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.

Critical Environment Lead Engineer – JLL

What this job involves:

The Critical Environment Lead Engineer ensures the proper implementation and maintenance of JLL's Critical Environments Preventive Maintenance Program across all designated Critical Facilities in their region. This role combines hands-on technical expertise with leadership responsibilities, as you'll operate, maintain, troubleshoot, and repair facility equipment while managing third-shift engineers. You'll play a crucial part in maintaining the critical infrastructure that supports our clients' most essential operations, directly contributing to JLL's reputation for operational excellence and reliability in mission-critical environments.

What your day-to-day will look like:

• Execute advanced system operations for all mechanical and electrical systems in critical facilities
• Perform daily inspections and equipment rounds, reviewing and logging all critical infrastructure equipment
• Complete corrective and preventative maintenance work orders through the Computer Management Maintenance System (CMMS)
• Supervise and manage third-shift engineers to ensure timely completion of all preventive maintenance activities
• Respond to alarms and abnormal conditions in critical areas when alerted by Building Management Systems (BMS), clients, or facility personnel
• Enforce Critical Environments Change Control Process requirements and maintain facility housekeeping standards
• Create detailed incident reports and implement emergency response protocols as necessary

Required Qualifications:

• Advanced knowledge of commercial or industrial building systems and critical infrastructure operations
• Proven experience in operating, maintaining, troubleshooting, and repairing complex facility equipment
• Strong leadership and team management capabilities for supervising engineering staff
• Ability to work flexible hours and respond to emergency situations outside normal business hours
• Excellent organizational skills with exceptional attention to detail
• Strong problem-solving abilities to define issues, collect data, establish facts, and draw valid conclusions
• Commitment to safety protocols and participation in required safety training programs

Preferred Qualifications:

• Technical school education or military training in relevant mechanical/electrical systems
• Experience with Computer Management Maintenance Systems (CMMS)
• Background in vendor management and contractor oversight
• Knowledge of Building Management Systems (BMS) and critical facility operations
• Experience in project management support and scope development
• Previous experience in mission-critical or data center environments
• Familiarity with emergency response protocols in critical infrastructure settings

Location: Onsite

Work Shift: First shift supervision and emergency response availability required

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

Location:

On-site –St. Louis, 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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Jones Lang La Salle (JLL), together with its subsidiaries and affiliates, is a leading global provider of real estate and investment management services. We take our responsibility to protect the personal information provided to us seriously. Generally the personal information we collect from you are for the purposes of processing in connection with JLL’s recruitment process. We endeavour to keep your personal information secure with appropriate level of security and keep for as long as we need it for legitimate business or legal reasons. We will then delete it safely and securely.

For more information about how JLL processes your personal data, please view our Candidate Privacy Statement.

For additional details please see our career site pages for each country.

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

Jones Lang La Salle (“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 HRSCLeaves@jll.com. 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.