Careers

CAREERS

Mol-Son LLC is a premier tight tolerance plastic injection mold builder located in Mattawan, Michigan.

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Career Interest

Mol-Son may have a position for you. We’re always on the lookout for talented individuals who share our dedication for providing excellence in their work, including mold design, build, repair, or CNC. If you’re already experienced in any of these positions and share a passion for quality teamwork, attention to detail, and continuously improving in your craft, we encourage you to apply.

POSITIONS

Mold Repair Technician – Starts Here!

1st Shift – Mol-Son, Mattawan, Michigan

 

We’re looking for skilled Mold Repair Technician(s) to join our team. In this role you’ll be responsible for repairing and maintaining production injection molds. Disassemble, cleaning, and reassemble molds.  Replace or fix worn core/inserts, ejector pins, and other needed mold components.

 

What you will receive:

  • Competitive wages based on experience.
  • Flexible schedule.
  • Paid Time Off and Paid holidays.
  • Excellent medical insurance.
  • 401k with company contribution.
  • Dental and vision coverage available.
  • Paid life insurance, short-term and long-term disability.
  • Employee Assistance Program.

 

What you will do:

  • Evaluate Tool Maintenance Request (TMR).
  • Perform required repair and/or maintenance.
  • Ensure spare mold components are fit properly.
  • Inform management of delay to expected delivery dates.
  • Safety & housekeeping.

 

Required Knowledge & Skills

  • Blueprint reading.
  • General mold design, build & function.
  • Mechanical aptitude.
  • Injection molding knowledge.
  • Tool room equipment and machining processes.
  • Use of hand-held measurement tools.
Apply Now

Mold Maker – Starts Here!

1st Shift – Mol-Son, Mattawan, Michigan

 

We’re looking for skilled Journeymen Mold Maker(s) to join our team. In this role you’ll be responsible for the building, modification, and repair of precision plastic injection molds.  Work with design engineers to provide input on mold feasibility and function.  Mentor junior & apprentice mold makers to aid in team development, dimensional accuracy and safe work practices.

 

What you will receive:

  • Competitive wages based on experience.
  • Flexible schedule.
  • Paid Time Off and Paid holidays.
  • Excellent medical insurance.
  • 401k with company contribution.
  • Dental and vision coverage available.
  • Paid life insurance, short-term and long-term disability.
  • Employee Assistance Program.

 

What you will do:

  • Review tool design (model, drawings).
  • Identify areas for improved construction & ease of machining.
  • Inform other departments of projects needs (EDM, CNC, polish, etc.).
  • Communicate with management, support needed to meet delivery date (mold makers, apprentices, etc.).
  • Assure all mold components are received before final assembly.
  • Train apprentices.
  • Verify accuracy & quality of work done by others under your supervision.
  • Safety & housekeeping.

 

Required Knowledge & Skills

  • Blueprint reading.
  • CAD/CAM software & programming.
  • General mold design, build & function.
  • Injection molding knowledge.
  • Mechanical aptitude.
  • Tool building materials (steels, heat treat, plating, etc).
  • Tool room equipment and machining processes.
  • Use of hand-held measurement tools.
Apply Now

Sinker EDM Operator – Starts Here!

1st Shift – Mol-Son, Mattawan, Michigan

We’re looking for a skilled CNC EDM Sinker Specialist to join our Tool Room Team.  In this role, you’ll program, set-up, and operate CNC EDM equipment to manufacture precision tooling and mold components that support high quality, efficient production.

What you will receive:

  • Competitive wages based on experience.
  • Flexible schedule.
  • Paid Time Off and Paid holidays.
  • Excellent medical insurance.
  • 401k with company contribution.
  • Dental and vision coverage available.
  • Paid life insurance, short-term and long-term disability.
  • Employee Assistance Program.

