Jobs › Entegris

Pilot Plant Operator, 2nd Shift, Mon-Fri, 2:30 pm-10:30 pm

Entegris · Aurora, IL · $23.00–$25.00 an hour · Full time

Posted Sep 25, 2026 · We last checked this listing on Oct 6, 2026

Apply at Entegris

Likely interview questions for this role

Written from this job description, not a generic list. Each one notes what the interviewer is really checking.

About your past

Tell me about a time you troubleshot a piece of equipment like a pump, mixer, or filter.

What they are checking: Whether they have hands-on troubleshooting skills for the standard unit operations in the posting.

Tell me about a time you suggested a change to a process or recipe that made it work better.

What they are checking: Whether they contribute ideas to make recipes and processes more robust, as the role asks.

What would you do

You're following a detailed work instruction to make a lab-scale slurry, and a measurement comes out of range. What do you do?

What they are checking: Whether they stop and follow procedure for deviations instead of adjusting on their own or ignoring it.

How would you handle processing batch transactions in an ERP system when the physical count doesn't match the system?

What they are checking: Whether they investigate and report inventory mismatches rather than forcing the numbers to agree.

Second shift often has fewer people around to ask. How do you handle problems when your supervisor isn't available?

What they are checking: Whether they can use good judgment independently while knowing when something has to wait or be escalated.

About the work

Tell me about your experience handling and storing chemicals. What safety steps do you never skip?

What they are checking: Whether they have real chemical handling habits that keep themselves and others safe.

What does an out-of-control condition mean to you, and how would you help resolve one?

What they are checking: Whether they understand process control basics and their role in spotting and reporting OOC conditions.

How do you make sure your documentation is accurate and timely during a busy shift?

What they are checking: Whether they record results as they go, since experimental results depend on accurate records.

Have you worked in a cleanroom? What habits matter most to keep it clean?

What they are checking: Whether they understand contamination control, which is critical for samples going to semiconductor customers.

Why does equipment calibration matter in a pilot plant?

What they are checking: Whether they understand that uncalibrated equipment makes experimental results meaningless.

Practice this interview out loud.

Offer builds a real interview for this exact role at Entegris from your resume and this job description, asks the questions one at a time, and tells you what landed. The first one is free.

Practice this out loud

The full job description

As published by Entegris.

Job Title: Pilot Plant Operator, 2nd Shift, Mon-Fri, 2:30 pm-10:30 pm Job Description: The Role: Our 870 Aurora site is seeking a Pilot Plant Associate II (2nd shift) to join our Operations team. The role is responsible for routine support of one or more pilot plant functions and sustaining activities. Responsibilities include Cleanroom & customer sample manufacture and process development. Sustaining activities include inventory control, routine maintenance, troubleshooting equipment, and instrumentation, developing and updating department systems, and processing ERP batch transactions. What You’ll Do: • Executes routine/sequential tasks using detailed work instructions to manufacture lab or pilot scale slurries. Tasks include storage, handling, and use of chemicals; routine physical property measurements; operation of standard unit operations (mixers, pumps, filters); timely & accurate documentation of results. • Identify and assist in the resolution of process OOC conditions • Uses good judgment to recognize and address deviations from standards, and equipment calibration to assure a high degree of accuracy and consistency in experimental results • Uses an understanding of equipment, instrumentation, and project goals to contribute to the development of accurate, detailed, and robust recipes as well as capable and robust processes • Follows established procedures and comply with standard systems to order, receive, handle, store, and ship materials as well as maintain equipment and instrumentation • Troubleshoots equipment and perform basic maintenance. DIW and Wastewater System checks. Verify and calibrate equipment as appropriate • Disposes of Non-hazardous waste material, stocks lab supplies, and completes general daily housekeeping • Actively participates in Entegris Safety initiatives and processes. Adheres to all EH&S guidelines and policies within the company, all relevant ISO procedures and maintains personal safety within the workplace What We Seek: • Basic mathematical skills • Proven understanding of equipment and instrumentation • Ability to operate and troubleshoot basic laboratory and pilot-scale equipment and instrumentation • Ability to construct experimental processes from basic components • Proficient with Microsoft Office applications (Word, Excel, Outlook, PowerPoint, etc.) • Flexible and adaptable to variable schedule changes • Quality-minded with a strong customer focus. • Ability to drive Forklift to transport Raw materials/Finish goods • Acquire Job Certification after one year (Forklift, Slurry room, Customer Sample) • Ability to work independently in a multi-tasking mode as well as a contributor in a team environment • Effective oral and written communication skills and good interpersonal skills. • Able to lift up to 50lbs Education & Experience: • High school diploma or equivalent with 1-year  required. • Experience in a manufacturing environment. Working Schedule: • Monday - Friday 2:30pm - 10:30pm (overtime may be required, as per business needs) • Weekend shifts will vary when needed Outstanding Candidates Will Have: • Relative Industry • Ability to multi-task • Attention to Detail 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. • Generous 401(K) plan with an impressive employer match • Excellent health, dental and vision insurance packages to fit your needs • 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 • Eligible for Employee Incentive program • Salary range is $23-$25 per hour depending upon experience. 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 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 • Excellent health, dental and vision insurance packages to fit your needs • 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.

Apply at Entegris