Senior Software Developer

ESP32 IoT Firmware Developer Profile

Experience: 5+ Years

Professional Summary

A highly skilled IoT firmware developer with over 5 years of hands-on experience in designing, developing, and deploying ESP32-based IoT devices for industrial and mission-critical applications.

Core Technical Skills

Embedded Hardware & Platforms

• ESP32 (ESP32-WROOM, ESP32-S3, ESP32-C3)
• STM32, AVR (working knowledge)
• RS485, RS232, UART, SPI, I²C, CAN
• ADC, DAC, PWM, GPIO, RTC, Watchdog

Firmware & Software

• Embedded C / C++
• ESP-IDF & Arduino Framework
• FreeRTOS task design and optimization
• Bootloader, OTA firmware updates
• Low-power optimization and sleep modes

Connectivity & IoT Protocols

• Wi-Fi, BLE, BLE Mesh
• 4G/LTE modules (SIM7600, SIM7070, EC200/EC25)
• MQTT, HTTP/HTTPS, TCP/IP
• Kafka-based messaging integration (via gateways)
• Cloud integration (AWS IoT, Azure IoT, custom servers)

Security & Reliability

• TLS/SSL, certificate-based authentication
• Secure boot and flash encryption
• Fail-safe firmware design
• Data buffering and store-and-forward logic

Development & Deployment Experience

• End-to-end product development from prototype to mass production
• Designing firmware for millions of field devices
• Integration with testing agencies and regulatory compliance
• Debugging and optimization for harsh industrial environments

Tools & Debugging

• JTAG, OpenOCD, Logic Analyzers
• Wireshark, MQTT Explorer
• Git, GitLab CI/CD
• Manufacturing test firmware and fixtures

Key Responsibilities at RFBytes

• Architecture design of ESP32-based IoT devices
• Development of scalable and secure firmware
• Integration with cloud and analytics platforms
• Supporting certification and compliance processes
• Providing technical leadership and mentoring junior engineers

Professional Strengths

• Strong problem-solving and debugging skills
• Deep understanding of field reliability and uptime
• Experience in industrial-grade IoT deployments
• Ability to work closely with hardware, cloud, and operations teams

Email : info@rfbytes.com, sayalee.parab@rfbytes.com

For Company details please visit www.rfbytes.com and follow us on linked IN for more such requirements.

Company Linked In Page :

https://www.linkedin.com/company/rfbytes/