 

What you will do:

  • Program, set-up, and operate CNC sinker EDM machines.
  • Evaluate electrode construction with mold maker for most effective use of equipment.
  • Read and interpret blueprints, CAD models, and engineering drawings.
  • Diagnose machining and programming issues and implement effective solutions.
  • Check & measure work performed.
  • Perform routine machine maintenance and maintain a clean, organized work area.
  • Perform other related duties as assigned.

 

Required Knowledge & Skills

  • Experience in programming and operating CNC EDM equipment (sinker EDM).
  • Knowledge of tooling, machining practices, and precision manufacturing.
  • Ability to read blue prints and work to close tolerances.
  • Experience with CAD/CAM software and precision measuring instruments.
  • Mechanical aptitude with problem solving ability.
  • Tool building materials (steels, graphite, Al, Cu, etc..).
  • High attention to detail and strong commitment to quality work.
  • Communication skills with the ability to work collaboratively.
  • Well-organized and self-motivated with the ability to manage tasks independently.

 

Education and Experience Requirements

  • Highschool diploma or equivalent.
  • Experience operating CNC EDM equipment.

 

Apply Now

Duties/Responsibilities

  • Critique product designs for mold build (DFM review)
  • Assure proper draft, shrink and tolerance sizing are incorporated into mold design
  • Assure design meets customer expectations& standards
  • Perform CAE analysis as required
  • Provide 2-D and 3-D mold designs to build injection mold tooling to shop
  • Specify material & components

 

Knowledge

  • CAD/CAM knowledge
  • CAE knowledge (mold flow analysis)
  • Drafting, drawing, & general design standards
  • Injection molding processes
  • Mechanical aptitude
  • Plastics used in product designs
  • Tool build materials & operations (heat treating, plating)
  • Self Motivated
  • Tool room equipment & machining processes
Apply Now

Duties/Responsibilities

  • Set-up/Operate CNC EDM equipment
  • Program CNC EDM controls
  • Evaluate electrode construction with mold maker for most effective use of equipment
  • Check & measure work performed
  • Monitor equipment maintenance
  • Safety & housekeeping

Knowledge

  • Blue print reading
  • CAD/CAM software & programming
  • Mechanical aptitude
  • Set-up & Operate CNC EDM
  • Tool building materials (steels, graphite, Al, Cu, etc.)
  • Tool room equipment & machining processes
  • Use of hand held measurement tools
Apply Now

CNC Mill Operator – Precision Starts Here!

1st Shift – Mol-Son, Mattawan, Michigan

 

We’re looking for skilled CNC Mill Operator(s) to join our team. In this role you’ll be responsible for setting up, programming, and operating CNC milling equipment to produce precision tooling components. Works closely with Mold Makers and EDM Operators to determine the most effective machining methods while ensuring quality, accuracy, equipment reliability, and safe work practices.

 

What you will receive:

  • Competitive wages based on experience.
  • Flexible schedule.
  • Paid Time Off and Paid holidays.
  • Excellent medical insurance.
  • 401k with company contribution.
  • Dental and vision coverage available.
  • Paid life insurance, short-term and long-term disability.
  • Employee Assistance Program.

 

What you will do:

  • Set-up/operate CNC Mill equipment.
  • Program CNC Mill controls.
  • Program with off-line CAM software.
  • Evaluate milling process with mold maker and/or EDM operators for most effective use of equipment.
  • Check & measure work performed.
  • Monitor equipment maintenance.
  • Safety and housekeeping.
  • Perform other related duties as assigned.

 

Required Knowledge & Skills

  • Blueprint reading.
  • CAD/CAM software and programming.
  • Mechanical aptitude.
  • Set-up and operate CNC Mill.
  • Tool building materials (steels, graphite, Al, Cu, etc.).
  • Tool room equipment and machining processes.
  • Self-motivated.
  • Use of hand-held measurement tools.
  • High attention to detail and strong commitment to quality work.
  • Strong communication skills with the ability to work collaboratively.

