System Administrator Senior

NAVEEN KUMAR.S

Senior System Administrator

E-Mail-ID: *.**************@*****.***

Contact NO. : +91-822-***-****

PROFESSIONAL SUMMARY

Highly skilled Senior System Administrator with over 6.11 years of experience in providing comprehensive technical support and solutions in fast-paced environments. Expertise in troubleshooting hardware and software issues, managing IT projects to enhance user experience and operational efficiency. Adept at training users and developing documentation to streamline processes. Strong communication and interpersonal skills with a focus on delivering exceptional service. CORE COMPETENCY

Advance level experience in Azure AD, Azure Virtual Desktop, Intune Administration, O365 Administration, Patch Management, IAM, PAM, PIM, Antivirus Management, Cloud Administration, Incident Management, Change Management, Vendor Management, RBAC, DLP, MDM, ISO 27001 & SOC-2 External & Internal Audits.

Intermediate Level Experience in Linux platform such as Redhat, Ubuntu. CERTIFICATION & COURCE COMPLETED

Microsoft Certified Azure Administrator Associate.

Certified ISO 27001 Lead Implementer.

RedHat Certified Engineer (RHCE).

EDUCATIONAL QUALIFICATION

Bachelor Degree In Electronic and Communication Engineering in CSI College Of Engineering,The Nilgiri’s under Anna University Chennai (2013-2016) with 60% TECHNICAL SKILLS

Linux Services : Zentyal AD & LDAP.

Operating Systems : Windows 10 & 11, Red Hat, Ubuntu. Cloud Technologies : Azure, AWS, GCP, Digital Ocean. Patch Management : UEM Mange Engine Desktop Central. Ticket Management : Zoho Desk, Keka, BMC Remedy.

IAM : Microsoft365 Azure Entra ID.

Security Tools : Microsoft Intune, Trend Micro, CrowdStrike Falcon Antivirus, Netwrix Endpoint Protector (DLP), Nessus (Tenable). CAREER SUMMARY

WORKED IN CORESTACK INC, CHENNAI.

Designation : Senior System Administrator

Duration : April 2025 to May 2025.

ROLES & RESPONSIBILITIES IN CORESTACK INC.

Managing 230 user accounts and licenses in Azure Active Directory and Office 365, including on- boarding and off-boarding processes.

Manage Microsoft 365 cloud portal for user administration, license management, security settings, and troubleshooting.

Create, modify, and delete user accounts; assign and manage licenses for Microsoft 365 applications.

Create and manage Distribution lists, Security groups, M365 Groups, and Shared mailboxes.

Administer Azure Entra ID to manage identity and access for cloud-based applications.

Implement Azure Entra ID(AAD) for authentication, RBAC, and MFA.

Configure self-service password reset in Azure Entra ID.

Perform routine audits of Microsoft 365 and Azure Entra ID.

Deploy and manage Microsoft Intune for MDM and MAM, ensuring compliance with company Security standards.

Configure and maintain MDM, including device enrolment using autopilot..

Migrated windows 10 to windows 11 using windows updates policy in Intune.

Monitor and identify missing patches across systems/Servers and applications in the network to ensure all endpoints are up to date.

Utilize Zoho Manage Engine to automate patching processes, ensuring comprehensive coverage and timely deployment.

Utilize Zoho ManageEngine for application deployment, policy enforcement, and security configurations.

Periodically perform vulnerability scans across systems, servers, and applications using tools like Nessus, providing status reports to ensure timely resolution and enhance security.

Manage and configure SaaS-based security solutions, including CrowdStrike Falcon Antivirus & Netwrix Endpoint Protector (DLP).

Actively monitor CrowdStrike Falcon AV dashboards to detect security threats and take appropriate response actions (such as isolating endpoints, investigating alerts, and taking remediation steps).

Ensure all endpoints are protected with Netwrix Endpoint Protector to prevent unauthorized access and transfer of sensitive data.

Monitor and respond to DLP events to prevent data breaches.

