M365, Messaging, Collaboration & EUC Platform Engineer

HCLTech; Singapore; On-site; SGD 90,000 - 130,000; Full time

Job summary

HCLTech is seeking a Platform Engineer to deliver 24x7 operational support for Microsoft 365, Exchange, SharePoint, Teams, Purview, and related collaboration platforms. You will manage email services, governance, and automation, coordinating with Microsoft and other vendors as part of a global managed services team.

The role includes incident management, service health monitoring, and production readiness across SaaS and on-prem environments, with emphasis on security, access control, and

Qualifications

• Bachelor’s degree in Engineering, Computer Science, Information Systems, or related field.
• Microsoft 365 Administrator, Messaging Administrator, Teams Administrator, SharePoint Administrator, or related certification preferred.
• Experience with Exchange hybrid/coexistence, Microsoft Purview, Entra ID/App Proxy, Power Platform administration, and enterprise collaboration governance preferred.

Responsibilities

• Administer and support Exchange On-Premises and Exchange Online services, including mailbox, distribution list, shared/resource mailbox, permissions, retention-related requests, and mail-enabled objects.
• Provide 24x7 operational support with incident/problem/change management, monitoring service health, and reporting.
• Coordinate with Microsoft support and vendors for escalations, outages, and platform advisories.
• Maintain SOPs, runbooks, and operational knowledge articles.
• Support SaaS platforms including Google Workspace, Slack, Eptura, Dropbox/Box, and Notion, plus Power Platform environments.

Skills

PowerShell scripting

C#

Automation

Education

Bachelor’s degree in Engineering, Computer Science, Information Systems, or related field

Tools

ShareGate

AvePoint Cloud Governance

Power Platform

SharePoint

Microsoft 365 Admin tools

Cisco Email Security Appliance

Job description

The M365, Messaging, Collaboration & EUC Platform Engineer will provide 24x7 operational support across Microsoft 365, Exchange, SharePoint, Teams, Purview, Entra App Proxy, Google Workspace, Slack/Tencent Messaging, Eptura, Dropbox/Box, Notion, Power Platform, AvePoint Cloud Governance, ShareGate, Cisco Email Security Appliance, GFI Fax & SMS Gateway, and custom C#/PowerShell jobs. The role will support platform stability, user lifecycle, access and permissions, email and collaboration services, governance, service health monitoring, incident/problem/change management, vulnerability remediation coordination, vendor escalation, automation, reporting, and operational documentation.

Key Responsibilities

1. Messaging, Exchange & Email Security

• Administer and support Exchange On-Premises and Exchange Online services, including mailbox, distribution list, shared/resource mailbox, permissions, retention-related requests, and mail-enabled objects.
• Troubleshoot mail flow, delivery failures, Outlook/OWA connectivity, calendar, free/busy, autodiscover, mobile access, and message trace-related incidents.
• Support Cisco Email Security Appliance operations including whitelisting/blacklisting, mail flow investigation, spam/quarantine support, and security gateway escalations as per approved process.
• Support GFI Fax & SMS Gateway operations including user/request support, service monitoring, incident triage, and vendor escalation coordination.
• Coordinate with security, identity, network, and application teams for email security, authentication, routing, and policy-impacting issues.
• Provide operational support for Microsoft 365 Office Applications, Exchange Online, SharePoint Online, OneDrive for Business, Teams, Copilot, Viva, and Purview.
• Support user access, license assignment validation, service health monitoring, service advisories, tenant configuration support, and end-user collaboration issues.
• Troubleshoot issues related to Teams, OneDrive sync, SharePoint access, M365 application access, Copilot availability/access issues, and Viva module access where applicable.
• Support Purview-related operational activities such as DLP, retention, audit, and data governance coordination based on defined policies.
• Coordinate with Microsoft support for service outages, critical incidents, escalations, and platform advisories.
• Administer and support SharePoint On-Premises and SharePoint Online sites, site collections, libraries, lists, access requests, and permissions.
• Troubleshoot site availability, document library, permission inheritance, search, workflow, storage, and performance-related issues.
• Coordinate backup/restore, patching, vulnerability remediation, maintenance, and infrastructure-level dependencies with respective resolver groups.
• Support ShareGate activities for migration, reporting, assessment, and operational tasks as per approved change and project processes.
• Maintain SharePoint SOPs, configuration documentation, runbooks, and operational knowledge articles.

