We are looking for the smartest among the smart.
Born technicians who combine drive with creative and professional expertise.

Who can use their extensive experience and insight to make a valuable contribution to the development of our Services and Utility Platform.
Our customers still challenge us to break down existing barriers, and we remain committed to boosting innovation. Our natural urge to innovate has resulted in a unique eBusiness infrastructure we refer to as our Utility Platform.

In our leading, technology-driven organization with an international, 24/7 character, you are surrounded by driven professionals. Siennites are enthusiastic, curious and always eager to gain more in-depth knowledge. In our challenging working environment training is a must rather than an extra. Besides that, working at Siennax is rewarded with an excellent salary and matching secondary conditions.

If you love your work and think you can contribute to the innovative strength of our company, please send your CV to This e-mail address is being protected from spam bots, you need JavaScript enabled to view it

Here you'll find an overview of all our current (Dutch) vacancies.