Wireless Network Engineer

3 weeks ago

Noida, Uttar Pradesh, India Tata Consultancy Services Full time
Job Title: Wireless Network Engineer – Cisco & Aruba

Experience: 6 to 10 Years

Location: HYD/Noida (Only Local Profile Prefer)

Shift Timing: - General Shift

Domain: Telecom

Job Summary:

We are seeking a highly experienced Level 3 Wireless Network Engineer with deep expertise in both Cisco and Aruba wireless technologies. The ideal candidate will lead the design, deployment, troubleshooting, and optimization of enterprise-grade wireless infrastructures. You will act as a subject matter expert (SME), resolving high-level wireless issues and driving continuous improvements in performance, scalability, and security.

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 :

- 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 IS
- 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.

Thanks & Regards ,

Somesh Singh

TCS AI.Cloud Recruiter

Talent Acquisition Group

Website: : http://www.tcs.com

E-Mail:- somesh.singh7@tcs.com

LinkedIn:- linkdin.com/in/mrsomeshsingh

To Register for Jobs, Visit: https://ibegin.tcs.com/iBegin/register

Adress :- Tower-2, Okaya Centre Plot No. B-5,Sector - 62 Noida.

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