Mechanical SME, Data Centers

JLL • LaGrange, GA

4d • $54 - $59 • Onsite

About The Position

JLL is hiring a Mechanical Subject Matter Expert (SME) to serve as the technical authority and strategic advisor for complex mechanical systems at a large hyperscale data center. The role provides consultative support to engineering teams, clients, and project stakeholders, and leads technical assessments and innovation initiatives to improve system performance, energy efficiency, and operational reliability.

The SME oversees critical facility systems and protocols, applies mechanical engineering principles to optimize data center cooling and airflow, and leads preventive maintenance, troubleshooting, incident response, and root cause analysis. The position also advances energy-saving and sustainability initiatives, ensures compliance with industry standards and regulations, mentors facility technicians and engineers, manages infrastructure projects, and coordinates with vendors and executive stakeholders. The role is based onsite in LaGrange, Georgia, and includes after-hours, call-in, and 24x7 response responsibilities for incidents involving the mechanical plant.

Requirements

• At least 4 years of technical experience in building engineering, with a strong background in HVAC, plumbing, electrical, and production equipment repair and maintenance.
• Experience working in data centers or raised-floor environments.
• Strong customer service and interpersonal skills.
• Universal EPA 608 Certification.
• CRAC (Liebert) maintenance and repair experience.
• Licenses as required by the authority having jurisdiction.
• Working knowledge of computer applications including Word and Excel.
• Two years of trade school or a documented apprenticeship in relevant craft skills.
• Valid driver's license.
• Ability to lift up to 80 lbs.; work at heights; frequently climb, bend, lift, kneel, stoop, and work or extend overhead; and work in extreme cold or heat.
• Ability to drive for long periods.
• Ability to climb a ladder with a 300 lb. weight limit while carrying an approximately 20 lb. tool bag, and to climb ladders up to 30 feet.
• Must be authorized to work in the United States without visa sponsorship.

Nice To Haves

• Expertise in one specific craft area: electrical, HVAC, piping/plumbing, central utility plant operations, or material handling equipment.
• Familiarity with building automation systems and fire/life safety.

Responsibilities

• Oversee HVAC, electrical, and plumbing systems specific to data center operations.
• Implement and maintain critical environment protocols and Method of Procedure (MOP) processes.
• Conduct regular performance analyses of facility mechanical and electrical systems.
• Apply mechanical engineering principles to improve data center efficiency and reliability.
• Design and implement cooling solutions optimized for high-density server environments.
• Analyze and enhance airflow management strategies.
• Develop and execute preventive maintenance schedules for critical infrastructure.
• Lead root cause analysis for system failures or inefficiencies and implement corrective actions and system upgrades.
• Serve as the first point of contact for service-impacting events involving the mechanical plant; help troubleshoot and mitigate incidents and create root cause analyses.
• Provide after-hours support, including 24x7 response, for the mechanical plant.
• Propose and implement energy-saving initiatives to reduce Power Usage Effectiveness (PUE), and evaluate and integrate suitable green technologies.
• Ensure adherence to industry standards, such as ASHRAE and ISO, and local regulations; oversee safety protocols and conduct safety audits.
• Maintain knowledge of data center best practices and emerging technologies.
• Mentor and guide facility technicians and engineers.
• Manage data center infrastructure projects, including expansions and upgrades.
• Collaborate with equipment vendors and service providers to ensure optimal system performance.
• Communicate infrastructure status and improvement plans to executive management.
• Be available for call-in work and perform other duties as required.

Benefits

• 401(k) plan with matching company contributions.
• Medical, dental, and vision care.
• Paid parental leave at 100% of salary.
• Paid time off and company holidays.
• Early access to earned wages through Daily Pay.
• Supportive culture and benefits that prioritize mental, physical, and emotional health.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed