Embedded Hardware & Firmware Engineer at Unified… · Quezon…

Role Overview

We are looking for a mid-level Embedded Hardware & Firmware Engineer with hands-on experience developing firmware for microcontroller-based systems. The role focuses on embedded C development, digital interfacing, and connected embedded devices, including systems that communicate via RS485, Ethernet, MQTT and other IoT standards.

PCB design is not a requirement, however the engineer must have a solid understanding of electronics and schematics to support hardware bring-up, debugging, and production support.

Key Responsibilities

• Develop and maintain embedded firmware in Embedded C

• Work with Microchip (PIC / dsPIC) and Atmel / Microchip AVR / ARM microcontrollers

• Implement and debug digital interfaces:

  • UART / USART
  • SPI
  • I²C
  • GPIO, timers, PWM

• Integrate MQTT-based communication for telemetry, control, and device status reporting

• Develop firmware on bare-metal and RTOS-based systems (e.g. FreeRTOS)

• Support hardware bring-up, board validation, and field issue troubleshooting

• Read and interpret schematics, datasheets, and reference designs

• Work closely with hardware engineers and system architects to resolve hardware/firmware interaction issues

• Use debugging tools such as JTAG/SWD debuggers, logic analyzers, and oscilloscopes

• Produce clear technical documentation for firmware behavior, interfaces, and deployment

Requirements

Required Skills & Experience

• 3+ years experience in embedded systems or firmware engineering
• Strong proficiency in Embedded C
• Experience with Microchip and/or Atmel Microcontrollers
• Practical understanding of digital electronics and embedded hardware behavior
• Experience implementing MQTT in embedded devices (publish/subscribe, QoS, reconnect handling)
• Experience with RTOS concepts (tasks, interrupts, queues, timing, memory constraints)
• Ability to debug issues spanning hardware, firmware, and communications
• Comfortable working with constrained systems (CPU, memory, power)

Preferred Experience

• Experience with ARM Cortex-M platforms
• Familiarity with TCP/IP stacks on embedded devices
• Exposure to IoT platforms or cloud backend (MQTT brokers, device management)
• Ability to review PCB schematics/layouts for firmware impact (no design required)
• Experience with version control (Git)