Office 365 Administrator with proven expertise at Tata Consultancy Services, excelling in security compliance and team leadership. Successfully managed over 100k user accounts while enhancing operational efficiency through innovative solutions. Adept at troubleshooting complex issues and fostering collaboration, ensuring exceptional service delivery and adherence to SLAs.
Overview
2
2
Languages
1
1
Certification
12
12
years of professional experience
Work History
Assistant consultant
Tata Consultancy Services
12.2022 - Current
O365 / Exchange Online Administrator Security, Compliance & Team Leadership
Managing/Administering O365 Products: Exchange Online, Teams, and Azure Active Directory.
Primary support scope to manage Hybrid setup (2019 Exchange servers and Edge Servers).
Maintaining licensed user accounts/mailboxes, shared mailboxes, resource mailboxes, equipment mailboxes, groups (distribution lists, security, mail-enabled security, O365 groups) and assigning permissions.
Implementing configuration changes for distribution lists, O365 groups, and resource accounts.
Helped ensure team performance meets or exceeds defined Service Level Agreements.
Migrating mailbox data from one mailbox to another.
Performed PST migration to move mailbox content to the online archive mailbox (tenant-to-tenant PST migration).
Implemented online archive policy for all tenant users with a standard retention policy.
Configured and managed retention policies to move and delete mailbox content.
Deploying add-ins for Office suite applications to end users based on requirements.
Migrating mailboxes from On-Premises to Cloud & Cloud to On-Prem environment.
Primary on-site support for Office 365 issues.
Provided troubleshooting support for various technical issues.
Troubleshooting mailbox login issues, mail flow issues, email restoration issues, and mailbox permissions issues.
Working with other administrators and engineers of Exchange, Windows, Identity, Network, and Security to perform system changes and troubleshooting.
Microsoft Teams Administration
Create and manage Teams groups and channels (standard, private, and public).
Create and manage Teams meeting policies, messaging policies, and Teams meeting settings via Teams Admin Portal.
Publish new applications to Teams clients based on requirements.
Security & Compliance
Create and manage malware, spam, connection filters, and ATP policies.
Whitelisting and blacklisting IP addresses, email addresses, and domains.
Checking security alerts and sign-in logs for suspicious activity on user mailboxes.
Monitoring security alerts to mitigate risks.
Create and manage transport rules to redirect/forward/block emails in the organization.
Prepared ransomware runbooks for all Office 365 products.
Documentation & Reporting
Prepared and presented RCA (Root Cause Analysis) reports to clients, identifying key issues and solutions.
Prepared KB documents and process-oriented documents.
Participating in change management and problem management.
Automation & Process Improvement
Collaborated with automation team to design workflows that streamlined request processing and improved service delivery.
Led team dynamics initiatives to improve collaboration and communication.
Functioned as backup lead, providing guidance and support to 8 team members.
Handling escalations regarding Sev1/2 tickets.
Participated in change management and problem management.
Helped ensure team performance meets or exceeds defined Service Level Agreements.
Collaborated with automation team to design workflows that streamlined request processing and improved service delivery.
Office Lead Administrator
Wipro India Private Limited
12.2021 - 12.2022
Exchange & Office 365 Administration
O365 Administration & User Management
Managing/ Administering O365 Products i.e., Exchange Online and Teams
Maintaining around 100k licensed User Accounts / Mailboxes, Shared mailboxes, Resource mailboxes, Distribution lists, O365 Groups and assigning permissions
Managed on-boarding and off-boarding of mailboxes for users, ensuring seamless access and compliance.
Deploy the add-ins to the users based on requirements
Maintained ~80k licensed user accounts, shared/resource mailboxes, distribution lists, O365 Groups, and assigned permissions to ensure seamless access and collaboration.
On-boarded and off-boarded mailboxes for users.
Deploying add-ins to users based on requirement.
Perform scripting administration tasks and reporting using PowerShell.
Provided troubleshooting and support for various technical issues.
Troubleshoot the MFA and Conditional access policy issues
Handling escalations regarding Sev1/2 tickets
Primary On-site support for Office 365 issues
Working with other administrators and engineers of Exchange, Wintel, Network, and Security to perform system changes and troubleshooting
Security & Compliance
Creating and managing malware, spam, and connection filters.
Whitelisting/blacklisting IP addresses, email addresses, and domains.
Checking security alerts and sign-in logs for suspicious activity.
Monitoring security alerts to mitigate risks.
Rolling out MFA in batches via Conditional Access policies.
Troubleshooting MFA and Conditional Access policy issues.
Enabling and deploying AIP labels in batches.
Enabling and deploying ATP in batches.
Microsoft Teams Administration
Creating and managing Teams groups and channels (private/public).
Creating and managing Teams rooms.
