Nexifyr
Website:
nexifyr.in
Job details:
Wi-Fi & RF design expert
About the Company
We are a leading internet service provider in India that was founded in 2007. The company’s primary goal is to provide affordable and reliable internet connectivity to customers across India. We started by setting up a Campus Wi-Fi network at Manipal University, Manipal, and later expanded its Wi-Fi services to hospitality, co-living, airports, malls, and other public spaces. The company owned and operated the largest campus Wi-Fi network in the country and the Wi-Fi network in some of the leading Indian hospitality chains, including Taj, Lalit, Lemon Tree, and Ginger.
In 2011, we forayed into the residential broadband segment and became one of the first companies to adopt the highly reliable and high-speed GPoN technology for delivering broadband services to its residential customers. We deliver speeds of up to 1 Gbps to its residential customers, and its unlimited data plans have been particularly popular among users who require highly reliable high-speed bandwidth applications such as streaming video and online gaming. Currently, our services are available, both directly and indirectly through franchisees, in more than 3 lakhs residences across the country.
Full-time · permanent | Engineering & Product | Bengaluru (WFO) - 5 days a week
Reports to: Head of Engineering | Experience: 6–10 years
About the Role
Own end-to-end Wi-Fi and RF design — from product specification and hardware selection through field deployment standards, NOC integration, and ongoing performance optimisation across a growing fleet targeting 100,000+ APs.
You will be the technical authority on all 802.11 matters — defining AP placement methodology, SSID/VLAN architecture, roaming behaviour, VoWiFi quality, RF interference management, and the Wi-Fi-specific sections of the product programme document.
This is a hands-on engineering role with significant product influence. You will work across engineering, NOC, and product to translate RF design decisions into deployable configurations, monitoring thresholds, and automated remediation logic.
Key Responsibilities
RF & Wireless Design
AP placement methodology — define AI-assisted and manual survey-based placement standards for villas, colliding & coworking spaces.
RF interference management — identify and mitigate co-channel and adjacent-channel interference; define noise floor thresholds and corrective actions for NOC engineers.
Capacity planning — define client density limits per AP, MU-MIMO/OFDMA utilisation targets, and load-balancing triggers per deployment type.
Product and Configuration Design
SSID and VLAN architecture — own the Wi-Fi specific sections of the PPD:
SSID design, VLAN mapping, WPA3 enforcement, 802.11r/k/v roaming parameters, and sticky client remediation ladder.
VoWiFi quality design — define WMM/DSCP marking, U-APSD config, roaming protection during active calls, IKE session stability requirements, and
SIP ALG mandates across CPE and ONT.
Hardware evaluation and selection — evaluate, test, and qualify AP hardware; define minimum spec requirements for future hardware additions; manage
BIS/WPC compliance verification.
Controller configuration standards — define controller configuration templates,
ZTP provisioning parameters, mobility domain IDs, and per-site roaming boundaries.
NOC & Monitoring Integration
Threshold definition — own all Wi-Fi performance thresholds in the PPD:
RSSI targets, channel utilisation limits, roaming latency, MCS rate floors, sticky client event rates, and VoWiFi quality targets (jitter, MOS, IKE stability).
Alert and CFA design — define P1–P4 alert conditions for all Wi-Fi metrics; write call-for-action playbooks for NOC engineers covering RF-related faults including coverage gaps, interference, sticky clients, and VoWiFi degradation.
Wi-Fi health score — own the health score formula (coverage, speed, uptime,
VoWiFi, roaming components); define weighting adjustments as fleet data matures.
Field & Operational Standards
Installation SOPs — define RF-specific installation standards for the remote first, app-guided install model; cable routing, AP mounting height and orientation, backhaul port usage, and post-install validation checklist.
Firmware governance — define the canary testing protocol for AP firmware updates; review release notes for RF-impacting changes; own the 5%→fleet rollout schedule.
L2/L3 Wi-Fi troubleshooting support — provide expert escalation support to the NOC for complex RF issues not resolvable via standard playbooks;
conduct remote RF analysis using controller data and Grafana metrics.
Skills and Experience Required:
802.11 Protocols: Wi-Fi 6 (802.11ax), 802.11r/k/v roaming, WPA3 / 802.11W
PMF, OFDMA / MU-MIMO & Wi-Fi 7 (802.11be)
RF Design Tools: Ekahau / iBwave, Manual RF survey, Spectrum analysis,
AI placement tools, 3D floor plan modelling
Controllers and Platforms: Cambium cnMaestro/AirPro, Cisco Meraki /
Catalyst, Aruba Central, Ruckus SmartZone & Ubiquiti UniFi
Networking Fundamentals: VLANs / 802.1Q, WMM / DSCP / QoS,
IPv4/IPv6 dual stack, CAPWAP / controller arch & WIDS/WIPS
VoWiFi & Voice Quality: IKE / IPSec passthrough, SIP ALG impact analysis,
MOS / jitter / latency, U-APSD / WMM AC_VO & IMS / ePDG architecture
Monitoring & Analytics: Grafana dashboard design, Prometheus / SNMP metrics, RF log analysis, TimescaleDB queries & PromQL basics
ISP / Access Network: GPON / EPON / ONT, TR-069 / ACS basics, CPE dual-WAN design & TRAI QoS standards
Soft Skills: Technical documentation, Cross-functional collaboration, NOC playbook writing, Vendor evaluation & Field team training
Qualifications - B.E./B. Tech in Electronics, Telecommunications, Computer Science, or related field - CWNA (Certified Wireless Network Administrator) or equivalent - CWDP / CWAP / CWSP - Cambium Certified Wi-Fi Professional or Cisco CCNP Wireless - 6–10 years of hands-on Wi-Fi/RF design experience
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