Embedded Hardware & Firmware Engineer

Heidi Chef Solutions LLC; Quezon City; On-site; PHP 334,800 - 558,000; Full time

Job summary

Heidi Chef Solutions LLC is seeking a mid-level Embedded Hardware & Firmware Engineer in Quezon City, Philippines. The role entails developing firmware for microcontroller systems, focusing primarily on embedded C development, digital interfacing, and IoT communication standards such as MQTT. Candidates should have over 3 years of experience in embedded systems and be proficient in debugging hardware and firmware issues. Join our innovative team to contribute to exciting projects in the IoT space.

Qualifications

• 3+ years experience in embedded systems or firmware engineering.
• Strong proficiency in Embedded C.
• Experience with Microchip and/or Atmel Microcontrollers.

Responsibilities

• Develop and maintain embedded firmware in Embedded C.
• Integrate MQTT-based communication for telemetry and control.
• Support hardware bring-up, board validation, and troubleshooting.

Skills

Embedded C

Embedded systems or firmware engineering

Microchip and/or Atmel Microcontrollers

Digital electronics and embedded hardware

MQTT communication

RTOS concepts

Debugging hardware and firmware

Tools

JTAG/SWD debuggers

Logic analyzers

Oscilloscopes

Job description

Quezon City CPO, Philippines | Posted on 27/04/2026

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
  • 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

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)