Network Security Subject Matter Expert (Mumbai)

About Us Join us at Orange Business We are a network and digital integrator that understands the entire value chain of the digital world, freeing our customers to focus on the strategic initiatives that shape their business. Every day, you will collaborate with a team dedicated to providing consistent, sustainable global solutions, no matter where our customers operate. With over 30,000 employees across Asia, the Americas, Africa, and Europe, we offer a dynamic workplace to develop and perfect your skills in a field filled with exciting challenges and opportunities. About The Role Job Summary We are looking for an experienced Subject Matter Expert Multi OEM responsible for advanced deployment, troubleshooting, design validation, and escalation handling of enterprise security infrastructure across multiple OEM platforms. The role requires deep technical expertise in next-generation firewalls, VPN technologies, threat prevention systems, and network security architecture. The engineer will act as the highest technical escalation point (L3) for security incidents, complex changes, and infrastructure issues while supporting SOC, L1/L2 teams, and service delivery stakeholders. Key Responsibilities - Deploy, configure, and support Zscaler ZIA/ZPA, SASE architecture, firewalls (Palo Alto/CP or other OEMs), VPNs, and OT security (IEC 62443 segmentation). - Manage Claroty xDome Secure Access, threat monitoring, incident response, and compliance audits. - Integrate tools (SIEM, IAM), automate policies, and conduct vulnerability assessments for IT/OT convergence. - Act as L3 escalation point for complex network security incidents and troubleshooting. - Perform advanced configuration, tuning, and optimization of enterprise firewall infrastructure. - Configure, troubleshoot and manage VPN tunnels (IPsec / SSL VPN) on enterprise firewalls such as Check Point Security Gateway, Fortinet FortiGate, Cisco ASA, Cisco FTD and Palo Alto Networks PAN-OS. - Manage complex network .