Network Engineering Advisor

Req ID: 371022

NTT DATA strives to hire exceptional, innovative and passionate individuals who want to grow with us. If you want to be part of an inclusive, adaptable, and forward-thinking organization, apply now.

We are currently seeking a Network Engineering Advisor to join our team in Chennai, Tamil Nādu (IN-TN), India (IN).

Role Overview:

We are seeking an experienced Network Engineer with strong expertise in Cisco-based routing and switching. The role involves designing, implementing, and supporting large-scale enterprise networks with a focus on stability, performance, and security.

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Key Responsibilities:

Design and implement enterprise network solutions using Cisco routers and switches
Configure and troubleshoot Layer 2 & Layer 3 technologies
Manage and support LAN, WAN, and campus networks
Perform advanced troubleshooting for network outages, latency, and packet loss
Work on routing protocols such as OSPF, BGP, and EIGRP
Configure switching technologies including VLANs, STP (RSTP/MST), EtherChannel
Implement and maintain network security controls (ACLs, port security)
Support incident, problem, and change management activities
Monitor network performance and ensure high availability
Maintain network documentation and diagrams

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Required Technical Skills:

Strong hands-on experience with Cisco Systems devices (routers & switches)
Deep understanding of:
TCP/IP, subnetting, routing concepts
Layer 2 protocols (STP, VLANs, trunking)
Layer 3 protocols (OSPF, BGP, EIGRP)
Experience with:
NAT, DHCP, DNS basics
WAN technologies (MPLS, leased lines)
Strong troubleshooting skills using CLI and tools like ping, traceroute

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Preferred Skills:

Basic knowledge of network automation (Python/Ansible)
Exposure to networking technologies
Understanding of high availability (HSRP, VRRP, GLBP)

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Certifications (Preferred):

CCNA (minimum)
CCNP Enterprise (preferred)
CCIE Enterprise Infrastructure (advantage)

About NTT DATA

NTT DATA is a $30 billion business and technology services leader, serving 75% of the Fortune Global 100. We are committed to accelerating client success and positively impacting society through responsible innovation. We are one of the world's leading AI and digital infrastructure providers, with unmatched capabilities in enterprise-scale AI, cloud, security, connectivity, data centers and application services. our consulting and Industry solutions help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have experts in more than 50 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start-up partners. NTT DATA is a part of NTT Group, which invests over $3 billion each year in R&D.

Whenever possible, we hire locally to NTT DATA offices or client sites. This ensures we can provide timely and effective support tailored to each client’s needs. While many positions offer remote or hybrid work options, these arrangements are subject to change based on client requirements. For employees near an NTT DATA office or client site, in-office attendance may be required for meetings or events, depending on business needs. At NTT DATA, we are committed to staying flexible and meeting the evolving needs of both our clients and employees. NTT DATA recruiters will never ask for payment or banking information and will only use @nttdata.com and @talent.nttdataservices.com email addresses. If you are requested to provide payment or disclose banking information, please submit a contact us form,

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