Hyderabad, Telangana
Job Summary

Own the connectivity software stack across Wi-Fi, Bluetooth, cellular and time-sensitive Ethernet on ARM-based SoC platforms, including coexistence management across concurrent radios for industrial, enterprise and CPE-class products.

Key Responsibilities
Bring up, integrate and maintain Wi-Fi (including Wi-Fi 6/6E/7 class), Bluetooth/BLE, cellular (4G/5G, including RedCap-class) and Ethernet subsystems.
Develop and debug connectivity drivers and firmware interfaces — cfg80211/mac80211/nl80211, BlueZ or vendor BT stacks, MBIM/QMI-style modem interfaces, PHY/MAC Ethernet drivers.
Implement and tune radio coexistence strategies across concurrent Wi-Fi, Bluetooth and cellular operation.
Enable Time-Sensitive Networking features — IEEE 802.1AS/Qbv/Qav, PTP time sync, traffic shaping and deterministic latency configuration.
Integrate supplicant, hostapd, network management and provisioning flows including WPA3, enterprise auth and onboarding.
Characterize and optimize throughput, latency, range, roaming behaviour and connectivity power consumption.
Debug interoperability and field connectivity issues using sniffers, packet captures, RF test equipment and firmware logs.
Support regulatory, carrier and interoperability certification activities.
Skill Requirements




8–10 years in connectivity / networking software on embedded platforms.
Robust C on embedded Linux; kernel networking and wireless subsystem familiarity.
Depth in at least two of: Wi-Fi (802.11 MAC/PHY behaviour, cfg80211/mac80211, hostapd/wpa_supplicant), Bluetooth/BLE stack and profiles, cellular modem integration, Ethernet/TSN.
Practical experience debugging with Wireshark, wireless sniffers, tcpdump, iperf and RF test setups.
Understanding of coexistence mechanisms across collocated radios.
Networking fundamentals — TCP/IP, IPv6, DHCP, routing, NAT, QoS.
Throughput and connectivity power optimization experience.
Other Requirements
Wi-Fi 7 features — MLO, 320 MHz, 4K QAM; or Wi-Fi mesh/EasyMesh.
5G NR, RedCap or NB-IoT/LTE-M deployment experience.
TSN in industrial automation contexts; PROFINET, EtherCAT or OPC UA exposure.
OpenWrt or vendor SDK-based networking distributions.
Certification experience with Wi-Fi Alliance, Bluetooth SIG or carrier programmes.
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📌 Senior Technical Architect (Hyderabad)
🏢 HCLTech
📍 Hyderabad