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Building Systems Control Technician

Medical College of Wisconsin · Milwaukee, WI · Full time

Posted Mar 9, 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

Tell me about a time you made a change to a BAS program. How did you make sure it didn't break something else?

What they are checking: Caution and documentation when editing control logic in a complex, interconnected system.

How do you keep your skills current as control systems keep changing?

What they are checking: Commitment to ongoing self-study, which the posting lists as a responsibility.

What would you do

You get a BSL-3 room pressure alarm and a lab exhaust alarm at the same time. Which do you go to first and why?

What they are checking: Ability to prioritize alarms by risk to people and animals, the core of this role.

An animal housing room's temperature is drifting out of range overnight. What do you check?

What they are checking: Urgency and logic in protecting research animals whose studies depend on stable environments.

What do you do when a fire alarm comes in on the system?

What they are checking: Knowledge of fire system response procedures and coordination with safety and emergency teams.

The IT data center cooling alarm goes off on a weekend. Walk me through your response.

What they are checking: Quick action and clear escalation to protect critical systems when staffing is thin.

About the work

Walk me through how you'd troubleshoot a VAV box that won't hold its setpoint.

What they are checking: Hands-on controls troubleshooting, from sensor and actuator checks to the DDC programming.

How do you calibrate a pneumatic controller, and how is that different from a digital one?

What they are checking: Experience with both pneumatic and direct digital controls, which the posting requires.

How would you use trend logs to find a recurring problem that never shows up when you're there?

What they are checking: Skill using BAS data to diagnose intermittent issues, which the posting names directly.

How do you read a ladder logic diagram, and when have you modified one?

What they are checking: Familiarity with PLC logic, which the role uses alongside building controllers.

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The full job description

As published by Medical College of Wisconsin.

Summary Under the direction of the supervisor, respond to all Building Automation System (BAS) and Fire System (FS) alarms as they occur . Take appropriate action to ensure human and animal safety, while minimizing potential damage to mechanical equipment. Primary Responsibilities • Prioritize and take appropriate actions on all Fire and BAS alarms . Examples of critical system alarms are alarms associated with; Bio Safety Level-3 exhaust and room pressures, IT data center cooling systems, lab exhaust, and animal housing environment. • Diagnose and repair complex control system malfunctions. • Perform maintenance and precise calibration of pneumatic and direct digital control devices on multiple complex building control systems . Included but not limited to; Digital System Controllers, Application Specific Controllers, Programmable Logic Controls • Make minor software and/or hardware adjustments to the BAS as required to keep system functioning efficiently and within design parameters . Modify control system schematics and ladder logic diagrams as needed. • Perform routine BAS offline, override, and alarm status reports, as directed by the supervisor. Modify BAS trend log feature as required to pinpoint system deficiencies. • Conduct an on-going self-study to maintain a high technical proficiency as related to the maintenance and troubleshooting of MCW’s critical building systems. • Recommend HVAC and BAS design improvements. • Performs annual testing of steam condensate traps for proper operation. • Perform field surveys during planning stages of project renovations . Advise of potential difficulties or deficiencies of mechanical systems or utilities. • Ensure energy saving initiatives are engaged, especially during off-hour shifts. Back-up the Maintenance Mechanics and perform preventative maintenance or repairs on multiple building systems. 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: Associate’s degree Minimum Required Experience: 7 year ’s #LI-FL1 Physical Requirements Work requires occasionally lifting moderate weight materials, standing, or walking continuously. Work Environment Occasional exposure to dust, noise, temperature changes, or contact with water or other liquids. Work is performed in an environmentally 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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