Safiullah Ansari

About Safiullah Ansari

A seasoned Senior Network Engineer with over 10 years of experience, currently working at Wells Fargo, specializing in data center network operations and infrastructure support. Proven expertise in managing high-availability environments, supporting global financial clients, and driving network reliability through proactive monitoring and incident resolution.•Leading the design and implementation of data center network solutions, including Arista spine-leaf architectures, VXLAN/EVPN overlays, and Cisco Nexus-based core and aggregation layers.•Leading greenfield deployments, hardware refreshes, and seamless migrations with zero downtime.•Delivered technical leadership in multi-vendor environments, integrating Cisco, Arista, Juniper, Ceragon, and Ericsson platforms to meet enterprise-grade performance and reliability standards.•Conducted site-to-site IPsec VPN deployments, enabling secure connectivity between data centers and remote edge locations.•Transitioned routing protocols from legacy systems (RIP, EIGRP) to scalable BGP-based architectures, improving routing efficiency and network convergence.•Provided L2/L3 support for investigative and fault management activities, including fiber and microwave transmission systems.•Maintained compliance and audit readiness through detailed documentation of network architecture, change logs, and configuration backups.•Perform complex maintenance and provide network support for financial clients around the globe in the areas of Cisco embedded WAN services.•Fetching & sharing the requested bandwidth utilization reports/graphs using Vision Matrix for identifying Overutilization/Packet loss during troubleshooting or to recommend circuit upgrade.•Raising network changes whenever there is any issue at the Datacenters and fixing the issue by coordinating with Citi owned or Co-location datacenter engineers around the globe.•Identifying issues with BFD and upgrading the same to fix the issue.•Verifying QoS and upgrading bandwidth when overutilization is identified.•Worked on major networking incidents (Multi-Outages/Hot Topics) and assured resolution within specified service level agreement (SLA).•Route cause analysis (RCA) of network issues•Perform WAN troubleshooting.•LAN troubleshooting (port errors, duplex, VLAN, Link status etc.)•Initiate TRT and PIR calls during the multi-outage case.•Tools & Platforms: ServiceNow, Service Cloud, Vision Matrix, Compass Alarm Monitoring, Wireshark, Run deck, Netcool, Full Picture, Jira, Net info, HPSM, NSDR Portal, Brunhilda, DM Calendar, HPNA, DNS, and more.

Experience

1. Senior Network Engineer

   Wells Fargo

   Sep 2024 — Present · Hyderabad, IN

   A seasoned Senior Network Engineer with over 10 years of experience, currently working at Wells Fargo, specializing in data center network operations and infrastructure support. Proven expertise in managing high-availability environments, supporting global financial clients, and driving network reliability through proactive monitoring and incident resolution.• Leading the design and implementation of data center network solutions, including Arista spine-leaf architectures, VXLAN/EVPN overlays, and Cisco Nexus-based core and aggregation layers.• Leading greenfield deployments, hardware refreshes, and seamless migrations with zero downtime.• Delivered technical leadership in multi-vendor environments, integrating Cisco, Arista, Juniper, Ceragon, and Ericsson platforms to meet enterprise-grade performance and reliability standards.• Tools & Platforms: ServiceNow, Service Cloud, Vision Matrix, Compass Alarm Monitoring, Wireshark, Run deck, Netcool, Full Picture, Jira, Net info, HPSM, NSDR Portal, Brunhilda, DM Calendar, HPNA, DNS, and more.

Education

• Diploma in electronics and communication engineering.

  Bachelor's degree

  2011 — 2014

• Al kabir polytechnic College Jamshedpur

  Diploma

  2011 — 2014

• Kolhan University, Chaibasa

  Bachelor of Technology - BTech

  2013 — 2017

• Pnkn high school keliasole.

  Matriculation

  2010 — 2011

• Kolhan University Chaibasa

  B-tech in Electronics and communication engineering

  2013 — 2017