Data Network L2 Engineer

About Tata Consultancy Services (TCS)

TCS is a global leader in IT services, consulting, and business solutions with over 50 years of experience supporting major enterprises worldwide. Part of the Tata Group, TCS employs over 616,171 professionals spanning 157 nationalities across 53 countries. TCS leverages its Location Independent Agile™ delivery model to offer integrated business, technology, and engineering services.

Role Overview

We are seeking a Data Network L2 Engineer specializing in MPLS and SD-WAN technologies to be based in Doha, Qatar. This full-time position involves managing advanced network troubleshooting, incident resolution, network optimization, and vendor coordination to ensure service reliability and performance.

Key Responsibilities

• Diagnose and resolve complex network issues related to MPLS L3VPN/L2VPN failures, routing protocols like BGP, OSPF, static routes, SD-WAN overlay and underlay instability, as well as latency, jitter, and packet loss using CLI, logs, and monitoring tools.
• Take ownership of critical P1/P2 incidents escalated from the L1 team and restore services within stipulated MTTR targets; address problems such as PE/CE connectivity, VRF routing errors, tunnel failures (IPSec/SD-WAN), and QoS degradations.
• Perform detailed routing and protocol analysis including BGP peering and route propagation, OSPF neighbor and LSDB issues, MPLS label forwarding, and resolve routing anomalies like loops, flaps, and asymmetries.
• Operate and troubleshoot SD-WAN solutions (e.g., Viptela, Meraki, Fortinet), verifying edge device status, control connections, overlay tunnels, and policy or configuration inconsistencies.
• Conduct root cause analysis for major network incidents, identifying configuration errors, hardware/software faults, ISP or backhaul problems, and policy misconfigurations; propose corrective and preventive measures.
• Support network change management and implementation activities including validation of network modifications, routing updates, device upgrades, ensuring impact assessment and rollback plans are in place.
• Collaborate effectively with vendors and stakeholders such as OEMs (Cisco, Juniper, Fortinet), ISPs, and carrier providers; manage vendor escalations and TAC cases.
• Evaluate recurring incidents to drive network performance and stability enhancements, recommending improvements for routing stability, bandwidth usage, and fine-tuning SD-WAN policies.
• Provide guidance to L1 teams on troubleshooting methods; contribute to improving standard operating procedures and knowledge bases; perform quality audits on ticket handling processes.

Required Skills and Knowledge

• Expertise in MPLS (L2 and L3 VPN architectures)
• Strong working knowledge of routing protocols including BGP and OSPF
• Comprehensive understanding of TCP/IP stack and network fundamentals
• Proficiency with SD-WAN platforms such as Viptela, Meraki, and Fortinet
• Hands-on experience using CLI for troubleshooting, analyzing network logs and packets
• Familiarity with Quality of Service (QoS) and Service Level Agreement (SLA) monitoring
• Awareness of network redundancy and failover techniques

Experience and Educational Qualifications

• Between 3 to 7 years of relevant industry experience
• Bachelor's degree in Technology or Diploma in Telecom, Networking, or IT fields
• Certifications such as CCNA or CCNP are preferred
• SD-WAN specific certification is advantageous

Performance Metrics

• Reduction in mean time to repair (MTTR)
• Quality and timeliness of root cause analyses
• Effective resolution of high-severity incidents
• Decrease in recurrence of network issues
• Successful rate of network changes and implementations
• Timely coordination with vendors and resolution of escalations

Additional Competencies

• Strong understanding of Network Operations Center (NOC) and Service Assurance practices
• Familiarity with incident, problem, and change management processes
• Experience with tools such as ServiceNow, Remedy, Jira, and network monitoring systems (NMS/EMS)
• Effective communication skills for customer and internal stakeholder interactions
• Capability to work in 24x7 shift environments

Application Information

Applications are accepted until 20 September 2026.