Embedded Firmware Engineer

Job Summary

We are seeking an experienced Embedded Firmware Engineer to join our engineering team. The ideal candidate will have strong programming skills in C and C++, with hands-on experience in RTOS-based development. You will be responsible for developing firmware for IoT devices, wearable health monitors, and mesh network systems, working with various microcontroller platforms and wireless communication protocols.

Key Responsibilities

• Design, develop, and debug firmware for embedded systems using STM32, nRF52, ESP32, and other microcontrollers
• Write efficient, well-structured, and maintainable code in C and C++
• Develop applications using RTOS environments (FreeRTOS, Zephyr RTOS) for real-time systems
• Implement wireless communication protocols including BLE, WiFi, Zigbee, and mesh networking
• Develop and integrate sensor drivers for various health monitoring sensors (accelerometer, gyroscope, heart rate, SpO2, piezoelectric)
• Implement communication protocols such as HTTP, MQTT, UART, SPI, and I2C
• Collaborate with hardware team for board bring-up, testing, and debugging
• Develop and deploy TinyML models using Edge Impulse for on-device machine learning
• Participate in code reviews, testing, and continuous improvement of firmware quality
• Support hardware integration, prototype testing, and field debugging

Technical RequirementsProgramming Languages

• Strong proficiency in C programming (Must have)
• Strong proficiency in C++ programming (Must have)
• Experience with embedded coding standards and best practices

RTOS & Operating Systems

• FreeRTOS - Task management, scheduling, synchronization (Must have)
• Zephyr RTOS - Device drivers, networking stack
• Understanding of real-time system concepts, interrupts, and memory management

Microcontrollers & Architectures

• Strong experience with STM32, nRF52, ESP32 microcontrollers
• Familiarity with other MCUs: PIC, AVR, MSP430, Renesas
• Good understanding of ARM Cortex-M and RISC-V architectures

Wireless Communication

• Bluetooth Low Energy (BLE) - GATT services, advertising, bonding
• WiFi - Station/AP modes, TCP/IP stack, mesh networking
• Zigbee / Thread / Matter protocols
• Experience with mesh network topologies and routing algorithms

Development Frameworks & Tools

• ESP-IDF, Arduino framework
• Edge Impulse, TinyML for embedded ML applications
• Version control (Git), debugging tools (JTAG, SWD)
• Protocol analyzers, logic analyzers, oscilloscopes

Communication Protocols

• HTTP/HTTPS, MQTT, CoAP for IoT communication
• UART, SPI, I2C for peripheral communication
• JSON/CBOR data serialization

Education

• B.E / B.Tech in Electronics, Electrical, Computer Science, or related field (Required)
• M.Tech in Electronics, Embedded Systems, or relevant specialization (Preferred)

Good to Have

• Experience with wearable devices or medical/healthcare IoT products
• Knowledge of power optimization techniques for battery-powered devices
• Exposure to OTA firmware update mechanisms
• Understanding of PCB design basics and hardware schematics
• Experience with CI/CD for embedded systems

Soft Skills

• Strong analytical and problem-solving abilities
• Excellent team collaboration and communication skills
• Ability to write clear technical documentation
• Self-motivated with ability to work independently
• Adaptable to fast-paced project environments

Compensation & Benefits

• Competitive salary as per industry standards
• Opportunity to work on innovative technology solutions
• Professional growth and learning opportunities

Collaborative and innovative work environment

Job Types: Full-time, Permanent

Pay: ₹480,000.00 - ₹650,000.00 per year

Ability to commute/relocate:

• Kochi, Kerala: Reliably commute or planning to relocate before starting work (Preferred)

Experience:

• Firmware: 4 years (Preferred)

Work Location: In person