4. SaaS Collaboration & Productivity Platforms

• Administer and support Google Workspace, Slack/Tencent Messaging, Eptura, Dropbox/Box, and Notion in line with defined operational procedures.
• Support user provisioning/deprovisioning, group/channel/workspace access, folder/site/page permissions, external sharing controls, and service requests.
• Troubleshoot collaboration platform access, sync, sharing, authentication, notification, integration, and client-side issues.
• Coordinate with platform vendors/OEMs for L3 support, service incidents, platform defects, and escalations.
• Support usage reporting, license utilization, operational governance, and adoption reporting for in-scope collaboration platforms.
• Administer Power Platform environments, tenant settings, DLP policies, gateways, platform health, usage, and capacity monitoring.
• Support AvePoint Cloud Governance operations including service requests, governance workflows, access/governance support, and vendor coordination.
• Monitor and support Microsoft Entra App Proxy service availability, connector status, application access, and vulnerability remediation coordination.
• Maintain and support approved custom scripts/jobs developed in C# and PowerShell, including job monitoring, failure triage, minor enhancements, and documentation.
• Use PowerShell/C# scripting to improve reporting, operational automation, standard checks, and repetitive administrative tasks.

6. 24x7 Operations, ITSM & Service Continuity

• Provide 24x7 operational support through shift-based coverage, including on-call or rostered support where applicable.
• Monitor service health, platform alerts, batch/script jobs, ticket queues, service advisories, and operational dashboards during assigned shifts.
• Perform incident triage, troubleshooting, workaround implementation, escalation, root cause analysis inputs, and permanent-fix coordination.
• Handle service requests, incidents, changes, and problem tickets within agreed SLAs and escalation timelines using the ITSM process.
• Support major incidents, priority escalations, emergency changes, service restoration, and post-incident review inputs.
• Perform shift handover with clear ticket updates, pending actions, escalations, risks, and operational highlights.
• Maintain SOPs, runbooks, known error records, troubleshooting guides, and operational reporting.

Preferred Qualifications & Certifications

• Bachelor’s degree in Engineering, Computer Science, Information Systems, or related field.
• Microsoft 365 Administrator, Messaging Administrator, Teams Administrator, SharePoint Administrator, or related Microsoft certification preferred.
• Experience with Exchange hybrid/coexistence, Microsoft Purview, Entra ID/App Proxy, Power Platform administration, and enterprise collaboration governance preferred.
• Experience working in a global managed services or 24x7 enterprise operations environment.

Good-to-Have Skills

• Experience with migration tools and operational reporting using ShareGate and AvePoint Cloud Governance.
• Experience with service health monitoring, vulnerability coordination, platform patching, and security baseline alignment.
• Experience supporting regulated environments with DLP, retention, audit, and external sharing governance requirements.
• Experience coordinating with Microsoft, Slack, Dropbox/Box, Google, Notion, Eptura, Cisco, and other vendors for escalations and service-impacting incidents.
• Strong documentation, reporting, stakeholder communication, and cross-functional coordination skills.
• Stable 24x7 operational support across M365, messaging, collaboration, SaaS, governance, and automation platforms.
• Timely incident resolution, service request fulfillment, escalation, and shift handover.
• Accurate monitoring and reporting for service health, platform availability, ticket trends, usage, licenses, and operational risks.
• Reduced recurring incidents through RCA inputs, known error documentation, automation, and process improvement recommendations.
• Updated SOPs, runbooks, configuration documents, troubleshooting guides, and knowledge articles.
• Effective coordination across security, identity, network, infrastructure, application, and vendor/OEM teams.
• Compliance with change management, access governance, vulnerability remediation, and service continuity requirements.