Contact

Contact me by email or give me a call

+31 6 31004646 or lennarddeurman@live.nl

LENNARD DEURMAN

Freelance mobile / web developer | focused on advertising scripting | Entrepreneur

Experience with over 300.000 app users, Javascript, iOS (swift + obj-c), Android (java), writing SDKs and libraries, api and backend knowledge

Projects & Services
About me

About me

My name is Lennard Deurman. Since 2015 I'm active in creating online IT solutions. This started with creating the Labda App at the begin of 2015. I started this application as a hobbyproject but due to the big interest in the application it soon became more serious.


As a result of the success of the Labda App I started my company Delta Apps at the end of 2015. Labda became even more succesful in the years that followed and has gotten over 300.000 users.


The great reach of the app has taught me a lot in a relatively short period. It motivated me to further dive into mobile / web development and advertising. This brought me the opportunity to come in contact with programmatic first sales house Massarius.


Massarius managed the programmatic advertising in the Labda App and I started working for Massarius as freelance developer.


At the moment I focus with Delta Apps on creating new IT solutions and solving technical problems related to advertising for multiple clients.

Massarius BV

2015 - now

Massarius facilitates programmatic trading of online advertisements for independent publishers. The Massarius network contains over 50 publishers and has over 450 million impressions per month. Their clients include publishers like AT5, Beslist.nl and Speld.

Massarius is responsible for correct ad serving and selling this the right way to advertisers. Furthermore Massarius is constantly looking for new (technical) solutions which can increase profits for their publishers.

As developer at Massarius I'm responsible for creating new technical products like SDKs or scripts. Other tasks at Massarius are mainly technical publisher support and researching technical errors.

Delta Apps

2015 - now


Labda

Labda provides Dutch scholars a way to view their schooldata in a mobile application. The app is connected to the system Magister from SchoolMaster BV and uses their api to show the data in the mobile app. Labda filled the gap that had been created due to the SchoolMasters lack of having an official app for Magister. This made it possible for Labda to grow in a short period of time to more than 300.000 monthly active users.

Zeta

After creating the Labda-app some user started asking to create a similar app for another schooldata system called Zermelo. This app works in the same way as Labda does except it’s connected to another datasource.

Didactigo

Didactigo is my most recent project. Didactigo provides students a way to digitally learn for their exams. The first version of this platform went live in February 2017. This platform contained a responsive web app and an iOS app. Based on the feedback I received after releasing that version, I started creating a more complete version this year. I’m planning to release this new version (containing both a native Android and iOS app) at the begin of fall 2018.

Impreszion BV

2017 - now

As a freelancer I help Impreszion solve technical problems related to scripting or inapp advertising.

Faktor.IO BV

2018

As a freelancer I advise Faktor for implementing their product towards different publishers.

Delta Apps

KvK 64555399