Mechanical Engineer

Jones Lang LaSalle Incorporated; Johor Bahru; On-site; MYR 120,000 - 180,000; Full time

Job summary

Jones Lang LaSalle Incorporated in Malaysia seeks a Data Center Mechanical Engineer to implement, maintain, and optimize mechanical systems and critical cooling infrastructure in mission-critical data center environments. You will ensure reliable thermal management, uptime, and compliance with industry standards.

The role involves designing and reviewing HVAC and cooling setups, performing capacity planning, and coordinating with vendors to support IT infrastructure density growth while

Responsibilities

• Critical Cooling Systems: develop drawings, schedules, airflow diagrams and piping layouts; identify SPOFs to meet Uptime Institute certification requirements.
• HVAC and Precision Cooling Management: manage CRAC/CRAH units, in-row cooling, rear-door heat exchangers; oversee chilled water systems.

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. Each change requires comprehensive documentation detailing the scope, impact assessment, implementation plan, rollback procedures, and testing validation. 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 elevate 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. Complete detailed incident reports documenting timeline, actions taken, root cause, and preventive measures. 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