Who We ArePrinceton Digital Group (PDG) is a leading developer and operator of AI and cloud hyperscale data centers in Asia. Headquartered in Singapore, PDG has a presence across high-growth markets in the region including Singapore, Japan, India, Indonesia, China, Korea and Malaysia. PDG is backed by some of the world’s most reputed blue-chip investors - Warburg Pincus, a leading global private equity firm with a successful history of creating world-class technology, media, and telecommunications (TMT) and real estate platforms; Ontario Teachers' Pension Plan (OTPP), Canada's largest single profession pension plan; Mubadala Investment Company, a sovereign investor that manages a diverse global portfolio for the Government of Abu Dhabi and Stonepeak, a leading alternative investment firm specializing in infrastructure and real assets globally.Why Join PDG?Impact at Scale: Be part of a company that’s enabling digital transformation of economies.Career Growth Without Borders: With operations across Asia Pacific and a fast-growing footprint, your next opportunity could be anywhere.Culture That Empowers: We foster a collaborative, inclusive environment where every voice is heard and every contribution matters.Commitment to Excellence: From governance to workplace safety, we hold ourselves to the highest standards because our people deserve nothing less.PDG empowers individuals in every role to grow, lead, and leave a lasting impact.Join us to build the digital future of Asia Pacific.For more information, visit or follow us on LinkedIn.We Are Looking ForWe are seeking a highly experienced Senior Mechanical Engineer to lead the design, operation, and optimization of mechanical infrastructure for mission-critical data centers. The role focuses on high-availability cooling systems, energy efficiency, reliability, and compliance with global data centre standards. The ideal candidate has deep hands-on experience with large-scale data centres and a proven track record of delivering resilient, efficient mechanical solutions.Job Responsibilities:Design & EngineeringLead the design, review, and approval of mechanical systems including:Chilled water systemsAir-cooled and water-cooled chillersCRAH/CRAC unitsCooling towersPumps, piping, and heat exchangersHSD systemLC/CDU systemDevelop and review concept, schematic, and detailed designs for new and existing data centresPerform load calculations, airflow modelling, and redundancy analysis (N, N+1, 2N)Support retrofit and expansion projects with minimal downtimeOperations & ReliabilityEnsure 24/7 availability and reliability of mechanical systems in live data centre environmentsDevelop and review SOPs, MOPs, and EOPsLead root cause analysis for mechanical failures and implement corrective actionsOversee commissioning, testing, and integrated systems testing (IST)Energy Efficiency & SustainabilityDrive improvements in PUE, WUE, and overall energy efficiencyImplement best practices for free cooling, economization, and heat recoverySupport sustainability initiatives and carbon reduction goalsVendor & Project ManagementManage consultants, contractors, and OEMsReview technical submittals, shop drawings, and method statementsSupport budgeting, cost estimation, and value engineeringEnsure projects are delivered on time, within budget, and to specificationCompliance & StandardsEnsure compliance with applicable standards and codes such as:ASHRAE (TC 9.9)NFPAISOLocal building and safety codesParticipate in audits, inspections, and regulatory reviewsLeadership & CollaborationProvide technical leadership and mentorship to junior engineersCollaborate with electrical, IT, facilities, and operations teamsAct as a subject matter expert for mechanical systems across the data center portfolioRequirements:Bachelor’s degree in mechanical engineering (Master’s preferred)10+ years of experience in data centre or mission-critical facilitiesStrong expertise in cooling systems for high-density data centresHands-on experience with commissioning and live site operationsProficiency in engineering tools (AutoCAD, Revit, load calculation software)Strong problem-solving, communication, and documentation skillsKey CompetenciesHigh-availability system designRisk assessment and mitigationEnergy optimizationStakeholder and vendor managementAttention to detail in mission-critical environmentsOther Added AdvantageProfessional Engineer (PE) or equivalent certificationExperience with hyperscale or colocation data centresKnowledge of CFD analysisExperience in global or multi-site data centre environments
Job Title
Mechanical Project Manager