Kevin Kickstein

Senior Android Developer

Application Developer

Education

BSc in Computer Science

University of Siegen
2010 - 2014

iOS Developer Nanodegree

Udacity
2017

Node with React: Fullstack Web Development

Udemy
2018

Languages

  • German (Native)
  • English (Professional)

Interests

  • Climbing
  • Bouldering
  • Volleyball
  • Running
  • Programming
  • TV-Shows

Profile

I am mainly a mobile and backend developer, an experienced programmer with good knowledge of the iOS and Android platform, as well as the Spring Boot Framework. In addition to that I have a sure stand in the land of web-development with AngularJS, Angular and React. I love structure and order and I also stand for quality. Learning new things and techniques are my greatest passions. I enjoy spending time on fixing little details and optimizing. Working in and as a team is of high importance to me. Learning and improving is a constant goal of mine, which is best achieved in collabortation with others.

Experiences

Senior Android Developer

2023 - Present
appDev GmbH & Co. KG, Germany

Working as a consultant Application Developer, for a variety of projects. Most of the Code is written in Kotlin and using an up-to-date Architecture, as well as up-to-date Patterns and Frameworks like Jetpack Compose and Coroutines. Understanding, maintaining, refactoring and working with "Legacy Code" is a common in most of my projects.

Application Developer (iOS, Android, Web, Backend)

2018 - 2023
paydirekt GmbH, Germany

Working as an Application Developer in the FinTech Sector, with close connection to german banks. Developing and maintaining Android & iOS Apps, as well as the paydirekt/giropay payment system itself. Projects are mainly written in Kotlin, Swift, Java, JavaScript & TypeScript.

Senior Android, iOS & Web Developer

2017 - 2018
Buhl Data Service GmbH, Germany

Working as a Senior Mobile Devloper at a large german Software Company. Developing multiple Android & iOS Apps in the FinTech Sector. Also taking part in a huge relaunch of the companies webbased finance plattform. Projects are mainly written in Kotlin, Swift & TypeScript, using frameworks like Angular, Android and Cocoa-Touch.

Android & iOS Developer

2014 - 2017
Buhl Data Service GmbH, Germany

Employed as fulltime Mobile Devloper. I have been working on multiple Android and iOS Apps, mostly Java and Objective C based.

Android Developer

2013 - 2016
wirSiegen.de, Germany

As a student I started writting my first 'big' Android Apps in cooperation with the wirSiegen.de-Team. From the first mockups up to the final release of the App, everything was done by me as a one man team.

Trainee

2013 - 2014
Buhl Data Service GmbH, Germany

While studying at the University of Siegen, I collected my first real-world experiences here. I was mainly working an writing JUnit and Robotium test and maintaining the companys Jenkins CI Server.

Bachelor Thesis

2013
Invers GmbH, Germany

My bachelor thesis was written in cooperation with Invers GmbH. It consisted in writing an Android Kiosk App that could remotely manage and control devices.

Projects

paydirekt/Giropay payment service - Payment service provider that operated the online payment procedure "paydirekt" of German banks and savings banks from 2015. Since May 2021, the payment procedure has been offered under the name "Giropay".
paydirekt Android App - Android Application accompanying the paydirekt/Giropay payment system, offering payment and accout overviews, as well as P2P functionalities.
paydirekt iOS App - iOS Application accompanying the paydirekt/Giropay payment system, offering payment and account overviews, as well as P2P functionalities.
finanzblick X - Rewrite of the finanzblick web-application using Angular. Fresh from the ground up with scalability and robustness in mind.
steuer:iOS - An iOS Application that brings the functionality of the famous WISO:Sparbuch to iOS. With this app, virtually any kind of tax declaration can be made.
steuer:Android - Android Version of the steuer:iOS App. Containing the same functionality with additional Android specific behaviours and features.
finanzblick Android - A mobile Banking App for Android. Supports more than 4.000 banks and offers syncing over multiple devices and operating systems.
finanzblick überweisung - Contains reduced functionality of the finanzblick App. Focuses on automatically creating bank transfers from photos of invoices.
WISO Gehalt 2017 - reliably calculates the deduction of taxes and social security contributions for the years 2010 to 2017, taking into account not only the current tax tables but also many special features so that your net salary is always correctly calculated.
wirSiegen - News App for Siegen - Wittgenstein. News, daily news, reports, photo and film.
Points Calculator - Calculates Points based on the nutrients of your food.
Mobile Device Manager - Android Kiosk App that could allows remote management and control of devices.
Emaily - Web-App using NodeJS, ExpressJS and ReactJS. Allows to send out surveys via email. Tracks the given answers and presents them in a list to the user. Has Stripe and Goolge-Auth integration.