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The Associate Manager, Data Centre Operations supports the day-to-day operational management of Singtel's high-density data centre facilities hosting the GPU-as-a-Service (GPUaaS) platform.

Working closely with the GPUaaS IT Operations team, the role ensures infrastructure readiness, operational reliability, and service availability. It also supports the operation and maintenance of mission-critical mechanical, electrical, and cooling systems, including advanced liquid cooling technologies, to meet the power and thermal demands of AI and GPU-based workloads.

Responsibilities

Support the DC Operations Manager in maintaining 24/7 operational readiness of the data centre environment to ensure maximum uptime, service reliability, and compliance with internal and external service level agreements (SLAs).
Collaborate with GPUaaS IT Operations teams to coordinate the deployment, onboarding, relocation, and decommissioning of GPU and IT equipment.
Perform electrical load balancing assessments, failover analysis, and support air-cooled and liquid-cooled infrastructure operations.
Support the deployment, operation, and maintenance of liquid cooling infrastructure, including cooling distribution units (CDUs), heat exchangers, piping networks, leak detection systems, and associated equipment.
Conduct routine operational and maintenance activities such as pressure testing, coolant quality monitoring, filter replacement, and leak management.
Monitor system performance indicators, including thermal efficiency, flow rates, leak detection systems, and overall cooling effectiveness.
Ensure compliance with applicable regulatory requirements, industry standards, workplace safety regulations, environmental requirements, and operational procedures.
Identify operational risks related to leaks, condensation, corrosion, equipment failures, and environmental conditions, and implement appropriate mitigation measures.
Manage and oversee preventive and corrective maintenance programmes for mechanical and electrical systems, including CDUs, CRAUs, FCUs, pumps, valves, fire protection systems, and associated infrastructure.
Plan and support data centre infrastructure projects, including upgrades, retrofits, capacity expansion, and system enhancements, ensuring delivery within agreed scope, schedule, and budget.
Conduct operational risk assessments, develop failure scenarios, and maintain contingency and emergency response plans for critical infrastructure events.
Provide technical guidance and operational support to DC Operations teams in the monitoring, operation, and troubleshooting of mechanical and electrical systems, with emphasis on liquid cooling technologies.
Support incident management activities, root cause analysis (RCA), corrective actions, and continuous improvement initiatives.
Monitor and report key performance indicators (KPIs) related to infrastructure reliability, availability, energy efficiency, and utilisation of power, cooling, and rack capacity.
Drive initiatives to improve cooling efficiency, optimise energy consumption, and support sustainability objectives.
Manage vendor and contractor activities, ensuring compliance with SLAs, safety requirements, site access controls, and permit-to-work procedures.
Support internal and external audits by maintaining accurate documentation, records, and evidence of compliance.

Requirements

Diploma or higher qualification in Mechanical Engineering, Electrical Engineering, HVAC Engineering, or a related technical discipline, or equivalent relevant experience.
At least 6 years of relevant experience in HVAC operations and maintenance within mission-critical environments such as data centres, industrial facilities, or similar high-availability operations.
Experience operating or supporting high-density data centre environments; exposure to liquid cooling technologies will be advantageous.
Strong understanding of HVAC system design principles, operational performance optimisation, and energy efficiency strategies.
Familiarity with industry standards, regulatory requirements, and best practices relating to HVAC systems, building infrastructure, and data centre operations.
Experience with Building Management Systems (BMS), Energy Management Systems (EMS), and related monitoring and control platforms.
Demonstrated experience managing maintenance programmes, vendor relationships, and infrastructure projects.
Strong analytical and problem-solving skills, with the ability to investigate and resolve complex operational issues.
Effective interpersonal and communication skills, with the ability to collaborate across multiple teams and stakeholders.
Ability to manage competing priorities within a dynamic, mission-critical operational environment.
Familiarity with Workplace Safety and Health (WSH) regulations, compliance requirements, and safe work practices.

Rewards that Go Beyond

Full suite of health and wellness benefits
Ongoing training and development programs
Internal mobility opportunities

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Associate Manager, Mechanical (Data Centre)