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Ashish Sharma

@ashishsharma25

Senior Network Specialist at Fiserv India supporting Fiserv Australia Data Centers and the NPP real-time payments infrastructure.

India
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At Fiserv India, I supported Fiserv Australia Data Centers and the NPP real-time payments infrastructure for banking environments. I configured and troubleshot Cisco routers and switches, firewalls, VPN tunnels, and dynamic routing.

I planned and executed two Data Center hardware refresh initiatives with zero critical business disruption, and supported network-domain PCI audits that cleared for five consecutive years. My earlier work included network support for a Government infrastructure project at HCL Infosystems and 4G Core Network deployment at Cisco.

Experience

Work history, roles, and key accomplishments

Fiserv India logoFI

Senior Network Specialist

Dec 2016 - Sep 2026 (9 years 9 months)

Managed 24x7 network operations for Fiserv Australia Data Centers, supporting mission-critical banking infrastructure and the NPP real-time payments platform. Led L3/L4 troubleshooting, incident management, vendor TAC escalations, and infrastructure modernization with zero critical disruption.

HI

Professional Engineer – UIDAI Project

HCL Infosystems

Dec 2015 - Nov 2016 (11 months)

Provided 24x7 network support for a large-scale Government infrastructure project, configuring and troubleshooting OSPF and BGP in a Data Center environment. Implemented VRF, VPC, and Layer 3 VLAN architecture, and managed configuration backups, IP management, and network monitoring.

Cisco logoCI

L2 Network Support Engineer – RJIL 4G Project

Jul 2014 - Dec 2015 (1 year 5 months)

Provided L2 network support for 4G Core Network deployment, configuring and troubleshooting BGP, IS-IS, and MPLS. Performed IOS upgrades, router provisioning, and core network support, and coordinated with transport, fiber, and infrastructure teams for intercity and interstate core links.

Ericsson logoER

OMCR Engineer

Oct 2013 - Jun 2014 (8 months)

Supported Cisco router and switch implementation in a NOC environment, implementing VLANs and supporting DHCP/DNS configuration. Performed network monitoring and performance maintenance.

Education

Degrees, certifications, and relevant coursework

PU

PTU University

B.Tech, Computer Science Engineering

Completed a Bachelor of Technology in Computer Science Engineering.

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