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Title:  Principal Molding Engineer

Requisition ID:  44938
Date:  Jul 26, 2022

Scottsdale, Arizona, US

Department:  Engineering



Working at West means having an opportunity to work by the side of our patients and customers, our global team members and the communities in which we operate – which all help contribute to a Healthier World.


At West, we are by the side of patients. The work we do impacts patients’ lives each and every day – our products are a critical part of healthcare delivery and we are proud of the role we play to improve patient health. We work by the side of our team members. We come together as one global team to deliver for our customers and help them address their challenges. We are a diverse, close-knit community of professionals, where everyone has a voice and opportunity to learn and grow through mutual trust and respect. With a 95 year plus history, we have a track record for success, which includes reported sales of $2.14B in 2020. We serve by the side of our community. Giving back is in our DNA—our team members across more than 50 sites globally are involved with hundreds of charities that have special meaning to them through our West Without Borders team member-led giving program.


Job Summary:

Support the Injection Molding Engineering/Operations group by evaluating and implementing new equipment through validations and involvement in process improvement projects. Solve demanding and ‘impossible’ problems with a combination of engineering expertise, practical know-how and a willingness to reach outside of existing knowledge areas to identify novel solutions.  Carry out special analytical investigations to generate critical technical information, making decisions concerning product improvement and overall quality.  Implement, interpret, correlate, and communicate statistical studies performed on manufacturing processes. Through understanding of tooling / process interactions and development of process, provide all pertinent validations of both tooling and process.  Interacts with Engineering / Customers on new projects or issues pertaining to the facility’s processes.  Write detailed technical reports on analytical data; provides periodic updates pertaining to assigned projects.



  • Take a lead role in West’s early conceptual Injection Molding development process
  • Use strong analytical skills to understand and implement customer/user needs, market requirements and other design inputs.
  • Develop scope of work, plan and manage for Injection Molding/Equipment Validation projects for the introduction of all new products into the company and compiling standard specifications for each process and monitoring all existing production to standard specifications.
  • Lead the installation and validation of new equipment/process development through SAT/IQ/OQ/PQ.
  • Translate product requirements into device specifications
  • Drive idea creation, development, bread boarding/prototyping, feasibility testing, etc. to evaluate viability of ideas.
  • Lead and advise component material selection with a strong emphasis on polymer selection for injection molded parts.
  • Hands-on engineering, such as reverse engineering, simple assembly and machining work, component testing and failure analysis
  • Provide continuity for the validation program for assigned plant or functional area by writing validation documentation Provide project leadership for materials / process / Tooling related projects by coordinating the efforts of the various departmental disciplines for the successful completion according to plan and budget
  • Create engineering change requests for modifications to equipment and the introduction of new equipment/molds
  • Managing internal and external resources to meet the technical requirements of the project, such as outside vendors, and management of techs and/or interns
  • Prepare detailed technical reports and design documentation in compliance with the Innovation Group’s internal development process
  • Work with Industrial Design team to plan innovative technical approaches to design solutions
  • Coordinate engineering meetings with manufacturing plants. Identify, monitor status of results or projects.
  • Leveraging internal and external resources to solving complex problems
  • Managing of projects using good engineering principles and techniques
  • Support the management of external engineering and design resources with appropriate interaction with their technical teams
  • Help execute specific strategies, tactics and action plans for the location, as part of the overall Delivery Systems/Innovation product development plan, inclusive of management/ tracking of project activities and resources

Required Qualifications: 

  • Education: Bachelor's in Engineering/Plastics
  • Experience: 8-10 years of experience
  • Regulatory compliance in cGMP manufacturing and testing of Pharmaceutical or Medical Device Products.


Preferred Qualifications:

  • Excellent written and verbal communication skills
  • Experience working with teams and influencing decisions
  • Must have an in-depth knowledge of Statistical Process Control (SPC) and Design of experiments (DOE) and demonstrate use of same.
  • Should have a good knowledge of the principles of WCM, JIT, SMED, and Kaizen
  • Excellent understand of the Scientific approach to Injection Molding
  • Preferred understanding of EDARTS, RJG Master Molder certificate
  • Must have knowledge in computer systems; integrated manufacturing systems; word processing and spreadsheets
  • Must be able to organize and prioritize tasks; must be detail orientated and self-motivated.
  • Must be able to deal with all levels of employees and work across various departments.
  • Experience in writing and executing validation protocols and reports,
    • Ability to function as a team member

Travel Requirements:

  • Minimal to 0%


Physical & Mental Requirements:

  • Medical Device manufacturing requires strict adherence to standards. Working environment is a manufacturing facility, which houses plastic injection molding machines. Must tolerate fumes and particulate generated from various plastics. Work areas are equipped with adequate lighting, cooling/heating and equipment that are in a good working condition. Must work constructively in an environment that may be stressful due to competing resources while at all times maintaining company confidentiality.
  • Must be able to work scheduled work week, plus overtime and/or irregular hours as required to complete assignments. May stand or sit for extended periods of time. Must transport oneself to and from other areas of the facility and travel to other divisions when necessary. Must have good visual acuity. If specifically necessitated by customer requirements, must be able to see with or without corrective lenses and distinguish color differences for product and safety issues







West is an equal opportunity employer and we value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sex, gender identity, sexual orientation, age, marital status, veteran status, or disability status.  If you have a special need that requires accommodation in order to apply to West, please send an email to  Where permitted by law, an offer of employment with West Pharmaceutical Services, or any of its subsidiary or affiliate companies, is contingent upon the satisfactory completion of background screening and/or a pre-employment drug screening.

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