Rahul Rajendrababu

Experienced IT professional with over 8 years of experience across the UAE and India, supporting and managing IT environments for 500+ users. Specialized in Microsoft 365, Microsoft Entra ID (Azure AD), and hybrid cloud infrastructure, with solid expertise in endpoint management, security, and network troubleshooting. Proven track record of optimizing incident resolution, strengthening security controls, and delivering reliable IT services within ITIL-driven, SLA-based environments.

Strong focus on cloud adoption, operational efficiency, and continuous service improvement.

Microsoft 365 & Entra Administrator at Cupola Teleservices (2019-09 – Present)

• Provide L1/L2 technical support for end users across Windows environment, ensuring timely issue resolution within defined SLAs, following ITIL-based service management practices.
• Lead the design, deployment, and governance of Microsoft 365 services, including Exchange Online, SharePoint Online, OneDrive, and Microsoft Teams, with a focus on cloud-first and hybrid environments.
• Architect, manage, and support Exchange environments (2010, 2013, 2016, 2019), including hybrid configurations, coexistence strategies, and cloud modernization initiatives.
• Administer and support Microsoft 365 workloads, ensuring high availability, performance, and security compliance.
• Design and manage mail flow, DNS configurations (SPF, DKIM, DMARC), and transport rules to ensure secure and reliable email delivery.
• Support and execute on-premises-to-cloud migration projects, ensuring minimal business disruption, data integrity, and adherence to best practices; possess working knowledge of tenant-to-tenant migration strategies.
• Manage identity and access solutions using Microsoft Entra ID (Azure AD), including user lifecycle management, MFA, Conditional Access, SSO (SAML), Azure AD Connect, and ADFS integration.
• Provide support for Azure security services, including Azure Key Vault, Azure Firewall, and Network Security Groups (NSG), by managing configurations, controlling access, and troubleshooting connectivity and security-related issues.
• Implement and manage endpoint and device lifecycle using Microsoft Intune, including device enrollment, compliance policies, application deployment, and security configurations across Windows and iOS platforms.
• Ensure robust security and compliance posture using Microsoft security solutions such as Microsoft Purview, Data Loss Prevention (DLP), Conditional Access, MFA, Defender for Office 365, and Sensitivity Labels.
• Troubleshoot and resolve hardware, software, and network-related issues, including LAN, Wi-Fi, VPN connectivity, and endpoint security tools.
• Automate administrative tasks, reporting, and workflows using PowerShell, Microsoft Graph API, Power Automate, and Power BI to improve operational efficiency.
• Monitor infrastructure and services using tools such as PRTG, proactively responding to alerts to maintain uptime and performance.
• Develop and maintain technical documentation, including High-Level Designs (HLD), Low-Level Designs (LLD), migration runbooks, SOPs, and audit/compliance documentation.
• Manage the end-to-end service desk ticket lifecycle, including logging, prioritization, escalation, and resolution using tools such as ManageEngine ServiceDesk Plus and Jira.
• Maintain IT asset inventory and support hardware provisioning, lifecycle management, and compliance tracking.
• Collaborate with internal teams, stakeholders, and external vendors to support infrastructure projects, resolve complex issues, and enhance service delivery.

IT Support | System Administrator at TOCCSS Datacom (2016-05 – 2018-06)

• Provided first-level technical support for desktops, laptops, printers, and other peripherals.
• Troubleshot basic network issues including LAN, Wi-Fi, and VPN connectivity.
• Managed user accounts and password resets in Active Directory/Azure AD under supervision.
• Assisted in software installation, configuration, and updates for end-user systems.
• Assisted in setting up new workstations, patch management, and operating system upgrades.
• Delivered remote support using TeamViewer, Quick Assist, and Remote Desktop tools.
• Monitored daily system and network alerts to identify and report potential issues.

Bachelor of Computer Science Engineering in Computer Science Engineering – UKF College of Engineering and Technology, Kerala University (2011 – 2015-09)

Diploma in Network Engineering in Network Engineering – IIAT