Krishnamohan Cherikkathara

Cloud Migration & Hybrid Infrastructure: Spearheaded the Remote Hosted (RHO) customer integration, migrating legacy
Cerner hosted networks into Oracle Cloud Infrastructure (OCI).
Architected hybrid cloud connectivity using OCI FastConnect, VPNs, and dynamic BGP routing to ensure scalable,
low-latency application growth. Worked on VCN Creation, Security List & NSG modification, URL filtering. Engineered
customer-to-region routing and security list implementations across multiple global OCI regions.
Global Network Operations: Managed and supported complex legacy Cisco data center networks across four continents
(UK, EMEA, Canada, and Australia). Implemented robust WAN connectivity solutions for global customers via leased lines
and encrypted site-to-site VPN tunnels.
Incident Response & Leadership: Stabilized critical healthcare environments by leading the recovery of major outages,
ensuring 24/7 connectivity for life-saving medical systems.

Infrastructure Management: Orchestrated network configurations across 7 global data centers, managing high-availability
environments for over 500 enterprise clients.
ITIL Framework Excellence: Expertly navigated the full ITIL lifecycle, including Incident, Change, and Configuration
Management, ensuring 100% compliance with rigorous documentation and company policies.
Global Client Relations: Served as one of the technical point of contact for 300+ US and international clients, facilitating
secure access and connectivity to Cerners remote hosted DCs. Vendor &
ISP Coordination: Managed critical WAN infrastructure by liaising with global ISPs (AT&T, Sprint, Verizon) to troubleshoot
and resolve circuit failures, minimizing downtime for remote-hosted services.
Technical Deployments: Spearheaded the configuration and deployment of Cisco Routers, Switches, Firewalls, and Load
Balancers. Expertise includes implementing ACLs, NAT, MPLS, and managing Blue Coat proxies.

Architected and configured routing, switching, and firewall policies across global datacenters
in the UK, France, UAE, Canada, Australia, and Sweden, ensuring 99.99% uptime for healthcare-grade environments.
Enterprise Security: Engineered and maintained complex IPsec VPN tunnels using Cisco ASA and Palo Alto platforms to
facilitate secure, encrypted communication between 500+ client sites and Cerner hosted environments.
Data Center Operations: Managed full-lifecycle deployments, including the physical racking, cabling, and provisioning of
Cisco Nexus, ISR and ASR series hardware in high-density DC environments.
Migration & Optimization: Spearheaded global Tech Refreshes, leading the seamless migration of legacy hardware to the
latest Cisco models and upgrading F5 and NetScaler load balancer fleets with zero downtime.
Operational Excellence: Directed Incident, Change, and Configuration Management workflows via Jira and Remedy,
resolving critical Tier-3 network outages for a global client base.
Global Client Liaison: Acted as the primary technical point of contact for Middle Eastern and European clients,
troubleshooting complex cross-border connectivity issues and optimizing network access.

Network Management & Maintenance: Orchestrated the stability of a large-scale enterprise LAN supporting 3, 000+ users,
managing a high-density environment of 60+ Cisco routers and switches.
Global Connectivity & Collaboration: Spearheaded the management of international Video Conferencing (VC) suites,
ensuring seamless low-latency connectivity between global client sites.
Vendor Management: Acted as the primary technical lead for WAN/Internet circuit outages, coordinating with Tier-1 ISPs
like BT and Bharti Airtel to meet strict Service Level Agreements (SLAs).
Proactive Monitoring: Utilized enterprise-grade monitoring tools.