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Tapan Ghetiya

@tapanghetiya

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Cybersecurity Manager specializing in IT/OT network security, Zero Trust, and IEC 62443-aligned assessments.

India

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What I'm looking for

I’m looking for a role where I can own IT/OT security architecture—firewalls, Zero Trust, NAC, and IEC 62443-aligned OT assessments—partnering with CISOs and leadership to deliver measurable roadmaps, secure integrations, and resilient incident response.

I’m a cybersecurity leader with 11+ years in network and security, managing IT and OT security architecture across critical infrastructure. I focus on turning security strategy into practical designs—firewalls, segmentation, NAC policies, and governance—that business leaders can execute.

At Adani Enterprises, I oversee network and security architecture for cement, energy, airports, seaports, and power plants. I drove M&A network security integration for an acquired cement plant, including firewall handover, IP schema conflict resolution, VPN migration, and secure connectivity to the corporate network.

I also strengthened operational security through platform rollout and automation. I rolled out AlgoSec for firewall policy management and TACACS+ for centralized administration across 1000+ devices, improving policy governance and making audit preparation significantly easier, while automating 80% of L1 tasks.

I deliver IEC 62443-aligned security assessments for OT environments—reviewing firewall policies, IT/OT boundary controls, and segmentation, then producing risk findings and roadmaps for CISOs. I’m comfortable spanning enterprise and industrial networks, have handled vendor and stakeholder engagement across cross-functional projects, and I’m currently pursuing IEC 62443 Foundation certification.

Experience

Work history, roles, and key accomplishments

Current

Cybersecurity Manager

Current

Adani Enterprise Ltd

Nov 2023 - Present (2 years 7 months)

Oversee IT/OT network security architecture, including firewall design, IT/OT segmentation, NAC policy, and IEC 62443-aligned assessments across critical infrastructure. Drove M&A network security integration, rolled out AlgoSec for firewall policy governance and TACACS+ for centralized device administration across 1000+ devices, and resolved Priority 1 incidents within a 4-hour SLA for 95% of cas

Firewall Administration AlgoSec Policy Management TACACS+ Centralized Administration Zero Trust Security Governance OT ICS Risk Assessments

Senior IT System Engineer

Citrix R&D Pvt. Ltd

Sep 2021 - Nov 2023 (2 years 2 months)

Implemented IT/OT network segregation for data center environments using strict zone boundaries, firewall policy design, and VLAN-based access controls. Led a global Cisco ISE NAC rollout (12-node) with posture assessment and micro-segmentation, and orchestrated on-prem to Meraki cloud-managed network migration to improve visibility and reduce maintenance overhead.

NAC Posture Assessment Cisco Meraki Cloud Migration

Senior Network & Security Engineer

NTT Global Networks

Dec 2019 - Sep 2021 (1 year 9 months)

Deployed Cisco ISE-based 802.1x wired and wireless authentication across PAN India branches and NOC locations, integrating with Aruba WLC. Executed ISE 2.6 distributed deployment (8-node with load balancer) for PSN services and implemented 2FA for data center device administration using AD + OTP with custom endpoint profiling for unknown devices.

ISE 2.6 Distributed Deployment Load Balancing PSN Services AD + OTP

Security Analyst L2

Paladion Networks Pvt. Ltd

May 2019 - Nov 2019 (6 months)

Analyzed security event data from network and industrial system logs and generated incident response reports according to established SOPs.

Incident Response Log Analysis Network Security Monitoring Industrial Systems Logs Review SOP Based Reporting

Senior Network Security Engineer

Meridian Infotech Ltd

Aug 2016 - Apr 2019 (2 years 8 months)

Delivered IT/OT network segregation projects for industrial and enterprise customers by designing firewall policies, zone-based segmentation, and access controls to isolate OT from corporate IT networks.

Firewall Policy Design Network Boundary Security Access Control Network Security Engineering