Subash Mariyappan
Chennai
Summary
Dedicated System Engineer with a strong focus on network security, cloud computing, and collaboration. Experienced in managing Active Directory and implementing secure access solutions, contributing to improved system management and data integrity across various platforms.
Overview
3
3
Certifications
6
6
years of professional experience
Work History
System Engineer
ARGA Investment Management (India) Pvt Ltd
02.2021 - Current
- Managed Active Directory, optimizing user, computer, group, and policy configurations for improved access control.
- Implemented certificate-based authentication using RADIUS to enhance secure network access and integrated it with Microsoft Active Directory for centralized identity management.
- Configured and troubleshot site-to-site and remote-access VPN connections to ensure secure network connectivity.
- Upgraded and managed firewall address objects, policies, and security rules for improved access control and network segmentation.
- Performed firewall configuration corrections and optimization to enhance security, stability, and connectivity performance.
- Followed Azure disaster recovery drill processes to support business continuity.
- Managed database backup and restore operations to ensure data integrity and availability.
- Monitored firewall activity using Fastvue and server performance using Everest IMS.
- Managed antivirus policies for users and servers.
- Handled Microsoft 365 user and group creation, mailbox management, and email restriction policies.
- Resolved network vulnerability issues using the Drawbridge portal.
- Monitored and maintained access points and network switches to ensure stable network performance.
- Coordinated with vendors including SonicWall, Cisco, Bitdefender, and Microsoft to resolve technical issues and minimize downtime.
- Maintained IT asset inventory for accurate resource tracking and management.
- Designed, built, and deployed CI/CD pipelines in Azure DevOps.
- Configured automated build notifications and scheduled deployments.
- Performed LiveVault backup and restore operations to ensure secure file recovery, data protection, and business continuity.
- Automated server-to-server file transfers using PowerShell.
- Conducted network file audits using AD Audit Plus.
- Implemented Single Sign-On (SSO) through Active Directory integration.
- Collaborated with cross-functional teams using Jira for task and request management.
Junior System Administrator
Seventhsense Technologies Pvt Ltd
12.2019 - 03.2020
- Managed systems and servers while providing technical support to users.
- Created and deployed Docker containers for development environments.
- Ensured system uptime and optimized hardware resource allocation.
Education
Master of Science - Computer Science
Bishop Heber College
Tiruchirappalli04-2019
Bachelor of Science - Computer Science
Bishop Heber College
Tiruchirappalli06-2017
Skills
Active Directory
Certification
Azure DevOps Engineer – Greens Technology | 2024-01-05
Timeline
System Engineer
ARGA Investment Management (India) Pvt Ltd
02.2021 - Current
Junior System Administrator
Seventhsense Technologies Pvt Ltd
12.2019 - 03.2020
Bachelor of Science - Computer Science
Bishop Heber College
Master of Science - Computer Science
Bishop Heber College