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Facilities Engineer II-Full Time Nights

Northwestern Medicine · Lake Forest, IL · Full time · Health Care Provider

Posted Sep 17, 2026 · We last checked this listing on Oct 6, 2026

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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

The schedule is Sunday through Thursday, half past two to eleven. How does that fit your life?

What they are checking: Honest fit with an unusual week that the posting states plainly.

What would you do

A chiller trips on a hot afternoon with the hospital full. What do you do?

What they are checking: Whether they have a structured response and understand what is at stake.

How is running a hospital plant different from any other building?

What they are checking: Whether they understand that patients depend on this, which changes every decision.

When do you handle something yourself and when do you call for help?

What they are checking: Where their limit is, since the posting says minor supervision.

About the work

Tell me about your operating engineer license and the plants you have run.

What they are checking: That the license is current and the plant experience is comparable.

Walk me through your rounds at the start of an evening shift.

What they are checking: Whether they have a systematic routine, which is what prevents a failure.

What do you check on a high pressure boiler, and how often?

What they are checking: Specific knowledge of the equipment the posting names first.

Tell me about a fault you traced that had been intermittent.

What they are checking: Real diagnosis rather than replacing parts until it stops.

How do you hand over to the next shift so nothing is missed?

What they are checking: Handover, which is where plant problems are created.

What preventive maintenance have you owned, and how did you keep track of it?

What they are checking: Whether PM is a system for them or a list somebody else keeps.

Practice this interview out loud.

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The full job description

As published by Northwestern Medicine.

**This is a full time position at 40 hours per week located at Northwestern Medicine Catherine Gratz Griffin Lake Forest Hospital. The schedule is Tuesday to Saturday, 10:30pm to 7am. ** The Facilities Engineer II reflects the mission, vision, and values of NM, adheres to the organization’s Code of Ethics and Corporate Compliance Program, and complies with all relevant policies, procedures, guidelines and all other regulatory and accreditation standards. • As a licensed operating engineer, operates and maintains building mechanical systems and equipment. Power Plant equipment includes high pressure boilers, chillers, and medical air compressors. The goals are to operate the equipment safely, efficiently, and reliably with the minimal occurrences of unscheduled shutdowns. In addition, to provide comfortable condition and safe occupant ambient space. Responsibilities: • Operates and assists in maintaining and repairing all power plant equipment with minor supervision. Monitors other engineering systems and to take emergency actions as necessary. • Operates high pressure boilers and related equipment. Which includes chillers, cooling towers, domestic hot water heating system, water heating system, generators, electrical switchgear, energy management system. • Properly performs safety checks on plant equipment. Performs repairs and preventive maintenance on assigned equipment. • Cleans and paints equipment, piping, and associated accessories in power plant and mechanical rooms. • Chemically analyzes boiler, chiller, cooling tower and all closed loop systems. • Performs chemical analysis test and adds the correct amount of chemicals to keep a prescribed balance in boiler, cooling tower and closed loops. • Changes and disposes of chemical drums properly and uses proper safety equipment while working with chemicals. Understands the importance of chemical balance in all systems. • Responds to plant emergencies and knows location of firefighting equipment. • Responds to service requests and performs problem assessment, troubleshooting, correction, and documentation. • Performs scheduled maintenance and inspections in accordance with organizational and regulatory protocols, policies, and standards. • Operates facility equipment and systems on a routine and as needed basis in a safe and efficient manner. • May assist contractors/vendors with repairs, maintenance, and construction. Required: • High school diploma or equivalent • 2-3 years relevant building maintenance experience • Technical training in maintenance field; HVAC/R trade school certifiction or equivalent • Licensed as a Stationary Engineer OR the ability to obtain within 1 year of hire. • Valid driver’s license (must provide Driving Abstract) Preferred: • Hospital or military experience • One year training in Boiler Maintenance • Current universal refrigerant certification Northwestern Medicine is an equal opportunity employer (disability, VETS) and does not discriminate in hiring or employment on the basis of age, sex, race, color, religion, national origin, gender identity, veteran status, disability, sexual orientation or any other protected status. Background Check Northwestern Medicine conducts a background check that includes criminal history on newly hired team members and, at times, internal transfers. If you are offered a position with us, you will be required to complete an authorization and disclosure form that gives Northwestern Medicine permission to run the background check. Results are evaluated on a case-by-case basis, and we follow all local, state, and federal laws, including the Illinois Health Care Worker Background Check Act. Artificial Intelligence Disclosure Artificial Intelligence (AI) tools may be used in some portions of the candidate review process for this position, however, all employment decisions will be made by a person. Benefits We offer a wide range of benefits that provide employees with tools and resources to improve their physical, emotional, and financial well-being while providing protection for unexpected life events. Please visit our Benefits section to learn more. Sign-on Bonus Eligibility (if sign-on bonus offered for position): Internal employees and rehires who left Northwestern Medicine within 1 year are not eligible for the sign on bonus. Exception: New graduate internal employees seeking their first licensed clinical position at NM may be eligible depending upon the job family.

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