Sudhakar K

Network Engineer @Unitedhealth Group Lnc

Albany, NY, US

Worked on using data from Security Information and Event Management (SIEM) and other logging solutions to conduct analysis, identify cyber trends, disseminate relevant findings, and recommend suitable security and/or compensating controls.• Deployed Next-Generation Firewall (NGFW) solutions across UnitedHealth’s network infrastructure, enabling features such as SSL decryption, application-layer filtering, and intrusion prevention (IPS) to detect and mitigate potential threats.• Configured VDC\'s on NEXUS 7K for creating multiple logical switches and HSRP and VLAN trucking 802.1Q, VLAN Routing on Catalyst 6500 switches.• Designed and supported IT/OT network segmentation using VLANs, firewall zones, and ACLs to securely separate operational environments from enterprise IT networks.• Configured Site-to-Site VPN tunnels between azure Virtual Private Cloud (VPC) and Palo Alto Networks Next-Generation Firewall (NGFW) to securely connect on-premises data centers with cloud infrastructure.• Managed and optimized AWS VPCs, subnets, routing, and peering connections in cloud environments for efficient interconnectivity.• Configured and managed AWS VPCs, Transit Gateway, route tables, Internet Gateways, and NAT Gateways to support secure multi-region architectures.• Established eBGP peering between on-prem border routers and AWS environments, implementing route filtering, prefix-lists, and traffic engineering policies.• Configured and monitored cloud-native security tools such as AWS Security Groups, IAM policies, and GCP Firewall Rules to ensure compliance with organizational security standards.• Engineered VM-Series integration with AWS Transit Gateway (TGW) for centralized traffic inspection across multi-VPC hub-and-spoke environments.• Implemented advanced traffic steering using AWS route tables and policy-based forwarding to direct north-south and east-west traffic through Palo Alto VM-Series inspection points.