Guna Sekaran Premkumar
Solution Architect | Migration, Audit & Integration Expert | Driving Digital Workspace Transformation | Exchange • SharePoint • Teams • OneDrive • Purview • Azure • Copilot | RFI/RFP Solution Strategist
- Role
- Manager Consulting Expert at CGI
- Location
- Chennai, TN, IN
- LinkedIn followers
- 500 followers
About Guna Sekaran Premkumar
IT Specialist with over 19+ years of progressive experience in Microsoft technologies, with a core focus on Messaging, Collaboration, and Digital Workspace transformation. Specialized in Microsoft Exchange (on-premises and Online), SharePoint, OneDrive, Teams, and the broader M365 ecosystem, including security and compliance tools like Purview and Defender.Renowned for leading complex migration, transition, and merger/acquisition projects, including:Exchange On-premises upgrades (2010 → 2016 → 2019)Hybrid Exchange to M365 migrationsTenant-to-Tenant, Google Workspace to M365, and Teams/SharePoint migrationsUsing industry-leading tools like BitTitan, ShareGate, Quest, and native Microsoft tools. Key Competencies:Microsoft 365 Migration, Integration, and ManagementExchange Server (2007 to 2019), Exchange Online, Hybrid DeploymentsMicrosoft Teams & Teams VoiceSharePoint Online & OneDrive for BusinessM & A IT Integration: Mailbox, Content, Identity, and Collaboration WorkloadsDeep understanding of ITIL practices, workflows, automation, and documentation (SOP, KEDB, Known Errors, SOW, Risk Management)Experience with RFI/RFP processes, Due Diligence (DD), and service transitions Project Highlights:Led mailbox migrations from Exchange 2010 to 2016 and 2016 to 2019Currently leading another mailbox migration from Exchange 2016 to 2019 in a hybrid setupSuccessfully handled Exchange Hybrid transitions to 2019 for enterprise customersHeaded multiple M&A integration projects, standardizing acquired environments into the parent company’s M365 estateLed full transformation projects across Exchange, Teams, SharePoint, OneDrive, Yammer, and 3rd-party tools like Acronis and Postfix (SMTP Relay) Security & Compliance:M365 Purview for Information Protection & GovernanceM365 Defender for threat protection and complianceStrong knowledge of identity and access management, retention policies, eDiscovery, and DLP🧰 Tools & Technologies:PowerShell Automation (for Exchange, M365, and Teams)BitTitan, ShareGate, Quest, SkyKickDPM 2010/2013, Acronis BackupPostfix (for SMTP relay integration)SOP, KEDB, and risk management documentation creation Leadership Experience:Built and led global support teams from scratchSuccessfully led transitions from DD through to production with 40+ KPIsHead of all acquisition-related IT transformations in the current organizationWorked directly with stakeholders across Germany and France on complex RFI/RFPs
Experience
Manager Consulting Expert
Oct 2022 — Present · Tamil Nadu, IN
Solution Architect
Education
Madurai Kamaraj University
Master of Business Administration (MBA), Systems
2011 — 2012
Find verified contacts for anyone on LinkedIn
Unifers gives sales teams verified emails and direct dials, enriched profiles, and outreach that lands in the inbox.
Free plan included · No credit card required
This profile is compiled from publicly available professional sources. Unifers is not affiliated with or endorsed by LinkedIn. Request removal of this profile.