Senior Embedded Engineer
SWITS DIGITAL ↗
📍 Bengaluru, India 🇮🇳
full-time
senior
Expired
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Key Skills
ESP32C++MQTTFreeRTOSTCP/IP
Industry
AutomotiveIndustrial Automation
Job Description
Job Title:
Senior Embedded Firmware Engineer (IoT ESP32, C, MQTT)
Location: Bengaluru
Experience: 5 8 Years
Role Overview
We are seeking an experienced Embedded Firmware Engineer to design, develop, and maintain firmware for ESP32-based IoT systems used in fuel station automation. This role focuses on real-time device control, cloud connectivity, and ensuring high reliability in challenging field environments such as petrol stations.
Key Responsibilities 1. Firmware Development (ESP32)
Location: Bengaluru
Experience: 5 8 Years
Role Overview
We are seeking an experienced Embedded Firmware Engineer to design, develop, and maintain firmware for ESP32-based IoT systems used in fuel station automation. This role focuses on real-time device control, cloud connectivity, and ensuring high reliability in challenging field environments such as petrol stations.
Key Responsibilities 1. Firmware Development (ESP32)
- Develop and maintain embedded firmware using C/C++ for ESP32 microcontrollers.
- Implement device drivers and interfaces for fuel dispensers, tank gauges, sensors, and controllers.
-
Ensure stable and reliable device performance under real-world conditions such as network interruptions and power failures.
- Implement MQTT-based communication with cloud systems.
- Publish telemetry data (transactions, inventory, alarms).
- Subscribe to cloud commands (price updates, interlocks, configurations).
- Design efficient MQTT topic structures and payload formats.
-
Ensure reliable communication with retry logic and reconnection mechanisms.
- Manage Wi-Fi and Ethernet communication.
- Implement secure cloud connectivity using TLS/SSL protocols.
- Handle:
- Auto-reconnect mechanisms
- Offline/online state management
- Ensure low-latency device control and high reliability in field deployments.
- Manage concurrency using multithreading and RTOS (FreeRTOS).
-
Implement watchdog timers and fault recovery mechanisms.
- Diagnose and troubleshoot issues in live devices and communication systems.
- Support testing and deployment at real petrol pump locations.
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Collaborate with QA teams for validation and issue resolution.
- Work closely with:
- System Architects for solution design
- Cloud/Microservices teams for APIs and MQTT integration
- Strong programming skills in C/C++ (mandatory)
- Hands-on experience with ESP32 or similar microcontrollers
- Experience with FreeRTOS or similar RTOS
- Strong understanding of multithreading and memory management
- Hands-on experience with MQTT protocol (mandatory)
- Good knowledge of TCP/IP networking and secure communication (TLS/SSL)
- Experience with communication protocols:
- UART
- RS232 / RS485
- GPIO, SPI, I2C
- Ability to integrate with industrial hardware devices
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Key Skills
ESP32C++MQTTFreeRTOSTCP/IP
Industry
AutomotiveIndustrial Automation