Speakers_

Daniel Stenberg

Daniel is the founder and lead developer of cURL—the ubiquitous command-line tool and library for transferring data—and he’s been pioneering open-source solutions for decades. His passion for reliable, easy-to-use software has powered countless devices and systems around the globe. At Joy of Coding, Daniel will share his journey through the world of data transfer, offering inspiring stories, hands-on demos, and actionable insights. Get ready for a session packed with practical tips and lively anecdotes to fuel your own coding adventures!

Sara Vieira

Sara Vieira is a front-end developer with a knack for making tech playful, Sara is all about pushing boundaries in JavaScript, React, and design. She loves showing how a touch of creativity can turn even the simplest code into something delightful and unexpected. Join us at Joy of Coding, where Sara will share her passion for lively, accessible development and remind us all that coding can—and should—be fun. Prepare for a talk brimming with inspiration, practical demos, and that unmistakable spark of curiosity to level up your own projects!

Paco van Beckhoven

Paco is a passionate and experienced software engineer who loves improving the way we build software. As a senior software engineer at Hexagon, he focuses on refining development processes and championing better software quality. Paco regularly speaks at conferences, where he combines education and entertainment to inspire and engage his audiences. At Joy of Coding, he’ll share his expertise on transforming code reviews from frustrating chores into collaborative, efficient, and constructive experiences. Expect to leave with fresh insights and practical tips to elevate your own development practices!

Alexander Chatzizacharias

Alexander is a software engineer at JDriven with a unique blend of Dutch and Greek roots—and an even more unique perspective on coding. With a master’s in Game Studies from the University of Amsterdam, he’s on a mission to bridge the gap between game development and software engineering. Alexander believes these two industries have a lot to learn from each other, and he’s passionate about integrating their technologies and methodologies to push boundaries in the tech world.

Bert Hubert

Bert Hubert is an inspiring speaker known for his passion for technology, engaging storytelling, and deep technical expertise. As the founder of PowerDNS and an advocate for open-source innovation, Bert combines humor, real-world insights, and fascinating topics — like the intersection of computing and biology — to inspire and ignite curiosity in his audience. His relatable, down-to-earth style makes him the perfect speaker to celebrate the creativity and Joy of Coding.

Shirley Tarboton

Shirley Tarboton is an insightful speaker who brings a fresh perspective to the intersection of software development and sustainability. With her technical expertise and insights, she empowers audiences to think differently about how they write and optimize code, offering insights to make software more energy-efficient. Shirley's passion for creating a greener future through technology makes her a perfect fit for Joy of Coding, inspiring developers to embrace their role in building a sustainable digital world.

Hannes Mühleisen

As the co-creator of DuckDB—an in-process analytics database that’s all about speed and simplicity—Hannes brings a fresh perspective on data analysis and systems architecture. He loves exploring clever solutions that merge theory and practice in remarkable ways and never shies away from making the impossible possible. Join us at Joy of Coding to hear Hannes share his passion for (big!) data, smart optimizations, and modular software. Get ready for a talk brimming with inventive ideas, hands-on demos, and actionable insights to power up your own coding and data adventures!

photo by D. van Zuijlekom

Dave Borghuis

Dave Borghuis has been a passionate advocate of digital creativity and is a familiar face in the demoscene — a unique subculture where code becomes art. His journey began in the era of the Commodore 64 and Amiga, where he started exploring the exciting intersection of programming, visual design, and music.

From his early days coding on the Commodore 64 to co-authoring the successful application that led to the demoscene being recognized as intangible cultural heritage, Dave has always believed that code is more than just functional. For him, it’s expressive, playful, and sometimes even poetic.

Whether you’re a nostalgic hacker or a curious coder, Dave will show you how limitations can spark creativity—and why the demoscene, with its scrolling text, chip tunes, and joyful geekery, still matters today.