Sagé Maenen
Talent acquisition
+31 (0)6 515 79 480
+31 (0)6 515 79 480
Are you a software engineer who thrives on technical challenges in the high-tech industry? Do you enjoy working in a team that develops software for complex systems with global impact? Then you might be the perfect fit for our Apeldoorn team.
At Sioux Technologies, we develop high-tech software that contributes to a smarter, safer, and more sustainable society. From our offices in Delft, Mijdrecht, and Apeldoorn, we serve as the strategic technology partner for clients looking to realize complex embedded systems and desktop applications.
Our strength lies in combining deep expertise in embedded software, C++ development, and C# desktop applications with strong domain knowledge in fields such as medical technology, semiconductors, and mechanical engineering
Our Position
At Sioux Apeldoorn, you’ll be working on smart, technically challenging software solutions for high-tech machinery used around the world. Think of systems in the packaging and semiconductor industry, where reliability, precision, and scalability are key. You’ll have the opportunity to really dive into the technical depths and help shape innovative technologies.
As a (Senior) Software Developer, you're involved in the entire development process: from design and implementation to testing and customer delivery. You’ll take ownership of the quality of your solutions and always consider how your work fits into the bigger picture. At Sioux, you’ll work in a technically stimulating environment, surrounded by experienced colleagues who are eager to share knowledge and grow together.
Your responsibilities include:
- Developing software for advanced machinery used in global applications.
- Writing and maintaining low-level control software (PLC – Structured Text).
- Developing PC-based applications for visualization, user interfaces, and communication using a .NET environment.
- Contributing to software architecture and design.
- Improving existing software modules and contributing to our internal software platforms.
- Collaborating with software engineers, system architects, and other specialists.
- Supporting integration and providing post-delivery services for customers when needed.
Your future workplace
Your Experience
- A completed bachelor’s or master’s degree in Computer Science, Embedded Systems, or a related technical field.
- At least 3 years of experience in a technical software environment, preferably within machine building or the high-tech industry.
- Experience with C# (.NET) and/or PLC development environments (Structured Text).
- Knowledge of UML software design, Agile methodologies, and version control tools such as Git or Mercurial.
- Strong communication skills in both Dutch and English, written and spoken.
You as a Professional
- You have strong technical and analytical skills.
- You enjoy collaboration and approach challenges with a solution-oriented mindset.
- You take initiative and feel responsible for delivering quality.
- You enjoy diving into technical depth and delivering meaningful results.
Our Culture
The Sioux office in Apeldoorn is a place where technical depth and engineering expertise take center stage. We work with a dedicated and experienced team on projects that have a global impact.
You’ll join an experienced, open-minded team where collaboration and knowledge sharing come naturally. We have strong ties with our clients in the Randstad region, resulting in close cooperation, short feedback loops, and a tangible impact.
At Sioux Technologies, you’ll work alongside top-notch engineers who, like you, are driven by a shared passion for technology. We offer:
- Internal training, coaching, and a generous personal development budget of €6,000 per year
- A vitality budget to support your personal well-being
- Varied work through diversity in technologies, markets, and projects
- A competitive salary and attractive secondary benefits
- Flexible working hours (32–40 hours per week), both from home and at the office
- An open culture focused on collaboration, learning, and having fun
At Sioux, we believe in the combination of high-tech innovation, enjoyment, and value creation. We could tell you all about our unique culture and exciting high-tech projects—but we’d rather let our people speak for themselves. Discover why Thijs, Ronald, and Ali chose Sioux, and how they continue to grow with us.