Client projects
Having worked for startups as well as big enterprises I can help you implement your software project, setup a cloud infrastructure, form a team and define a software development process.
poesi Ionic 3 App
Lukas Hermann, Essen/Germany
Development and enhancements for the existing app:
Poesi is a digital collection of poems.
Scope of work:
Software development
Technologies used:
Ionic 3.9, Typescript, Node 10, AngularJS Admin, REST, JSON, iOS, Android
Mobile API & Backend Project
DOMENICEAU, Aachen/Germany
Participation in the software development of an app project in the fashion industry.
Development of a mobile API & a backend admin webinterface.
Scope of work:
Software development
Technologies used:
Angular 7, Typescript, Javascript, Serverless (AWS Lambda / Node 8), AWS S3, AWS DynamoDB, REST, JSON
myBusiness.AI
Mobile2b GmbH, Cologne/Germany
Participation in the software development of the Angular web frontend.
Scope of work:
Software development
Technologies used:
Angular 5, Typescript, Javascript, Node 8, REST, JSON

RadioMonster.FM
Streampanel, Hannover/Germany
Internetradio app with background audio streaming.
Scope of work:
Software development
Technologies used:
React Native, Javascript, iOS, Android

EnigmaX
Netempire Software GmbH, Cologne/Germany
Web- and desktop app for company wide password management (using hybrid encryption).
Scope of work:
Consulting, Software development
Technologies used:
Angular 5.2, Typescript, PGP, Electron (MacOS, Windows, Linux), REST, JSON, Ruby 2.5, Ruby on Rails 5.2, MongoDB 3.6

Studitemps Mobile App
Studitemps GmbH, Cologne/Germany
Consulting and participation in the development of a hybrid mobile app (until 2018).
Scope of work:
Consulting, Software development
Technologies used:
Ionic 3.9, Typescript, Jasmine, Karma, REST, JSON, Node 6, iOS, Android
Secure Mobile Payment Platform
rheinlandmobil GmbH, ein Unternehmen der Sparkassen-Finanzgruppe, Cologne/Germany
Fintech platform for secure payment transactions and processes.
Development of native apps (iOS/Android), mobile SDK's and an API Backend (Ruby).
Scope of work:
Consulting, Software development
Technologies used:
iOS 10 (Swift 3), Android 7 (Java), Strong encryption, Ruby 2.2 / JRuby, Ruby on Rails 4.2, MySQL 5.7

SKOPOS CONNECT Backends
SKOPOS CONNECT GmbH, Hürth & Aachen/Germany
www.skopos-connect.de
SKOPOS CONNECT connects companies directly with their customers by utilizing insight communities.
Participation in the development of a backend API for community participant management and a data hub, both with an Angular based HTML5 frontend.
Scope of work:
Consulting, Software development, Cloud/DevOps
Technologies used:
NodeJS 4, ExpressJS, mySQL 5.5, Sequelize, Javascript, HTML5, AngularJS 1.4, Grunt, Mocha/Karma, PhantomJS
NodeJS 6, ExpressJS, MongoDB 3.4, Mongoose, Babel/ES6, AngularJS 1.6, Gulp, Docker

I love MyMedia iOS/Android App (Relaunch)
IP Deutschland GmbH / GapFish GmbH / Smartclick Solutions, Cologne/Germany
www.ilovemymedia.de
iOS App Store
Android Google Play Store
Scope of work:
Consulting, Software development
Technologies used:
iOS Universal App: iOS 8, Swift 1.2, XCode 6.3, CocoaPods, JSON API, OAuth 2, CircleCI
Android: Android 5.0, Java 7, Android Studio, JSON API, OAuth 2, CircleCI
SayWay App & Online Reporting
SayWay GmbH, Cologne/Germany
www.sayway.de
SayWay delivers customer feedback systems for everyone: Tablet PC's with the SayWay survey app are used in a mobile or stationary setting. The survey data is being sent back to the server in order to be used in an online-reporting analysis tool for the customer (benchmark and branch comparison included).
Scope of work:
Consulting, Software development (Backend & App), Cloud/DevOps
Technologies used:
Android 2.3, 3.2 & 4.2, Java, Javascript, jQuery, Ajax, REST Webservices (JSON), Ruby 1.9.3, Ruby on Rails 3.2, MongoDB 2.4, Amazon EC2 & S3