Ramesh S

Senior Network Security Engineer @Con Edison

NY, US

As a Senior Network & Security Engineer at Con Edison, I lead architecture, modernization, and cybersecurity initiatives across New York City’s mission-critical utility network—spanning data centers, Azure cloud, 300+ substations, and enterprise campuses. My work ensures the reliability, security, and performance of systems powering millions of customers across NYC.Key Contributions & ImpactLead enterprise network architecture across cloud, datacenter, OT, and corporate domains, eliminating connectivity silos and improving secure access for usersDesigned and operated a high-availability IP backbone interconnecting 60+ substations and data centers, ensuring uninterrupted real-time grid telemetry and SCADA operations.Modernized legacy networks into Cisco ACI policy-driven fabrics with micro-segmentation, enhancing zero-trust posture for OT workloadsRe-engineered core routing to IS-IS underlay and BGP overlays, significantly improving convergence and minimizing outage propagationImplemented secure remote access with Cisco ISE, AnyConnect, Duo MFA, and RBAC policy automation.Integrated Palo Alto and Cisco FTD firewalls for OT/IT segmentation, energy-market interfaces, and NERC/NIST complianceBuilt automation pipelines using Python, Ansible, REST APIs (Cisco DNAC, Meraki, FortiManager), eliminating config drift and accelerating deployments.Designed resilient hybrid cloud networks using Azure ExpressRoute, VPN Gateways, vWAN, NSGs, Azure Firewall, and AWS Direct ConnectAuthored detailed HLD/LLD designs, Visio diagrams, runbooks, and zoning matrices that accelerated new-site deployments by 30%Validated next-generation routing platforms (Juniper MX, Cisco ASR) for multi-terabit scaling and future utility network expansion.Core TechnologiesCisco ACI, Nexus, Catalyst, IS-IS, BGP, OSPF, MPLS, EVPN-VXLAN, SD-WAN, Palo Alto, Cisco FTD, Azure Networking, AWS Direct Connect, NSX-T, Ansible, Python, ThousandEyes, SolarWinds, PRTG, SCADA/OT Network Segmentation.

Charles Sturt University

Master of Information Technology, Computer Systems Networking and Telecommunications

GITAM Deemed University

Bachelor of Technology