 

Education and Experience Requirements

  • Highschool diploma or equivalent.
  • Experience operating CNC Mill equipment.
Apply Now

Wire EDM Operator – Precision Starts Here! 

1st Shift – Mol-Son, Mattawan, Michigan

 

Wire EDM Operator(s) are responsible for setting up, programming, and operating Wire EDM equipment to produce precision tooling components. Works closely with Mold Makers to develop effective fixturing and machining approaches while ensuring dimensional accuracy, equipment performance, and safe work practices.

 

What you will receive:

  • Competitive wages based on experience.
  • Flexible schedule.
  • Paid Time Off and Paid holidays.
  • Excellent medical insurance.
  • 401k with company contribution.
  • Dental and vision coverage available.
  • Paid life insurance, short-term and long-term disability.
  • Employee Assistance Program.

 

What you will do:

  • Set-up/operate Wire EDM equipment.
  • Program Wire EDM machine controls.
  • Program with off-ling CAM software.
  • Design and discuss with mold makers, insert bars and fixturing for machine effectiveness.
  • Check & measure work performed.
  • Monitor equipment maintenance.
  • Safety and housekeeping.
  • Perform other related duties as assigned.

 

Required Knowledge & Skills

  • Blueprint reading.
  • CAD/CAM software and programming.
  • Mechanical aptitude.
  • Set-up and operate Wire EDM.
  • Tool building materials (steels, graphite, Al, Cu, etc.).
  • Tool room equipment and machining processes.
  • Self-motivated.
  • Use of hand-held measurement tools.
  • High attention to detail and strong commitment to quality work.
  • Strong communication skills with the ability to work collaboratively.

 

Education and Experience Requirements

  • Highschool diploma or equivalent.
  • Experience operating Wire EDM equipment.
Apply Now

 

Mold Polisher – Starts Here!

1st Shift – Mol-Son, Mattawan, Michigan

Position Description: Join our Tool Room team as a Mold Polisher, where your precision and craftsmanship help produce high-quality tooling. In this hands-on role, you will inspect, polish, and finish mold cavities, cores, and tooling components to exact specifications, ensuring optimal mold performance and exceptional part quality.  Working closely with Mold Makers, this position ensures tooling meets quality standards by inspecting for defects, understanding critical mold features, and producing precision finishes that support optimal mold performance and part quality. The Mold Polisher also maintains polishing equipment and supplies while promoting a safe, clean, and organized work environment.

What you will receive:

  • Competitive wages based on experience.
  • Flexible schedule.
  • Paid Time Off and Paid holidays.
  • Excellent medical insurance.
  • 401k with company contribution.
  • Dental and vision coverage available.
  • Paid life insurance, short-term and long-term disability.
  • Employee Assistance Program.

 

What you will do:

  • Inspect mold cavities, cores, and tooling components for defects, imperfections, or damage prior to polishing.
  • Review each job with the assigned Mold Maker to understand critical surfaces, finish requirements, and areas requiring special attention.
  • Polish mold cavities, cores, inserts, and other tooling components to specified surface finish requirements using appropriate polishing techniques and equipment.
  • Verify that finished surfaces meet quality expectations and report any concerns or abnormalities to the Mold Maker or Supervisor.
  • Order, organize, and maintain polishing supplies, compounds, abrasives, and equipment to ensure availability and proper condition.
  • Perform routine care and maintenance of polishing equipment.
  • Follow all company safety policies and procedures, including the proper use of personal protective equipment (PPE).
  • Work collaboratively with Mold Makers and other team members to support tooling repairs, maintenance, and production priorities.
  • Maintain a safe, organized, and professional work environment.
  • Perform additional duties as need to support business operations and customer satisfaction.

 

Required Knowledge & Skills:

  • Highschool diploma or equivalent
  • Previous polishing, machining, manufacturing, or tool room experience is preferred.
  • Basic knowledge of polishing abrasives, stones, rotary cutters, mounted points, and related polishing materials; familiarity with benching tools such as hand grinders, files, and similar equipment.
  • Ability to safely operate all required polishing equipment, including ultrasonic polishers/profilers and related equipment.
  • A team-oriented mindset with strong communication skills.
  • High attention to detail and strong commitment to quality work.
  • Strong communication skills with the ability to work collaboratively.



