Sr. Mechanical Building Engineer - Critical Environment

US AMR-Jones Lang LaSalle Americas, Inc.; Spartanburg (SC); On-site; USD 90,000 - 140,000; Full time

Benefits offered by this job

401(k) plan with matching company

Medical, Dental & Vision

Paid parental leave

Paid Time Off and Holidays

Daily Pay

Job summary

JLL is seeking a Sr. Mechanical Building Engineer for critical environments in Spartanburg, SC.

You will serve as the technical cornerstone for advanced HVAC, cooling, and environmental control systems in mission-critical facilities, leading complex diagnostics, and mentoring junior staff to ensure uptime and efficiency. You will oversee operations and maintenance of chilling systems, pumps, piping, and BMS integrations, while coordinating upgrades and sustaining critical infrastructure with a

Qualifications

• Minimum 5 years of hands-on mechanical engineering in critical facilities with HVAC, plumbing, and production equipment.
• At least 3 years in data center or raised floor environments with complex cooling.
• EPA 608 Certification for refrigeration and environmental compliance.
• Strong analytical and problem-solving skills for complex mechanical systems.
• Demonstrated leadership and mentoring of technical teams.

Responsibilities

• Lead operations and maintenance of critical mechanical infrastructure including HVAC, chillers, CRAC/CRAH units, cooling towers, and air handling systems.
• Oversee complex chilled water systems, pumps, valves, piping, and filtration for optimal conditions.
• Perform advanced diagnostics and root-cause analysis on equipment failures and implement sustainable fixes.
• Apply engineering principles to design and implement high-density cooling solutions.
• Serve as escalation point for advanced mechanical issues requiring expertise.
• Develop preventive maintenance plans to ensure uptime and performance.
• Analyze system performance data to drive optimization and energy efficiency.
• Mentor junior technicians and engineers for technical excellence.
• Coordinate system upgrades and integrations of new tech.

Skills

HVAC systems

Mechanical engineering

Data center environments

Leadership

Diagnostics

Education

Bachelor's degree in Mechanical Engineering

Tools

Liebert CRAC/CRAH

Chillers

Building Automation (BMS)

Job description

Sr. Mechanical Building Engineer - Critical Environment

Spartanburg, SC 29302

Posted 2 Days Ago Full Time Less than 10 Applies

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 peopleand empowering them tothrive, 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 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.

At JLL, we are collectively shaping a brighter way — for our clients, ourselves and our fellow employees, and your technical mastery will be essential in ensuring mission-critical uptime and operational excellence. You'll lead sophisticated troubleshooting initiatives, mentor junior engineering staff, and drive innovative solutions that optimize both performance and energy efficiency. We embrace more innovative ways of working and prioritize opportunities to strengthen and advance your career, providing you with the platform to apply cutting‑edge mechanical engineering principles while managing large‑scale infrastructure projects. This role offers the perfect blend of technical challenge and leadership responsibility, allowing you to shape the future of critical facility operations while advancing your professional expertise .

What your day-to-day will look like:

• 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

Required qualifications:

• 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

Preferred qualifications:

• 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

#DCR #HVACJobs #BEjobs #OEjobs

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

Location:

On-site –Spartanburg, SC

Personalized benefits that support personal well‑being and growth:

• 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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