Arijit Das

IT Support & System Administration specialist with 6+ years of experience in managing enterprise IT infrastructure, including Windows Server environments, AD, M365, virtualization, Linux systems, and firewall security. Demonstrated capabilities in ISO 27001 & 9001 internal audits, vulnerability assessment, security hardening, patch deployment, and risk analysis. Strong understanding of firewall operations (SOPHOS/FortiGate), network security, backup systems, and ITSM standards.

Currently transitioning into a Security Analyst role, leveraging hands-on experience in security controls, compliance, access management, and incident response fundamentals.

IT Executive - Royal Infraconstru Ltd

(2025-07)

• Administering AD user accounts, DHCP configuration, domain joins, and access permissions.
• Managing FortiGate firewall operations, including policy updates and monitoring.
• Handling M365 operations: mailbox creation, group management, license allocation.
• Coordinating biometric access control: backup, card issuance, permission revocation.
• Performing MySQL backups and ensuring data protection integrity.
• Overseeing vendor coordination and asset tracking for IT infrastructure.

System Support Executive - MG Tathya Solutions Pvt Ltd

(2019-05 - 2025-04)

• Conducted end-to-end ISO 27001 & 9001 internal audits, including policy reviews, gap identification, corrective actions, and internal training.
• Performed vulnerability assessments and endpoint protection monitoring.
• Implemented and monitored patch management policies based on risk levels.
• Maintained access control systems (ESSL, Time Desk), ensuring secure authentication.
• Managed Windows Server 2008R2/2016: AD, DNS, DHCP, GPO, ADCS
• Prepared monthly AD reports using AD Manager Plus.
• Patch Management through Action1 tools and create patching report
• Installed and configured Ubuntu: LVM, permissions, Samba shares, network services.
• Configured Dell server iDRAC, RAID, and performed hardware diagnostics.
• Managed SOPHOS XG/XGS firewalls: rule creation, firmware updates, SD-WAN, NAT, filtering, DMZ setups.
• Conducted firewall migration and generated audit-ready reports.
• Managed server rooms, CCTV systems, and IP camera deployments.
• Checked antivirus (Bitdefender) updates on a regular basis, created policies based on users' work specifics, scheduled weekly full system scans, and generated monthly reports.
• Created and restored VMs in VMware ESXi, managed snapshots, exported OVA images.
• Implemented TrueNAS & Duplicati storage for secure backups and data access control.
• Provided L2 technical support via ticketing system with effective prioritization.
• Installed enterprise applications (M365, SQL, NodeJS, VS Code).
• Ensured adherence to ITIL processes for incidents and service requests.

Bachelor of Computer Application Infrastructure Management Services - Infrastructure Management Services - Tilak Maharashtra University

Bachelor of Commerce - Commerce - Calcutta University (2018)