Hi, I’m Thomas.
Freelance Flutter developer
Freelance Flutter developer
From patient records to racing games: apps where the details matter.
Health and finance taught me to be careful. Games taught me to make apps performant and enjoyable to use. Years of agency work taught me to adapt to any team and any brief.
The app home-care nurses use on their rounds. Built offline-first, so visits work without signal. Nurses, GPs and hospitals share one patient record. Senior mobile developer.
Native Android app, the first in Belgium to use PSD2 bank APIs. Certificate pinning, encryption and biometric login. Main Android developer.
Started as a graduate programmer at Boss Alien and ended as the sole engineer responsible for the game. Worked with Google Play’s editorial team to get it featured.
Crowdsourced weather app for NoodweerBenelux, via This Might Work. Lead developer, Flutter and Firebase.
A selection, newest first. Some client work can’t be shown.
Working on Belgium’s largest patient portal (1.5M+ patients).
Offline-first app for home-care nurses on phone, tablet and laptop. Visits work without signal, and nurses, GPs and hospitals share one patient record.
Crowdsourced weather app. 3,000+ downloads and 10,000+ weather observations in its first 5 days.
Mobile apps and Firebase environments for azuleo and its parent company Steylaerts.
Social fashion shopping app with Instagram integration. Featured in Knack, Marie Claire, Elle and Feeling.
22,000+ online attendees, private video chat rooms and a VIP area.
3,700+ attendees at an online commemoration, with virtual seating and rose-laying.
The first tourist app combining Bluetooth and LiFi, with content unlocked fully offline.
Delivered in under 2 weeks and used by 90%+ of attendees.
Augmented reality experience for a healthcare campaign, built in Unity in collaboration with Mackevision.
Launch partner for Google Assistant in Belgium, in Dutch and French.
#2 trending on Google Play in launch week, 25%+ day-7 retention. Kunstmaan’s first production Flutter app.
Internal office app with Slack sign-in and Bluetooth beacons. It led Kunstmaan to offer Flutter to clients.
Native Android app, the first in Belgium to use PSD2 bank APIs. Certificate pinning, encryption and biometric login. 18 months as main Android developer.
3,200+ LEDs and 5 ultrasonic sensors, interactive in the Kunstmaan Leuven entrance hall.
Cancelled before launch. Analytics integration, Ant-to-Gradle build migration and OBB expansion files.
30M+ downloads. Editor’s Choice on Google Play and the App Store.
Ended as the sole engineer responsible for the game, and worked with Google Play’s editorial team to get it featured. 150M+ downloads, 5M+ multiplayer races a day.
Underground positioning for smartphone and smartwatch. Alcatel-Lucent Bell MSc Thesis Award 2014.
A ball steered by water pumps. 2nd People’s Choice award at UIST 2013.
60,000+ downloads. Recommended by the Dutch National Choir Federation.
I join your team, or your agency’s, and add what’s missing: Flutter and mobile experience.
You tell me about the project, the team and the people using it. I tell you honestly whether Flutter fits, and whether I do.
I learn your codebase, tools and users: who uses the app, where, and what goes wrong for them. That’s how I flag risks early instead of after the deadline.
Standups, code reviews, releases: I work the way your team works, with the tools it uses, and share what I know along the way.
“Stockx is a highly adaptable programmer who continuously owns and delivers in every aspect of his role. He has led the development of key features and also drives the adoption of cutting edge platform specific technology into the games.”
“Stockx always has one finger on the pulse of the game and the tools used to create it. He regularly alerts me to new opportunities to work with platform holders on the latest technology to remain at the cutting edge of game development.”
I’m Thomas. I live near Hasselt and work hybrid or remote, in Dutch or English.
Code is quick to write these days. From day one, I do more than that: I join the discussions, give honest feedback on the UX and get invested in the app itself. Knowing the users and the domain takes longer, so I like to stay with a team for the long run.
A few lines is enough: the project, your team, the timeline, and what you need from me.