Mechanical Design Engineer, Plastics

Our Opening and Your Responsibilities

Mettler Toledo Rainin is looking for an experienced Engineer to develop new applications and products based on polymers or their derivatives and/or automation systems, equipment and packaging technologies appropriate for such products

  • Designing high-tolerance, thin wall, high volume components for injection molding.
  • Evaluates materials for potential new applications in the Life Science market.
  • Works with mold makers and molding department to optimize component production and molding efficiency.
  • Performs FEA and mold flow analysis and uses the data to optimize part design.
  • Provides design information to R&D and Documentation staff for final release documentation and checks work output for accuracy. 
  • Confers with peers, managers and team members across structural lines relative to material selection, handling and processing issues as required.
  • Works with limited supervision from project manager or functional manager on assigned projects.
  • Uses materials knowledge to work cross functionally to provide viable solutions to production issues.
  • Stay on top of industry and materials trends to become the subject matter expert for polymers.

What You Need to Succeed

  • Minimum of BS in a related area of study and 7 years of experience (5 years and MS) in a related industry such as precision lab-grade consumables or products.
  • Strong understanding and knowledge of engineering polymers.
  • Experience in ISO-certified design and manufacturing environment a plus.
  • Advanced skills with MS Word, Excel, and PowerPoint, Visio, MS Project.

Our Offer to You

  • Medical, dental and vision care coverage and a 401(k) savings plan with company matching – all starting on date of hire
  • Tuition reimbursement, educational matching gift program, perks and discounts
  • Parental and caregiver leave programs
  • All the benefits you would expect from a global leader such as paid time off, flexible spending, short-and long-term disability, basic life insurance, business travel insurance, Employee Assistance Program, and domestic partner benefits
  • Global market strength and worldwide leadership in precision instrumentation
  • A brand name that is identified worldwide with precision, quality, and innovation
  • Thousands of patents, design and innovation awards across Mettler Toledo
  • Global recognition for the quality of our products and services

About Mettler Toledo

Working at Mettler Toledo means you are impacting the world in important ways. Our precision measuring devices span the world's laboratories, production facilities, and retail stores. We manufacture, sell, and service instruments that detect, measure, and weigh - from the infinitely small to the largest of vehicles or airplanes.

  • We help feed the world. We impact how food is produced, packaged and made safe.
  • We help keep you healthy. Our instruments make it possible for scientists to develop new drugs and bring life-saving medicines to the world.
  • Mettler Toledo products are important to the production and consistent quality of every kind of consumer product.
Mettler Toledo Rainin manufactures pipettes, one of the most basic tools used in every type of chemistry laboratory and many kinds of biological laboratories. Rainin's pipettes consistently rank among the top premium pipette brands in North America, Europe, Asia and the Middle East.

Equal Opportunity Employment

We are an equal opportunity employer and value diversity at our company. We give consideration for employment without regard to race, color, religion, sex, age, national origin, disability, sexual orientation, gender identity, genetic information, protected veteran status, or any other protected classification. If you’d like more information about your EEO rights as an applicant under the law, please click here.

Mettler Toledo endeavors to make accessible to any and all users. If you would like to contact us regarding the accessibility of our website or need assistance completing the application process, please contact us at

For those who prioritize precision, Mettler Toledo is precisely where you belong.









Mettler-Toledo Rainin, LLC [Delaware]

7500 Edgewater Dr, Oakland, CA 94621 United States

+1 (800) 472-4646