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Senior Embedded Engineer

India, Bangalore South · Job Posted May 03, 2026
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Job Description

We are seeking a hands-on Senior Embedded Engineer with 5-8 years of experience to design and develop firmware for ESP32-based IoT devices deployed at petrol pump sites. The role involves building reliable, real-time firmware capable of communicating with cloud microservices via MQTT and controlling forecourt devices such as fuel dispensers, tank gauges, and sensors. The ideal candidate must be strong in embedded C/C++, networking, MQTT, and field-level device integration.

Job Responsibility

  • Develop and maintain ESP32 firmware using C/C++
  • Build drivers and interfaces for fuel dispensers, tank gauges, sensors, and controllers
  • Ensure firmware stability under challenging field conditions (network drops, power issues)
  • Implement MQTT-based publish/subscribe communication with cloud microservices
  • Design efficient MQTT topics, payload formats, retry and reconnect logic
  • Manage Wi-Fi/Ethernet connectivity, TLS security, and offline/online states
  • Ensure real-time performance, low latency control, and system reliability
  • Handle concurrency, multi threading, RTOS tasks, watchdog timers, and fault recovery
  • Diagnose and troubleshoot issues in live field devices
  • Participate in onsite testing at petrol pump sites
  • Collaborate with System Architects, Cloud/Microservices teams, and QA

Requirements

  • 5-8 years of experience in embedded systems development
  • Strong hands-on experience with ESP32 or similar microcontrollers
  • Strong programming expertise in C/C++
  • Experience with FreeRTOS or similar real-time operating systems
  • Understanding of multithreading, memory management, and concurrency
  • Strong knowledge of MQTT protocol, TCP/IP networking, and TLS/SSL security
  • Hands-on experience with serial protocols: UART, RS232/RS485, GPIO, SPI, I2C
  • Ability to interface with industrial devices and field hardware
  • Experience working on production-grade embedded devices
  • Strong problem-solving and debugging abilities
  • Ability to work in field-driven, real-world environments
  • Ownership mindset with good communication and teamwork

Nice to have

  • Experience in industrial automation, especially fuel systems
  • Exposure to edge computing and gateway-level processing
  • Experience with OTA updates, device provisioning, or secure device onboarding
  • Familiarity with embedded Linux (optional)
  • Knowledge of device monitoring, diagnostics tools, and reliability frameworks

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