ESP32 Firmware Developer

We are seeking a skilled ESP32 Firmware Developer with solid experience in Modbus protocol to join our growing embedded systems team. If you have a strong foundation in C/C++ , experience with Arduino IDE, FreeRTOS, Nordic chip suite and know your way around industrial communication standards, this role is for you.

You’ll take the lead in building reliable firmware for industrial IoT devices, integrating Modbus RTU and TCP/IP into ESP32-based platforms. You’ll collaborate closely with our hardware and software teams to ensure seamless, high-performance system behavior.

Responsibilities:

• Firmware Development: Design, develop, and maintain firmware for ESP32-based systems.
• Modbus Integration: Implement and optimize Modbus RTU and Modbus TCP/IP communication protocols.
• RTOS: Utilize FreeRTOS for real-time task scheduling and inter-process communication.
• Hardware Integration: Work with hardware engineers to validate firmware behavior across schematics and prototypes.
• Performance Optimization: Ensure low-latency and low-power operation of firmware across different environments.
• Debugging & Testing: Use debugging tools (JTAG, logic analyzers, etc.) to identify and resolve system issues.
• Documentation: Write clear documentation for firmware architecture, APIs, and system workflows.
• Collaboration: Participate in sprint planning, code reviews, and team discussions to improve development velocity and code quality.

Required Skills and Qualifications:

• Experience: 3+ years in embedded firmware development with ESP32.
• Languages: Proficient in C/C++ for embedded systems.
• Protocols: In-depth experience with Modbus RTU and TCP/IP (must-have).
• RTOS: Working knowledge of FreeRTOS.
• Tools: Arduino IDE , Nordic chip suite, Familiarity with oscilloscope, JTAG, UART analyzers, etc.
• Electronics: Understanding of circuit schematics, PCB layouts, and hardware interfaces (UART, SPI, I2C, GPIO).
• Debugging: Strong troubleshooting and root-cause analysis skills.
• Education: Bachelor’s degree in Electronics, Computer Engineering, or related field.

Nice to Have:

• Experience with MQTT, CAN bus, or BACnet.
• Familiarity with OTA updates and firmware bootloaders.
• Experience working in Agile development teams.

Job Type: Full-time

Pay: ₹400,000.00 - ₹800,000.00 per year

Benefits:

• Flexible schedule
• Health insurance
• Life insurance

Work Location: In person

Speak with the employer
+91 7983182649Expected Start Date: 10/08/2025