Lead Infra. Architect

Cognizant

5 - 10 years

Chennai

Posted: 3/30/2025

Job Description



Job Summary

CIS Lead Network Architect

Profile Summary

Expertise in Design/Operations/Maintenance of Telecommunication/Networking and security systems. Result-oriented quality-driven business-savvy professional with broad IT exposure technologically-advanced IT/networking solutions to meet challenging multinational business demands.


Responsibilities

Total Years Of Professional Experience

14 + years of experience

Roles and Responsibilities

Conduct network architecture design feasibility and cost studies

Support the sales team on RFP RFI RFS

Design analyze plan and modify network components supporting customer communication implementation activities

Propose and implement system enhancements software and hardware updates that will improve the performance and reliability of the system

Plan design and implement networked systems including configurations and supports troubleshoots network problems

Develop and evaluate network performance criteria and measurement methods

Prepare the analysis of the capacity needs for network infrastructure

Build technical capabilities on next gen technologies

Survey network requirements of remote customer offices campus buildings and Data Centers.

Configure routing protocols such as EIGRP OSPF IS IS and BGP complex switch networks built on vPC VXLAN BGP EVPN OTV ACI VMware NSX configurations

Design Implementation and troubleshoot Cisco Viptela SDWAN solutions

Prepare network equipment for deployment by loading appropriate software and configuration setting according to design templates.

Continually review the customers network and practices looking for opportunities to enhance network functionality performance and reliability.

Assist in the evaluation of potential network products or technical solutions.

Contribute to the development of network documentation including diagrams standards specifications and operating procedures.

Monitor for opportunities to enhance the customer network system performance or reliability.

Provide third-level support and troubleshooting of network problems. Periodically provide after-hours and weekend support.

Technical Skills

Mandatory

  • SDDN Technologies (One or more): Cisco ACI Multi-POD Multi-Site and VMware NSX-T
  • SDWAN Technologies (One or more): Cisco Catalyst (Viptela) SD-WAN Cisco Meraki SD-WAN HPE Aruba Edge Connect SD-WAN (Silverpeak) Palo Alto SD-WAN
  • SDA Technologies One or more): Cisco Catalyst Center (DNA) Juniper MIST Aruba SD-Branch
  • Wireless: Cisco Catalyst Cisco Meraki and Aruba wireless architecture
  • Load Balancers : F5 LTM F5 GTM/DNS Citrix Netscalar ADC Radware Alteon ADC
  • WAN Optimizers : Riverbed Steelhead
  • Tools : Cisco Prime Solarwinds Wireshark iperf/jperf
  • Security: Cisco Firepower firewalls and Palo Alto Firewalls
  • Routing Protocols : EIGRP OSPF IS-IS and BGP
  • Switch technologies : STP RSTP MST vPC
  • DCI technologies: VXLAN OTV LISP BGP EVPN
  • Switch Series (Cisco): Nexus 9K 7K 5K 3K and 2K
  • Router Series (Cisco): ISR 1K 2K 3K 4K ASR 1K Catalyst 8200/8300/8500 Catalyst 8KV series
  • A solid understanding of network services concepts such as SNMP/SYSLOG/NTP/DHCP/DNS and security concepts in authentication encryption AAA TACACS/RADIUS and LDAP

    Work experience on Juniper HPE and Arista Products

    Knowledge on VMware and Hyper-V

  • Programming / Automation Skills: Ansible Terraform and Python
  • Proficiency in all Microsoft Office applications are essential to include Visio Excel and PowerPoint.

    Must possess both excellent oral and written communication skills.

    Must have the ability to manage time efficiently and a demonstrated ability to lead multiple projects with minimal supervision.

    Must be highly organized and detailed oriented.


    Certifications Required

    CCIE R&S or CCIE Datacenter Certified Preferred

    About Company

    Cognizant is a global leader in technology and consulting services, helping businesses transform their operations through digital solutions. Specializing in IT services, including software development, business process outsourcing, and consulting, Cognizant supports clients across industries such as healthcare, financial services, manufacturing, and retail. With a focus on innovation, Cognizant assists organizations in modernizing their technology, improving operational efficiency, and enhancing customer experiences. Headquartered in the U.S., it is consistently ranked among the most admired companies in the world and is a member of the NASDAQ-100.

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