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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.   

Operating Engineer – Event Facility

Position Summary

The Operating Engineer is a skilled technical professional responsible for the hands-on operation, maintenance, and repair of building systems in a premier event facility. Reporting to the Facilities Manager, this role combines traditional building engineering with customer-facing event support, requiring technical competence, professional conduct, and a strong service orientation. This position offers excellent opportunities for facilities professionals who value direct client interaction and seek professional growth through exposure to complex systems and the unique demands of a high-profile event environment.

Key Responsibilities

Building Systems Operation & Maintenance Operate, monitor, and adjust mechanical, electrical, and plumbing systems including HVAC equipment, chillers, boilers, pumps, electrical distribution, emergency generators, and fire protection systems. Perform scheduled facility rounds, respond to building automation alarms, and maintain accurate operational logs. Execute preventive maintenance tasks including filter changes, belt adjustments, lubrication, coil cleaning, and safety system testing. Document all activities in the computerized maintenance management system (CMMS) with accurate work details, parts usage, and equipment observations.

Equipment Troubleshooting & Repair Diagnose and repair routine equipment problems including motor replacements, control component repairs, valve adjustments, sensor calibrations, minor electrical repairs, and plumbing fixture corrections. Use diagnostic tools such as multimeters, pressure gauges, and temperature instruments to identify root causes. Escalate complex technical problems to the Facilities Manager or specialized contractors. Respond promptly to work orders, prioritize based on urgency and event schedules, and maintain clear communication regarding repair timelines and completion status.

Event Support & Client Services Conduct pre-event facility inspections to verify HVAC performance, lighting functionality, and overall readiness. Provide responsive technical support during events with minimal disruption to programs. Interact professionally with event planners, production staff, and vendors regarding technical matters, facility capabilities, and operational requirements. Adjust environmental conditions and resolve technical issues quickly while maintaining professional appearance and demeanor. Perform post-event inspections to identify damage, document concerns, and reset systems to normal operating modes.

Facility Appearance & Cosmetic Maintenance Maintain facility in pristine condition through paint touch-ups, drywall repairs, ceiling tile replacement, door hardware adjustments, and fixture maintenance. Clean and polish decorative elements, replace light bulbs promptly, and address minor finish deterioration proactively. Inspect flooring for damage and trip hazards, perform minor repairs, and coordinate floor protection during events. Conduct regular facility walkthroughs from a guest perspective to identify maintenance needs and ensure premium presentation standards before client arrivals.

Vendor Coordination & Safety Compliance Provide facility access for contractors performing scheduled work, explain requirements, and monitor activities for safety compliance and quality standards. Observe specialized service work to expand technical knowledge. Follow all safety policies including lockout/tagout, confined space entry, fall protection, and PPE requirements without exception. Participate in safety training, identify and report hazards immediately, and maintain required safety certifications through timely renewal training.

Required Qualifications

Education & Experience

• High school diploma or GED required
• 3–5 years of experience in commercial building operations and maintenance with hands-on HVAC, controls, and facility systems experience
• Demonstrated mechanical aptitude and ability to troubleshoot equipment independently
• Proven reliability working as part of a facilities team

Technical Competencies

• Working knowledge of commercial HVAC systems (air handlers, rooftop units, exhaust fans, controls)
• Familiarity with central plant equipment (chillers, boilers, cooling towers, pumps)
• Understanding of electrical systems, lighting, motor controls, and basic troubleshooting
• Basic plumbing and fire protection systems knowledge
• Hands-on maintenance skills: filter changes, belt adjustments, lubrication, minor repairs, component replacement
• Ability to use hand tools, power tools, multimeters, pressure gauges, and diagnostic instruments safely
• Cosmetic repair capability: painting, drywall patching, carpentry, fixture maintenance

Software & Systems

• Basic proficiency with computerized maintenance management systems (CMMS)
• Fundamental computer skills: email, web browsing, document viewing
• Basic building automation system (BAS) interface navigation for monitoring equipment and adjusting setpoints
• Ability to learn facility-specific software platforms through training

Certifications & Licenses

• Valid driver's license with clean driving record required
• State/local stationary engineer's license or building operator's permit as required by jurisdiction (or commitment to obtain within specified timeframe)
• Commitment to pursuing professional development and additional certifications

Professional Attributes

• Professional interpersonal and customer service skills for interacting with clients, guests, contractors, and colleagues
• Clear verbal and written communication for explaining technical issues and documenting work
• Reliable attendance, strong work ethic, attention to detail, and quality workmanship
• Self-motivated with initiative to identify and address facility needs proactively
• Flexibility to adapt to shifting priorities based on operational demands and event schedules
• Team-oriented mindset and positive attitude during challenging situations
• Professional appearance and conduct appropriate for customer-facing interactions
• Learning orientation with genuine interest in expanding technical knowledge

Preferred Qualifications

• Technical training from trade school, community college, or apprenticeship program in HVAC, electrical, plumbing, or related trades
• Prior experience in customer-facing facilities such as hotels, convention centers, performing arts venues, or event spaces
• Universal EPA Section 608 refrigerant handling certification
• OSHA 10-hour or 30-hour General Industry safety certification
• Advanced building automation system (BAS) proficiency
• Understanding of control sequences and BAS programming impacts on equipment operation

Working Conditions

Physical Requirements Frequent climbing of ladders and stairs to access rooftop and elevated equipment. Regular work in mechanical rooms with exposure to temperature extremes, noise, vibration, and operating machinery. Lift and carry up to 50 pounds regularly; occasionally move heavier items with assistance. Extended periods of standing, walking, bending, kneeling, crawling, and working in awkward positions. Manual dexterity for detailed repair work and visual acuity for reading gauges, drawings, and identifying cosmetic defects.

Schedule & Availability Standard schedule typically includes five eight-hour shifts per week with regular evening and weekend shifts as assigned. Participation in on-call rotation for after-hours emergency response. Schedule flexibility required to support major events, maintenance activities during low-occupancy periods, and operational coverage needs. Presence required during certain events for immediate technical support. Occasional extended hours during multi-day or consecutive event schedules.

Environmental Conditions Exposure to mechanical equipment areas with elevated noise, temperature extremes, dust, and operating machinery. Work in outdoor weather conditions for exterior maintenance and rooftop equipment inspections. Occasional exposure to refrigerants, chemicals, lubricants, and paints with appropriate PPE provided. Work in occupied event spaces during active programs requiring minimal noise and heightened awareness.

JLL is committed to providing a safe, diverse, and inclusive workplace. We are an equal opportunity employer and encourage applications from all qualified candidates.

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

Location:

On-site –O'Fallon, MO

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 may 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 [email protected]. This email is only to request an accommodation. Please direct any other general recruiting inquiries to our Contact Us page > I want to work for JLL.

Accepting applications on an ongoing basis until candidate identified.