Role Overview

We are looking for an experienced Senior Network Operations Engineer for our client, one of the world's top 5 largest banks. The role requires strong hands-on expertise in supporting and troubleshooting Enterprise LAN and Wi-Fi environments.

The candidate will be responsible for L2/L3 operational support, complex incident troubleshooting, approved network changes, Root Cause Analysis (RCA), and maintaining high availability and performance of the enterprise network.

Strong hands-on experience with Cisco Wireless or Juniper Mist Wi-Fi is highly preferred.

Primary Skills

- Enterprise LAN
- Wi-Fi / Wireless Networking
- Network Operations & Troubleshooting
- L2/L3 Network Support
- Incident, Problem & Change Management

Preferred Technologies

- Cisco Catalyst
- Cisco Wireless
- Meraki
- Juniper Mist
- Juniper EX Switching
- Aruba
- Ruckus
- Extreme Networks

Key Responsibilities - Enterprise LAN & Wi-Fi Operations

- Provide L2/L3 operational support for enterprise LAN and Wi-Fi environments.
- Troubleshoot VLANs, trunking, STP/RSTP/MSTP, LACP, LLDP, DHCP, DNS, ARP/MAC issues, ACLs and QoS.
- Troubleshoot switches, interfaces, uplinks, routing and end-to-end connectivity issues.
- Investigate packet loss, interface errors, network loops, broadcast storms and network performance issues.
- Troubleshoot enterprise Wi-Fi client connectivity, authentication, DHCP, DNS, roaming, throughput, latency and intermittent connectivity.
- Analyze RSSI, SNR, noise, channel utilization, retries and AP/client capacity.
- Troubleshoot 2.4 GHz, 5 GHz and 6 GHz wireless environments.
- Troubleshoot WPA2/WPA3, 802.1X, RADIUS and EAP authentication.
- Troubleshoot roaming and client mobility, including 802.11k/r/v.




- Perform packet captures and traffic analysis when required.
- Integrate network devices with monitoring tools and ensure required KPIs are configured.

Juniper Mist Operations

- Onboard and provision Juniper Mist Access Points (APs).
- Configure WLANs/SSIDs, VLAN mapping and RF profiles.
- Troubleshoot AP and client connectivity issues.
- Troubleshoot DHCP, DNS and RADIUS issues using Juniper Mist.
- Use Marvis and Mist client timelines/events for troubleshooting and Root Cause Analysis.
- Monitor and interpret Mist Service Level Expectations (SLEs).
- Manage configuration templates and multi-site environments.
- Perform AP firmware upgrades, replacements and RMA activities.
- Support integration of Mist APs with LAN switching infrastructure.
- Experience with Juniper EX, Mist Wired Assurance and Access Assurance will be an added advantage.

Incident, Problem & Change Management

- Own and troubleshoot P1/P2/P3 incidents within defined SLAs.
- Lead or participate in technical troubleshooting calls and major incident bridges.
- Coordinate with clients, NOC, Service Desk, OEM TAC, ISPs and field engineers.
- Provide transparent technical updates and drive incidents through to resolution.
- Perform detailed RCA for major and recurring incidents.
- Identify trends and recommend corrective and preventive actions.




- Review HLD/LLD documents and identify implementation dependencies and risks.
- Prepare and execute MOPs, implementation plans and rollback procedures.
- Implement approved production network changes and perform pre- and post-change validation.
- Support network migrations, AP/switch replacements, firmware upgrades and configuration changes.
- Maintain operational documentation, network diagrams, troubleshooting guides and knowledge articles.

Required Experience & Skills

- 8-10+ years of experience in Enterprise Network Operations and Infrastructure.
- Strong hands-on experience in Enterprise LAN and Wi-Fi operations.
- Strong troubleshooting knowledge across L2/L3 networking.
- Hands-on experience with enterprise switching and wireless technologies.
- Strong understanding of VLANs, STP, LACP, DHCP, DNS, ARP, MAC, ACLs and QoS.
- Hands-on Wi-Fi troubleshooting experience covering authentication, roaming, RF and client connectivity.
- Strong experience with Cisco Wireless or Juniper Mist Wi-Fi is highly preferred.
- Ability to independently own incidents from identification through troubleshooting, resolution, validation, RCA and preventive action.
- Strong communication and incident management skills.
- Banking/financial services experience will be preferred.

Preferred Certifications

- CCNP Enterprise
- JNCIA / JNCIP
- CWNA / CWNP
- Aruba Certifications
- Ekahau ECSE
- ITIL Foundation

Preferred Candidate Profile Immediate Joiners preferred.

Candidates with experience supporting large enterprise or banking environments, along with strong hands-on LAN, Wi-Fi and Juniper Mist/Cisco Wireless troubleshooting experience, will be preferred.

📌 Senior Network Operations Engineer (Bengaluru)
🏢 Whitespace Consulting India
📍 Bengaluru