Apply Now

Tooling Engineer – Precision Starts Here!

1st Shift – Mattawan, Michigan

 

Tooling Engineer(s) are responsible for the engineering and design of injection mold tooling to support new and existing product programs. Reviews product designs for manufacturability, develops 2-D and 3- D mold designs, performs required engineering analysis, and ensures tooling designs meet customer specifications, quality requirements, and internal manufacturing standards.

 

What you will receive:

  • Competitive wages based on experience.
  • Flexible schedule.
  • Paid Time Off and Paid holidays.
  • Excellent medical insurance.
  • 401k with company contribution.
  • Dental and vision coverage available.
  • Paid life insurance, short-term and long-term disability.
  • Employee Assistance Program.

 

What you will do:

  • Critique product designs for mold build (DFM review).
  • Assure proper draft, shrink and tolerance sizing are incorporated into mold design.
  • Assure design meets customer expectations and standards.
  • Perform CAE analysis as required.
  • Provide 2-D and 3-D mold designs to build injection mold tooling to shop.
  • Specify material components.

 

Required Knowledge & Skills

  • CAD/CAM Knowledge
  • CAE knowledge (mold flow analysis).
  • Drafting, drawing, and general design standards.
  • Injection molding processes.
  • Mechanical aptitude.
  • Plastics used in product designs.
  • Tool build materials and operations (heat treating, plating).
  • Self-motivated.
  • Tool room equipment and machining processes.
  • High attention to detail and strong commitment to quality work.
  • Strong communication skills with the ability to work collaboratively.

 

Education and Experience Requirements

  • Bachelor’s degree in Mechanical Engineering, Manufacturing Engineering, Plastics Engineering, Tooling Engineering, or a related technical field.
  • 3+ years’ experience in Tool Design.

Apprentice – Precision Starts Here! 

1st Shift – Mol-Son, Mattawan, Michigan

 

The Tool Room Apprentice is an entry-level position designed to develop the skills and knowledge necessary to support mold making and tool room operations. The apprentice will participate in required classroom and hands-on training while assisting experienced Mold Makers with maintenance, machining, mold movement, and other assigned tool room activities. 

 

What you will receive:

  • Competitive wages based on experience.
  • Flexible schedule.
  • Paid Time Off and Paid holidays.
  • Excellent medical insurance.
  • 401k with company contribution.
  • Dental and vision coverage available.
  • Paid life insurance, short-term and long-term disability.
  • Employee Assistance Program.

 

What you will do:

  • Attend required classes (Classes are provided onsite).
  • Operate company vehicles / trucks.
  • Learn to operate tool room equipment.
  • Pick-up and deliver molds per schedule.
  • Provide support to Mold Makers.
  • Perform other related duties as assigned.

 

Required Knowledge & Skills

  • Ability to read and follow a blueprint.
  • Computer skills.
  • Mechanical aptitude.
  • Tool room equipment and machining processes.
  • Use of basic tools.
  • Use of hand-held measurement tools.
  • Ability to follow directions.
  • Effective communication skills and ability to work closely with Mold Makers and other team members.
  • Demonstrates initiative, innovation, problem-solving, and a continuous improvement      mindset.
  • Ability to work effectively in a group and support a team environment.
  • Supports Company policies, procedures, goals, and values.

 

Education and Experience Requirements

  • Highschool diploma or equivalent or currently enrolled in a 2 to 4-year approved apprenticeship program.
  • No experience required for entry level position, vocational training a plus (shop, drafting classes, etc.).



Apply Now

How to Apply

  1. Download the Employment Application Form
  2. Complete the application (digital or by hand and scan it).
  3. Return here and upload your completed application along with the required documents.