Senior Exchange & Identity Systems Engineer

Kerry Consulting; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

A leading financial services employer in Singapore is seeking a Senior System Administrator to join its IT team. The role is hands-on, focusing on Microsoft Exchange (on‑premises and Online), Microsoft 365, Azure, Entra ID, and related identity and messaging platforms across the enterprise.

You will own the administration, migrations, and hybrid coexistence, support IAM and Workplace teams, patching, security, and audit readiness, and use PowerShell to automate routine tasks.

Qualifications

• Bachelor's degree in IT, Computer Engineering or related field with 5+ years of hands-on sysadmin experience.
• Hands-on experience administering on-prem Exchange and migrations to Exchange Online/Microsoft 365.
• Experience with Entra ID, Azure, AD, GPO, DNS/DHCP and PowerShell scripting.

Responsibilities

• Administer on-premises Exchange Server and Exchange Online, including migrations and hybrid coexistence.
• Support Entra ID, SSO, OIDC, OAuth 2.0, and SAML integrations with IAM and Workplace teams.
• Manage Windows Server, Active Directory, DNS/DHCP, AD Connect and automate tasks with PowerShell.
• Contribute to patching, security, compliance and audit readiness.

Skills

Exchange administration

Migration planning

PowerShell automation

Identity & federation technologies

Education

Bachelor's degree in Information Technology or Computer Engineering

Tools

Microsoft Exchange Server

Exchange Online

Microsoft 365

Entra ID

Azure

Windows Server

Active Directory

Group Policy

DNS/DHCP

AD Connect

PowerShell

SharePoint

Teams

OIDC

OAuth 2.0

SAML

Conditional Access

MFA

RBAC/PIM

Job description

A leading financial services employer in Singapore is seeking a Senior System Administrator to join its IT team. The role is hands-on, focusing on Microsoft Exchange (on‑premises and Online), Microsoft 365, Azure, Entra ID, and related identity and messaging platforms across the enterprise.

You will own the administration, migrations, and hybrid coexistence, support IAM and Workplace teams, patching, security, and audit readiness, and use PowerShell to automate routine tasks.