Ernst Mulders is an Amsterdam based Software Engineer

Currently available for freelance work

My experience includes Mobile applications (React-Native, Android Java), front-end web development (HTML, CSS, JS and React), back-end application development (PHP, Symfony) and product development.

Some of my clients


CJP provides (cultural) discounts for students and people under the age of 30. With their app users can locate the discount, and show their discount card.

Mijn Gemeente

Information applications for over 45 Dutch municipalities. The app helps civilians to engage more with their municipality and receive clear information on topics such as garbage collection.

Dierenpark Amersfoort

Dutch zoo for which I helped develop and maintain their mobile applications. Application helps park visitors to get the full experience.


Dutch E-Bike startup. Development of their website and online shop.

Gemeente Zwijndrecht - Speeltuinchef

Web application that helps citizens to participate in the process of designing new playgrounds in their neighborhoods.

TU Delft

Various projects including the Research Exhibition and the apps for their yearly student introduction week: OWee.

European Youth Card

Discount and card application for EYCA and their members throughout Europe (France, Portugal, Slovenia, Scotland, Belgium and more).


Application for reporting network disturbances, as well as receiving information of ongoing disturbances.


Helped Knaek, the biggest student discount app in the Netherlands and Belgium, with their applications and transition from physical product to an app.

Why work with me?

Convinced? Get in touch!

Feel free to reach out to me through my LinkedIn page or Twitter profile. Through those channels I'll provide you with my e-mail and/or phone number!