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Rotational Molding Engineer Jobs (NOW HIRING)

MAKS Plastics

Plastics Engineer

Elkhart, IN · On-site

$60K - $90K/yr

Director of Engineering MAKS Plastics, LLC is a rotational molding and thermoforming plastic component supplier for the RV, Marine and Custom industries. Our products are diversified to offer our ...

MAKS Plastics

Plastics Engineer

Elkhart, IN · On-site

$60K - $90K/yr

Director of Engineering MAKS Plastics, LLC is a rotational molding and thermoforming plastic component supplier for the RV, Marine and Custom industries. Our products are diversified to offer our ...

Cambro

$100 - $125/hr

... rotational molding and/or engineering/qualification mold testing. Supervises the activities of Mold Shop employees to achieve continuous improvement in quality, cost, safety and productivity in ...

pelican

Machine Operator I - 1st Shift

South Deerfield, MA · On-site

$18 - $21.50/hr

Pelican Products, Inc. 1st Shift Who We Are At Pelican, we engineer products that stand up to the ... The Rotational Molding Operator is responsible for setting up and operating rotational molding ...

pelican

Machine Operator I - 1st Shift

South Deerfield, MA · On-site

$18 - $21.50/hr

Pelican Products, Inc. 1st Shift Who We Are At Pelican, we engineer products that stand up to the ... The Rotational Molding Operator is responsible for setting up and operating rotational molding ...

pelican

Machine Operator I - 1st Shift

South Deerfield, MA

$18 - $21.50/hr

Pelican Products, Inc. 1st Shift Who We Are At Pelican, we engineer products that stand up to the ... The Rotational Molding Operator is responsible for setting up and operating rotational molding ...

pelican

Machine Operator I - 1st Shift

South Deerfield, MA

$18 - $21.50/hr

Pelican Products, Inc. 1st Shift Who We Are At Pelican, we engineer products that stand up to the ... The Rotational Molding Operator is responsible for setting up and operating rotational molding ...

pelican

Machine Operator I - 1st Shift

South Deerfield, MA · On-site

$18 - $21.50/hr

Pelican Products, Inc. 1st Shift Who We Are At Pelican, we engineer products that stand up to the ... The Rotational Molding Operator is responsible for setting up and operating rotational molding ...

pelican

Machine Operator I - 1st Shift

South Deerfield, MA · On-site

$18 - $21.50/hr

Pelican Products, Inc. 1st Shift Who We Are At Pelican, we engineer products that stand up to the ... The Rotational Molding Operator is responsible for setting up and operating rotational molding ...

pelican

Machine Operator I - 1st Shift

South Deerfield, MA · On-site

$18 - $21.50/hr

Pelican Products, Inc. 1st Shift Who We Are At Pelican, we engineer products that stand up to the ... The Rotational Molding Operator is responsible for setting up and operating rotational molding ...

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Rotational Molding Engineer information

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$42K

$82.7K

$125.5K

How much do rotational molding engineer jobs pay per year?

As of Sep 9, 2026, the average yearly pay for rotational molding engineer in the United States is $82,666.00, according to ZipRecruiter salary data. Most workers in this role earn between $70,500.00 and $87,500.00 per year, depending on experience, location, and employer.

What cities are hiring for Rotational Molding Engineer jobs?

Cities with the most Rotational Molding Engineer job openings:

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Infographic showing various Rotational Molding Engineer job openings in the United States as of August 2026, with employment types broken down into 92% Full Time, 2% Part Time, and 6% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $82,666 per year, or $39.7 per hour.

R&D Technician / Manager - Rotational Molding Materials

Columbia, MD • On-site

Specialty Powders LLC
See more jobs at Specialty Powders LLCexternal

Full-time

This job post has expired today. Applications are no longer accepted.

Job description

Description:

Position Summary

Hands-on R&D professional responsible for rotational molding material and product development, supporting new product innovation, customer problem-solving, and commercialization. This role bridges lab development, plant scale-up, and customer application needs.


Key Responsibilities


Product Development & Formulation

  • Develop and optimize roto molding formulations (PE, XLPE, advanced polymers and Special Effects PE)
  • Design materials to meet customer performance requirements
  • Modify formulations using additives, crosslinking systems, and blends
  • Lead new product development from concept to commercialization

Testing & Process Development

  • Operate R&D rotational molding equipment
  • Perform and interpret testing: impact, MFI, density, ESCR, thermal/mechanical
  • Develop test methods, specifications, and validation plans
  • Design and execute DOE to establish processing windows and scale-up correlations

Technical Support

  • Troubleshoot customer processing and performance issues
  • Recommend materials, additives, and process conditions
  • Address issues such as warpage, sintering, brittleness, and durability

Collaboration

  • Work with manufacturing, sales, customers, and leadership
  • Support plant trials, scale-up, and customer development efforts
  • Communicate technical results to diverse stakeholders

Materials Expertise

  • Strong knowledge of Polyethylene (PE) and cross-linkable PE (XLPE)
  • Familiarity with higher-value materials (PA, PC, PP, specialty polymers) preferred


Requirements:

Qualifications

  • BS in Polymer Science, Chemical Engineering, Materials Science, or related field
  • 5+ years (Technician) / 8–10+ years (Manager) experience in roto molding or plastics
  • Expertise in formulation, processing, and material testing
  • Hands-on experience with R&D and pilot-scale equipment

Preferred

  • Crosslinking systems (e.g., peroxide)
  • DOE and statistical analysis
  • Fuel tanks / regulated applications or similar
  • Scale-up from lab to production environments

Key Skills

  • Problem-solving and analytical capability
  • Strong customer-facing and communication skills
  • Ability to manage multiple projects
  • Commercial and application-focused mindset

Additional Capabilities

  • Powder processing, stabilization, pigmentation, and aesthetics
  • Compounding: extrusion (single/twin screw), blending, feeders
  • Masterbatches, color systems, specialty visual effects
  • Quality systems and qualification processes
  • Lean / Six Sigma mindset (plus)

Travel

  • 10–30% (customers, plants, trials)

Leveling

  • Role may be filled at Technician or Manager level based on experience and leadership scope.