Embedded Software Engineer IoT Lighting Firmware

InfoVision Inc.; Bengaluru; On-site; INR 3,000,000 - 5,500,000; Full time

Job summary

InfoVision Inc. in Bengaluru seeks an experienced Embedded C engineer with 5–8+ years of production firmware ownership. You will work across RTOS platforms, sensor interfacing (I2C/SPI), and bring-up on new MCUs from reference manuals.

The role involves inheriting legacy code, debugging low-level issues, implementing MQTT/LwM2M IoT protocols, and overseeing OTA/FOTA updates while mentoring teammates.

Qualifications

• 5–8+ years of embedded C development with ownership of production firmware subsystems.
• Deep RTOS experience (ThreadX preferred; or FreeRTOS/Zephyr/embOS).
• Ability to inherit and support firmware written by others; reverse-engineer intent from code.

Responsibilities

• Own embedded C development and production firmware subsystems.
• Work with RTOS and bring up MCUs from reference manuals; sensor interfacing (I2C/SPI).
• Debug memory corruption, race conditions, and device communication faults.
• Design and validate OTA/FOTA and secure boot/update processes.
• Mentor peers and participate in code reviews; support IoT protocols (MQTT, LwM2M).

Skills

DALI protocol

Zhaga interoperability

Environmental sensor integration

RTOS experience (ThreadX/FreeRTOS/Zeph

Debugging low-level firmware

Education

Bachelor's degree in ECE/EE/CS

Master's degree in related field (M.Tech/MS) a plus

Tools

Quectel BG96/BG95 (QAPI)

Telit M2MB platforms

LLVM/Clang & GCC ARM toolchains

Git version control

Job description

• Direct experience with the DALI lighting control protocol or Zhaga interoperability standards
• Experience with tilt/accelerometer sensors or other environmental sensor integration in outdoor IoT products
• Direct experience with Quectel BG96/BG95 (QAPI) and/or Telit M2MB platforms
• Experience with both LLVM/Clang and GCC ARM embedded toolchains
• Experience taking over/maintaining a codebase originally written by a different team or vendor

• Direct experience with the DALI lighting control protocol or Zhaga interoperability standards
• Experience with tilt/accelerometer sensors or other environmental sensor integration in outdoor IoT products
• Direct experience with Quectel BG96/BG95 (QAPI) and/or Telit M2MB platforms
• Experience with both LLVM/Clang and GCC ARM embedded toolchains
• Experience taking over/maintaining a codebase originally written by a different team or vendor
• Prior work in outdoor IoT, smart infrastructure, or utility/lighting control domains.

Education

• Bachelor's degree (B.E./B.Tech) in Electronics & Communication Engineering (ECE), Electrical Engineering (EE), Computer Science, or a related field — or equivalent practical experience
• Master's degree (M.Tech/MS) in a related field is a plus, but not required; relevant industry experience is considered an equivalent substitute.

Roles & Responsibilities

• 5–8+ years of embedded C development, with demonstrated ownership of production firmware subsystems
• Deep RTOS experience (ThreadX strongly preferred; otherwise FreeRTOS/Zephyr/embOS with willingness to ramp up)
• Strong MCU/embedded fundamentals independent of any single vendor SDK: interrupts, memory maps, linker scripts, peripheral register-level programming, sensor interfacing (I2C/SPI), and the ability to bring up understanding of a new chip/platform from its reference manual and existing code
• Demonstrated ability to inherit and support firmware you did not write — reverse-engineering intent from code, git history, and observed hardware/sensor behavior when documentation is incomplete
• Experience with IoT protocols: MQTT (pub/sub, QoS, keepalive tuning) and device management protocols (LwM2M, TR-069, or similar)
• Experience with cellular modem platforms (Quectel, Telit, or similar) and AT command interfaces
• Track record debugging low-level issues: memory corruption, race conditions, watchdog/reset analysis, sensor/MCU communication faults
• Experience with FOTA/firmware update design and secure boot/update integrity
• Strong code review and mentoring skills.