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Samaresh Bhunia - cover
Samaresh Bhunia

Samaresh Bhunia

IT Professional with 10+ years of experience in network security, firewall management,
📍 Kolkata, India · (0) · Member since
Availability
🏠 Works remotely / from home Yes No
🧰 Travels to client Yes No
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Presentation

I am an IT Professional with over 10 years of experience in Network Support, IT Infrastructure Management, Firewall Administration, Network Security, and Technical Troubleshooting. Currently working as a Senior Technical Support Engineer at E-Matrix Corp, I specialize in managing enterprise firewall solutions, including Palo Alto, FortiGate, and SonicWall.

My technical expertise includes firewall configuration and management, VPN (IPsec/SSL), NAT, routing and switching, network monitoring, security policy management, endpoint security, incident response, and performance optimization. I also have hands-on experience with security solutions such as Bitdefender GravityZone, CrowdStrike, SentinelOne, Kaspersky, Acronis, and Veeam Backup.

Firewall Services: FortiGate, Palo Alto, and SonicWall installation, configuration, HA deployment, NAT, port forwarding, DMZ, VPN, and firewall troubleshooting.

Network Security: Firewall policy management, security monitoring, log analysis, and network security health checks.

Network Infrastructure: LAN/WAN setup, routing, switching, VLAN configuration, ISP connectivity, and network troubleshooting.

VPN Solutions: Site-to-site IPsec VPN, remote-access VPN, and secure branch-office connectivity.

Endpoint Security: Bitdefender GravityZone, CrowdStrike, SentinelOne, and Kaspersky endpoint security deployment and support.

IT Infrastructure Support: Desktop, server, Active Directory, hardware, software, and technical troubleshooting.

Backup & Disaster Recovery: Acronis and Veeam backup configuration, monitoring, and restoration support.

IT AMC Services: Annual Maintenance Contracts, preventive maintenance, remote support, and on-site technical assistance.

VoIP & IP Telephony: Yealink and Grandstream IP phones, VICIdial, GoAutoDial, and dialer troubleshooting.

Email Security: Check Point email security support and troubleshooting.

IT Asset Management: IT inventory, software licensing, documentation, and IT service management.
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Background

Sr. Technical Support Analyst - Solution Architect
E-Matrix Corp · 15/05/2025 – Today
Managed enterprise firewall solutions including Palo Alto and FortiGate

Configured and optimized NAT, VPN tunnels, and security policies

 Handled incident response and security monitoring in SOC environments

 Reduced downtime by implementing proactive monitoring and alerting systems

 Collaborated with cross-functional teams for infrastructure upgrades

 Assisted in firewall configuration and network setup

 Maintained documentation and system logs

 Provided L2 support for network security.
Manager – IT Support
Shyam Future Tech Pvt Ltd. · 05/04/2023 – 10/05/2025

Leading IT support operations and managing 24×7 infrastructure availability

Handling firewall logs, network monitoring, and issue escalation

Managing NAT, ISP connectivity, and network performance optimization

Overseeing VoIP systems, dialer platforms, and IP telephony

Coordinating with ISPs, vendors, and service providers for quick resolution

Driving team productivity and ensuring SLA compliance
Manager – IT Support
Whree Design Pvt Ltd. · 06/01/2023 – 01/04/2023

managed enterprise network infrastructure including LAN, WAN, and VPN environments.

Provided L2/L3 technical support for critical network and security incidents

Coordinated with clients and vendors for issue resolution and system upgrades

Supported BOP IT and Dialer systems, ensuring seamless communication infrastructure

Maintained documentation for network architecture, configurations, and troubleshooting procedures
Jn. IT Technician
Vidini Technology Pvt Ltd · 06/05/2020 – 03/01/2023
Supported BOP IT and Dialer infrastructure, ensuring uptime and call flow stability

Managed application filtering, security policies, and access control rules

Monitored network bandwidth utilization and performance optimization

Coordinated with clients for incident resolution, troubleshooting, and system upgrades
Jn. IT Technician
VAP Technology · 07/06/2015 – 03/05/2020

Support: L1/L2 Desktop and server Troubleshooting.

Dialer database management (Navicat tools).

IP Phone configure (Yealink and Grandstream)

Floor Support (Desktop and End user support)

Coordinated with internal teams and clients for issue resolution and service delivery.

Maintained technical documentation, reports, and network diagrams

Manage AD sever basic level

Manage Firewall (SonicWall)
JCHNP
Jetking Infortrain · 2012 – 2015
Computer Fundamentals & Hardware



Basic Electronics & Digital Electronics



PC Assembly & Troubleshooting



BIOS, CMOS, RAM, CPU, HDD & SSD



Windows 10/11 Installation & Administration



Computer Networking (LAN, WAN, OSI & TCP/IP)



IP Addressing & Subnetting



Router & Switch Configuration



DNS, DHCP, VLAN, NAT & Routing



Windows Server Administration



Active Directory & Group Policy



Linux / Red Hat Administration



Cisco CCNA Fundamentals



Network Security & Firewall Basics



Printer & Peripheral Troubleshooting



Practical Lab & IT Helpdesk Support



Communication Skills & Interview Preparation
DPDPA
DPDPA
15/10/2026
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🇬🇧English 🇮🇳Hindi
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Working hours

Monday
From08h00To18h00
Tuesday ▪ Today
From08h00To18h00
Wednesday
From08h00To18h00
Thursday
From08h00To18h00
Friday
From08h00To18h00
Saturday
Closed
Sunday
Closed
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