React Native
App Development
React Native Developer (Freelancer)

React Native Developer (Freelancer)

SAP SE

2023-2024

Germany (remote)

React Native Developer and consulting for the KulturPass App.

Project of the Federal Government SAP to promote culture to the youth.

  • React Native
  • TypeScript
  • RTK Query
  • Open Source
React Native Developer (Freelancer)

React Native Developer (Freelancer)

Tonies GmbH / Frozen Donkey GmbH

2021-2023

Düsseldorf, Germany (remote)

Leading developer for the React Native application.

Enabling customers to experience tonies® from their phone.

  • React Native with Custom Native Modules
  • TypeScript, Java, ObjectiveC
  • GraphQL, REST, Jest, Detox E2E
  • Sentry, Firebase, Zendesk, Zeplin
  • Bitrise, Fastlane
  • Scrum, Kanban
React Native Developer (Freelancer)

React Native Developer (Freelancer)

EWE AG

2021-2022

Oldenburg, Germany (remote)

Responsible for the React Native application in its full lifecycle.

Climate change and CO2 awareness are the challenges, that were solved by an intelligent tracking and social system.

  • React Native
  • JavaScript
  • AWS
  • Bitrise, Fastlane
  • Scrum
Frontend/Mobile Engineer

Frontend/Mobile Engineer

Nect GmbH

2018-2020

Hamburg, Germany

Responsible for the React Native and React applications in a 5 to 60 people startup.

Apps had a rating of ~4.7 and more than 300k downloads.

Germany's first fully-automated biometric self-identification app.

  • React, React Native and many Custom Native Modules
  • Strong focus on camera use cases (OpenCV and Tesseract OCR)
  • TypeScript, JavaScript
  • Objective C, Swift
  • Kotlin, Java
  • Docker, CI/CD, E2E Tests
Internship

Internship

Siemens Corporate Technology

2017

Princeton, NJ, US

Worked at Siemens Corporate Technology in a team on a robotics project.

  • C#
  • Angular 2
Research Member

Research Member

Ostfalia University (Faculty Software Engineering)

2016-2017

Wolfenbuettel, Germany

Supporting my professor`s work. Worked on my master theses on 'controlling a cyber physical system with Virtual Reality'.

  • Java, Java EE
  • C#, Unity, Virtual Reality
  • Software Defined Networking
Study Abroad

Study Abroad

University of Wisconsin-Parkside

2015

Kenosha, WI, US

Semester abroad as a computer science masters student.

Student Employee

Student Employee

Bertrandt

2014-2015

Wolfsburg, Germany

Worked as an engineer on automotive projects.

  • C/C++
  • Python, MySQL
  • JavaScript, D3.js
Computer Science Student (Master)

Computer Science Student (Master)

Ostfalia University

2014-2017

Wolfenbuettel, Germany

Studies focused on Mobile and Systems Engineering (in-depth theory, complexity and algorithms).

Bachelor Thesis

Bachelor Thesis

Bertrandt

2014

Wolfsburg, Germany

Developed an embedded system that detects different car infotainment system.

  • C/C++
  • Linux Shell Script
Computer Science Student (Bachelor)

Computer Science Student (Bachelor)

Ostfalia University

2011-2014

Wolfenbuettel, Germany

Studies focused on Systems Engineering.