Wireless Network Engineer

Job Summary:

Level 3 Wireless Network Engineer

Key Responsibilities:

• Design and deploy

  large-scale wireless LAN (WLAN)

  environments using Cisco WLCs and Aruba (Mobility Controllers, Instant APs, Central).
• Optimize

  channel planning

  ,

  band steering

  , and

  power level adjustments

  to reduce interference and maximize coverage.
• Architect and implement

  high-availability wireless designs

  , including N+1 controller redundancy, LAGs, VRRP/HA groups.
• Administer

  Cisco WLCs (9800)

  and

  Aruba Mobility Controllers (MM/MC architecture)

  .
• Configure

  WLANs, SSIDs, AAA policies, and AP groups

  with role-based access control (RBAC).
• Implement

  Fast Roaming (802.11r/k/v)

  ,

  bandwidth throttling

  ,

  application visibility

  , and

  WIPS/WIDS

  .
• Manage

  firmware upgrades

  ,

  controller failovers

  , and

  AP image preloading

  strategies.
• Integrate with

  RADIUS servers (ISE, forescout)

  for

  802.1X

  authentication.
• Configure

  Guest access portals

  ,

  MAC-based authentication

  , and

  Captive Portals

  (internal and external).
• Analyze wireless packet captures using

  Wireshark

  , or

  Aruba AirWave/Central

  .
• Resolve L2/L3 roaming issues, high latency, client disconnections, and interference problems.
• Monitor KPIs like SNR, RSSI, retransmission rates, and throughput to identify RF anomalies.
• Correlate client issues using

  Aruba Central

Required Skills & Experience:

• 5+ years of experience in enterprise wireless networking

  .

• Strong hands-on expertise

  in both

  Cisco and Aruba wireless ecosystems

  .
• Proficiency with:

• Cisco Wireless LAN Controllers

  (9800 Series, AireOS, Catalyst APs)

• Aruba Controllers

  ,

  Instant APs

  ,

  Aruba Central

  ,

  AirWave

• Wireless security protocols

  : WPA2/WPA3, 802.1X, PSK, MAC auth

• Authentication systems

  : Cisco ISE

• RF tuning

  ,

  mesh networks

  ,

  client load balancing

  ,

  high-density deployment

• Strong understanding of

  Layer 2/3 networking

  ,

  VLANs

  ,

  Multicast

  ,

  QoS

  , and

  DHCP relay

  .
• Comfortable with

  CLI

  (Cisco IOS/XE, Aruba OS) and

  web-based UIs

  .
• Experience with

  cloud-managed wireless solutions

  (Aruba Central, Cisco Meraki is a plus).
• Familiarity with

  Wi-Fi 6 and Wi-Fi 6E

  features and limitations.

Preferred Certifications:

• Cisco Certified Specialist Enterprise Wireless

• Aruba Certified Mobility Professional (ACMP)

Soft Skills:

• Strong analytical and troubleshooting skills.
• Excellent documentation and communication abilities.
• Proven leadership in high-severity incidents and RCA investigations.
• Capable of mentoring L1/L2 engineers and leading knowledge transfer sessions.
• Ability to manage multiple priorities and work independently.

  Role & responsibilities

  Wireless Network Engineer

Experience 5+ years

location delhi ncr hyderabad

jd