Flying

When I did my first introduction flight on a glider in 2005, I instantly knew it: I wanted to learn how to fly. Ever since, I've enjoyed every step, from the thrill of my first solo flight, up to long cross-country flights and participating in gliding contests, flying all over Europe. With gliding, I have a strong affection with the possibility of always having a new challenge, have a new goal, continuously learn new things and raise the bar.

I really like to link this to my work profession. Trying to see things from a different angle. Don't fear to think out of the box and face new challenges.

What's gliding all about? Gliding is amongst the most accessible ways of getting into aviation. In my opinion it's also the purest form of flying. Lot's of experienced airline pilots still like to go gliding in their spare time weekends. Even the famous astronaut Neil Armstrong, first man on the moon, concluded at the end of his life that of all the forms of flying he enjoyed gliding the most.

In a glider, you don't have an engine. So when you want to fly for longer durations you basically use rising air. These 'thermals' form when the sun heats the earth, which in result heats the air above it. When you go circle in this rising air you can stay aloft for hours. You can fly from thermal to thermal, covering huge distances. Basically, you're flying on solar energy!

Sailing

Over the last few years I picked up sailing again, something I've learned in my childhood. I immediately got hooked. There are so many similarities with glider flying, but for me, sailing is also more relaxing and something I can do on my own at any moment.

I also enjoy learning all technical aspects of working on boats. After having renovated my first, am now working on my second small sailing yacht, while sailing on it during the summer of course!

I like sailing either solo, together, or with friends on my boat on the beautiful waters of Friesland. Nothing beats waking up on the boat on anchorage, take a morning swim, make some coffee and go for a nice day of sailing.

iGlide & iPilot

iGlide and iPilot are moving map navigation apps for iPhone and iPad. The apps offer many functions for beginning pilots starting their first steps flying cross country up to seasoned pilots in compelx competitions. It's clear, easy to use and simple. iGlide & iPilot provide overview to pilots, even in highly complicated situations. It reduces the pilot's workload and increases airspace awareness.

In 2023 I have taken over ownership of the iGlide app series from AIR Avionics.

• Read the AIR Avionics Press Release here.
• Visit the new iGlide website at iglide.app.

Space Leap

Space Leap was a startup that I builded together with a great and passionate team. We focussed on autonomous drone delivery. Delivering urgent goods between logistics hubs, hospitals, disaster areas, remote locations.

• Gained experience at startup accelerators, startup events and fundraising, participated at Pioneers.io, applied to Y Combinator.
• Developed Unmanned Aircraft Systems (UAS).
• Development start of Real Time Kinematics (RTK) system running on mobile platforms providing very precise GPS location accuracy while using low-cost GPS hardware.
• Development start of automated drone landing and payload loading system.

Tizin

Since 2010 I've been working in a partnership with Tizin BV. Together we have been working on a wide range of projects. It included projects as well as building challenging proof of concepts, where I could fully use my expertise on the iOS platform.

Notable projects like Guard-Mandown are listed on the portfolio.

Proof of concepts include:

• Research and technical implementation of secured methods for user identification in mobile payment systems
• Secured communication with external webservices
• Building a APNS Push-notification system that can be used in later apps
• Utilizing iOS multitasking on apps that control critical processes, including personal safety alarming apps
• Research on code distribution and integration methods for 3rd party apps
• Research on iOS GUI building for white label apps

For reference, please visit Tizin at tizin.nl.

GripTools.io

Working together with Friesland AV on GripTools.io resulted in great products.

Projects include:

• iXplorer: Development of a native iPhone "remote control" app and a Mac OSX application to communicate with the mobile app in 2009
• iXplorer AR: Development of a native iPhone app for real-time motion capturing. Utilizing the gyro, accelerometer and compass sensors on modern iOS devices as a full inertial measurement unit
• Development of various motion capture systems for Windows & Mac. Related aspects like 3D simulation of various motion platforms (airplane, helicopter) and hardware interfacing
• Active in development of 3D-chromakey principle
• Work on efficient and effective real-time filtering methods
• Development of automated payment methods using Paypal IPN (Instant Payment Notification system)
• Development of a system for automatically generating PDF invoices

Learn more about GripTools.io

GliderTracking

Forming a team with two friends in 2009, we started GliderTracking with one goal: make our sport more visible.

Gliding is a wonderful sport, but very difficult to explain to family and friends. You can see gliders in competitions only during take off and after 5 hours the pilots return to the same airport as where they departed. Where are all the competition pilots? Do they have enough altitude to make it home? What are the average speeds? How far do they have to fly?

With the latest technology it is possible to track/follow all gliders (equipped with a Mode-S transponder) during a competition, which is exactly what GliderTracking does. Other tracking technologies like SPOT satellite trackers and cellular trackers are also supported (and combined) on GliderTracking.

The existing wish lasts to visualize the sport of gliding to the general public. Live tracking is very suitable to pursuit this goal. Public at home and on the competition site can follow the pilot, like you are in the middle of it. GliderTracking was launched as a beta tracking system in 2011 during the Dutch National Gliding Championships, held at airport Terlet.

Go to glidertracking.com learn everything about it!

S-Connect: connecting Model S vehicles and drivers

Stay tuned, more info on this exciting project will be published soon!

