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.
