Ronald van der Lingen

Jan Campertlaan 125
2624PB Delft
The Netherlands +31 (0)6 2424 8737

Experienced professional with more than 15 years of experience in Software development. Since 2009 the primary focus has been on development for the Android platform. Has kept up with the evolution of Android over the years and is a strong advocate for modern Android best practices. This ranges from technical implementation to user experience design.

Interested in new technology and likes to work on the bleeding edge. Lots of experience with Augmented Reality and Virtual Reality. First Google Glass Explorer in the Benelux. Loves 3D printing.


Programming Languages Java, Kotlin, C, C++, Python, Perl, Swift, Objective C
Platforms Android, Linux, iOS
IDEs Android Studio, IntelliJ, CLion, Eclipse
APIs OpenGL ES (3.1, 2.0, 1.1)
Web HTML, CSS, JavaScript
Version control Git, Mercurial, Subversion, CVS, SourceSafe
3D design Blender, OpenSCAD
Languages Dutch (native), English (full professional proficiency)

Work Experience
Independent Android Developer September 2008 - present

Worked on several apps both for customers as well as self published apps in Google Play with millions of downloads. Available for freelance development work and technology consultancy. Experience with giving presentations and workshops.

Worked for several clients, including:
Ultimaker, R2Pro,, Blippar, Lectric, ING, Rabobank, Layar, SPRXMobile, The IP Company, KNMI

Freelance Android Developer Januari 2018 - June 2018

Responsible for the development of the new Ultimaker android app that was launch together with the new Ultimaker S5 3D printer. The main purpose of the app was to expose the web interface for managing the printer queue on mobile devices, and to allow subscribing to print job notifications.

Technology used: Android, Kotlin, Room, Firebase, Koin, jmDNS, Gradle, Git

Freelance Developer Juli 2016 - June 2018

Worked with Floorplanner to create a new 3D rendering engine and to help explore the possibilities of new technologies, including Augmented Reality and Virtual Reality.

Technology used: Android, iOS, OpenGL ES 3.0, Google Tango, ARKit, ARCore, C++, NDK, Emscripten

Senior Android Developer and Head of R&D June 2014 - June 2016

After Blippar’s aqcuisition of Layar got involved with the Blippar app and technology. Among other things, worked on the following:

Technology used: Android, Java, Kotlin, Gradle, JNI, NDK, C++, OpenGL ES, Git, Mercurial

Research & Development Lead June 2009 - June 2016

Joined Layar in the early days as their Android developer. Experienced the full startup lifecycle with it’s ups and downs and learned a lot in the process. Took on many different roles and responsibilities with primary focus on Research & Development, Core technology and the Android app. Among other things, worked on the following:

Technology used: Android, Java, Kotlin, Gradle, JNI, NDK, C++, OpenGL ES, Computer Vision, Python, Blender, Git, Mercurial Jenkins, JIRA

Senior System Engineer May 2004 - July 2008

Contractor working for different customers, ranging from financial to defence industry. Main focus was Java software development, but also worked on small projects in different languages. Perfomed the role of Project Manager for several fixed price projects.

Worked for several clients, including:

University of California, Irvine
Research Student October 2002 - September 2003

Research in Software Engineering / Configuration Management. Developed MCCM (Modularly Configurable Configuration Management) which focused on reusability of CM models and CM policies in constructing CM systems. Publications in SCM 2003 and ICSE 2004.


Cources & Certificates
Certified ScrumMaster 2011
Prince 2 Practitioner 2007
Prince 2 Foundation (Score: 87%) 2006
Sun Certified Business Component Developer for the Java 2 Platform (Score: 90%) 2006
Project Management for Project- and Team Leaders, ISES 2005
Sun Certified Web Component Developer for the Java 2 Platform (Score: 93%) 2004
Sun Certified Programmer for the Java 2 Platform (Score: 91%) 2004

Erasmus University Rotterdam
M.Sc. Business Oriented Computer Science (Bestuurlijke Informatica) 1997 - 2004