Mechanical Engineer

Jones Lang LaSalle Incorporated; Kulai; On-site; MYR 120,000 - 190,000; Full time

Job summary

Jones Lang LaSalle Incorporated in Johor Bahru, Malaysia seeks a Data Center Mechanical Engineer to implement, maintain, and optimize cooling infrastructure for mission-critical data centers. You will drive thermal management, environmental control, and uptime across IT operations.

Responsibilities include developing drawings, managing CRAC/CRAH systems, and integrating BMS/DCIM while ensuring compliance with industry standards.

Qualifications

• Bachelor's degree in Mechanical Engineering required.
• 5-7 years of mechanical engineering experience with 3+ years in data center facilities.
• Experience with precision cooling systems and thermal management in high-density computing environments.
• Familiarity with Uptime Institute Tier classifications and ASHRAE guidelines.

Responsibilities

• Develop mechanical drawings, equipment schedules, and airflow diagrams.
• Oversee CRAC/CRAH units, in-row cooling, and rear-door heat exchangers.
• Monitor and optimize CRAC/CRAH operation and chilled water systems.
• Configure and maintain Building Management Systems (BMS) and DCIM integration.
• Lead mechanical engineering aspects of data center projects from design to turnover.
• Ensure compliance with IMC, ASHRAE standards, and local codes.

Skills

CFD modeling

AutoCAD

Revit MEP

BMS integration

Thermal management

Project coordination

Education

Bachelor's degree in Mechanical Engineering

Master's degree preferred

Tools

AutoCAD

Revit MEP

6SigmaRoom / CFD tools

Job description

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.

Data Center Mechanical Engineer Position Overview

The Data Center Mechanical Engineer is responsible for implementing, maintaining, and optimizing mechanical systems and critical cooling infrastructure within mission-critical data center environments. This role ensures reliable thermal management, optimal environmental conditions, and maximum uptime while supporting continuous IT operations and maintaining compliance with industry standards.

Key Responsibilities Critical Cooling Systems

• Develop mechanical drawings, equipment schedules, airflow diagrams, and piping layouts.
• Identify and report SPOFs within the design of cooling architectures (N, N+1, 2N) to meet Uptime Institute Tier II, III, or IV certification requirements.
• Calculate cooling loads, CFD modeling, and thermal capacity planning for current and future IT infrastructure density requirements.

HVAC and Precision Cooling Management

• Oversee operation of computer room air conditioning (CRAC) units, computer room air handlers (CRAH), in-row cooling systems, and rear-door heat exchangers.
• Manage chilled water systems including chillers, pumps, cooling towers, heat exchangers, and distribution piping.
• Implement and optimize free cooling, economizer systems, and adiabatic cooling technologies.
• Monitor and maintain environmental conditions including temperature, humidity, and airflow to ensure optimal IT equipment performance.

Thermal Management and Optimization

• Conduct thermal assessments using temperature mapping, hot spot identification, and airflow visualization techniques.
• Implement containment strategies including hot aisle/cold aisle configuration, blanking panels, and physical separation systems.
• Optimize air distribution through computational fluid dynamics (CFD) analysis and real-time monitoring.
• Address thermal challenges in high-density computing environments including rack-level cooling solutions.

Building Management Systems (BMS)

• Configure, program, and maintain BMS platforms for monitoring and control of mechanical systems.
• Develop control sequences, setpoints, and alarm parameters for automated system operation.
• Integrate DCIM platforms with mechanical systems for comprehensive infrastructure visibility.
• Analyze trending data to identify performance issues and optimization opportunities.

Mechanical Infrastructure Operations

• Perform routine inspections, testing, and preventive maintenance on cooling equipment including chillers, pumps, cooling towers, and air handling systems.
• Troubleshoot mechanical failures, cooling deficiencies, and equipment malfunctions with minimal impact to IT operations.
• Coordinate maintenance windows and implement change management procedures for mechanical system modifications.
• Monitor system performance metrics including cooling efficiency, equipment runtime, and energy consumption.

Energy Efficiency and Sustainability

• Analyze cooling system efficiency and identify opportunities to reduce energy consumption and improve PUE (Power Usage Effectiveness).
• Implement energy optimization strategies including variable speed drives, free cooling utilization, and equipment staging optimization.
• Develop and track key performance indicators (KPIs) for mechanical system efficiency and environmental impact.
• Support sustainability initiatives including water conservation, refrigerant management, and carbon footprint reduction.

