Demo

Set-up Technician

Semco
Saint Louis, MO Full Time
POSTED ON 6/20/2026
AVAILABLE BEFORE 10/16/2026

Company Overview

Semco has become the market leader and manufacturer of rotationally molded poly and welded steel bulk storage and material handling products in North America. Tank is growing rapidly and is always working to expand its capabilities and diversify product offerings consistent with the company values of growth and service to its customers.

Job Summary

We’re looking for that person whose primary responsibility would be to work with fellow team members to change over molds and head tooling at end of a production run and setup molds and head tooling for the next production run. These change overs will be on injection and extrusion blow mold machines. This responsibility will require machine utilities to be set up correctly so the mold and head tooling work correctly to produce good parts at startup. Performance of this responsibility will require use of various types of tools, machinery, equipment, lubricants, and cleaning agents.

What We Offer:

  • Medical, dental, & vision insurance with competitive premiums
  • 401(k) with 3% matching
  • Up to $5,250 of educational assistance per calendar year
  • PTO 9 paid company holidays

This job is for you if…

  • You are detail oriented and love bringing order and improvement to various processes.
  • You are a sound communicator and leader where it counts.
  • You thrive in a fast-paced environment and enjoy problem solving at all twists and turns.

Key Responsibilities

  • When working on all mold setups and change overs, team supervision will be encouraged and expected.
  • Must be aware at all times of surroundings and be on lookout for issues and take appropriate actions.
  • Must have strong mechanical skills and fully understand functions of various machine components.
  • Required to work with setup team with all phases of the mold change over process and into production.
  • Required to understand and operate machine operator controls, heater settings, and service settings and guide any questions comments or concerns that any technicians may have.
  • Must understand and enforce proper lock-out tag-out procedures while working around machinery.
  • Required experience with heater control and wiring systems. Must be able to properly hook up heaters and thermocouples before machine power is turned on. Must be able to teach and verify others work.
  • Ability to troubleshoot electrical devices with a multi-meter, temperature scanner, and other test devices.

Knowledge, Skills and Abilities

  • Strong analytical, decision making, and problem-solving skills required.
  • Strong mechanical and technical aptitude required with hands-on mechanical experience preferred.
  • Education (required): High school diploma; technical associates degree in the field of general mechanics, electrical technology, plastics molding technology or equivalent (preferred).
  • Industry experience (required): 5 Years actual work experience in the field of manufacturing maintenance with emphasis on two of three of mechanical, electrical and plastics mold set-up experience.

Physical Requirements

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

  • Occasional, represents 1 to 33% or 1-2 hours of an 8-hour work day.
  • Frequently, represents 34 to 66% or 2 1/2 to 5 1/2 hours of an 8-hour work day.
  • Regularly, represents 67 to 100% or 6 to 8 hours of an 8-hour work day.
  • While performing the duties of this Job, the employee is regularly required to stand; walk; use hands to finger, handle, or feel; reach with hands and arms and talk or hear. The employee is regularly required to climb or balance and stoop, kneel, crouch, or crawl. The employee must regularly lift and /or move up to 50 pounds. Specific vision abilities required by this job include close vision, color vision and peripheral vision.
  • Work Environment The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

While performing the duties of this Job, the employee is occasionally exposed to extremely hot and cool conditions; moving mechanical parts; high, precarious places; toxic or caustic chemicals and outside.

Travel

The percentage of travel is 5%. It will require the use of a personal vehicle with mileage reimbursement.

AAP/EEO Statement

Tank Holding provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, creed, ancestry, sexual or affectional orientation, marital or veteran status, color, religion, sex, national origin, age, disability, genetics, status with regard to public assistance or any characteristic protected under federal, state or local law.

Other Duties

Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice.

Salary : $21 - $24

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