Embedded Software Developer in Conscensia

Requirements

• Experience: 5+ years
• C / C++ — 5+ years
• Experience in CMake
• Experience in STM32
• Experience in ARM
• English — Upper Intermediate

Client:
OJ Electronic is a successful manufacturer of electronical products within ventilation and floor heating. The company is in the southern part of Denmark and has ~190 employees. We export 95% of our production outside Denmark, primarily in the North American and European markets. The R&D department at OJ is ~40 engineers and technicians. A big part of our products we develop is SW, both on the embedded and cloud side.
Company website ojelectronics.com
About products:
HVAC products (ojelectronics.com/hvac): Advanced ventilation controllers with sensors, embedded Linux, TCP/IP, Modbus and Bluetooth LE interface.
Floor heating products (ojelectronics.com/floorheating): Smart thermostats for electrical underfloor heating, with cloud services, integration with home automation systems, voice control with Amazon Alexa and Google home.
We expect you have:

• Experience with programming embedded microcontroller products (from 8 bit to 32 bit processors) using C and/or C++ (preferably C for HVAC and C++ for FHEL)
• Managed to build systems such as MAKE / CMAKE
• “Bare-metal” embedded development (without any operating system) within real-time applications
• Automated unit testing using gtest or similar
• UART, SPI, I2C, Single-wire-UART
• Hardware-level debugging (oscilloscopes, using test points to verify behavior, etc.)
• UML to visualize architectural software design, and how to use software design patterns
• Experience with the scrum process and working in scrum team
• Familiar with Git for source code control and Git Flow (branch/merge strategy)

Nice to have:

• Use of CI/CD environments (ideally using GitLab + jFrog)
• Automated integration testing
• Designing and deploying embedded devices with Bootloaders
• Embedded performance engineering (design decision for constrained devices)
• Using Docker containers for building environment

Personal Competences

• Extrovert / outgoing personality
• Strong communicator, able to communicate with team local and distributed location
• Positive/constructive mindset
• Strong in English, writing and verbal

FHEL Embedded Team — Specialized Competences (Nice to have)
It will be a big plus / benefit if you have one or more of the following skills / competences:

• Real time operating systems like e.g. FreeRTOS
• Touch Displays + GUI Frameworks (E.g. VGDD / TouchGFX)
• Familiarity with STM32 chips (new Thermostats) and/or Microchip 8/16 series (old Thermostats)
• Modbus protocol standard (modbus.org)
• Control Systems (E.g. PID regulation: en.wikipedia.org/wiki/PID_controller)
• WIFI chip / drivers, focusing on TCP/IP communication (TLS)
• Bluetooth LE chip / drivers communicating with mobile devices
• Apple Home Kit integration on embedded microcontroller product (en.wikipedia.org/wiki/HomeKit)
• Matter over WIFI / Matter over Thread on embedded microcontroller product (en.wikipedia.org/wiki/Matter(standard))

HVAC Embedded Team — Specialized Competences (Nice to have)
It will be a big plus / benefit if you have one or more of the following skills / competences:

• MQTT (mqtt.org) — Used for some of our HVAC controllers
• BACnet (www.bacnet.org) — A HVAC protocol used in our products
• HTML, Javascript, CSS (basic web development) — Since our HVAC controller has an embedded webserver on board.
• Modbus protocol standard (modbus.org)
• Familiarity with Renesas RX 630 series + ARM processors (HVAC controllers) and/or Microchip 8/16 series (for sensors)
• Control Systems (E.g. PID regulation: en.wikipedia.org/wiki/PID_controller)
• Linux / Embedded Linux — Since our advanced HVAC controllers runs a big part of the application on embedded Linux
• Yocto build pipeline for Linux
• Developing software and low level drivers for embedded Linux
• Bluetooth LE chip / drivers communicating with mobile devices

At Conscensia we offer
A challenging and stimulating job for an international client
Talented colleagues and an informal, friendly work environment
Employee training and certification programs
Team building and social events
Short Fridays, till 15:00
20 paid business days off per year
20 workdays absence due to sickness per year
Medical insurance at the company cost