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Salary
$112k – $119k per year
Location
In office (San Luis Obispo)
Seniority
Senior · 5+ years exp
Visa
H-1B filings in 12 months: 29 · green card filings: 19
Employment
Full-Time

First seen by Alion on Oct 20, 2026. Entegris scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Entegris is a specialty materials and process solutions company headquartered in Billerica, Massachusetts, supplying the semiconductor industry with specialty chemicals, CMP slurries and cleaning solutions, deposition precursors, filtration, fluid handling and wafer carriers. Listed on Nasdaq and enlarged by its 2022 acquisition of CMC Materials, it runs manufacturing and technology sites across the United States, Taiwan, South Korea, Japan, Malaysia, Singapore and France. It hires manufacturing and process technicians, chemical and machine operators, manufacturing, reliability and product development engineers, lab technicians, scientists and supply chain staff.

Job Title:

Senior Engineer, Mechanical Engineering

Job Description:

The Role:

Entegris is currently seeking a talented and motivated Senior Engineer, Mechanical Engineering to join our team, focusing on the development and optimization of gas purification systems. This position is responsible for designing, documenting, analyzing, testing, and collaborating across functions to implement advanced technologies in gas purification systems. This position will report to the Manager, New Product Development Engineering.

What You’ll Do:

  • Create and refine mechanical components and sub-systems.
  • Work cross functionally to integrate mechanical systems with electricaland controls sub-systems.
  • Conduct simulations and analysis to evaluate system performance and reliability.
  • Conduct rigorous testing and validation to ensure performance, reliability, and compliance with industry standards.
  • Work closely with cross-functional teams, including fellow mechanical engineers, controls engineers, and electrical engineers for full systems integration.
  • Analyze and optimize purification processes to enhance efficiency, reduce energy consumption, and minimize environmental impact.
  • Prepare detailed technical documentation, including engineering drawings, design specifications, and test reports.
  • Stay updated with the latest advancements in gas purification technologies and contribute to continuous improvement initiatives.
  • Any other duties as assigned.

What We Seek:

  • Bachelor’s degree in Mechanical Engineering or equivalent engineering degree.
  • Minimum 5-8 years of experience in mechanical engineering with a Bachelor’s degree; or 3-6 years of experience with a Master’s degree.
  • Proficiency in SolidWorks CAD software, and simulation tools (e.g., SolidWorks Simulation, ANSYS).
  • SolidWorks 3D CAD and 2D drawing experience.
  • Draftsight/AutoCAD 2D CAD experience a plus.
  • PYTHON experience a plus.
  • JIRA experience a plus.
  • Strong analytical and problem-solving skills, with the ability to troubleshoot complex systems and processes.
  • Excellent verbal and written communication skills, with the ability to convey technical information clearly and concisely.
  • Ability to work effectively in a collaborative team environment and manage multiple projects simultaneously. Advises and mentors less experienced engineers.
  • A proactive mindset with a passion for innovation and sustainability.

Why work at Entegris?

Lead. Inspire. Innovate. Define Your Future.

Not everyone who works for a global company shares the same background, experiences and perspectives. We leverage the differences of our employees to bring 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:

At Entegris, we invest in providing opportunities to our employees and promote from within. The new hire in this role will have the potential to grow and create relationships across the organization and be recognized for demonstrated success and adherence to company PACE values.

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.

  • Compensation: $112,000-$119,000/yr range with actual pay dependent on candidate overall skills for the role.
  • Annual bonus eligibility.
  • Progressive paid time off policy that empowers you to take the time you need to recharge.
  • Generous 401(K) plan with an impressive employer match - fully vested.
  • Excellent health, dental and vision insurance packages to fit your needs.
  • Education assistance to support your learning journey.
  • Values-driven culture with colleagues that rally around People, Accountability, Creativity and Excellence.

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.

Entegris does not intend to hire experienced or entry level job seekers who will need, now or in the future, Entegris sponsorship through H-1B ("H-1B lottery")

ENT363

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