Zigbee Firmware Developer

Garhwa - India

Monthly Salary: Not Disclosed

Posted on: 4 hours ago

Vacancies: 1 Vacancy

Job Summary

Key Responsibilities

Core Firmware Development

Develop test and optimize firmware for Zigbee-based devices (end devices routers coordinators).

Implement Zigbee clusters (e.g. On/Off Level Control Scenes IAS Metering Lighting).

Handle device provisioning joining/leaving networks binding/unbinding reporting and ZCL attribute handling.

Work with TI Nordic Silicon Labs or similar Zigbee chipsets/SDKs (EFR32 CC2652 nRF52840 etc.).

Protocol and amp; Stack-Level Work

Integrate and customize the Zigbee Stack (Z-Stack EmberZNet ZBOSS etc.).

Work on ZCL APS NWK MAC layersdebugging packet flow end-to-end.

Deep understanding of Zigbee 3.0 security commissioning modes and interoperability requirements.

Hardware Bring-Up

Work closely with hardware teams for board bring-up pinmux configuration bootloaders OTA DFU timers ADC UART/SPI/I2C.

Validate RF performance and coordinate with RF and testing teams.

Testing Debugging and amp; Validation

Use tools like Ubiqua Ember Desktop Silicon Labs Simplicity Studio logic analyzers oscilloscopes.

Perform protocol sniffing interoperability testing and network stress testing.

Documentation and amp; Compliance

Write firmware documentation release notes and integration guides.

Ensure Zigbee 3.0 compliance and certification readiness.

Cross-Team Collaboration

Work with QA hardware mobile app and cloud teams to ensure smooth integration of IoT solutions.

Participate in sprint planning design reviews and architecture discussions.

Required Skills

Strong C/C embedded programming (no Arduino-level skills).

Hands-on experience with Zigbee 3.0 stack development and ZCL implementation.

Practical exposure to at least one major Zigbee chipset family (EFR32/Ember CC26xx nRF52).

Experience with FreeRTOS or similar RTOS for embedded systems.

Strong debugging skills using JTAG SWD RF sniffers and protocol analyzers.

Experience with OTA updates memory optimization concurrency and power optimization.

Good to Have

Experience with other home automation protocols (Z-Wave BLE Mesh Thread Matter).

Knowledge of MQTT gateways RS485 KNX.

Experience in production firmware handling 10K device scale.

Familiarity with mobile app integration flows and cloud communication pipelines.

Key ResponsibilitiesCore Firmware DevelopmentDevelop test and optimize firmware for Zigbee-based devices (end devices routers coordinators).Implement Zigbee clusters (e.g. On/Off Level Control Scenes IAS Metering Lighting).Handle device provisioning joining/leaving networks binding/unbinding reporti...