Job Title: Senior Maintenance Supervisor Job Description: The Role Entegris is currently seeking a Senior Maintenance Supervisor / Planner to join our Engineering & Maintenance team. This position will be based in our Aurora, Illinois facility. This combined role is responsible for both the direct supervision of maintenance technicians and electricians across all shifts and the end-to-end planning and scheduling of all maintenance activities within the 845 Slurry production area. In this role, you will ensure that the right people, parts, and plans are in place before every maintenance window — minimizing unplanned downtime and maximizing wrench time. You will own the site's maintenance results as measured by key performance indicators while fostering a culture of safety, continuous learning, and operational excellence. The position reports to the Sr. Maintenance Manager and operates within a state-of-the-art facility that runs three shifts, five days a week. The Senior Supervisor / Planner also serves as backup to the Senior Maintenance Manager during planned time off, ensuring seamless operations and team leadership continuity. What You’ll Do Team Leadership & Supervision Directly supervise maintenance technicians and electricians across all shifts; ensure appropriate staffing levels are maintained to effectively support operations at all times. Hire, onboard, and train new maintenance technicians; manage payroll, punch times, and time-off requests to ensure compliance with department attendance policies. Provide technical guidance and coaching to the maintenance team; drive cascading goal setting, performance feedback, and individual development planning. Serve as backup to the Maintenance Manager during PTO, assuming responsibility for broader maintenance operations and team leadership. Maintenance Planning & Scheduling Develop and publish a rolling weekly and monthly maintenance schedule encompassing all preventive maintenance (PM), corrective work orders, and project-related activities — balancing production needs with maintenance resource availability. Manage the work order backlog: review, prioritize, and assign work orders; monitor aging; ensure work is completed within target timeframes and escalate overdue items as needed. Coordinate parts kitting and pre-staging — confirm all materials, tools, and documentation are ready before scheduled maintenance windows to maximize technician wrench time. Coordinate required downtime windows with production, operations, and quality teams to align planned maintenance activities with production schedules and minimize impact to output. Maintenance Program Ownership Utilize SAP-PM, Parsable, and Reliance ETQ to create, modify, implement, and oversee the preventive maintenance structure and programs for all production equipment. Own the site's maintenance performance results as measured by KPIs including PM completion rate, overall equipment effectiveness (OEE), spare parts inventory levels, and budget control. Use Ariba to purchase parts and services; manage relationships with external contractors and service providers, ensuring compliance with contractor safety requirements and company policies. Drive maintenance-level continuous improvement projects focused on safety, 5S, ergonomics, sustainability, and process efficiency. EHS & Compliance Adhere to and enforce all Entegris and site EH&S guidelines, policies, procedures, and permitting requirements; champion the safety culture within the maintenance team. Maintain strong housekeeping standards, a safe and orderly work environment, and compliance with ISO and quality standards across all maintenance activities. Support or lead EHS teams and safety improvement initiatives as needed. What We Seek Education & Experience Bachelor's degree is required. Bachelor’s degree in chemical, mechanical, electrical, or a related engineering field is a plus. Minimum of 5 years of experience in maintenance within a manufacturing environment, preferably in the chemical or specialty materials industry. Technical Skills Strong proficiency in maintenance management systems, specifically SAP-PM and Ariba; experience with Reliance ETQ is a plus. Demonstrated experience in maintenance planning and scheduling, including work order management, job plan development, and backlog management. Knowledge of preventive and predictive maintenance practices and continuous improvement methodologies. Proficient with Microsoft Office; familiarity with maintenance KPI reporting and data-driven decision-making. Core Competencies Proven leadership and team management skills, with the ability to motivate and guide a diverse team across multiple shifts. Excellent problem-solving skills and the ability to make timely, data-driven decisions in a fast-paced manufacturing environment. Strong communication and interpersonal skills; capable of working effectively with cross-functional teams including operations, quality, safety, and engineering. Flexible and adaptable to variable schedule changes; ability to respond to off-shift operational needs as required. Additional Requirements Familiarity with health, safety, and environmental regulations in a manufacturing context required. Six Sigma experience is a plus. Ability to lift up to 25 lbs; ability to work in a chemical manufacturing environment. 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. Compensation: $91,000 - $114,000 per year 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 with no delayed vesting Excellent health, dental and vision insurance packages to fit your needs Education assistance to support your learning journey A 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. #LI-TP1