Engineer II, Mechanical Engineering

About this role

Job Title:

Engineer II, Mechanical Engineering

Job Description:

The Role

Entegris is currently seeking a   Mech anical Engineer II   to join our   Engineering   team   at our San Luis Obispo, California location.   

The   Mechanical Engineer II   is responsible for   the design, development, and continuous improvement of pressure vessels used in high-purity semiconductor purification systems. This role partners closely with R&D, Manufacturing, and Quality teams to develop new products, perform stress analysis, create detailed engineering documentation, support production troubleshooting, and ensure designs meet safety, performance, and industry compliance requirements. The position combines hands-on manufacturing engagement with mechanical design   expertise   to deliver reliable, high-quality products.  

What   You’ll   Do  

• Lead the mechanical design of Point of Use (POU) pressure vessels used for   containing   high-purity purification media.    

• Partner closely with the Research & Development team to   determine   optimal   media types, form factors, and geometric requirements for new purifier products.  

• Evaluate and select   appropriate filtration   media to meet pressure   drop , flow   rate , and contamination control requirements.  

• Design robust joints for pressure vessels, with a heavy emphasis on both welding specifications and bolted joint assemblies.  

• Spend dedicated time on the manufacturing floor learning orbital and lathe welding.  

• Conduct, analyze, and document pressure vessel stress calculations to ensure safety, reliability, and compliance with internal and external standards (e.g., ASME BPVC).  

• Utilize SolidWorks to create 3D models, detailed 2D manufacturing drawings, and complete Bills of Materials (BOMs).  

• Act as an engineering liaison to the manufacturing floor,   assisting   in the troubleshooting of production issues to ensure on-time delivery.  

• Participate in design reviews, process improvements, and change control processes to improve manufacturability and product performance.  

• Create a healthy and safe work environment for all employees .  

• Any other duties as assigned.   

What   We   Seek  

• Bachelor’s degree in Mechanical Engineering , Materials Engineering, or a closely related discipline.  

• 2 to 4 years of professional engineering experience with a direct focus on pressure equipment or pressure vessel design.  

• Demonstrated experience in 3D modeling and 2D drafting using SolidWorks or other CAD programs. (Experience with PDM/PLM systems is a   plus).  

• Deep understanding of mechanical assembly techniques, specifically structural welding design, weld callouts, and bolted joint engineering.  

• Proven ability to perform manual and software-assisted stress calculations for pressurized equipment. Familiarity with ASME Section VIII or similar pressure vessel codes is highly preferred.  

• Previous   experience with filtration media, fluid dynamics, or high-purity gas/liquid systems is a strong advantage.  

• Hands-on mindset with   a track record   of successfully troubleshooting mechanical manufacturing and production issues.  

• Excellent verbal and written communication skills with the ability to work cross-functionally with R&D, Quality, and Manufacturing teams.  

Why Work at Entegris  

• Lead. Inspire. Innovate. Define Your Future.  

• Not everyone who works for a global company shares the same background,  

• e xperiences and perspectives. We   leverage   the differences of our employees to   

• b ring   new ideas   to the table. Every employee throughout the company is  

• encouraged to share input on projects and initiatives. Our decision-making  

• process is truly a collaborative effort as we realize there are leaders at every  

• level of the organization. We put our values at the core of how we   operate   as an  

• organization — not just when   it’s   convenient, but in a lasting and meaningful  

• way. We want the time and energy you spend here to have a positive impact on  

• your   life inside and outside of the office.  

What   We   Offer  

Our   total   rewards   package   goes   above   and   beyond   just   a   paycheck.   Whether   you’re   looking to build your career, improve your health, or protect your wealth, we offer generous benefits to help you achieve your goals.  

• Generous   401(K)   plan   with   an   impressive   employer   match  

•

• Compensation: $95,000-100,000 per year range with actual pay dependent on candidate overall skills for the role

• Excellent   health,   dental   and   vision   insurance   packages   to   fit   your   needs  

• Flexible   work   schedule   and   11   paid   holidays   a   year  

• Paid   time   off   (PTO)   policy   that   empowers   you   to   take   the   time   you   need   to   recharge  

• Education   assistance   to   support   your   learning   journey  

• Values-driven   culture   with   colleagues   that   rally   around   People,   Accountability,   Creativity   and   Excellence  

Entegris does not provide immigration-related sponsorship for this role. Do not apply for this role if you will need Entegris immigration sponsorship (e.g., H1B, TN, STEM OPT, etc.) now or in the future.  

At Entegris we are committed to   providing   equal opportunity to all employees and applicants. Our policy is to recruit, hire, train, and reward employees for their individual abilities, achievements, and experience without regard to race, color, religion, sexual orientation, age, national origin, disability, marital or military status.

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