Job Title: Embedded Firmware Engineer

Location: E-21 Sector-6, Noida, Uttar Pradesh

Company: Holmium Technologies Pvt Ltd

Experience: 2-6 years

Type: Full-time, In office

About Holmium Technologies:

Holmium Technologies is a fast-growing tech company specializing in embedded systems, remote monitoring, SCADA solutions, PV-DG synchronization, zero export systems, and customized IoT-based automation. We combine hardware design, firmware development, and cloud integration to deliver robust industrial and renewable energy solutions.

Job Summary:

We are looking for a passionate and experienced Embedded Firmware Engineer to join our R&D; team. The ideal candidate should be skilled in embedded C programming, microcontroller-based development, and communication protocols. You will play a key role in building the core firmware of our industrial-grade IoT devices and automation controllers.

Key Responsibilities:

- Design, develop, and debug embedded firmware for microcontrollers (ARM, STM32, ESP32, etc.).
- Write efficient, reliable, and maintainable code in Embedded C/C++.
- Integrate communication protocols such as Modbus (RTU/TCP), RS485, UART, SPI, I2C, MQTT, TCP/IP.
- Implement features like data logging, sensor interfaces, and remote device control.
- Collaborate with hardware, software,



and cloud teams for seamless product integration.
- Conduct unit and system-level testing to validate firmware performance.
- Optimize firmware for low power consumption and efficient memory usage.
- Document code, APIs, and firmware version release notes.
- Troubleshoot hardware-firmware issues during development and field testing.

Required Skills:

- Strong hands-on experience with Embedded C.
- Experience with STM32, ESP32, AVR, or similar microcontrollers.
- Good understanding of RTOS, timers, interrupts, and low-level driver development.
- Familiar with Modbus, MQTT, RS485, CAN, and other industrial protocols.
- Working knowledge of hardware debugging tools like logic analyzers, oscilloscopes, and JTAG debuggers.
- Ability to read schematics and understand PCB design implications.
- Familiarity with Git or other version control systems.

Preferred Qualifications:

- Experience in IoT-based product development.
- Familiarity with FreeRTOS or other RTOS environments.
- Exposure to Python or Bash scripting for testing/debugging.
- Knowledge of firmware OTA updates and secure bootloaders.

Educational Qualification:

- B.Tech/B.E. in Electronics, Electrical, Instrumentation, Embedded Systems, or related field.

📌 Embedded Firmware Engineer (Noida)
🏢 Holmium Technologies Jaipur
📍 Noida