Summary
Overview
Work History
Education
Skills
Certification
Social Link
Total Work Experience
Timeline
Generic
Tamal Sarkar

Tamal Sarkar

Kolkata

Summary

Strategic and hands-on IT Operations and Cybersecurity Professional with extensive experience in designing secure infrastructure, managing enterprise systems, and leading compliance initiatives. Proven expertise in ISO 27001 implementation, cloud and on-prem environments, ERP platforms, and enterprise security tools. Adept at risk mitigation, incident response, and managing cross-functional technical teams to ensure the resilience, performance, and compliance of IT systems.

Overview

23
23
years of professional experience
1
1
Certification

Work History

IT Operations Manager

Vedant Fashions Limited - Manyavar-Mohey
03.2025 - Current
  • Led daily IT operations across multi-site infrastructure and user environments, maintaining 99.9% uptime and ensuring SLA compliance for business continuity.
  • Designed and implemented a unified cybersecurity strategy aligned with ISO/IEC 27001:2022, significantly improving the organization's overall security posture.
  • Develop and maintain security policies and procedures, ensuring they remain current and enforceable.
  • Managed ISO 27001:2022 certification process in collaboration with EY and Scrut, leading internal and external audits that resulted in zero major non-conformities.
  • Oversaw GINESYS ERP on-premise server infrastructure, ensuring consistent high availability, system performance, and scalability for core business functions.
  • Directed deployment of advanced cybersecurity solutions, including next-generation firewalls, EDR, DLP, IAM, and endpoint protection, improving threat visibility and reducing detection time.
  • Administered IT security monitoring and operations using OpManager, Sophos Central, and MS Security Center (Defender) to proactively detect, contain, and remediate cyber threats.
  • Managed Microsoft O365 infrastructure including MS Intune and MDM, delivering secure, stable, and enterprise-grade communication across the organization.
  • Led web server administration, leveraging VMware virtualization for on-premises systems and integrating AWS cloud services for hybrid scalability and resilience.
  • Executed secure cloud migration strategies, successfully transitioning legacy workloads to Microsoft Azure while implementing robust cloud-native security controls.
  • Performed comprehensive Vulnerability Assessment and Penetration Testing (VAPT) using Burp Suite, OWASP ZAP, and Nessus, identifying and mitigating critical vulnerabilities.
  • Led high-impact security incident investigations, conducting root cause analyses and responding with zero data loss in business-critical situations.
  • Directed cross-functional IT teams, including system administrators, network engineers, and security analysts, enhancing service desk performance and first-response efficiency.
  • Conducted third-party vendor risk assessments, embedding cybersecurity clauses into IT contracts to minimize third-party security exposure.

IT Manager

Shyam Steel Industries Ltd.
04.2019 - 03.2025
  • Led IT operations, IT security, and cloud server management, implementing comprehensive IT security policies, protocols, and procedures
  • Oversaw the design, maintenance, and continuous improvement of security systems to ensure robust protection
  • Oversee cloud security (Azure, AWS) by applying identity, access, and network security policies across hybrid environments.
  • Managed a Security Alert Response Team, investigating alerts, testing systems, and deploying patches
  • Conducted regular VAPT and security audits to identify and address risks
  • Evaluate and implement security technologies and frameworks to enhance the organization’s cyber defense capabilities.
  • Administered cloud solutions, including AWS and MS Azure, for ERP, HRMS, and web hosting
  • Reviewed and analyzed incident reports, investigated breaches, and applied preventive measures
  • Ensured compliance with ISO 27001 and other relevant security laws.
  • Develop and maintain security policies and procedures, ensuring they remain current and enforceable.
  • Led and optimized system administration teams, overseeing infrastructure operations and implementing advanced monitoring tools for proactive management
  • Lead and mentor a team, assigning tasks, guiding skill development, and reviewing outcomes.

IT Infrastructure Lead

Indus Net Technologies
08.2015 - 04.2019
  • Led IT infrastructure services, aligning with business goals and leveraging IT trends
  • Established metrics, KPIs, and SLAs to improve IT operations and security
  • Managed security solutions (firewalls, antivirus, IDS) and performed regular system updates with documentation
  • Designed Active Directory infrastructure on Windows Server 2019
  • Managed ERP, web servers, G-Suite, O365, and virtual call management
  • Handled network asset management, system monitoring, and IT helpdesk
  • Led a talented team, ensuring optimal hardware, network operations, and vendor relationships while supporting physical security systems

Technology Specialist

Advance Technology Labs
05.2013 - 07.2015
  • Led IT infrastructure services, driving innovation and leveraging IT trends to meet business objectives
  • Established metrics, KPIs, and SLAs to enhance IT operations and security
  • Regularly updated security systems with technical documentation and managed IT security solutions, including firewalls, antivirus, and intrusion detection
  • Designed and implemented Active Directory on Windows Server 2019
  • Managed ERP, web servers, G-Suite and virtual call management systems
  • Oversaw network asset management, system monitoring, and IT helpdesk
  • Led a skilled team, optimized performance, and maintained strong vendor relationships to support infrastructure operations and physical security systems

