Upcoming and past speaking engagements of @twannl including video recordings and references to any online slides.


Personal interview with Paul Hudson
Hacking with Swift on my Job Interviews

Upcoming conferences

Swift Island
Texel, Netherlands – July 3 & 4

Video recordings

Speeding up as an iOS Developer
2019 CocoaHeadsNL, Amsterdam

How to create a sustainable codebase
2018 AppDevCon, 2018

Building the new WeTransfer mobile app
2017 CocoaHeads, 2017

Using Functional Reactive Programming
2016 DOiOS, 2016


Speeding up as an iOS Developer

Using Functional Reactive Programming

Upcoming and passed conferences


24 NovSpeeding up as an iOS developerCoimbra, PortugalGDG Coimbra
09 NovSpeeding up as an iOS developerTurin, ItalySwiftHeroes
16 MarHow to create a sustainable codebase?Amsterdam, NetherlandsAppDevCon
16 FebHow to create a sustainable codebase?Cluj-Napoca, RomaniaMobOS


19 JulBuilding the new WeTransfer mobile appAmsterdam, NetherlandsCocoaHeads
16 FebUsing Functional Reactive ProgrammingUtrecht, NetherlandsTweakers Dev Summit


15 NovUsing Functional Reactive ProgrammingAlkmaar, NetherlandsCocoaHeads
9 NovUsing Functional Reactive ProgrammingAmsterdam, NetherlandsDO iOS

General information

Antoine van der Lee
iOS Engineer @WeTransfer, Amsterdam


As an iOS engineer at WeTransfer, Antoine’s work is focused on code architecture. Both on the job and in local development circles, he is best known as not only the guy who gets excited about finding new ways to structure processes and poise development teams for timely delivery, but also as an engineer who likes to have fun while working. Antoine is passionate about contributing to the iOS community and particularly enjoys speaking on best practices for structuring code architecture in a way that creates sustainability, as well as open sourcing frameworks and how iOS developers can be more successful in their work. Among other things, his 8 years of experience includes work on development across multiple platforms for large global companies such as WeTransfer and RTL, as well as apps for various entertainment brands and startups.