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Plastic Injection Molding Jobs in Boston, MA (NOW HIRING)

Nanobiosym

Mechanical Design Engineer

Cambridge, MA · On-site

$60K - $130K/yr

Knowledge of manufacturing processes such as plastic injection molding, ultrasonic welding, etc.Familiar with ISO13485 and 14971. Must have experience with process capability and SPC. Must be willing ...

Nova Biomedical

Senior Plastics Process Engineer

Billerica, MA · On-site

$130K - $145K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

The Sr. Plastics Processing Engineer for the injection molding department has responsibility for developing injection molding process parameters for new and existing molds. As the Sr. Plastics ...

Nanobiosym

Engineer: Manufacturing

Cambridge, MA · On-site

$110K/yr

... such as plastic injection molding, ultrasonic welding, etc. Must be willing to be hands on and wear multiple "hats". -be ready to participate in quality systems, engineering, mfg, regulatory ...

Nova Biomedical

Senior Plastics Process Engineer

Billerica, MA

$130K - $145K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

The Sr. Plastics Processing Engineer for the injection molding department has responsibility for developing injection molding process parameters for new and existing molds. As the Sr. Plastics ...

Nova Biomedical

Senior Plastics Process Engineer

Billerica, MA · On-site

$130K - $145K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

The Sr. Plastics Processing Engineer for the injection molding department has responsibility for developing injection molding process parameters for new and existing molds. As the Sr. Plastics ...

G & F Precision Molding Inc

Applications Engineer

Danvers, MA · On-site

$90K - $120K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Evaluate customer silicone rubber and plastic applications for manufacturing approaches. * Strategy Identification: Lead tooling, automation, injection molding, and risk reduction strategies to ...

G & F Precision Molding Inc

Senior Applications Engineer

Danvers, MA · On-site

$110K - $140K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Independently evaluate customer silicone rubber and plastic applications for manufacturability. * Strategy Identification: Identify and lead tooling, automation, injection molding, and risk reduction ...

Viant

Commercial Development Manager

Foxboro, MA · On-site

Injection molding / Injection mold tooling /Medical device assembly * Experience quoting plastic components in IQMS preferred. * Experience managing Bills of Materials (BOMs) in IQMS preferred.

Nanobiosym

Plastics Engineer

Cambridge, MA · On-site

Partner with colleagues and leadership to enhance and refine injection molded and assembled ... Master's or Bachelor's degree in Engineering (Plastics or Mechanical disciplines preferred) * Six ...

Nanobiosym

Plastics Engineer

Cambridge, MA · On-site

$60K - $120K/yr

Partner with colleagues and leadership to enhance and refine injection molded and assembled ... Master's or Bachelor's degree in Engineering (Plastics or Mechanical disciplines preferred) * Six ...

Nanobiosym

Plastics Engineer

Cambridge, MA · On-site

$60K - $120K/yr

RESPONSIBILITIESPartner with colleagues and leadership to enhance and refine injection molded and ... REQUIRED QUALIFICATIONSMaster 's or Bachelor's degree in Engineering (Plastics or Mechanical ...

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All JobsPlastic Injection Molding JobsPlastic Injection Molding Jobs in Boston, MA

Plastic Injection Molding information

See Boston, MA salary details

$13

$19

$27

How much do plastic injection molding jobs pay per hour?

As of Aug 15, 2026, the average hourly pay for plastic injection molding in Boston, MA is $19.95, according to ZipRecruiter salary data. Most workers in this role earn between $16.73 and $22.45 per hour, depending on experience, location, and employer.

What is plastic injection molding?

Plastic injection molding is a manufacturing process used to produce parts by injecting molten plastic material into a mold. The process involves melting plastic pellets, injecting the liquid into a custom-designed mold cavity, and then cooling the material until it solidifies into the final shape. This method is widely used due to its ability to produce high volumes of identical parts with complex shapes and fine details. It's commonly used in industries such as automotive, consumer goods, electronics, and medical devices.

What are some common challenges faced by plastic injection molding technicians, and how can they be addressed?

Plastic Injection Molding Technicians often encounter challenges such as machine downtime, material inconsistencies, and maintaining product quality. Addressing these requires strong troubleshooting skills, attention to detail, and good communication with maintenance and quality control teams. Proactively inspecting equipment, adhering to preventive maintenance schedules, and collaborating closely with engineers help minimize defects and ensure efficient production. Continuous learning and staying updated with new molding technologies also support long-term success in this role.

What are the key skills and qualifications needed to thrive as a plastic injection molding technician?

