#NEW#Senior Exchange Engineer - Contract

AMBITION GROUP SINGAPORE PTE. LTD.; Singapore; Hybrid; SGD 89,000 - 156,000; Full time

Job summary

AMBITION GROUP SINGAPORE PTE. LTD. is recruiting a Senior Exchange Engineer for our Exchange Operations team in Singapore.

The role covers on-premises Exchange and Exchange Online within Microsoft 365 in a hybrid setup. Responsibilities include high-availability messaging, mail flow, DAGs, migrations, and global collaboration across infrastructure teams. The ideal candidate has 5+ years managing Exchange environments, strong PowerShell skills, and experience with automation.

Qualifications

• Minimum 5 years of hands-on experience supporting Microsoft Exchange Server in a large enterprise.
• Minimum 2 years of experience administering Exchange Online within Microsoft 365.
• Strong experience with Exchange Hybrid configurations, SMTP routing, connectors, certificates, DAGs, and mailbox migrations.

Responsibilities

• Administer, maintain, and support Microsoft Exchange Server and Exchange Online environments.
• Manage Exchange Hybrid configurations, mail flow, SMTP routing, connectors, certificates, DAGs, and mailbox migrations.
• Develop and maintain automation and reporting solutions using PowerShell and Microsoft Graph API.
• Participate in incident, problem, and change management processes; provide production support.

Skills

Exchange Server

Exchange Online

PowerShell

Graph API

Automation

ITIL

Communication

Education

Bachelor's degree in IT/CS

Tools

Remedy ITSM

Splunk

Azure Monitor

Power BI

Job description

Senior Exchange Engineers - Exchange Operation

Employment Type: 12-Month Contract (Hybrid)

Industry: Banking / Financial Services

Location: Singapore

Job Description

We are seeking an experienced Senior Exchange Engineer to join the Exchange Operations team of a leading global financial institution. The successful candidate will be responsible for supporting and maintaining a large-scale Microsoft Exchange environment, covering both on-premises infrastructure and Exchange Online within Microsoft 365. This role requires strong hands-on technical expertise, independent problem-solving skills, and experience supporting business-critical messaging infrastructure in a complex enterprise environment.

Key Responsibilities

• Administer, maintain, and support Microsoft Exchange Server and Exchange Online environments.
• Manage Exchange Hybrid configurations, mail flow, SMTP routing, connectors, certificates, Database Availability Groups (DAGs), and mailbox migrations.
• Investigate and resolve complex messaging infrastructure incidents, performance issues, and service disruptions.
• Perform system maintenance, infrastructure changes, and upgrades in accordance with established change-management procedures.
• Develop and maintain operational automation and reporting solutions using PowerShell and Microsoft Graph API.
• Support Microsoft 365 integration with enterprise applications, identity services, and other business systems.
• Participate in incident, problem, and change management processes, including major incident resolution.
• Maintain technical documentation, operational procedures, and infrastructure standards.
• Collaborate with global infrastructure, application, security, and business teams to ensure service availability and operational efficiency.
• Participate in on-call rotations and production support activities as required.
• Identify opportunities for process improvement, automation, and operational efficiency.

Required Skills and Experience

• Minimum 5 years of hands-on experience supporting Microsoft Exchange Server (2013, 2016, 2019 or later) in a large enterprise environment.
• Minimum 2 years of experience administering and supporting Exchange Online within Microsoft 365.
• Strong experience with Exchange Hybrid environments, SMTP, mail routing, connectors, certificates, DAGs, and mailbox migrations.
• Experience with Microsoft 365 administration, identity integration, and cloud-based messaging technologies.
• Hands-on experience with Microsoft Graph API for automation, reporting, or operational management.
• Knowledge of PowerShell scripting and enterprise infrastructure automation.
• Experience with incident, problem, and change management processes, preferably within an ITIL-based environment.
• Familiarity with enterprise ticketing platforms such as Remedy.
• Strong analytical, troubleshooting, and problem-solving capabilities.
• Ability to work independently, manage technical issues, and coordinate with cross-functional teams.
• Good written and verbal communication skills.
• Willingness to participate in on-call support and production incident management.

Preferred Qualifications

• Experience with Microsoft Entra ID (Azure AD), Microsoft Teams, SharePoint Online, OneDrive, and Microsoft Defender.
• Knowledge of Azure Automation, Power Automate, Logic Apps, or other automation technologies.
• Familiarity with Microsoft Purview, retention policies, eDiscovery, and regulatory compliance requirements.
• Experience with enterprise monitoring and reporting tools such as Splunk, Azure Monitor, or Power BI.
• Exposure to Azure infrastructure and cloud-native services.
• Experience supporting enterprise messaging migrations, infrastructure modernization, or transformation projects.
• Previous experience in banking, financial services, or large-scale enterprise technology operations.
• Bachelor's degree in Information Technology, Computer Science, or a related discipline, or equivalent practical experience.

Contact Information

Business Registration Number: 200611680D | License Number: 10C5117 | EA Registration Number: R1768258