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HVAC Technician I - Third Shift

Medical College of Wisconsin · Milwaukee, WI · Full time

Posted Sep 1, 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

This is a third shift job. What experience do you have working overnight, and how do you stay alert?

What they are checking: Whether they can work nights reliably and safely.

Tell me about a time you learned a new system or skill on the job.

What they are checking: Whether they are willing to keep learning in an entry-level technician role.

What would you do

You need to take smoke heads or an FM200 system out of service for a contractor. What steps do you follow?

What they are checking: Whether they respect fire safety procedures and coordinate before disabling life-safety systems.

During an overnight inspection you find a problem you can't fix on your own. What do you do?

What they are checking: Whether they know when to escalate and report clearly instead of leaving it for morning.

About the work

Walk me through how you would troubleshoot an air handler that isn't keeping a lab at the right temperature.

What they are checking: Whether they can troubleshoot step by step instead of guessing at parts.

What experience do you have replacing fan and pump motors, seals, bearings or pneumatic controllers?

What they are checking: Whether they have real hands-on mechanical skills for the repairs named in the posting.

Have you used building automation systems or Phoenix Controls for lab airflow? What did you do with them?

What they are checking: Whether they can work with the control systems that keep research buildings safe.

Why does airflow in research labs and fume hoods matter so much?

What they are checking: Whether they understand that lab ventilation protects people from hazardous chemicals.

What brazing or piping work have you done, such as gas, air or vacuum lines?

What they are checking: Whether they have the skills for the small projects the role includes.

How do you keep yourself safe with lockout/tagout and work around energized equipment?

What they are checking: Whether they follow safety procedures every time, especially working alone at night.

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The full job description

As published by Medical College of Wisconsin.

Summary This position involves specific day to day responsibilities in the MCW buildings as well as supervised responsibilities in repair and replacement aspects of HVAC and other Research Building mechanical systems. Primary Responsibilities • Under supervision, assist or independently perform preventative maintenance, troubleshoot and/or repair multiple building systems. • Perform daily, weekly, and monthly inspections of equipment. Apply basic troubleshooting skills to minor system malfunctions as detected during daily, weekly, or monthly inspections. Advise supervisor of any system malfunctions. • Under supervision, perform repair, and or replacement of, but not limited to; fan and pump motors, pumps, seals and bearings, sinks, toilets, pneumatic controllers, pneumatic – electric transducers, backflow preventers, refrigeration devices, automatic an • Under supervision, assist or independently perform small projects such as installing natural gas, air and vacuum system piping to fume hoods. Shutdown heating and cooling systems for maintenance or repair. Skills for these projects may require brazing a • Prepare systems for contractor work. This may include draining and filling of fire sprinkler systems, complete or partial shutdowns of HVAC systems, taking smoke heads and or FM200 systems out of service. • Access Building Automation, Phoenix Control, and Fire systems as necessary for minor software adjustments and monitoring. Fill out appropriate forms as required. • Continue educational training or certification at the discretion of the Maintenance Supervisor for; Mechanical Building Systems, Building Automation System, Backflow Prevention, State and Federal Refrigerant License, Forklift Operator’s License, and add • Other duties as assigned. Knowledge – Skills – Abilities • Knowledge of safety practices, emergency procedures, operations and maintenance, risk management, planning and evaluation. • Task management, coordination, and problem solving. Qualifications Appropriate experience may be substituted for education on an equivalent basis. Minimum Required Education: High school or equivalent. Minimum Required Experience: 1 year Physical Requirements Work requires heavy physical effort, but not for continuous periods requiring endurance. Work Environment Continuous exposure to extremely distracting working conditions requiring protective clothing. Work is frequently not performed in a controlled environment. Sensory Acuity Ability to detect and translate speech or other communication required. May occasionally require the ability to distinguish colors and perceive relative distances between objects. Why MCW? • Outstanding Healthcare Coverage, including but not limited to Health, Vision, and Dental. Along with Flexible Spending options • 403B Retirement Package • Competitive Vacation and Paid Holidays offered • Tuition Reimbursement • Paid Parental Leave • Employee & Family Assistance Program (EFAP) • Pet Insurance • On campus Fitness Facility, offering onsite classes • Additional discounted rates on items such as: Select cell phone plans, local fitness facilities, Milwaukee recreation and entertainment etc. For a brief overview of our benefits see: Benefits Overview For a full list of positions see: MCW Careers At MCW all of our endeavors, from our internal operations to our interactions with our partners, are driven by our shared organizational values: Caring – Collaborative – Curiosity – Inclusive – Integrity – Respect. We are committed to fostering an inclusive environment that values diversity in backgrounds, experiences, and perspectives through merit-based processes and in alignment with all applicable laws. We believe that embracing human differences is critical to realize our vision of a healthier world, and we recognize that a healthy and thriving community starts from within. Our values define who we are, what we stand for and how we conduct ourselves at MCW. If you believe in embracing individuality and working together according to these principles to improve health for all, then MCW is the place for you. For more information, please visit our institutional website . MCW as an Equal Opportunity Employer and Commitment to Non-Discrimination: The Medical College of Wisconsin (MCW) is an Equal Opportunity Employer. We are committed to fostering an inclusive community of outstanding faculty, staff, and students, as well as ensuring equal educational opportunity, employment, and access to services, programs, and activities, without regard to an individual's race, color, national origin, religion, age, disability, sex, gender identity/expression, sexual orientation, marital status, pregnancy, predisposing genetic characteristic, or military status. Employees, students, applicants or other members of the MCW community (including but not limited to vendors, visitors, and guests) may not be subjected to harassment that is prohibited by law or treated adversely or retaliated against based upon a protected characteristic.

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