Senior Data Center Mechanical Lead Engineer

JLL; Spartanburg (SC); On-site; USD 90,000 - 130,000; Full time

Job summary

JLL is seeking a Senior Mechanical Building Engineer to oversee advanced mechanical systems for data centers and critical facilities. You will lead operations, troubleshoot complex HVAC and cooling infrastructure, and mentor engineers to uphold uptime and energy efficiency.

You will apply deep mechanical knowledge to design and implement optimized cooling strategies, coordinate major projects, and ensure compliance with environmental and safety standards across mission-critical environments.

Qualifications

• 5+ years hands-on experience in critical facility mechanical engineering (HVAC, plumbing, production equipment).
• 3+ years in data center or raised floor environments with complex cooling requirements.
• EPA 608 Certification and refrigeration expertise.
• Strong analytical and problem-solving capabilities; leadership experience.

Responsibilities

• Lead operations and maintenance of critical mechanical infrastructure including HVAC, chillers, CRAC/CRAH, and cooling towers.
• Oversee complex chilled water systems, pumps, valves, piping networks, and filtration for mission-critical ops.
• Diagnose equipment failures via root-cause analysis and implement sustainable solutions.
• Mentor junior staff and coordinate system upgrades and integrations with cutting-edge technologies.

Skills

HVAC systems

Chillers

Data center environments

Root cause analysis

Leadership

Technical communication

Project coordination

Emergency response

Education

Bachelor's degree in Mechanical Engineering

Universal EPA 608 Certification

Tools

CMMS

Job description

JLL is seeking a Senior Mechanical Building Engineer to oversee advanced mechanical systems for data centers and critical facilities. You will lead operations, troubleshoot complex HVAC and cooling infrastructure, and mentor engineers to uphold uptime and energy efficiency.

You will apply deep mechanical knowledge to design and implement optimized cooling strategies, coordinate major projects, and ensure compliance with environmental and safety standards across mission-critical environments.