Creating and managing Teams meeting policies, messaging policies, and meeting settings via Teams Admin Portal.
Publishing new applications to Teams clients based on requirement.
Intune & Mobile Device Management
Enrolling and managing ~80k mobile devices via Intune Endpoint Manager.
Troubleshooting mobile enrolment issues and device compliance issues.
Publishing requested applications to the Intune company portal.
On-Premises & Infrastructure
Work experience with patching On-Premises Exchange 2013 Server.
Working with other administrators/engineers (Exchange, Wintel, Network, Security) for system changes and troubleshooting.
Support & Operations
Handled escalations regarding Sev1/2 tickets, providing timely resolutions to minimize service disruption.
Primary on-site support for Office 365 issues.
Prepared root cause analysis (RCA) reports and presented findings to clients, fostering transparency and trust in support processes.
Participating in change management.
Knowledge transfer to Service Desk team (POC).
Helping ensure team performance meets/exceeds defined SLAs.
Technical Service Specialist
IBM India Private Limited
12.2016 - 12.2019
Collaborated with UKPN client on project initiatives to enhance service delivery
Exchange & Office 365 Administration
Maintaining around 20k licensed User Accounts / mailboxes, Resource mailboxes, Distribution lists and Groups, and assigning permissions
On-boarded and off-boarded mailboxes upon request
Managed mailbox migration from on-premises to cloud environment, ensuring seamless infrastructure transition
Migrating the Mailboxes from On-Premises to Cloud environment
Troubleshooting & Support
Troubleshooting Mail flow issues & Mailbox permissions issues
Troubleshoot Outlook application issues
Support Federation and Multifactor Authentication issues
Primary On-site support for Office 365 issues
Handling escalations regarding Sev1/2 tickets
Perform scripting administration tasks and reporting using PowerShell
Coordinated support and operations for team initiatives
Preparing RCA (Root Cause Analysis) and presenting to the clients
Participate in the Change management
Supported team in achieving defined Service Level Agreements through effective coordination and communication
Promoted collaboration and knowledge sharing among team members
Knowledge transfer to Service.
System Administrator
Zen Quality Assurance Private Limited
05.2014 - 12.2016
Client: ZenQ
Windows Administration
Server Administration
Working on Windows 2008, 2008 R2 / 2012 server environment
Monitored and administered server CPU, memory, and hard disk usage using Manage Engine and Nagios Tool
Configured server sharing and security permissions for users according to project requirements
Monitoring the Server/Storage and providing L1 support for Servers
User & Account Management
Create, change, and delete user accounts per requests
Working on Google Apps (create, change, and delete user, Groups, and Distribution list)
Virtualization & Cloud
Working on ESXi, Hyper-V to create Clients (XP, 7, 8, 8.1, 10 / Server VM 2008, 2008 R2 & 2012) environments for project needs
Managing VMware servers and handling project-related virtual machines in the organization
Tools & Ticketing
Working with Jira ticketing tool and handling technical issues related to Server, Applications, and Hardware problems
Network & Connectivity
Coordinating with ISPs / service partners in case of downtime and issues
Provided technical support to users
Supported users through screen sharing, emails, and phone calls.
Managed antivirus software installations
Installation and configuration of McAfee and Trend Micro Antivirus with day-to-day updates
Desktop Administration & Migration
Migrated 200+ desktops from Windows 7 to Windows 8.1 and 10 Professional, ensuring compatibility with user-required applications
Education
B.Tech -
Sri Mittapalli College Of Engineering
Guntur
Intermediate -
VJ Junior College
Mangalairi
SSC -
CK High School
Mangalagiri
Skills
Office 365 Administration
Exchange Online Management
Exchange Server Management
Azure Administration
Cloud Infrastructure
Messaging Administration
Network Security
Security compliance
Troubleshooting
User support
Team collaboration
Windows Server Administration
Technical Certifications
Microsoft Certified Technology Specialist (70-640)
O365 Certified (70-346, 70-347)
Azure Certified (Az-900)
Academic Credentials
B.Tech from Sri Mittapalli College Of Engineering, JNTU Kakinada.
Intermediate from VJ Junior College, Mangalairi.
SSC from CK High School, Mangalagiri.
Disclaimer
I hereby declare that the above information and particulars are true and correct to the best of my knowledge and belief.
Professional Skill Set
Experienced IT Professional with over 12 years of expertise across diverse support domains.
Office 365 & Messaging Administration: 8+ years of proven success managing and supporting Microsoft Exchange Server environments (2013, 2016, 2019, and RTM).
Windows Server Administration: Skilled in identity management, configuration, and troubleshooting to ensure seamless operations.
Hardware & Networking: Strong foundation in infrastructure support and network maintenance, delivering reliable and secure IT solutions.