Sr Subject Matter Expert (Support&Ops)

Job description

We are looking for an experienced Microsoft 365 & Exchange Administrator to manage and support enterprise messaging and collaboration platforms. The role involves administration of Microsoft 365, Exchange Online, Exchange On-Premises, Active Directory, Intune, and Microsoft Defender for Office 365 , ensuring high availability, security, and compliance. The candidate will be responsible for Exchange deployments, migrations, patch management, email security (SPF, DKIM, DMARC), PowerShell automation, incident resolution, DR activities, and ITIL-based support processes . Strong troubleshooting skills, experience handling critical escalations, and the ability to lead teams while meeting SLA commitments are essential. Key Responsibilities Responsibilities: Must be able to provide complete administration of the Microsoft 365 environment and its capabilities. Should have experience in leading the team to resolve critical and problem cases on time by following the approved processes. Testing, implementation, and deployment of Exchange Online. Query Exchange environment using the Office 365 Command online tool. Implement and support security policies, such as data retention. Manage problem resolution to a satisfactory completion by keeping abreast of assigned tickets and following the proper escalation processes via ticketing system. Review, test, and make recommendations for standard email practices. Experience with supporting anti-spam filtering, logging and email tracking and transport rules. Primary On-site support for Microsoft 365 issues. Support Single Sign-On using Active Directory Federation Services with Multi Factor Authentication. Perform scripting administration tasks and reporting using PowerShell. Develop scripts for automating processes within the environment. Help ensure team performance meets or exceeds defined Service Level Agreements. Perform migrations and deployments related to the building, upgrade, and maintenance of MS Exchange. Monthly audits on the Active Directory environment to reconcile users. Manage user's mobile devices through our Mobile Device Management (MDM) solutions (MS Intune). Troubleshoot active sync issues with mobile devices. Create user guides and instructional documents for end-users. In charge of onboarding/offboarding users. Should have hands on experience on DR process. Troubleshoot issues related to Microsoft defender for office 365. Should have hands on experience working with ITIL process. Exchange Patch management- Deploy the security patches on Exchange production environment Design and implementation skills on exchange on-premises infrastructure. Should be expertise on handling SPF, DKIM and DMARC related to changes. Should take lead to address escalated, ageing and complaint cases with utmost customer satisfaction. Skill Requirements Responsibilities: Must be able to provide complete administration of the Microsoft 365 environment and its capabilities. Should have experience in leading the team to resolve critical and problem cases on time by following the approved processes. Testing, implementation, and deployment of Exchange Online. Query Exchange environment using the Office 365 Command online tool. Implement and support security policies, such as data retention. Manage problem resolution to a satisfactory completion by keeping abreast of assigned tickets and following the proper escalation processes via ticketing system. Review, test, and make recommendations for standard email practices. Experience with supporting anti-spam filtering, logging and email tracking and transport rules. Primary On-site support for Microsoft 365 issues. Support Single Sign-On using Active Directory Federation Services with Multi Factor Authentication. Perform scripting administration tasks and reporting using PowerShell. Develop scripts for automating processes within the environment. Help ensure team performance meets or exceeds defined Service Level Agreements. Perform migrations and deployments related to the building, upgrade, and maintenance of MS Exchange. Monthly audits on the Active Directory environment to reconcile users. Manage user's mobile devices through our Mobile Device Management (MDM) solutions (MS Intune). Troubleshoot active sync issues with mobile devices. Create user guides and instructional documents for end-users. In charge of onboarding/offboarding users. Should have hands on experience on DR process. Troubleshoot issues related to Microsoft defender for office 365. Should have hands on experience working with ITIL process. Exchange Patch management- Deploy the security patches on Exchange production environment Design and implementation skills on exchange on-premises infrastructure. Should be expertise on handling SPF, DKIM and DMARC related to changes. Should take lead to address escalated, ageing and complaint cases with utmost customer satisfaction. Other Requirements Responsibilities: Must be able to provide complete administration of the Microsoft 365 environment and its capabilities. Should have experience in leading the team to resolve critical and problem cases on time by following the approved processes. Testing, implementation, and deployment of Exchange Online. Query Exchange environment using the Office 365 Command online tool. Implement and support security policies, such as data retention. Manage problem resolution to a satisfactory completion by keeping abreast of assigned tickets and following the proper escalation processes via ticketing system. Review, test, and make recommendations for standard email practices. Experience with supporting anti-spam filtering, logging and email tracking and transport rules. Primary On-site support for Microsoft 365 issues. Support Single Sign-On using Active Directory Federation Services with Multi Factor Authentication. Perform scripting administration tasks and reporting using PowerShell. Develop scripts for automating processes within the environment. Help ensure team performance meets or exceeds defined Service Level Agreements. Perform migrations and deployments related to the building, upgrade, and maintenance of MS Exchange. Monthly audits on the Active Directory environment to reconcile users. Manage user's mobile devices through our Mobile Device Management (MDM) solutions (MS Intune). Troubleshoot active sync issues with mobile devices. Create user guides and instructional documents for end-users. In charge of onboarding/offboarding users. Should have hands on experience on DR process. Troubleshoot issues related to Microsoft defender for office 365. Should have hands on experience working with ITIL process. Exchange Patch management- Deploy the security patches on Exchange production environment Design and implementation skills on exchange on-premises infrastructure. Should be expertise on handling SPF, DKIM and DMARC related to changes. Should take lead to address escalated, ageing and complaint cases with utmost customer satisfaction. Apply now Information at a Glance Why HCLTech? At HCLTech, you'll supercharge your potential. You'll find your career. And you'll find your spark. All at a place that knows that helping its customers stay on top starts by putting its people first. HCLTech is a global technology company, home to more than 223,000 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of 12 months ending June 2026 totaled $14.8 billion. Disclaimer Privacy Statement Terms of use Sitemap Raise a Grievance We use cookies on our site. Please read more about cookies policy here. Opens in a new tab. Opens in a new tab. Opens in a new tab. Opens in a