Yik Tatt Ong
IT Manager, APAC · Service Delivery & End User Computing · Multi-Country IT Operations
ITIL 4 Foundation · Microsoft Certified: Azure Administrator Associate (AZ-104) · AWS Certified Solutions Architect – Associate · AWS Certified CloudOps Engineer – Associate · AWS Certified Cloud Practitioner
I run IT services for 200 users across Singapore, Japan and South Korea — vendor-delivered and ITIL-aligned, and I still do the hands-on work myself.
12+ years in enterprise IT across Singapore and the APAC region — a 200-user estate and a S$100K regional budget across Singapore, Japan and South Korea, with vendor, SLA and service-performance accountability throughout.
Open to Service Delivery Manager, IT Service Manager, End User Computing Manager and IT Manager roles in Singapore. Available for interviews immediately; available to start January 2027.
About me
I've spent 12+ years running and supporting enterprise IT — a S$2M data centre migration into Tier-3 co-location, and day-to-day service delivery for a 200-user estate across Singapore, Japan and South Korea.
Most of it has been service management rather than tooling — coordinating major incidents, assessing change, and running monthly service reviews with our vendor service desk. At McDonald's that covered 135 outlets and a 1,000-terminal POS estate.
I'm comfortable on both sides: holding vendors to their SLAs and doing the technical work myself. I passed Microsoft's Azure Administrator Associate (AZ-104) in October 2026, and added three AWS certifications earlier this year alongside the role.
Off the clock: cameras, hi-fi audio, and tinkering with the homelab.
- LocationSingapore
- EducationTemasek Polytechnic
- EmploymentWargaming Asia
- CertificationsITIL 4 Foundation · Azure Administrator (AZ-104) · AWS SAA · CloudOps · Cloud Practitioner
Work
Wargaming Asia
IT Manager, APAC
May 2025 - December 2026- Own regional IT operations across Singapore, Japan and South Korea as the sole internal IT resource in the Singapore regional office — S$100K annual operating budget, vendor performance and SLA compliance — and direct vendor-supplied engineers in Japan and South Korea against response and resolution targets
- Own regional incident escalation across three markets, coordinating vendor engineers and holding communication with business stakeholders through to service restoration
- Apply problem management to recurring incident patterns — introducing proactive endpoint monitoring and redesigning service desk workflows to cut recurring incident escalations by 20%
- Govern change for regional IT initiatives across Singapore, Japan and South Korea — validating readiness, piloting locally and sequencing deployments to avoid business disruption
- Continue to own Singapore end-user computing hands-on — Active Directory and Group Policy administration, unified communications including Microsoft Teams Rooms, and patch compliance
- Remain technically hands-on at manager level — troubleshooting Windows Server and VMware-hosted workloads and resolving systemic issues through structured root-cause analysis
IT Specialist, APAC
February 2023 - May 2025- Administered endpoint compliance and configuration baselines for a mixed Windows and macOS fleet using Microsoft Intune, Microsoft Entra ID, Group Policy and Conditional Access
- Built PowerShell automation to validate Secure Boot certificates and deploy language packs, cutting manual device setup time by 20%
- Owned end-to-end identity access lifecycles — user provisioning, group management, least-privilege access and offboarding
Operations Manager
- Restructured an 8-person support team into two specialised units — Project Delivery and Technical Support — separating deployment work from reactive maintenance and cutting client deployment time by 20%
- Standardised end-to-end client onboarding and transferred ownership to autonomous team leads, lifting client onboarding capacity by 40%
- Designed and delivered technical training that built independent troubleshooting capability across the team, reducing reliance on escalation
- Partnered with Product Engineering on recurring defect trends from live deployments, feeding operating issues into product release planning
IT Infrastructure Lead
- Led data centre migration as part of a S$2M digital transformation, moving core enterprise applications — including Microsoft Dynamics AX ERP and gaming systems — into Tier-3 co-location facilities with minimal production downtime
- Directed the response to a major incident in which a Tier-3 data centre SAN failure took production workloads offline — coordinating recovery across vendors, holding stakeholder communication and driving restoration of service
- Held change approval authority for infrastructure changes — assessing risk, impact and readiness, and scheduling implementation windows to avoid service disruption
- Administered Active Directory and Group Policy for the corporate environment, and managed WSUS patch deployment across the server and endpoint estate alongside the Ivanti endpoint management estate
- Administered identity and access management across Microsoft Entra ID and Microsoft 365 — least-privilege access control, user provisioning and group management
- Governed corporate IT hardware leasing lifecycles, asset discovery and deployment schedules across an enterprise fleet of 300+ connected devices within a S$100K dedicated budget line
- Served as final escalation owner for systemic infrastructure issues, supervising outsourced desktop support vendors against agreed service levels
IT Consultant II
- Managed outsourced IT vendors against SLA and availability commitments across 135 restaurant outlets — 500+ self-order kiosks, 1,000 POS terminals and 2,000 kitchen display systems
- Ran monthly service reviews with the outsourced vendor service desk and reported service desk performance to management — holding vendors to agreed SLAs and translating incident and request trends into prioritised service improvements
- Reviewed service tickets to identify recurring causes and applied permanent fixes to stop issues recurring rather than closing them repeatedly
- Engaged 135 restaurant outlets monthly to surface technology pain points before they escalated, feeding findings into the service improvement backlog
- Administered Active Directory and Group Policy across the corporate estate, controlling user access and enforcing device configuration standards
- Led hardware staging, configuration and readiness for the nationwide rollout of the McDonald's App across the full outlet estate
IT Field Technician
- Wrote a Batch automation script during the WannaCry ransomware outbreak — scanning 60+ retail sites for exposure, collating results to a central server for triage, and prioritising patching of affected devices
- Logged, tracked and resolved incidents and service requests in ServiceNow, building the ITIL-aligned service management discipline applied in later roles
- Delivered on-site hardware deployment and maintenance for point-of-sale and kitchen display systems across new client site openings, including McDonald's Singapore outlets
- Built a diagnostics script (Batch) to scan client endpoints and extract hardware models, IP addresses and serial numbers — replacing manual asset tracking during rollouts
Certification
ITIL 4 Foundation
Azure Administrator Associate (AZ-104)
AWS Certified CloudOps Engineer - Associate
AWS Certified Solutions Architect - Associate
AWS Certified Cloud Practitioner
Skills
Education
Diploma in Infocomm and Digital Media
Check out some of my work
Vulnerability triage automation — WannaCry response
Wrote a Batch automation script during the WannaCry ransomware outbreak that scanned 60+ retail sites for exposure, collated results to a central server for triage, and prioritised patching of affected devices. The triage-and-prioritise pattern is the same one I applied years later to service desk workflows and proactive endpoint monitoring.
Batch · Endpoint Patching · Risk-Based Prioritisation · Incident Response
Endpoint asset discovery automation
Built a diagnostics script (Batch) to scan client endpoints and extract hardware models, IP addresses and serial numbers — replacing manual asset tracking during rollouts, and forming the basis for the device-lifecycle and asset-management discipline I have run since.
Batch · Asset Discovery · Device Lifecycle Management
Get in touch.
- ytong95@gmail.com
- Location
- Singapore
- Github
- ongyiktatt
- ongyiktatt