To thrive as a Plastic Injection Molding Technician, you need a solid understanding of manufacturing processes, mechanical aptitude, and familiarity with material properties, usually supported by a high school diploma or technical certification. Proficiency in using injection molding machines, process control software, and quality inspection tools is essential. Attention to detail, problem-solving skills, and effective communication help you stand out in this role. These skills ensure the efficient production of high-quality parts, minimize downtime, and maintain safety and productivity on the manufacturing floor.

What is the difference between Plastic Injection Molding vs Plastic Mold Designer?

AspectPlastic Injection MoldingPlastic Mold Designer
Primary RoleManufactures plastic parts by injecting molten plastic into moldsDesigns and develops molds used in plastic injection molding processes
Required SkillsMachine operation, material knowledge, quality controlCAD design, mold design, engineering principles
Work EnvironmentFactories, manufacturing plantsDesign studios, engineering offices
CertificationsMachine operation, safety certificationsCAD software certifications, engineering credentials

While Plastic Injection Molding involves the actual manufacturing of plastic parts, Plastic Mold Designers focus on creating the molds used in this process. Both roles are essential in the plastic manufacturing industry, with overlapping skills in engineering and design, but they differ in daily tasks and work environments.

What are popular job titles related to Plastic Injection Molding jobs in Boston, MA?

For Plastic Injection Molding jobs in Boston, MA, the most frequently searched job titles are:

What job categories do people searching Plastic Injection Molding jobs in Boston, MA look for?

The top searched job categories for Plastic Injection Molding jobs in Boston, MA are:

What cities near Boston, MA are hiring for Plastic Injection Molding jobs?

Cities near Boston, MA with the most Plastic Injection Molding job openings:

Plastic Injection Molding jobs near you
Infographic showing various Plastic Injection Molding job openings in Boston, MA as of August 2026, with employment types broken down into 1% As Needed, 83% Full Time, 11% Part Time, 3% Contract, and 2% Nights. Highlights an 96% Physical, 2% Hybrid, and 2% Remote job distribution, with an average salary of $41,488 per year, or $19.9 per hour.

Injection/LSR Molding Process Technician B

G & F Precision Molding Inc

Danvers, MA • On-site

$35 - $42.23/hr

Other

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 28 days ago

Job description

G&F Precision Molding Inc., Danvers, MA, is growing! We are agile, innovative, customer-centric, and our goal is to provide specialized, creative solutions and a commitment to ongoing service and quality. G&F Precision is unique; our core business is life science including medical devices and pharmaceuticals. We provide custom solutions to universal manufacturing needs. We have the experience, ability, and drive to tackle challenging projects from concept to execution.

Our work environment includes:

  • Growth opportunities • Safe work environment

We're seeking a dedicated Injection Molding LSR/Process Technician B to join our team. This role ensures consistent, compliant, and efficient production of critical medical components. Experience in LSR molding and familiarity with tightly regulated manufacturing standards (ISO 13485, FDA) are preferred. Set up and operate LSR injection molding machines, including molding installation, auxiliary equipment configuration, and process parameter adjustments to ensure stability and quality. Perform mold changes, machine setups, and support over molding and short-run production common in medical–device molding. Monitor, adjust, and optimize parameter to meet stringent medical – quality tolerances.

Skills Required:

Experience with ISO 9001 and/or 13485 preferred

  • Experience with different types of materials like PEEK, Liquid Silicone Rubber (LSR), Polycarbonate, ABS, PP etc.
  • Decision making
  • Effective communication
  • Ability to work in a fast-paced environment

Job Type: Full-time

  • Salary: $35-$42.23 per hr
Benefits:

• 401(k)

• 401(k) matching

• Dental insurance

• Dependent care account

• Employee assistance program

• Flexible spending account

• Health insurance

• Holidays (9)

• Health reimbursement account

• Life insurance

• Paid time off

• Parental leave

• Professional development assistance

• Tuition reimbursement

• Vision insurance

Schedule:1stshift, 6am-3pm
  • Monday to Friday, occasional weekends, as required
Experience:
  • Molding Process Technician: 3-5 years of experience (Required)

Language:

  • English (Required)
  • Written (English Required)

Work Location and Mode:

  • At G&F Precision Molding, we value teamwork and collaboration. This role requires employees to be onsite, at one location, five days per week.

Ability to commute/relocate:

  • Danvers, MA 01923: Reliably commute or planning to relocate before starting work (Required)

Relocation Assistance:

  • Relocation assistance is not available for this position at this time.

Visa Sponsorship:

G&F Precision Molding will not offer sponsorship or take over sponsorship of an employment visa for this position