Hi there, my name is

Celestino

"The ticket guy"

Fast learner, passionate software developer with 20+ years of experience in the industry, proficient in Java (1.3-19) and web development. I really like to experiment with new technologies and frameworks. My main job is helping Claranet Switzerland’s customers to optimize and package java applications to run in the cloud.

Why "Ticket guy"?

8 years ago I have co-founded an open source project (Alf.io) for managing registration and check-in of attendees at conferences. The project is currently being used by some of the biggest dev conference in Europe (Devoxx BE, Devoxx UK, Devoxx FR, Spring I/O, and several Voxxed Days). I’ve also founded a company to give commercial support to those conference organizers. This has become my side job.

If you have attended one of those conferences, it’s possible that you have met me at the check-in desk. If you will in the future, come and say hi!

Some speakers refer to me as “The ticket guy”, because I usually manage the “Speakers and troubleshooting” line at check-in. Now you know the reason why my website has this weird title.

Here are a few technologies I've been working with recently:
  • Java
  • SQL
  • Docker
  • Angular
  • Nativescript
  • Bootstrap
  • Kubernetes
  • AWS
  • GCP

Projects

Alf.io
Java Docker Angular PostgreSQL
Alf.io
Alf.io is a free and open source event attendance management system, developed for event organizers who care about privacy, security and fair pricing policy for their customers. It features an ecosystem of tools to cover the lifecycle of an event from ticket distribution, to event management, to reporting.
Voxxed Days Ticino
Community Conference
Voxxed Days Ticino
I've contributed to the bootstrap phase of this conference based in the beautiful Lugano, Switzerland, close to where I live. Every year 300 developers from the region (Ticino) and northern Italy join for a day of networking and high quality content, with selected speakers coming from all over the world
Voxxed Days Zürich
Community Conference
Voxxed Days Zürich
I've contributed to the bootstrap phase of this conference based in the largest city of Switzerland, Zürich, also world-renowned for its banking and finance sector and for its huge startup ecosystem. Every year 600+ developers join for a day of networking and high quality content, with selected speakers coming from all over the world