Capacity Planning and Load Analysis

• Analyze cooling capacity utilization and forecast future requirements based on IT deployment trends.
• Develop capacity models accounting for equipment heat loads, airflow requirements, and infrastructure constraints.
• Identify stranded capacity and cooling optimization opportunities to maximize infrastructure utilization.
• Plan mechanical infrastructure upgrades to support increasing power densities and evolving cooling technologies.

Project Engineering and Implementation

• Lead mechanical engineering aspects of data center projects from conceptual design through commissioning and turnover.
• Coordinate with MEP contractors, equipment vendors, and cross-functional teams to ensure successful project delivery.
• Review shop drawings, submittals, equipment specifications, and O&M manuals for compliance with design intent.
• Conduct site inspections during construction phases and verify installation quality, code compliance, and performance testing.

Compliance and Documentation

• Ensure compliance with mechanical codes including IMC, ASHRAE standards (particularly ASHRAE TC 9.9 for data centers), and local building codes.
• Maintain accurate as-built drawings, equipment documentation, maintenance logs, and system performance records.
• Develop and update standard operating procedures (SOPs) for mechanical systems operation, maintenance, and emergency response.
• Coordinate with regulatory authorities for inspections, permits, environmental compliance, and refrigerant management reporting.

Water Treatment and Fluid Management

• Oversee water treatment programs for chilled water systems, cooling towers, and humidification systems.
• Monitor water chemistry parameters including pH, conductivity, and chemical treatment levels.
• Manage backflow prevention, water filtration, and makeup water systems.
• Coordinate with water treatment vendors and ensure compliance with Legionella prevention protocols.

Vendor and Contractor Management

• Manage relationships with HVAC equipment manufacturers, controls vendors, and maintenance service providers.
• Oversee service level agreements and ensure vendor performance meets operational uptime requirements.
• Coordinate with OEM representatives for equipment warranty claims, software updates, and technical support escalations.
• Evaluate emerging cooling technologies and equipment for potential implementation in data center infrastructure.

Change Management Requirements

• Change Request Handling: Datacenter engineers must initiate, document, and track all infrastructure changes through the formal change management process. This includes hardware installations, network modifications, configuration updates, and system upgrades.
• Change Advisory Board (CAB) Participation: Engineers are expected to participate in CAB meetings, presenting technical details of proposed changes and addressing questions from stakeholders. They must provide risk assessments and demonstrate alignment with business objectives and maintenance windows.
• Implementation and Documentation: Execute approved changes according to scheduled maintenance windows, following documented procedures precisely. Maintain detailed implementation logs, capture before-and-after configurations, and update asset management systems and configuration management databases (CMDB) to reflect current state.
• Post-Implementation Review: Complete post-change validation testing to confirm successful implementation and document outcomes. Report any deviations from expected results and ensure proper closure of change tickets with lessons learned documentation.

Incident Management Requirements

• Incident Detection and Response: Respond promptly to datacenter incidents including hardware failures, environmental alerts, power disruptions, cooling system issues, and network outages. Acknowledge incidents within defined SLA timeframes and begin initial triage immediately.
• Incident Classification and Prioritization: Assess incident severity based on business impact and urgency. Properly categorize incidents (hardware, network, environmental, security) and upscale critical issues according to established escalation matrices. Priority 1 incidents require immediate attention regardless of time of day.
• Root Cause Analysis: Conduct thorough investigation to identify root causes rather than addressing symptoms only. Document findings, contributing factors, and failure patterns to prevent recurrence. Collaborate with vendors and internal teams as needed for complex issues.
• Communication and Reporting: Maintain regular communication with stakeholders during incident resolution. Provide status updates at defined intervals, manage expectations regarding resolution timeframes, and ensure proper notification when incidents are resolved.
• Knowledge Management: Contribute to the knowledge base by documenting incident resolutions, creating troubleshooting guides, and sharing lessons learned. This builds organizational capability and reduces resolution time for future similar incidents.

Required Qualifications

Education Minimum Bachelor's degree in Mechanical Engineering required. Master's degree in Mechanical Engineering, HVAC systems, or related field preferred for senior positions.

Experience Minimum 5-7 years of mechanical engineering experience with at least 3 years specifically in data center or mission-critical facilities. Demonstrated experience with precision cooling systems, chilled water infrastructure, and thermal management in high-density computing environments. Proven track record managing mechanical systems in 24/7 operational environments with stringent uptime requirements. Experience with data center design standards including Uptime Institute Tier classifications, ASHRAE thermal guidelines, and TIA-942.

