Senior Network Engineer (SD-WAN)-L2

NTT DATA BUSINESS SOLUTIONS; Mumbai; On-site; INR 1,200,000 - 2,000,000; Full time

Job summary

NTT DATA is seeking a Senior Network Engineer (L2) to join our Mumbai on-site team. You will monitor, diagnose, and resolve incidents, act as the second line of support, and contribute to project work as needed.

The role focuses on efficient problem resolution within SLAs and close collaboration with clients and internal teams. You will handle routing/switching, SD-WAN deployments, and firewall management, while guiding L1 teams and optimizing processes with the CoE.

Qualifications

• Bachelor's or Diploma in CS/IT/EC/telecom or related field.
• 5+ years of overall networking experience.
• CCNA-trained or certified preferred.

Responsibilities

• Configure, manage, and troubleshoot enterprise network infrastructure.
• Handle Routing Switching operations across LAN/WAN environments.
• Deploy, configure, and troubleshoot SD-WAN solutions.
• Manage firewall environments including policy creation and security enforcement.
• Monitor network performance and ensure high availability of services.
• Troubleshoot incidents, perform root cause analysis, and resolve issues within SLA.
• Coordinate with internal teams and vendors for escalations.
• Maintain network documentation and procedures.
• Participate in rotational shifts for continuous network support.

Skills

Routing & Switching

SD-WAN (3+ yrs)

HPE SD-WAN

FortiGate / Palo Alto Firewall

CCNA trained

Aruba Wireless

Total networking exp 5+ yrs

TCP/IP, VLANs, VPNs, BGP, OSPF, STP

Troubleshooting & analytics

Verbal & written communication

Education

Bachelor's or Diploma in CS/IT/EC/Telecom

Tools

HPE SD-WAN

FortiGate Firewall

Palo Alto Firewall

Aruba Wireless

Aruba Switches

Job description

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 elevate 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 elevate 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