About Tweede golf
We are a close group of engineers and developers with a background in cyber security, mathematics and computer science. We find it important to work in an environment in which we continuously improve our engineering skills and challenge each other. At the same time, we are a long-term agency: for colleagues as well as for our clients. As far as we are concerned, attention for each other is the key.

Our domain is safe software: writing safe and privacy-friendly software is the common theme in all our work. We're here to make sure security is a thing from the get-go, not an afterthought.
We operate best in situations with a high degree of uncertainty, where we help convert novel ideas or technologies into safe, production-ready software. We do that for (and in collaboration with) universities & foundations. tech start-ups and governments.
Our open-source toolbox includes Node.js, Rust & Embedded Rust, Go, React, Symfony and Flutter and on the operations side, Docker, Ansible, and Kubernetes, among others.
How we see the world.
Now that our lives have become highly digitalized we experience the consequences of unsafe software and poorly protected data every day. It is about time to reevaluate our priorities.
We believe that the design of safe and privacy-friendly software is the responsibility of all software builders, whether you are a freelancer, an agency or big tech.
Security and privacy thus become the domain of software makers, not just that of pen testers and consultants.
An ounce of prevention is worth a pound of cure - even more so in software.
Erik
- Co-owner & Software engineer
- erik@tweedegolf.com
He facilitates, takes a helicopter view, monitors interests and connects. He is the keen analyst who asks exactly the right questions. Having studied physics and philosophy, he ended up in software through a detour. Wit…Read more
Henk Dieter
- Embedded software engineer
- henkdieter@tweedegolf.com
Henk Dieter, HD for short, came across Tweede golf through his interest in Rust, Stack Overflow's most loved language for six years in a row. He wrote his thesis on a decentralized stake pool for Ethereum and was lead d…Read more
Marlon
- Co-owner & Lead developer
- marlon@tweedegolf.com
Marlon is always working on software development, from DevOps to UX. That also applies at home. Whether it's the lights, the mechanical ventilation, the central heating or the alarm, everything has to be automated. He is…Read more
David
- Security software engineer
- david@tweedegolf.com
David made the switch to Tweede golf in the fall of 2020. His goal: to contribute to the privacy and security-related projects at Tweede golf, work he previously performed for the Privacy by Design Foundation as one of t…Read more
Marlon
- Backend developer
- marlonpeeters@tweedegolf.com
Yes really, a second Marlon. And a very special one at that. Marlon likes a challenge. He functions best in a close-knit team where the bar is set high. Collaboration is very important to him and he wants to continue to …Read more
Tinka
- HR medewerker
- tinka@tweedegolf.com
Where would we be without Tinka? She focuses on the well-being and (personal) development of her colleagues. In addition, she takes care of all earthly matters so that the techies can do their programming. She graduated…Read more
Dion
- Embedded software engineer
- dion@tweedegolf.com
Dion is the newest addition to Tweede golf's embedded team. He is an experienced Rust and embedded software developer who previously worked for 247TailorSteel to optimize their production process. At Tweede golf, he will…Read more
Hugo
- Co-owner & Business developer
- hugo@tweedegolf.com
Hugo is Tweede golf's first point of contact for the outside world, responsible for business development, account management and hiring. He is also project lead in the team that works for Soil Heroes. He studied Mathema…Read more
Bram
- Backend developer
- bram@tweedegolf.com
Bram gained eternal fame as the founder of Frietopia, an advocate of the Dutch fries culture. He studied computer science and philosophy at Radboud University and has been working at Tweede golf for years. He’s a very e…Read more
Daniel
- Front-end developer
- daniel@tweedegolf.com
Daniel is a developer and researcher with a heart for open source. He wrote an open-source library for linking MIDI instruments to a web page when most of us were still finishing high school. His library was picked up an…Read more
Arjen
- Security software engineer
- arjen@tweedegolf.com
In 2021, Arjen made the switch to Tweede golf. As an expert in the field of security with a background in pentesting, he mainly focuses on IRMA and other security-related projects. In addition, Arjen wants to broaden his…Read more
Wouter
- Embedded software consultant
- wouter@tweedegolf.com
Wouter's hobbies? Compilers, electronics and playing with OpenGL. But he can also be found regularly in Grip boulder hall, just like Marlon. He’s a senior developer with in-depth knowledge, the type you pick first on you…Read more
Folkert
- Embedded software engineer
- folkert@tweedegolf.com
Folkert is a real Rust enthusiast and that makes him a perfect fit for the team. He wants to focus primarily on applying Rust within embedded issues and low-level programming in general in which he feels completely at ho…Read more
Len
- Business developer
- len@tweedegolf.com
Len supports Hugo and Erik in sales, business development and marketing. He combines his part-time job at Tweede golf with his studies in Business Administration. In his work he is energetic and likes to get things done…Read more
Rick
- Intern embedded software
- rick@tweedegolf.com
Through the annual company orientation day of his university, Rick discovered that Tweede golf develops embedded software in Rust, the language that would later become his favorite. He started doing a full-time interns…Read more
Ruben
- Software Engineer
- ruben@tweedegolf.com
Ruben can rightfully be called a full stack developer, with many years of experience. He knows a lot (a lot!) about many different techniques. He watches over the architecture of applications and does not accept half-bak…Read more