Instrumentation and Controls Technician

JLL empowers you to shape a brighter way

Our people at JLL are shaping the future of real estate for a better world by combining world class services, advisory and technology for our clients. We are committed to hiring the best, most talented people and empowering them to thrive, grow meaningful careers and to find a place where they belong. Whether you've got deep experience in commercial real estate, skilled trades or technology, or you're looking to apply your relevant experience to a new industry, join our team as we help shape a brighter way forward.

This role centers on keeping critical building systems running smoothly through proactive maintenance, timely repairs, and system optimization. You'll work hands-on with HVAC systems, plumbing, electrical infrastructure, and building automation controls, using your technical expertise to diagnose issues, prevent equipment failures, and ensure operational continuity. You'll be responsible for responding to maintenance requests, conducting routine inspections, coordinating with contractors, and maintaining detailed records while ensuring compliance with all safety protocols and building codes. This position offers the opportunity to make a tangible impact on facility performance while working in an environment where we embrace more innovative ways of working and prioritize opportunities to strengthen and advance your career.

What your day-to-day will look like:

Perform preventive maintenance on HVAC systems, plumbing, electrical systems, and building automation controls according to scheduled maintenance plans while identifying opportunities to improve system efficiency

Diagnose and repair mechanical, electrical, and plumbing issues using appropriate tools, equipment, and troubleshooting techniques, prioritizing issues based on safety and operational impact

Conduct routine inspections of building systems, safety equipment, and structural components to identify potential problems before they escalate into costly repairs or safety hazards

Maintain accurate maintenance logs, work orders, and equipment records using computerized maintenance management systems (CMMS) to track trends and support data-driven decision making

Coordinate with external contractors and vendors for specialized repairs, installations, and major maintenance projects, ensuring quality standards and cost-effectiveness

Required qualifications: 2+ years of hands-on experience in facilities maintenance, building operations, or related technical field

Working knowledge of HVAC systems, electrical systems, plumbing, and general mechanical systems

Strong troubleshooting and problem-solving abilities with demonstrated capacity to diagnose complex system issues

Valid driver's license and high school diploma or equivalent required

Physical ability to lift up to 50 pounds regularly, climb ladders, work in confined spaces and various weather conditions, and participate in after-hours emergency response and on-call rotation schedule as required 1st Shift/Morning Shift Monday thru Friday

This position does not provide visa sponsorship. Candidates must be authorized to work in the United States without sponsorship.

Location: On-site –St. Charles, MO If you think you are the right match for the following opportunity, apply after reading the complete description. If this job description resonates with you, we encourage you to apply, even if you don't meet all the requirements. We're interested in getting to know you and what you bring to the table! Personalized benefits that support personal well-being and growth:

JLL recognizes the impact that the workplace can have on your wellness, so we offer a supportive culture and comprehensive benefits package that prioritizes mental, physical and emotional health. Some of these benefits include: 401(k) plan with matching company contributions

Comprehensive Medical, Dental & Vision Care

Paid parental leave at 100% of salary

Paid Time Off and Company Holidays

Early access to earned wages through Daily Pay

At JLL, we harness the power of artificial intelligence (AI) to efficiently accelerate meaningful connections between candidates and opportunities. Using AI capabilities, we analyze your application for relevant skills, experiences, and qualifications to generate valuable insights about how your unique profile aligns with the specific requirements of the role you're pursuing.

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For candidates in the United States, please see a full copy of our Equal Employment Opportunity policy here .

Jones Lang LaSalle ("JLL") is an Equal Opportunity Employer and is committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation because of a disability for any part of the employment process – including the online application and/or overall selection process – you may email us at

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Accepting applications on an ongoing basis until candidate identified.