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Title:  Sr. Mechanical Engineer, R&D

Requisition ID:  62917
Date:  Sep 13, 2023

Scottsdale, Arizona, US

Department:  R&D


ONSITE POSITION with hybrid opportunities in Scottsdale, AZ. Candidates applying must be within a 50 mile radius of the location.


Who We Are:

At West, we’re a dedicated team that is connected by a purpose to improve patient lives that has been at the center of our Company for more than a century. Our story began when Herman O. West solved the problem of supplying penicillin in mass quantities to the US Government during World War 2. Through our work to deliver thousands of life-saving and life-enhancing injectable medicines to millions of patients daily, West’s indelible mark on the healthcare industry has just begun. A name started our story. How will yours help write our future?  


There’s no better place to join an inclusive community of professionals with opportunities for lifelong learning, growth and development. Supported by benefit programs, we empower the physical, mental, emotional and financial health of our team members and their families.  

We believe in giving back to help those in need in the communities where we live and work. And are equally committed to creating a healthier environment and planet through our sustainability efforts.  

Job Summary

In this role, you will collaborate and lead activities of the cross functional teams comprising technical experts within the R&D function, across West's products portfolio, focusing on drug delivery. You will require to demonstrate creative skills in a dynamic environment along with an engineering expertise attitude. You are expected to participate in the development of multi-disciplinary product involving mechanical, plastic, metal and electronics design.


Essential Duties and Responsibilities

  • Making conceptual design, detailed design, CAD modeling and prototyping
  • Utilize design analyses tools by applying principles of mechanics, and materials engineering including theoretical calculations for components fit, tolerance analysis and stress calculations.
  • Writing of technical protocols, product specs, tests methods and presentations related to design activities.
  • Performing and/or supervising evaluation, feasibility, and engineering testing of new and existing products, writing and/or approve tests reports.
  • Provide the team and the project a source of knowledge and utilize experience to support team members & drive decisions.
  • Conducting and supporting failure investigations by utilizing standard methods such as fish-bone diagram
  • Work closely with internal interfaces (Engineering, Quality Assurance, Human Factors and Regulatory Affairs groups) as well as external interfaces such as other groups across the organization
  • Interface with West customers (e.g., pharmaceutical and biotech companies) as needed in development agreement, for activities led by mechanical engineering team.
  • Support industrialization and manufacturing activities, develop and design products assembly, special tooling, and fixtures.
  • Manage and work with subcontractors that support product development and production.


Basic Qualifications 

  • Bachelors Degree in Mechanical Engineering 
  • Minimum 5 years of related experience in product design


Preferred Qualifications

  • Minimum 5 years of related experience with mechanism design, design for manufacturability (DFM), and medical devices design
  • Proficiency in 3-D CAD software such as SolidWorks
  • Knowledge and experience in stack-up analysis
  • Knowledge in plastic part design, sheet metal components, mechanical assembly, injection molding and other manufacturing processes
  • Knowledge in assembly processes
  • Knowledge in Printed Card Board (PCB) manufacturing
  • Must be proficient (verbal and written skills) in English


Travel Requirements

 Less than 5% travel 


Physical Requirements

Sedentary:- exerting up to 10lbs/4kgs of force occasionally, and/or negligible amount of force frequently or constantly to life, carry, push, pull, or otherwise move objects, including the human body. 

Sedentary work involves sitting most of the time.  Jobs are sedentary if walking and standing are required only occasionally, and all other sedentary criteria are met.




West embraces diversity and equality of opportunity. We foster an environment where all individuals are safe, treated fairly, valued and respected. We do not discriminate on the basis of race, religion, color, national origin, gender, sex, gender identity, sexual orientation, age, marital status, veteran status, disability status or other applicable legally protected characteristics. Where permitted by law, employment with West Pharmaceutical Services, Inc. or any of its subsidiary or affiliate companies, is contingent upon the satisfactory completion of post-offer background screening and/or drug screening.  

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