Sriagil Sivakumar
IT Infrastructure & Security Engineer | Endpoint Security, MDM & VM Ops |
Coimbatore
Summary
IT Infrastructure & Security Engineer with 3+ years of experience across endpoint security, IAM/PAM, VM operations, and infra automation, with additional expertise in end-user support across Windows, macOS, and Linux. Proven success in securing 2500+ endpoints with Falcon, JAMF, and UEM, administering 3500+ VMs on VMware/Nutanix, and leading deployments of BitLocker, Zscaler, SSO, and MFA. Skilled in access governance, OS hardening, patch management, SIEM/DLP, and automation (Python, PowerShell). Recognized with multiple awards for delivering high-impact security and infra solutions. Pursuing PCNSE & Security+ to transition into advanced cybersecurity and infra security roles.
Overview
4
4
years of professional experience
10
10
Certificates
Work History
Specialist: IT Infrastructure Management
AppViewX
Coimbatore
02.2022 - Current
- Secured 2500+ endpoints across Windows, macOS, and Linux with MDM solutions (JAMF, ManageEngine UEM, CrowdStrike Falcon) and monthly patch compliance cycles.
- Strengthened identity and access management by administering Active Directory, Entra ID, Azure AD, and GPOs; implemented SSO integrations (OAuth2, Google SAML, Azure AD, and AD-based logins) across 400+ applications for secure enterprise access.
- Administered BeyondTrust PAM for 300+ privileged devices, ensuring secure session management and compliance.
- Performed OS hardening for Windows & Linux environments, reducing vulnerabilities through baselines, patching, and application whitelisting.
- Enhanced enterprise security posture using SIEM (ELK), DLP (CyberHaven), Tenable Nessus vulnerability scanning, and BurpSuite for web app testing.
- Managed VMware ESXi (6/7/8), Nutanix, and Proxmox virtualization platforms (3500+ VMs) with enterprise backup/recovery via Veeam.
- Designed and implemented automation workflows with Python & PowerShell, including Cisco Meraki SSID-based tracking and multi-cloud monitoring (AWS, Azure, GCP).
- Configured and maintained Cisco switches & Meraki APs, ensuring secure and optimized network performance.
- Led PoCs and deployments of BitLocker, FileVault, Zscaler ZPA/ZIA, and AD Audit Plus, contributing to ISO/ISMS audit readiness.
- Provided end-user support for 700+ staff across Windows, macOS, Linux, and VM environments; managed service requests, incidents, and ITIL-based change processes via Jira.
Salesforce Developer Intern
Inno Valley Works
Coimbatore
05.2021 - 12.2021
- Contributed to production-grade login/signup and password reset modules using Apex and Lightning Web Components
- Built user interface with Visualforce Pages, LC, LWC, HTML, CSS, JavaScript
- Gained exposure to Flow, Triggers, and Salesforce object customizations
Education
B-Tech - Information Technology
Sri Shakthi Institute of Engineering And Technology
Coimbatore, India 04.2001 -
Skills
MDM, EDR & DLP Implementation and Administration
Endpoint Security and Encryption
Firewall Administration
Threat & Patch Management
Application Whitelisting/Blacklisting
SSO, MFA, ZTNA, GPO, PAM
POCs & Implementations
ISO/ISMS Audit, SOC 2
Network & Data Center Monitoring
GSuite, Active Directory Administration
Virtualization & Backup solutions
Windows, Linux, macOS Administration
Technologies
- Security & Compliance: Falcon, BitLocker, Threat & Patch Mgmt, OS Hardening, MFA, ZTNA, ISO/ISMS Audit, Application Whitelisting
- Identity & Access Management (IAM): Active Directory, GPO, Entra ID (Azure AD), SAML, OAuth2, OIDC
- Privileged Access Management (PAM): BeyondTrust PAM, CyberArk
- MDM & Endpoint Security: ManageEngine UEM, JAMF Pro, CrowdStrike, Cisco Meraki
- Infra & Virtualization: VMware, Nutanix, Windows Server, Linux, macOS, Veeam Backup, Ops Manager
- Cloud & Monitoring: AWS, Azure, GCP, Google Workspace, Cost Monitoring, Datacenter Monitoring
- Automation & Dev: Python, PowerShell, MERN Stack, Git, HTML, CSS, JavaScript
- Tools & Platforms: Fortigate Firewall, SIEM (ELK), DLP (CyberHaven), Salesforce (Apex, LWC, Visualforce)
- End-User & Collaboration Tools: Windows, macOS, Linux, GSuite, Google Workspace, Jira, ITIL-based support
Languages
English
Advanced (C1)
Tamil
Bilingual or Proficient (C2)
Projects And Automations
- Wi-Fi User Count Automation, Created a Python tool to extract and email daily Cisco Meraki-based user counts by SSID/location; used by HR and admin teams.
- Multi-Cloud Cost Tracker, Developed a full-stack MERN web app for internal team to monitor daily costs from AWS, Azure, and GCP accounts.
- Security Tool POCs, Led PoCs for BitLocker deployment, password manager implementation, ZTNA testing, and endpoint policy automation.
Awards
- MVP Award (2024): Honored individually for leading successful implementations of BitLocker encryption, SSO integration, and a password manager solution—strengthening endpoint security and access control posture.
- Circle of Excellence Award (2024): Recognized as part of the best-performing team at AppViewX for delivering high-impact infrastructure automation and secure operational excellence.
Certification
PCNSE (Palo Alto), In Progress