pillars, fly-cutting backs of molds (typically B-side)
Identify and solve mold issues
Evaluate, address, resolve reworks and write rework flags as assigned
Inspection
Minimum Qualifications:
Proven mechanical aptitude
Experience with measurement instruments (micrometers, calipers, height gages)
Experience with power tools used in a metalworking shop (drill press experience a plus)
Able to work safely with sharp tools/objects, such as but not limited to, hobby knives, utility knives, pliers
Able to use a computer, calculator and do basic arithmetic
Able to read and write in English
Able to work in a fast-paced, team-oriented work environment
Must be punctual and have good attendance
Good written and oral communication skills. Strong attention to detail
Education Requirements:
High School Diploma or equivalent degree
Physical Demands: Stand for the entire shift. Lift up to 70 pounds waist high, carry up to 70 pounds alone. Essential job duties require reaching, bending, and grasping. Able to read machine-shop gages and indicators.
Work Environment: Indoors (generally air-conditioned but with occasional temperatures up to 85 degrees F or down to 65 degrees F); non-smoking; production; eye protection & safety shoes required.
Proto Labs maintains ITAR-compliant operations in all of our United States based facilities. Due to ITAR regulations, this role is only open to U.S. Citizens, lawful permanent residents (green card holders) or foreign nationals granted refugee or asylee status. Individuals with temporary visas (e.g. E, F-1, H-1, H-2, L, B, J, TN or OPT) are not eligible for hire in this role.
Proto Labs, Inc. is an Affirmative Action / Equal Opportunity Employer