Mechanical Building Engineer - Critical Environment

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.   

As a Mechanical Building Engineer at JLL, you will play an essential role in supporting the sophisticated mechanical operations that keep critical data center and facility environments running at peak performance. This position offers an outstanding opportunity to build your expertise in advanced mechanical systems while working alongside experienced engineers who are dedicated to your professional growth and success. We believe the most effective teams are built when everyone is empowered to thrive, and in this role, you'll gain valuable hands-on experience with complex HVAC equipment, chillers, cooling systems, and environmental control technologies. You'll contribute to daily monitoring and maintenance activities while learning from senior engineers who will guide your development in critical facility operations.  

*Day Shift and Night Shift Available 

What your day-to-day will look like: 

• Conduct daily mechanical system inspections including HVAC equipment, chillers, CRAC/CRAH units, and cooling systems to ensure optimal operational performance 

• Monitor critical mechanical parameters including temperatures, pressures, and flow rates, alerting senior staff to any abnormal conditions requiring attention 

• Execute basic preventive maintenance tasks on mechanical equipment following established procedures and safety protocols 

• Assist with routine maintenance activities including filter changes, belt inspections, and mechanical component servicing under senior engineer supervision 

• Support chilled water systems, air handling units, and cooling tower operations while learning thermal management principles for data center environments 

• Participate in mechanical troubleshooting activities under supervision, gaining valuable experience with diagnostic procedures and problem-solving techniques 

• Follow established safety protocols for all mechanical work including lockout/tagout procedures and hazardous material handling 

• Manage mechanical work orders through CMMS systems and assist with vendor coordination for routine maintenance activities 

• Maintain accurate documentation of maintenance activities, system performance data, and equipment status reports 

Required qualifications: 

• Minimum 2-4 years of technical experience in building mechanical systems with background in HVAC, plumbing, or related mechanical disciplines 

• Solid understanding of mechanical fundamentals including HVAC principles, equipment operation, and basic troubleshooting techniques 

• Universal EPA 608 Certification or demonstrated ability to obtain certification within 90 days of employment 

• Strong commitment to learning and professional development while working under supervision of senior engineers 

• Effective verbal and written communication skills for accurate documentation, reporting, and team collaboration