Embedded Firmware Engineer: Real-Time Heating Controls

OJ Electronics A/S

Sønderborg

On-site

DKK 600,000 - 750,000

Full time

3 days ago
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Job summary

OJ Electronics A/S in Sønderborg, Denmark, is hiring a hands-on embedded software engineer to help develop real-time systems for energy-efficient heating solutions. You will work alongside hardware and cloud teams from idea to shipped firmware, tackling challenges in wireless communication, display technologies, and control-system engineering.

This on-site role requires C/C++ proficiency for embedded systems, experience with microcontrollers and RTOS, and strong debugging and documentation

Qualifications

  • Proficiency in C/C++ for embedded systems.
  • At least three years of work experience in embedded software development.
  • Experience with microcontrollers and real-time programming (FreeRTOS and/or bare metal).
  • Familiarity with embedded debugging tools (e.g., oscilloscopes, JTAG).
  • Understanding of hardware/software interfaces and schematics/datasheets.
  • Version control (Git + Git Flow) and CI/CD experience.
  • Knowledge of communication protocols (UART, I2C, SPI).
  • Strong problem-solving and debugging skills.
  • Strong written and spoken technical English.
  • Team-oriented and agile collaboration experience.
  • Willingness to work on-site in Sønderborg; remote not possible.

Responsibilities

  • Develop embedded C/C++ code for microcontrollers.
  • Integrate software with custom hardware.
  • Contribute to system design and architecture.
  • Maintain code quality through testing and refactoring (unit and integration tests).
  • Participate in agile ceremonies and code reviews.

Skills

Embedded C/C++
Microcontrollers
System design and architecture
Testing and refactoring
Agile ceremonies and code reviews
English technical communication

Tools

Git
CI/CD

Job description

OJ Electronics A/S in Sønderborg, Denmark, is hiring a hands-on embedded software engineer to help develop real-time systems for energy-efficient heating solutions. You will work alongside hardware and cloud teams from idea to shipped firmware, tackling challenges in wireless communication, display technologies, and control-system engineering.

This on-site role requires C/C++ proficiency for embedded systems, experience with microcontrollers and RTOS, and strong debugging and documentation

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