Firmware Engineer

Weheat; Duizel; On-site; EUR 55,000 - 75,000; Full time

Benefits offered by this job

33 holiday days

Flexible work options

High-end gear

Job summary

Weheat in Duizel is looking for a Firmware Engineer to develop the intelligent layer within our heat pumps. You will write embedded firmware in C/C++ that processes real-time data, optimizes systems, and improves energy efficiency.

You will collaborate with thermo, mechanical, control systems and software teams, debug embedded systems, run tests, and contribute to firmware architecture that enhances product quality and user experience, with on-site work in Duizel.

Qualifications

• 2+ years of firmware or embedded software experience in C/C++.
• Strong debugging and testing skills on embedded platforms.
• Interest in IoT, real-time optimization and energy efficiency.
• Excellent communication in Dutch and/or English.

Responsibilities

• Develop embedded firmware for heat pumps and real-time data processing.
• Optimize energy efficiency through firmware optimizations.
• Integrate IoT solutions and collaborate with hardware and software teams.
• Debug, test, and contribute to firmware architecture.

Skills

Embedded firmware

C/C++ programming

Debugging & testing

IoT & real-time systems

Team collaboration

Sustainability mindset

Tools

FreeRTOS

GoogleTest

protobuf

Modbus

OpenTherm

P1

Job description

At Weheat, we are building the next generation of heat pumps: cleaner, smarter, and affordable for as many households as possible. From our high-tech facilities in Duizel (Eindhoven region), we develop, test, and manufacture our own heat pumps—from initial concept to scalable production.

In Duizel, everything comes together: engineering, prototyping, testing, and production. You work here daily with other engineers, close to the hardware and real-world application. We work closely with our hub in Utrecht, but strongly believe in on-site collaboration when it comes to complex technology. Our culture is down-to-earth and ambitious, with a strong sense of ownership, short lines of communication, and a clear focus on progress.

Your role

As a Firmware Engineer, you develop the intelligent layer within our heat pumps. You write embedded firmware that processes real-time data, optimizes systems and improves energy efficiency. You integrate IoT solutions and translate complex algorithms into robust, reliable and scalable code.

You work closely with colleagues from thermodynamics, mechanical engineering, control systems, and software to solve technical challenges. You analyze and debug embedded systems, run tests and contribute to firmware architecture that directly impacts product quality and user experience. Every line of code you write helps households heat their homes more efficiently, without requiring any effort from the user.

This is you

• You are a pragmatic firmware engineer with a passion for embedded systems and sustainable technology:
• You have at least 2 years of experience in firmware engineering or embedded software in C or C++.
• You are strong at debugging and testing embedded systems.
• You are enthusiastic about IoT, connectivity and real-time optimization.
• You enjoy working in multidisciplinary teams and think along with colleagues from hardware and systems development.
• You are passionate about sustainable technology and innovation.
• You communicate clearly in Dutch and/or English.
• You are willing to work on-site in Duizel and contribute to building our embedded platforms together.

Nice to have

• Experience with FreeRTOS or another RTOS
• Familiarity with GoogleTest or a comparable test framework
• Knowledge of protobuf, Modbus, OpenTherm or P1
• Affinity with testing: unit tests, integration tests or hardware-in-the-loop

About Weheat

Weheat is re-engineering the heat pump from the printed circuit board up. Based in our Smart Factory in Eindhoven and our Commercial & Digital Hub in Utrecht, we combine high-tech hardware with intelligent software to accelerate the energy transition. We operate with a flat structure and a focus on scientific first principles: we value data over opinion and rigorous engineering over quick fixes.

What we offer

• At Weheat, you work on firmware with real impact, both technically and socially:
• Direct contribution to the energy transition through smart, efficient products.
• Working in a fast-growing cleantech scale-up with short lines, little bureaucracy and a high degree of responsibility.
• The freedom to make technical decisions and shape systems from the ground up.
• Close collaboration between firmware, hardware, controls and software teams in Duizel.
• Modern tools and testing facilities, including the ability to validate prototypes directly in practice.
• Market-competitive salary and good employment conditions, including 33 holiday days plus flexible options.
• High-end gear (laptop, phone) and a team that values substance and impact.