Ensure incident and change ticket response within SLA compliance through a ticketing tool. WORKED IN KOGNIVERA ITSOLUTIONS PRIVATE LIMITED, BANGALORE. Designation : Senior IT Support Engineer.

Duration : Dec 2024 to Jan 2025.

ROLES & RESPONSIBILITIES IN KOGNIVERA IT SOLUTIONS PVT LTD.

Managing 180 user accounts and licenses in Azure Active Directory and Office 365, including on- boarding and off-boarding processes.

Configured and managing Fortinet100F firewall, SD-WAN, Policies, Fortinet access points.

Configured and managing Endpoint manger policies device compliance, conditional access, MDM.

Configured and managing Microsoft Defender policies & rules to secure Emails & Endpoints.

Configured and managing Azure information protection labeling, alert policies & DLP in Office 365.

Configured and managing SSO, SAML for internal & external applications in Microsoft Azure.

Conduct regular audits and compliance checks to ensure adherence to organizational policies and regulatory requirements.

Information Security incident handling, Change Management, Business continuity and legal compliance requirement monitoring.

Performing internal audits for security compliance and taking the lead in external security audits, with a focus on supporting various security aspects, including ISO 27001. WORKED IN AXIDIO TECHNOLOGIES PRIVATE LIMITED, BANGALORE. Designation : Senior IT Support & Security Officer. Duration : Feb 2022 to Nov 2024.

ROLES & RESPONSIBILITIES IN AXIDIO TECHNOLOGIES PVT LTD.

Configured and managing Perimeter81 cloud VPN for accessing the Bit bucket, GCP & Digital Ocean.

Implemented Trend Micro Antivirus agents in users end, Cloud App & Email Security In Office 365.

Managing 150 user accounts and licenses in Azure Active Directory and Office 365, including on- boarding and off-boarding processes.

Configured and managing Endpoint manger policies device compliance, conditional access, MDM.

Configured and managing Microsoft Defender policies & rules to secure Emails & Endpoints.

Configured and managing Azure information protection labeling, alert policies & DLP in Office 365.

Configured and managing SSO, SAML, OAuth for internal & external applications in Microsoft Azure.

Migrated windows 10 to windows 11 using windows update policy in intune.

Creating, modifying, and deactivating user accounts within the organization's identity management system (IAM).

Respond to and resolve IT support tickets submitted by end-users through Zoho desk.

Handling, responding and resolving issues as per Service level agreement (SLA).

Ensure Security patch updates performed in office laptops by Manage engine Endpoint protection.

Event logging and review of admin and user activities.

Information Security incident handling, Change Management, Business continuity and legal compliance requirement monitoring.

Performing internal audits for security compliance and taking the lead in external security audits, with a focus on supporting various security aspects, including ISO 27001, 27701 and SOC-2 Compliance.

WORKED IN DATACORP TRAFFIC PRIVATE LIMITED, BANGALORE. Designation : System Administrator.

Duration : June 2018 to Jan 2022.

ROLES & RESPONSIBILITIES IN DATACORP TRAFFIC PVT LTD.

Supporting over 400 Clients Windows & Ubuntu desktops and laptops.

Installation, Configuration and Management of OS Window and Ubuntu clients.

Installation, Configuration and Management Networking LAN Cables, Switches, Servers.

Working on User requests like Setting Permissions to folders and copying data to American Megatrends (NAS) Storage Server.

Executing Bash & Powershell scripts in users end, servers for Installation and configuration of various software’s and configurations.

Design and Implementing the Linux architecture for various applications bases on Business need.

Using Ticketing & Log monitoring tools like Spiceworks.

Installation, Configuration and Management of Active Directories Windows 2012 R2, Zentyal, LDAP and Password policy.

Installation, Configuration and Management FTP, VPN (site to site), VMware, VLAN, DVR.

Installation, Configuration and Management of firewalls (Watchguard & Sophos XG 135).

Using Ansible for Installation and Configuration by Pushing application from master to slave using playbook.

DECLARATION

I do hereby declare that the particulars of information and facts stated above are true, correct and complete to the best of my knowledge and belief. Date:

Place: [S.NAVEEN KUMAR]

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