Bluetooth Firmware Engineer

20 hours ago

Bengaluru, Karnataka, India InnoPhase IoT Full time ₹ 12,00,000 - ₹ 36,00,000 per year
Role Summary

Design, implement, and ship Bluetooth Controller firmware across BLE (Link Layer/MAC) and Bluetooth Classic (BR/EDR LM behaviors) on our SoCs. Work spans bring-up, timing & reliability, test/qualification, and cross-functional debug with RF, systems, and QA—hands-on from lab benches to release.

Key Responsibilities
  • Firmware development (Controller): Implement and maintain controller features aligned to Bluetooth Core Spec 5.x and 6.x for BLE and Bluetooth Classic.
  • Bring-up & stabilization: Bring up features on FPGA/eval boards/silicon; tune timing/latency paths in RTOS environments for BLE and Classic.
  • Test & qualification support: support certification/interop; analyze sniffer/HCI logs and close issues with clear root cause.
  • System-level debugging: Triage issues across firmware, drivers, and basic RF interactions; collaborate with Hardware/RF, Systems, and QA to land fixes.
  • Tooling & automation: Contribute HCI test scripts, utilities, and CI checks that improve repeatability and coverage.
  • Maintenance: Participate in code reviews, documentation, and sustaining engineering for released features.
Core Competencies
  • Hands-on experience in Bluetooth controller firmware with understanding of BLE LL/MAC and Bluetooth Classic LM procedures.
  • Strong embedded C skills (interrupts, memory-safe coding, RTOS concurrency).
  • Comfort with UART/SPI/I²C and board bring-up workflows.
  • Ability to work with sniffer/HCI logs (BLE and Classic) and embedded debuggers; strong analytical and troubleshooting ability.
  • Organized, detail-oriented, proactive, and effective in cross-functional teams.
  • Clear written and verbal communication.
Qualifications (Requirements)
  • E./B.Tech/M.E./M.Tech in ECE/EE/CS (or equivalent practical experience).
  • 5–9 years of embedded firmware experience on MCUs/SoCs with RTOS.
  • Proficiency in C, version control, code reviews, and CI basics.
  • Experience developing to Bluetooth Core Spec 5.x and 6.x at the controller level—covering BLE LL/MAC and exposure to Bluetooth Classic BR/EDR LM procedures.
  • Exposure to system test, troubleshooting, and root-cause analysis of Bluetooth products.
  • Basic RF awareness.
  • Coexistence basics (Wi‑Fi/Bluetooth) and lab tools (oscilloscope, logic analyzer, power meter).
  • Familiarity with open Bluetooth ecosystems (e.g., Zephyr/NimBLE).

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