Jul 2021 – Sep 2025 · 4 yrs 2 mos · Bangalore Urban, Karnataka, India · Hybrid

• I have designed and delivered the entire enterprise Network Infra and COLO network ecosystem with many Global Exchanges like NSE/BSE/MCX in India. Detailed network documentation, including network diagrams and device configurations, were prepared for the same. OEM & ISP Vendor Management.
• Architecting design and operations for global exchanges like CME, LME, JSE, Brazil, Singapore, NSE IFSC, Turkiye, Euronext, EUREX etc.
• BGP, OSPF, STP, RSTP, PTP, NTP, PIM, and Multicast protocols are extensively used across all current projects.
• Using Products such as Arista 7130L/LB, Cisco Nexus 3548P, Catalyst, and ISR/ASR extensively in my all deployments.
• Designing and building low latency infra to support the fastest communication possible for trade packets and leverage arbitrage opportunity wherever possible.
• Managing Data Center Operations and Engineering, handling a team who is helping to fix the issues in DC/COLO.
• Basic Automation to improve operational efficiency.
• Used packet sniffers to analyze network traffic and diagnose and resolve network issues
• Monitored network performance and identified potential issues, resulting in a reduction in network downtime.
• My work directly impacts the revenue of the organization where I am bringing innovative solutions that can help reduce overall latency in the network.

Jan 2020 – Jun 2021 · 1 yr 5 mos

• Core Engineering - Global IP MPLS Network
• Taking care of DWDM Fiber Network ecosystem which connects all-US POP locations on 100G fiber.
• Working and designing ISP based GLOBAL WAN network of Walmart where all DC/Retail/International/Cloud connects.
• Extensive work experience over BGP, OSPF, L3VPN, EVPN.
• Managing connectivity to Azure/GCP PoP directly on 100Gig backbone. We are directly connecting/Peering using BGP to Azure Express Route and GCP Direct Connect. Hybrid Cloud Network Design and Delivery.
• Working on Strategic POP location networks to minimize latency and maximize availability.
• Deep Level knowledge of Azure Networking.
• SD-WAN Solution on Cisco Viptela.
• Designed and Implemented DMZ & Internet Gateways of PAN India network of Walmart.
• Built and Designed PAN India network for Stores/Retail Offices/Global Sourcing and Walmart Labs. This network was fully based on Cisco Wireless/Nexus/ASR/Catalyst platforms.
• Primary on-call role for all escalations during IDC hours for all International/US entities.
• Vendor management such as ISPs, PoP providers, Hardware Providers and Cloud Providers.
• Designing infra based on zone and availability with minimum latency and maximum throughput.

Oct 2017 – Dec 2019 · 2 yrs 2 mos

• Managing entire Walmart GeC Corporate network which includes platforms based on Cisco Routing/Switching, Wireless and Voice products.
• Designing and implementing entire IDC network and taking care of high priority incidents.
• Also working on next generation campus network based on Cisco Catalyst 9K series switches.
• Individually handling design and architecture of entire IDC and in process of making a more agile and redundant network where users can have seamless connectivity to Intranet and Internet.
• Basic Python script to automate manual jobs.
• Leading a team of 4 members which includes 2 people from server and 2 from network team.
• Managing different vendors for services and procurement such Cisco, Verizon, Century Link, Airtel, Tata and Dimension Data.
• Primary and only resource to design and deploy BGP, OSPF of GeC Enterprise network across globe for Walmart.

Nov 2015 – May 2017 · 1 yr 6 mos · Bengaluru Area, India

• Data Center and Enterprise Network's Operations and Delivery.
• Day to day activity includes network changes, and design routing environment of Core and Distribution network including managing operations and delivery when anything fails in network.
• Continuously working towards simplifying customer onboard process and minimize the human effort to provide seamless services to customer.
• Planning and implementing changes according to the customer requirement.
• Managed Routing and switching protocols on various platforms of Cisco and Juniper.
• Dealing with mainline Data Center juniper and cisco switches majorly Nexus (NX-OS) and QFX, EX, MX series and F5 LTM and GTM.

May 2014 – Nov 2015 · 1 yr 6 mos · Hyderabad Area, India

• Service Delivery/Design/Implementation and assurance on various cisco and juniper products.
• Worked as a Design, Migration and Implementation Engineer.
• Supported Operations team in troubleshooting of complex issues.
• Provided solutions to customer according to their needs.
• Preparing Implementation plan in such manner so customer will have minimum downtime during changes and migrations.
• Worked on best practices to set up a new Data Center.
• Managed Routing and switching protocols on various platforms of Cisco and Juniper.
• Dealt with mainline Data Center Nexus, EX4200 Series switches.
• Troubleshooting issues related Routing protocols and Nexus related issues.
• Managing Implementation and migration projects for various platforms of different vendors.

Apr 2011 – Dec 2013 · 2 yrs 8 mos · Bangalore Area, India

• Client : British Telecom Global Services
• Responsibility : Delivering L2/L3 network support services to more than 3000 customers world-wide.
• Handling VoIP and Data networks related issues.
• Troubleshooting and managing the issues of Call Manager, Call Manager Express and Unity Express and UC500 related problems and incidents.
• Adding and troubleshooting Extension Mobility and Hunt group features on CUCM.
• Implementing the configurations for users profile and device profile over CUCM and troubleshooting the Voice Mail related issues over Unity Express.
• Managing the Problem, incidents and change request through Remedy.
• Advising and maintaining the new systems and changes on the current system.
• Troubleshooting the layer 3 protocol’s issues like EIGRP, OSPF, RIP and other Routing Protocols and connectivity related problems.
• Troubleshooting the layer 2 protocols and WAN Technologies like Frame-Relay, ATM and ISDN.
• Troubleshooting BGP and QoS related issues.
• Troubleshooting Crypto-map, and IPSEC tunneling.
• Layer 3 MPLS VPN Connections, Configurations and Troubleshooting on edge routers.
• Troubleshooting VLAN and STP related issues.
• Troubleshooting HSRP, VRRP and GLBP related issues.
• Troubleshooting Radius, TACACS, and AAA related issues.
• Communicating to the customers for better service delivery.
• Maintaining SLA of any incident and responsible for service delivery within SLA criteria.
• SPOC of 6 sized team-member of TAC-2 team.
• Currently handles more than 3000 customers world-wide.