GliderGame

Starting as an OpenGL 3D arcade-style gliding simulator on Windows in 2009:

GliderGame development has evolved to a 2D game the iOS platform in 2012. In 2014 it evolved to a 3D game using technologies released in iOS 8.0. Screenshot of the iPad version:

More news expected soon!

Socie

Pioneering development back in 2013, responsible for the first iOS versions for Socie: a platform for clubs and communities. Socie is still thriving to this day and has grown to be one of the most popular community platforms.

Learn more about Socie and see how it has evolved: https://www.socie.nl/

Some nostalgic screenshot of one of the early iOS versions:

b-like

iOS Development for the b-like project. Later work for b-like includes Product Ownership for the initial "b-like Football" concept. With this project we took b-like to the next level by providing users with dynamic AI-powered ratings.

Learn all about the b-like Sports Education app

SoH Calculator

I developed an iOS app to quickly assess the battery State of Health (SoH) of any Tesla Model 3 vehicle. It's a perfect tool for owners and used EV buyers. The app provides instant insights with no long tests, OBD dongles, or hassle required.

The app is currently live in the App Store:

Guard Mandown

In partnership with Tizin I've been Lead iOS for the Guard app. Since 2025 I've partnered with New Bridges on this project.

• Learn everything about Guard Mandown, providing employee security with alerting service

MyOrder

In partnership with Tizin I've worked on multiple projects for (Rabobank) MyOrder:

• MyOrder Sidekick: a new iPad app developed from the ground up. This app was being used as a loyalty systems for retail store owners. The system pioneered in using iBeacon technology for store owners to identify customers in their store. Learn more about it: https://www.iculture.nl/nieuws/rabobank-gaat-met-myorder-sidekick-winkels-aan-ibeacons-helpen/
• A native iOS library used as payment module within the MyOrder app
MyOrder | Mobile payments, including parking and fuel payments

iXplorer AR

Full development of the iXplorer AR app in 2017/18. Leveraging Apple's latest Augmented Reality tech, I created iXplorer AR as a very powerful, real-time, tracker/animation mocap tool. Collected (6-degrees of freedom) device position and orientation data is transferred in realtime to a Mac/PC running GripTools.io and Cinema 4D.

Learn everything about iXplorer AR: https://www.griptools.io/ixplorer.php

Athlon Brandstofprijs

(2010) Development of the iOS version for Athlon Brandstofprijs: app for checking fuel prices in your region.

Check out this review on iCulture, a popular dutch Apple news website.

Bizztravel Sneeuwhoogte

(2010) Development of BizzTravel Sneeuwhoogte: an app for checking snow conditions in the most popular alpine ski destinations

Check out this review on iCulture, a popular dutch Apple news website.

DUO Student

• Development of iOS version of DUO Student | (Dienst Uitvoering Onderwijs) Checking student grant dates and information

Tijdschrijven

At a gliding club, every flight needs to be registered. I voluntary developed an iPad app to replace our aging MS-DOS application.

It's been used for many years and I've fully maintained it during this period. After gaining national interest from other gliding clubs, I considered 'opening' up the application and make it universal to be used by any club. To prevent re-inventing the wheel, we started national meetings with other IT professionals to brainstorm on good solutions. In the end, this resulted in a launch of a new administrative platform: https://www.zweef.app. Our club was eager to pioneer amongst the first Zweef.app users and given my background I adviced the Zweef.app developers in it's early days.

ESA App Camps

Winner of ESA App Camp 2013

For the 2nd edition of the European Space Agency’s App Camp, 20 developers were selected from 16 EU-countries. The goal was to find an innovative use of the new ESA Copernicus satellite data and to develop & present a prototype application within just one week. After being selected by ESA to join the App Camp, our group incidentally consisted of multiple aviation enthusiasts. During the App Camp week, we developed and presented “Thermal Guidance System”. Our project proposed the use of Copernicus satellite data to detect areas of high thermal updraft – rising air currents that are responsible to keep gliders aloft for long durations. The app provided maps of these areas and a 3D view, assisting pilots of gliders to find updrafts and assisting General Aviation pilots to avoid potential turbulence.

Learn more at: https://app-camp.eu/winner-frascati-2013/

2nd place in ESA App Camp 2014

For the 3rd edition of the European Space Agency’s App Camp, our team competed again this time with our “Safe.HUD” app. We developed our proof of concept application for the (back then innovative) Parrot ar.drone as dev/demo platform. It provided an augmented-reality HUD for unmanned aerial systems (UAS) pilots, to give them enhanced situational awareness.

Learn more at: https://app-camp.eu/winner-noordwijk-2014/

ESA Noordwijk

Details coming soon.

Freedom

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• Date: September 2014
• Client: Bhardwaja
• Category: Graphic Design

Freedom

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• Date: September 2014
• Client: Bhardwaja
• Category: Graphic Design

Freedom

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• Date: September 2014
• Client: Bhardwaja
• Category: Graphic Design

Freedom

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• Date: September 2014
• Client: Bhardwaja
• Category: Graphic Design

People

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• Date: September 2014
• Client: Bhardwaja
• Category: Graphic Design

Cupcakes

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Want these theme for your portfolio? Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

• Date: September 2014
• Client: Bhardwaja
• Category: Graphic Design