Technical Expertise Deep knowledge of data center cooling technologies including CRAC/CRAH units, in-row cooling, liquid cooling, and rear-door heat exchangers. Proficiency with mechanical design software including AutoCAD, Revit MEP, and computational fluid dynamics (CFD) tools such as 6SigmaRoom, Tileflow, or FloVENT. Strong understanding of psychrometrics, heat transfer principles, airflow dynamics, and thermodynamic cycles. Experience with BMS platforms such as Tridium Niagara, Johnson Controls Metasys, Schneider Electric EcoStruxure, or similar. Knowledge of chilled water system design, pumping configurations, and heat rejection equipment sizing and operation.

Licensure and Certifications Professional Engineer (PE) license strongly preferred. Certified Data Centre Professional (CDCP) or Certified Data Centre Specialist (CDCS) highly desirable. ASHRAE certifications such as BEMP (Building Energy Modeling Professional) or HFDP (High-Performance Design Professional) beneficial. Additional certifications such as CEM (Certified Energy Manager), LEED AP, or CFD analysis credentials advantageous.

Preferred Qualifications Experience with hyperscale, colocation, or enterprise data center environments supporting diverse client requirements. Knowledge of liquid cooling technologies including direct-to-chip, immersion cooling, and hybrid cooling architectures. Familiarity with modular data center solutions and prefabricated mechanical infrastructure. Experience with commissioning processes including functional performance testing and Cx agent coordination. Project management certification (PMP) or equivalent. Background in energy modeling.

Core Competencies Exceptional problem-solving abilities with capacity to diagnose complex thermal and mechanical issues rapidly in mission-critical environments. Strong analytical skills for system performance analysis, capacity modeling, and optimization initiatives. Excellent communication capabilities for technical documentation, client presentations, and cross-functional collaboration with electrical, IT, and facilities teams. Ability to make informed decisions quickly during cooling emergencies while maintaining safety and operational integrity. Leadership qualities for guiding technical teams, mentoring junior engineers, and driving continuous improvement initiatives. Data-driven approach to infrastructure management with focus on metrics, trending, and predictive analytics.

Working Conditions

Position requires on-site presence at data center facility with occasional remote work capability for analysis and documentation tasks. Must be available for 24/7 on-call rotation to respond to critical cooling incidents, equipment failures, or environmental alarms. Flexibility to work during planned maintenance windows including nights, weekends, and holidays. May require travel to multiple data center locations, vendor facilities, or industry conferences.

Physical Requirements

Ability to navigate data center environments including raised floor areas, mechanical rooms, ceiling spaces, and rooftop equipment platforms. Capability to wear appropriate PPE including hard hats, safety glasses, hearing protection, and arc flash protection when working near electrical systems. Climbing ladders and working at heights for rooftop equipment inspections and maintenance activities. Occasional lifting of equipment, tools, or materials up to 50 pounds. Ability to work in varying environmental conditions including hot mechanical rooms, cold outdoor areas, and temperature-controlled data halls.

Safety Requirements

Must maintain current knowledge of mechanical system safety standards, confined space entry protocols, and OSHA regulations. Adherence to lockout/tagout (LOTO) procedures, hot work permits, and permit-to-work systems when coordinating with contractors. Participation in regular safety training including fall protection, ladder safety, and refrigerant handling. Understanding of electrical safety requirements when working on equipment with electrical components. Commitment to fostering a culture of safety within operations teams and contractor workforce.

Location

On-site –Johor Bahru, Malaysia

About JLL

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.

At JLL, we give you the opportunity, knowledge and tools to own your success, because we value what makes each of us unique. We help our people thrive, grow meaningful careers and find a place where they belong. Together, we strive to be exceptional and shape a better world. For over 200 years, JLL (NYSE: JLL), a leading global commercial real estate and investment management company, has helped clients buy, build, occupy, manage and invest in a variety of commercial, industrial, hotel, residential and retail properties. A Fortune 500 company with operations in over 80 countries around the world, our employees bring the power of a global platform combined with local expertise.

Driven by our purpose to shape the future of real estate for a better world, we help our clients, people and communities SEE A BRIGHTER WAYSM.

JLL is the brand name, and a registered trademark, of Jones Lang LaSalle Incorporated. For further information, visit jll.com.