Arun Chauhan

At TUV Rheinland Middle East supporting OQ Gas Networks, I lead OT cybersecurity across 30+ critical infrastructure sites, including pipeline stations, a gas dispatching center, and a backup site. I govern risk, compliance, and security architecture for SCADA, DCS, PLC, and SIS environments.

I architected IEC 62443-based zero-trust segmentation, deployed Nozomi Guardian and OT SIEM visibility for 10,000+ assets, and reduced MTTD to under 15 minutes. I also established an OT CSMS, policy framework, risk-register process, and audit-ready compliance program.

Previously, I led OT security and incident-response work at ProArch, built cybersecurity solutions for Vestas wind-power products, and improved maturity and vulnerability remediation across Tetra Pak manufacturing sites. My work spans industrial threat detection, tabletop exercises, vulnerability management, hardening, secure lifecycle design, and OT SOC delivery.

I bring 13+ years across IT infrastructure and industrial cybersecurity, backed by CISSP, CRISC, ISO 27001 Lead Auditor, and ISA/IEC 62443 credentials. I focus on practical security controls that protect operations while supporting engineering, regulatory, and business priorities.