MOHAMMAD SHAMIM KHAN
Senior HVAC & Chiller Specialist Technical Mastery in Thermal Systems
Shamim.majalg4s@gmail.Com, 23943, Jeddah, Saudi Arabia.About
Highly experienced HVAC and Chiller Technician with over 20 years of expertise in the operation, maintenance, and repair of diverse commercial and industrial refrigeration and air conditioning systems. Proven ability to troubleshoot complex issues, optimize system performance, and ensure efficient operation of reciprocating, centrifugal, and screw chillers, alongside various AC plants and heating equipment. Seeking a challenging role to leverage extensive technical skills and contribute to operational excellence in a reputable organization.
Work
Jeddah, Western, Saudi Arabia
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Summary
Responsible for end-to-end supervision of daily data center operations, ensuring optimal system performance, regulatory compliance, and continuous uptime. Monitor critical infrastructure components—including electrical, mechanical, and life safety systems—from upstream to downstream, such as fire detection and suppression, firefighting systems, UPSs, PDUs, transformers, ATSs, chillers, chilled water circuits, CRAH units, AHUs, and fresh air systems.
Highlights
Demonstrate hands-on expertise in troubleshooting chillers (centrifugal, reciprocating, screw), chiller pumps, CRAC units, AHUs, and Vertiv EFC systems for fault isolation and rapid resolution.
Monitor infrastructure health and respond promptly to critical and minor incidents to minimize downtime
Schedule and oversee preventive and corrective maintenance activities for all MEP systems
Manage vendors and third-party service providers for efficient equipment repairs and service delivery
Ensure functionality of all redundancy systems and backups across operational infrastructure
Maintain compliance with safety, security, and environmental regulations within data center operation
Oversee all technical components from upstream to downstream—including fire detection/suppression systems, UPSs, PDUs, busways, ATSs, transformers, chillers, CRAH, AHU, and fresh air system
Conduct daily facility walk-rounds and system monitoring to identify and resolve alarms via control panels and workstation interfaces.
Dubai, Dubai, United Arab Emirates
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Summary
MEP Team Leader – Data Center Operations Currently overseeing comprehensive maintenance and operational efficiency of critical HVAC infrastructure across Tier-certified data center environments. Responsible for the supervision and performance optimization of advanced thermal systems, including Trane and York chillers, CRAC units, Fan Wall Units (FWU), AHUs, and supplementary mechanical cooling assets. Lead a multidisciplinary team to ensure seamless functionality, uptime compliance, and precision climate control across high-density commercial facilities. Collaborate with engineering teams to execute preventive and corrective maintenance programs, drive energy efficiency initiatives, and uphold safety and operational standards.
Highlights
Conduct routine and corrective maintenance across diverse HVAC systems, including commercial freeze chillers, heating units, and various AC configurations, to sustain optimal performance in critical environments.
Expertly diagnose and resolve mechanical and electrical faults in large-scale chillers such as York 200TR reciprocating water-cooled, Trane 400TR centrifugal, and Denham Bush 200TR screw units, minimizing downtime and enhancing reliability
Execute precision repairs and component replacements for Carrier split-type systems (2–5 tons) and LG 10–20TR reciprocating package units, ensuring extended equipment lifecycle and operational stability.
Implement structured preventive maintenance programs, driving energy efficiency and reducing unplanned outages across mission-critical building infrastructure
Riyadh, Central, Saudi Arabia
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Summary
Provided expert HVAC technical services, specializing in the maintenance, repair, and installation of various commercial and industrial air conditioning and refrigeration systems.
Highlights
Managed comprehensive maintenance programs for diverse AC plants and chiller systems, ensuring continuous operation and compliance with industry standards.
Successfully identified and resolved complex faults in large-scale commercial chillers, including reciprocating, screw, and centrifugal types, minimizing operational disruptions.
Conducted regular inspections and performance tests on heating and cooling equipment, proactively addressing potential issues and improving system efficiency.
Trained junior technicians on best practices for HVAC system diagnosis and repair, enhancing team capabilities and service quality.
Delhi, NCR, India
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Summary
Specialized in the maintenance and repair of all types of York chillers, ensuring optimal performance and reliability for commercial and industrial clients.
Highlights
Expertly maintained and repaired a full range of York chillers, including reciprocating, centrifugal, and screw types, ensuring system longevity and efficiency.
Performed detailed diagnostics to pinpoint issues in complex chiller systems, leading to efficient and effective repair solutions.
Executed routine preventive maintenance on chiller units, significantly extending operational life and reducing unexpected breakdowns.
Collaborated with engineering teams to implement system upgrades and modifications, improving overall cooling capacity and energy efficiency.
Patila, Punjab, India
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Summary
Maintained all operational equipment and systems within a four-star hotel environment, ensuring guest comfort and facility functionality.
Highlights
Managed the upkeep and repair of hotel HVAC systems, including split and package AC units, ensuring consistent comfort for guests.
Addressed a variety of maintenance issues across the facility, from plumbing and electrical to general equipment repair, ensuring rapid resolution.
Conducted daily inspections of critical hotel infrastructure, proactively identifying and resolving potential operational disruptions.
Responded promptly to maintenance requests, maintaining high standards of service quality and guest satisfaction.
Patila, Punjab, India
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Summary
Contributed to the operational continuity of a large-scale manufacturing plant by maintaining critical machinery and utility systems.
Highlights
Performed routine and emergency maintenance on industrial refrigeration and air conditioning units crucial for production processes.
Troubleshot and repaired mechanical and electrical components of plant machinery, minimizing downtime and supporting continuous operations.
Assisted in the installation and commissioning of new equipment, ensuring proper integration and functionality.
Adhered to strict safety protocols and maintenance standards within a fast-paced manufacturing environment.
New Delhi, Delhi, India
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Summary
Gained foundational experience in the repair and service of air-cooled refrigeration systems at a specialized workshop.
Highlights
Assisted senior technicians in the diagnosis and repair of various air-cooled AC units and refrigeration systems.
Performed hands-on component replacement and system testing to ensure proper functionality after repairs.
Learned best practices for refrigerant handling, system charging, and leak detection.
Contributed to the efficient turnaround of service requests, supporting workshop productivity.
Languages
Arabic
Proficient
Urdu
Fluent
Hindi
Native
English
Proficient