Senior Network Engineer (SD-WAN)-L2

NTT Limited; Bengaluru; On-site; INR 1,200,000 - 2,000,000; Full time

Job summary

NTT DATA in India (Mangalore office) seeks an experienced Senior Network Engineer to maintain and optimize client IT infrastructure. You will monitor, troubleshoot, and resolve incidents, lead second‑line support, and drive automation initiatives with the CoE.

The role involves working in rotational shifts and collaborating with multiple teams to ensure high service levels. Ideal candidates bring strong TCP/IP, BGP/OSPF knowledge, CCNA training, and hands‑on experience with FortiGate, Palo Alto,

Qualifications

• Minimum 5 years of networking experience with Tier‑2/3 responsibilities.
• Hands‑on experience with routing, switching, and firewall management.
• Experience in SD‑WAN deployments and vendor solutions is essential.

Responsibilities

• Configure, manage, and troubleshoot enterprise network infrastructure.
• Handle Routing & Switching operations across LAN/WAN environments.
• Deploy, configure, and troubleshoot SD‑WAN solutions.
• Manage and support firewall environments including policy creation and security enforcement.
• Monitor network performance and ensure high availability of services.
• Perform incident troubleshooting and root cause analysis within SLAs.
• Coordinate with internal teams and vendors for escalations.
• Document network configurations and operational procedures.

Skills

Routing & Switching

SD‑WAN

FortiGate Firewall

Palo Alto Firewall

CCNA Trained

Aruba Wireless

TCP/IP & BGP/OSPF

Network Security

Education

Bachelor's degree or Diploma in Computer Science/IT

Tools

Aruba Switches

Fortinet FortiGate SD‑WAN

Versa/Cisco SD‑WAN (good to have)

Job description

Make an impact with NTT DATA

Join a company that is pushing the boundaries of what is possible. We are renowned for our technical excellence and leading innovations, and for making a difference to our clients and society. Our workplace embraces diversity and inclusion – it’s a place where you can grow, belong and thrive.

Your day at NTT DATA

As a Senior Network Engineer - (L2) at NTT DATA, you'll take on a developing engineering role where your main goal is to ensure our clients' IT infrastructure and systems remain operational. You'll achieve this by proactively monitoring, identifying, investigating, and resolving technical incidents and problems. You'll work closely with our clients and internal teams to ensure that services are restored swiftly, in line with our service level agreements (SLAs). Your day will revolve around reviewing client requests and tickets, applying your technical expertise to resolve them efficiently and effectively. You'll be the go‑to person for second‑line support, handling incidents and requests of medium complexity. In addition to your daily tasks, you'll have opportunities to contribute to exciting project work from time to time. You'll proactively monitor work queues, execute operational tasks, and update tickets with the actions you've taken. Identifying, analysing, and logging issues before they escape will be a key part of your role. You'll communicate with other teams and clients to provide support and ensure that changes are executed with clear risk identification and mitigation plans. As part of the shift handover process, you'll highlight key tickets and upcoming critical tasks for the next shift. When needed, you'll escalate tickets to ensure the right focus from our Centres of Excellence (CoE) and other teams. Collaborating with our automation teams, you'll work on optimizing efforts and automating routine tasks, all while coaching our Service desk and L1 teams in both technical and behavioural skills. You'll also establish monitoring for client infrastructure, leading and managing initial client escalations for operational issues. Contributing to the change management process, you'll log change requests, execute approved maintenance activities, and audit incident and request tickets for quality. Your insights will drive trend analysis reports, identifying tasks suitable for automation to reduce tickets and optimize efforts. You might also support disaster recovery functions and other related tasks as needed.

Key Responsibilities

• Configure, manage, and troubleshoot enterprise network infrastructure.


• Handle Routing & Switching operations across LAN/WAN environments.


• Deploy, configure, and troubleshoot SD‑WAN solutions.


• Manage and support firewall environments including policy creation, troubleshooting, and security enforcement.


• Monitor network performance and ensure high availability of network services.


• Perform incident troubleshooting, root cause analysis, and issue resolution within SLA timelines.


• Coordinate with internal teams and vendors for network‑related escalations.


• Maintain network documentation and operational procedures.


• Participate in rotational shifts for continuous network support.

Mandatory Skills

• Strong hands‑on experience in Routing & Switching configuration and troubleshooting.


• Minimum 3+ years of relevant experience in SD‑WAN.


• Hands‑on experience with HPE SD‑WAN (Silver peak )solutions.


• Hands‑on experience with FortiGate Firewall or Palo Alto Firewall.


• CCNA Trained.


• Hands‑on experience with Aruba Wireless Solutions


• Minimum 5 years of overall networking experience.


• Strong knowledge of TCP/IP, VLANs, VPNs, BGP, OSPF, STP, and network security concepts.


• Excellent troubleshooting and analytical skills.


• Excellent verbal and written communication skill

Good to Have

• Experience with Fortinet SD‑WAN, Versa SD‑WAN, or Cisco SD‑WAN, Viptela, Meraki CCNA Certified.


• Experience managing and configuring Aruba Switches.


• Exposure to enterprise network monitoring and management tools

Desired Candidate Profile

• Bachelor's degree or Diploma in Computer Science, Information Technology, Electronics, Telecommunications, or a related field.


• Ability to work independently in a fast‑paced environment.


• Strong customer and stakeholder management skills.


• Excellent communication and collaboration abilities.


• Willingness to work from the Mangalore office and in rotational shift

Workplace type: On‑site Working

Willingness to work from the Mangalore office and in rotational shift

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 70 countries. We also offer clients access to a robust ecosystem of innovation centers as well as established and start‑up partners. NTT DATA is part of NTT Group, which invests over $3 billion each year in R&D.

Equal Opportunity Employer

NTT DATA is proud to be an Equal Opportunity Employer with a global culture that embraces diversity. We are committed to providing an environment free of unfair discrimination and harassment. We do not discriminate based on age, race, colour, gender, sexual orientation, religion, nationality, disability, pregnancy, marital status, veteran status, or any other protected category.

Join our growing global team

Is innovation part of your DNA? Do you want to enable a connected future for people, organizations, and society? Join our growing global NTT family and you’ll be part of the world’s largest ICT company (by revenue). We’ve combined the capabilities of 28 remarkable companies to become one, leading technology services provider. Together, we help our people, clients, and communities do great things with technology to create a more secure and connected future. We employ 40,000 people across 57 countries. By bringing together the world’s best technology companies and emerging innovators, we work together to deliver sustainable outcomes to businesses and the world. Innovation is part of our DNA. We believe it’s key to what makes us different. So, we strive to move forward, challenge the status quo, and drive excellence through the technologies we integrate and the services we deliver around the world. The result is connected cities, connected factories, connected healthcare, connected agriculture, connected conservation, connected mobility, and connected sport. Together we enable the connected future. You’ll be joining a global employer that is committed to attracting, growing and keeping the best talent. A place where you will be at the heart of our success!