Project Role : Technology Support Engineer

Project Role Description : Resolve incidents and problems across multiple business system components and ensure operational stability. Create and implement Requests for Change (RFC) and update knowledge base articles to support effective troubleshooting. Collaborate with vendors and help service management teams with issue analysis and resolution.

Must have skills : Network Infrastructures

Good to have skills : SD-WAN Operations

Minimum 5 Year(s) Of Experience Is Required

Educational Qualification : 15 years full time education

Role Summary

The Senior Network Engineer is responsible for the implementation, administration, troubleshooting, and optimization of enterprise network infrastructure across global environments. The role requires deep technical expertise in Cisco and Juniper routing/switching technologies, Aruba wireless solutions, and overall network infrastructure management.

The engineer will act as an L3 escalation point, lead complex troubleshooting activities, execute network implementations and migrations, support critical incidents, and provide technical guidance to operations teams while ensuring high availability and performance of enterprise networks.

Key Responsibilities

Network Implementation & Deployment

Lead implementation of LAN, WAN, WLAN, and Data Center network solutions.

Perform installation, configuration, and migration of Cisco, Juniper, and Aruba network devices.

Execute network transformation projects, technology refreshes, and infrastructure upgrades.

Support SD-WAN, campus, branch, and wireless deployments.

Develop and validate implementation plans, rollback procedures, and testing strategies.

L3 Network Operations & Escalation Support

Act as L3 SME for network incidents and escalations.

Provide advanced troubleshooting for complex network issues.

Lead major incident resolution activities and bridge calls.

Perform Root Cause Analysis (RCA) and recommend preventive measures.

Analyze packet captures, logs, and network behavior to identify issues.

Routing & Switching

Design, configure, and troubleshoot:

OSPF, BGP, EIGRP, Static Routing, Route Redistribution, HSRP/VRRP, MPLS concepts

Configure and troubleshoot:

VLANs, STP/RSTP/MSTP, EtherChannel, VPC/VSS, Port Security, QoS

Juniper Technologies

Configure and troubleshoot Juniper EX, QFX, MX, and SRX platforms.

Manage routing and switching using Junos OS.

Troubleshoot policy, firewall filters, and routing issues.

Support Juniper wireless and Mist deployments where applicable.

Aruba Wireless

Implement and manage Aruba Wireless infrastructure.

Configure Aruba Controllers, Aruba Central, and Access Points.

Troubleshoot:

RF issues, Roaming problems, Authentication failures, Wireless performance degradation

Perform wireless site validation and optimization.

Cisco Wireless

Configure and support Cisco Wireless LAN Controllers (WLC).

Manage Cisco Access Points and WLAN policies.

Troubleshoot wireless connectivity and performance issues.

Support guest access, authentication, and mobility services.

Network Security & Infrastructure

Support enterprise network security standards and controls.

Troubleshoot network access control mechanisms.

Work with Firewalls, NAC, and security teams during implementations and incidents.

Ensure compliance with organizational security policies.

Monitoring & Automation

Utilize network monitoring tools such as:

LogicMonitor, Cisco DNAC, Splunk, ThousandEyes, Junos Space

Identify recurring issues and automate operational tasks.

Support infrastructure monitoring, alerting, and capacity planning initiatives.

Change & Problem Management

Documentation & Knowledge Management

Develop:

Network diagrams, SOPs, Runbooks, Technical design documents, RCA reports

Mentor junior engineers and provide technical leadership.

Required Technical Skills

Cisco Technologies

Cisco ISR/ASR Routers, Catalyst Switches, Nexus Switches, Cisco Wireless Controllers, DNA Center (DNAC)

Juniper Technologies

MX Series, EX Series, QFX Series, Junos Operating System

Aruba Technologies

Aruba Central, Aruba Mobility Controllers, Aruba Access Points, Aruba WLAN Management

Routing Protocols

BGP, OSPF, EIGRP, Static Routing, Route Redistribution

Switching Technologies

VLANs, STP/RSTP/MSTP, EtherChannel, VPC/VSS, Port Security, QoS

Wireless Technologies

802.11 a/b/g/n/ac/ax, RF Planning, WLAN Security, Roaming Optimization

Required Experience

6–8 years of hands-on experience in enterprise network infrastructure.

Strong experience in implementation and migration projects.

Extensive L3 troubleshooting experience.

Experience supporting large-scale enterprise and managed service environments.

Experience working within ITIL-based service management frameworks.

Preferred Certifications

Cisco

CCNP Enterprise (Preferred)

CCIE Enterprise Infrastructure (Desirable)

Juniper

JNCIS-ENT

JNCIP-ENT

Aruba

Aruba Certified Mobility Professional (ACMP)

Aruba Certified Design Professional (ACDP)

Additional

ITIL Foundation

Network Automation certifications (Ansible/Python)

Key Competencies

Advanced troubleshooting and problem-solving skills

Technical leadership and mentoring capability

Strong stakeholder and client communication

Change management and risk assessment expertise

Excellent documentation skills

Ability to manage high-severity incidents under pressure

Typical L3 Activities

Resolve critical routing and switching outages.

Lead network implementation and migration activities.

Perform packet analysis using Wireshark.

Validate and optimize BGP/OSPF routing.

Troubleshoot Aruba and Cisco wireless issues.

Review network designs and architecture changes.

Conduct RCA and preventive action planning.

Provide technical guidance to L1/L2 engineers and operations teams.