System Administrator

RN Education Pvt. Ltd.
04.2011 - 04.2013
  • Resolving server and software issues, ensuring security and recovery of all systems
  • Managed Active Directory, DNS, DHCP, user accounts, and policies
  • Administered Exchange Mail Server and installed security patches for optimal protection
  • Installed and configured online exam servers and provisioned software/hardware following security protocols
  • Monitored hardware and software for errors, performing regular updates to maintain functionality
  • Managed IP camera systems and attendance systems to ensure proper operation and security

System administrator and Technical Trainer

karROX Technologies Ltd.
04.2010 - 03.2011
  • Install security patches to ensure system reliability and protection
  • Provisioning new software and hardware, following security policies
  • Installed, configured, and monitored PROMETRIC servers for exam delivery
  • Managed DVR and cameras for the Prometric Center
  • Tuned system and network performance to ensure optimal infrastructure operation
  • Conducted routine audits of systems, software, and networks
  • Performed system and server backups
  • Delivered technical training on Microsoft & Cisco certifications and conducted corporate training on Microsoft Server technology

Sr. Faculty-cum-Hardware Engineer

CMC Computer Education
04.2008 - 04.2010
  • Managed Technical Administrative work, Planning class schedule, Lab Management, Responsibility Distribution to all Junior Trainer
  • Train the students of Basic electronic, MS Office, Hardware, Networking, MCSE and MCA & BCA
  • Preparation of Lab as well as training

System Administrator

RC Infosolutions Pvt. Ltd.
12.2005 - 03.2008
  • Analyze system logs to identify potential issues and ensure smooth operation
  • Managed user administration and implemented policies for system, network, and security use
  • Administered LAN/WAN with Cisco routers and switches
  • Verified proper functioning of peripherals and monitored system performance
  • Designed preventive maintenance schedules to minimize downtime and hardware faults
  • Created backup and recovery policies
  • Integrated and updated software to improve system compatibility and efficiency

Hardware & Network Engineer

Bhumi solutions Pvt. Ltd.
12.2003 - 12.2005
  • Configured and maintained desktop computers and peripherals, ensuring smooth operation
  • Set up networking environments and handled daily technical support activities for desktop support
  • Tested computers to verify proper system functionality and troubleshoot issues
  • Maintained devices like printers, resolving any related problems promptly

Hardware Networking Faculty

The George Telegraph Training Institute (GTTI)
07.2002 - 09.2003
  • Worked as a faculty member, responsible for teaching theory and practical classes in Basic Electronics, Hardware, Networking, and Linux

Education

MCA -

Allahabad University
01.2008

3years Bachelor Degree - Tourism and Travel Management

University of Calcutta
01.1998

XIIth -

Bengali / Bangla
01.1995

Xth -

Bengali / Bangla
01.1992

Skills

  • ISO/IEC 27001:2022 Compliance & Audits
  • Cybersecurity Strategy & Governance
  • IT Infrastructure & ERP Management (GINESYS ERP)
  • Microsoft 365 Administration
  • Cloud Security (Azure, AWS)
  • VAPT (Burp Suite, OWASP ZAP, Nessus)
  • Firewall, EDR, DLP Implementation
  • Incident Response & Threat Hunting
  • IT Team Leadership & Vendor Management
  • VMware Virtualization & Server Management
  • Web Server & Network Administration
  • Information Risk Management

Certification

  • Certified Ethical Hacker (CEH)
    Certified Information Systems Auditor (CISA)
    ISO/IEC 27001 - Dynamics of Information Security Management System (ISMS)
    Fortinet Certified in Associate in Cybersecurity
    Cyber Threat Intelligence
    Certified Dark Web, Anonymity, and Cryptocurrency
    AWS Security, Identity, and Compliance
    ISO/IEC 20000 IT SERVICE MANAGEMENT ASSOCIATE
    Microsoft Certified Systems Engineer: Windows Server (MCSE)
    CISCO Ethical Hacker
    FortiSIEM 7.2 Analyst

Social Link

https://www.linkedin.com/in/tamal-sarkar-a3185620

Total Work Experience

18 Years 0 Month

Timeline

IT Operations Manager

Vedant Fashions Limited - Manyavar-Mohey
03.2025 - Current

IT Manager

Shyam Steel Industries Ltd.
04.2019 - 03.2025

IT Infrastructure Lead

Indus Net Technologies
08.2015 - 04.2019

Technology Specialist

Advance Technology Labs
05.2013 - 07.2015

System Administrator

RN Education Pvt. Ltd.
04.2011 - 04.2013

System administrator and Technical Trainer

karROX Technologies Ltd.
04.2010 - 03.2011

Sr. Faculty-cum-Hardware Engineer

CMC Computer Education
04.2008 - 04.2010

System Administrator

RC Infosolutions Pvt. Ltd.
12.2005 - 03.2008

Hardware & Network Engineer

Bhumi solutions Pvt. Ltd.
12.2003 - 12.2005

Hardware Networking Faculty

The George Telegraph Training Institute (GTTI)
07.2002 - 09.2003

3years Bachelor Degree - Tourism and Travel Management

University of Calcutta

XIIth -

Bengali / Bangla

Xth -

Bengali / Bangla

MCA -

Allahabad University

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Tamal Sarkar