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Senior Mechanical Building Engineer - Critical Environment

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JLL

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Location:
United States , Spartanburg

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Contract Type:
Not provided

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Salary:

Not provided

Job Description:

As a Senior Mechanical Building Engineer at JLL, you will serve as the technical cornerstone for advanced mechanical systems that sustain today's most critical data center and facility environments. This senior-level role combines deep mechanical engineering expertise with hands-on operational leadership, positioning you as the go-to expert for complex HVAC systems, chillers, cooling infrastructure, and environmental control systems.

Job Responsibility:

  • Lead comprehensive operations and maintenance of critical mechanical infrastructure including HVAC systems, chillers, CRAC/CRAH units, cooling towers, and air handling systems
  • Oversee complex chilled water systems, pumps, valves, piping networks, and filtration systems to maintain optimal environmental conditions for mission-critical operations
  • Execute advanced diagnostics and root cause analysis on sophisticated mechanical equipment failures, implementing sustainable solutions
  • Apply mechanical engineering principles to design and implement cooling solutions optimized for high-density server environments and evolving technology demands
  • Serve as the primary escalation point for Level 1 and Level 2 mechanical issues requiring advanced technical expertise and critical problem-solving
  • Develop and execute comprehensive preventive maintenance schedules that ensure 100% uptime and peak performance across all mechanical infrastructure
  • Analyze mechanical system performance data and implement optimization strategies that reduce Power Usage Effectiveness and enhance sustainability
  • Mentor and guide junior mechanical technicians and engineers, fostering technical excellence and professional development within the team
  • Coordinate complex mechanical infrastructure projects including system upgrades, expansions, and integration of cutting-edge technologies

Requirements:

  • Minimum 5 years of hands-on technical experience in critical facility mechanical engineering with expertise in HVAC, plumbing, and production equipment
  • At least 3 years of specialized experience in data center or raised floor environments with complex cooling requirements
  • Advanced technical knowledge of CRAC/CRAH systems (Liebert preferred), chillers, and comprehensive cooling infrastructure operations
  • Current Universal EPA 608 Certification demonstrating expertise in refrigeration and environmental compliance
  • Strong analytical and problem-solving capabilities for diagnosing and resolving complex mechanical system challenges
  • Demonstrated leadership and mentoring experience with ability to guide technical teams and drive operational excellence
  • Excellent verbal and written communication skills for creating technical documentation, training programs, and stakeholder reporting
  • Physical capability to lift up to 80 pounds, work at heights up to 30 feet, and operate in extreme temperature conditions and confined spaces
  • Availability for emergency response calls, holiday coverage, and varied schedules as critical operations demand

Nice to have:

  • Bachelor's degree in Mechanical Engineering or equivalent technical education with focus on HVAC and building systems
  • Specialized expertise in Central Utility Plant Operations and advanced building automation systems integration
  • Professional mechanical engineering license or industry-recognized advanced technical certifications
  • Comprehensive experience with computerized maintenance management systems for large-scale facility operations
  • Knowledge of fire and life safety systems integration with mechanical equipment and emergency protocols
  • Proven experience with energy management systems and successful implementation of sustainability initiatives that reduce environmental impact
What we offer:
  • 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

Additional Information:

Job Posted:
February 20, 2026

Employment Type:
Fulltime
Work Type:
On-site work
Job Link Share:

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