Subrat Patnaik
Senior Network Consultant
Bangalore
Summary
Senior Network Consultant with 12+ years of experience in enterprise networking, SD-WAN, data center, and high-availability infrastructure using BGP, OSPF, IPsec, Cisco Nexus, and Cisco ACI.
Skilled in multi-cloud networking with Aviatrix and network automation using Terraform and REST APIs.
Overview
13
13
years of professional experience
3
3
Certifications
Work History
Senior Network Consultant
Optum
Bangalore
02.2018 - Current
- Lead enterprise routing and switching operations using BGP, OSPF, VLANs, HSRP, VRRP, LACP, and IPsec VPNs across WAN and Data Center environments.
- Handle Cisco Nexus Data Center infrastructure, including upgrades, IOS lifecycle management, backup, and restore.
- Support and manage SD-WAN environments for branch and data center connectivity, with high availability and performance optimization.
- Work closely with Cisco TAC, ISP carriers, and internal architecture teams to resolve complex P1/P2 outages.
- Own 24/7 production network operations with onshore coordination and strict SLA adherence.
- Drive network security operations involving IPsec tunnels, segmentation, and secure enterprise access models.
- Perform change validation, CAB approvals, and high-risk production deployments.
- Use ServiceNow, Rally, and monitoring tools for incident, change, and project tracking.
- Handle multi-cloud networking on hybrid connectivity models via Aviatrix.
- Actively working toward network automation using Terraform (infrastructure as code) and REST APIs.
- Exploring N8N Workflows, AI Agents for automated incident handling, smart monitoring, and predictive fault detection.
- Troubleshooting using deep packet analysis with Wireshark for latency, drops, and protocol issues.
- Analyzed client requirements and provided tailored recommendations for network upgrades and improvements.
Senior Infrastructure Engineer
Mphasis
08.2015 - 02.2018
- Proactive network monitoring using SolarWinds to detect and prevent outages before they impact users.
- First-level troubleshooting of: Wired network issues, Wi-Fi connectivity problems, and end-user client network issues.
- Coordinated with different operations teams (network, server, security) to ensure fast and accurate issue resolution.
- Provided incident ownership and follow-up until full service restoration.
- Supported daily operational tasks in a 24/7 production support environment.
Associate Network Engineer
Dimension Data
09.2014 - 08.2015
- Took ownership of change requests and incidents, including basic root cause analysis. Resume.
- Coordinated with service providers and Cisco TAC for ongoing troubleshooting cases.
- Provided first-level network support, including: enabling network points on switches, local LAN and client connectivity issues, and VPN connectivity using a VPN client.
Systems Engineer
Hewlett Packard, HP
03.2013 - 09.2014
- Troubleshoot network issues related to changes, and provide day-to-day operational support as part of the Global Network Operations Center (GNOC/NMC).
- Provided day-to-day network operations support, handling incidents related to routing, switching, and connectivity issues.
- Performed packet-level troubleshooting using Wireshark to identify latency, drops, and protocol issues.
- Created clear documentation, bug reports, and problem reports with strong written and verbal communication.
- Installation, troubleshooting, and managing of print servers and network printers.
Education
B. Tech - Computer Science
Raajdhani Engineering College
Bhubaneswar 04.2001 -
Skills
Core Networking Skills
Certification
CCNA
Additional Information
I hereby declare that all the particulars furnished above are true to the best of my knowledge and belief.
Timeline
Senior Network Consultant
Optum
02.2018 - Current
CCNA
01-2018
Senior Infrastructure Engineer
Mphasis
08.2015 - 02.2018
Associate Network Engineer
Dimension Data
09.2014 - 08.2015
Systems Engineer
Hewlett Packard, HP
03.2013 - 09.2014
B. Tech - Computer Science
Raajdhani Engineering College
04.2001 -