Our Team
Connect toOur International Team
With offices situated in Amsterdam, we have recruited an international team working out of both the Netherlands and Cyprus. Our interdisciplinary team is made up of software engineers, designers, and product managers who have been in the industry long enough to develop a flexible and diverse set of skills, perfect for tacking the unpredictable and complex nature of our work.
Meet the Team
Siem Vaessen
Managing Director
Specialisation
Data Lifecycle Strategy & Open Data Systems
Capabilities
- Data product strategy & innovation
- Open data ecosystem development
- Machine learning & data visualisation integration
Stefanos Hadjipetrou
Software Developer
Specialisation
Scalable System Architecture & Middleware Engineering
Capabilities
- Technical architecture design & implementation
- Full-stack web application & API development
- DevOps practices & developer mentoring
Sylvan Ridderinkhof
Data Engineer
Specialisation
Data Engineering & Information Infrastructure
Capabilities
- Data pipeline architecture & integration
- Data transformation & optimisation
- Data reliability, quality & reusability improvement
Aylin Paçacı
UI/UX & Data Visualisation Designer
Specialisation
Human-Centred Data Experience Design
Capabilities
- Product-service system design
- Data visualisation & information design
- Brand and digital ecosystem development
Okechukwu Samuel Owhondah
Frontend Developer
Specialisation
High-Performance Frontend Systems & UX Implementation
Capabilities
- User interface engineering & workflow design
- Frontend performance optimisation
- Scalable, maintainable code architecture
Cecilia Wallén
Marketing Speclist
Specialisation
Strategic Digital Marketing & AI-Driven Growth Capabilities
Capabilities
- Multi-channel campaign strategy & execution
- AI-powered marketing automation & personalisation
- Performance analytics & conversion optimisation
Work with Us
If you’re passionate about data and technology and want to solve new, complex problems every day, this could be the place for you. We challenge the status quo, encourage critical thinking, and learn continuously — together.
You’ll work on designing and building data-driven products across visual design, data visualisation, and user experience. Our work helps organisations — locally and internationally — unlock the value of their data and make informed decisions that create real impact.
If you’re interested in joining Zimmerman but don’t see a role that matches your profile, you’re welcome to register your details for future consideration below. You can also follow us on LinkedIn to stay informed about new openings.
There are currently no job openings at Zimmerman.
Need to make complex data usable?
Tell us what you’re trying to publish, explore, or standardise—and what constraints you’re working with. We can help shape the right approach, from discovery through delivery.
Consultation Request Form
Direct Contact
Location
HQ — Amsterdam
Keizersgracht 520
1017 EK Amsterdam
The Netherlands