Senior Engineer - Embedded (Junior & Mid-Level)

Legrand; Thane; On-site; INR 1,200,000 - 2,000,000; Full time

Job summary

Legrand is seeking an experienced embedded firmware engineer to design and develop firmware for IoT devices. You will work on BLE and Zigbee applications, implement secure device–cloud communication, and deliver OTA firmware updates.

You will debug complex embedded systems, participate in architecture discussions, and contribute to product certification and lifecycle ownership. The role requires strong C/C++, Embedded Linux, RTOS expertise and hands-on work with device drivers, communication

Qualifications

• Bachelor's or Master's degree in Electronics, Computer Science, Electrical Engineering or related discipline.
• Solid experience in embedded firmware development and hardware interaction.
• Strong knowledge of C/C++, embedded Linux, RTOS and device drivers.

Responsibilities

• Design embedded firmware for IoT devices.
• Develop BLE and Zigbee applications and secure device–cloud communication.
• Implement OTA firmware updates and MQTT modules.
• Debug complex embedded issues and participate in architecture discussions.
• Perform code reviews and support product certification and lifecycle ownership.

Skills

Embedded C

C++

Embedded Linux

RTOS

Device driver

Communication protocols

Multithreading

Software architecture

Debugging

Agile

Education

Bachelor's or Master's in Electronics/CS/EE

Tools

Git

GCC

GDB

CMake

Wireshark

Oscilloscope

Logic Analyzer

VS Code

Jira

Confluence

Job description

Mandatory Skills

• MQTT broker integration


• REST APIs


• Device Shadow / Digital Twin


• Cloud provisioning


• Telemetry


• Cloud command execution

JOB DESCRIPTION

• Strong programming in Embedded C


• Good understanding of C++


• Embedded Linux


• RTOS (FreeRTOS/Zephyr)


• Device driver development


• Communication protocols


• Git


• Software architecture


• Multithreading/Multitasking


• Strong debugging


• Agile methodology

IoT & Connectivity Skills

• BLE


• Zigbee


• MQTT


• TCP/IP


• Wi-Fi


• Gateway architecture


• Device provisioning


• Device onboarding


• OTA firmware updates


• Cloud connectivity


• End-to-end IoT product development

Security Knowledge

• Secure Boot


• Secure Firmware Update


• TLS/SSL


• Certificate management


• Device authentication


• Encryption


• Authentication & Authorization


• Key management

Cloud Exposure

• AWS IoT Core / Azure IoT Hub / equivalent


• MQTT broker integration


• REST APIs


• Device Shadow / Digital Twin


• Cloud provisioning


• Telemetry


• Remote diagnostics


• Cloud command execution

Preferred Skills

• Matter


• Thread


• BLE Mesh


• Docker


• Python


• Shell scripting


• Wireshark


• Bootloader development

Good to Have

• CI/CD


• Static code analysis


• Unit Testframework

Tools

• Git


• Jira


• Confluence


• VS Code


• GDB


• CMake


• GCC


• Wireshark


• Logic Analyzer


• Oscilloscope

Soft Skills

• Ownership mindset


• Problem-solving


• Communication


• Cross-functional collaboration


• Ability to work independently

Strong debugging mindset

Responsibilities

Roles & Responsibilities

• Design embedded firmware.


• Develop BLE and Zigbee applications.


• Implement secure device-cloud communication.


• Develop MQTT modules.


• Implement OTA firmware updates.


• Optimize firmware performance.


• Debug complex embedded issues.


• Participate in architecture discussions.


• Perform code reviews.


• Support product certification and own the product lifecycle.

Qualifications

Bachelor's or Master's degree in Electronics, Computer Science, Electrical Engineering or related discipline.