Senior Firmware Engineer

Job Description - R&D Senior Firmware Design Engineer

We are currently seeking a R&D Senior Firmware Design Engineer to join our R&D team based in our Bangalore, India location.

The ideal candidate will have hands-on experience working with a variety of sensor technologies, including those involving analog signal interfaces and wired communication protocols such as Modbus and BACnet.

They will be proficient in embedded firmware development on 32-bit ARM-based microcontrollers, with a strong background in sensor calibration, signal processing, and system-level debugging using lab instruments.

This role is part of a collaborative Agile development team using Scrum and Jira to plan and deliver high-quality embedded solutions.

As a member of the Embedded Firmware Team, you will contribute to the design, implementation, and testing of microcontroller code for intelligent devices.

The team also develops and maintains automated integration tests to ensure product reliability.

You will be a development champion, driving continuous improvement in our tools, processes, and practices.

This is a unique opportunity to expand your technical expertise while building customer-focused products that are deployed globally.

We are looking for a positive, confident, and self-motivated individual who thrives in a fast-paced, team-based environment and is passionate about developing next-generation technologies that connect and empower our products and customers.

Responsibilities


* Design, develop, and maintain embedded firmware for leading edge HVAC sensors products.


* Implement and support Modbus RTU/TCP and BACnet MS/TP communication protocols.


* Develop analog signal handling for 0-10V and 4-20 mA outputs.


* Work with 32-bit ARM microcontrollers, including peripheral configuration and low-level driver development.


* Perform board bring-up, hardware-software integration, and debugging using oscilloscopes, multimeters, and logic analyzers.


* Support sensor calibration routines and ensure accuracy across environmental conditions.


* Collaborate with cross-functional teams including hardware, mechanical, and test engineering.


* Document firmware design, test procedures, and calibration workflows.


* Work closely with verification and validation (test) team to ensure full test coverage, and quick closure of reported firmware defects.


* Champion process improvements to increase quality, reduce costs, and improve efficiency.


* Participate in agile planning events including Scrums, sprint planning, and retrospectives.

Core Required Skills



* Experience with RTOS or bare-metal firmware development.


* Strong proficiency in C/C++ for embedded systems.

Good experience in Python.


* Working knowledge of 32-bit ARM based architectures


* Strong background and understanding of electric circuit fundamentals, and able to read electronic schematic diagrams.


* Familiarity with Modbus and BACnet prot...