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Facilities Engineer II-MOB Full Time Days

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

You are on call one week in about four. What does that week look like for you?

What they are checking: The posting states the on-call rotation precisely.

Half past six in the morning to three, Monday to Friday, based at Lake Forest. How does that fit your life?

What they are checking: The posting states the hours, the days and the base.

What would you do

A system fails during clinic hours. Walk me through what you do.

What they are checking: The posting names taking action on engineering systems, and a failure interrupts patient care.

How does working in a medical office building differ from any other building?

What they are checking: The posting supports multiple medical office buildings, where the occupants are patients.

How do you cover several buildings across the north suburbs in one day?

What they are checking: The posting names supporting multiple medical office buildings across a service area.

About the work

Tell me about operating and maintaining building mechanical systems.

What they are checking: The posting names operating and maintaining building mechanical systems and power plant equipment.

Walk me through your daily checks on a high pressure boiler.

What they are checking: The posting names operating high pressure boilers and related equipment.

How do you run and maintain chillers and cooling towers?

What they are checking: The posting names chillers, cooling towers and the domestic hot water system.

What do you watch for in water treatment, and why does it matter in a medical building?

What they are checking: The posting names water treatment and legionella risk makes it a patient safety matter.

Where are you with your operating engineer licence?

What they are checking: The posting names a licensed operating engineer.

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The full job description

As published by Northwestern Medicine.

**This is a full-time, 40-hour-per-week position supporting multiple medical office buildings across the northern suburban Chicago area. The service area spans from Gurnee (north) to Glenview (south) and west to Grayslake. The schedule is Monday through Friday, 6:30 a.m. to 3:00 p.m., with an on-call rotation required (one week of on-call coverage approximately every four weeks) ** 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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