Fullstack-Entwickler in weitreichenden Anwendungsgebieten, v.a. Spezialisierung im Frontend (TypeScript, React und React-Native)
Aktualisiert am 19.01.2024
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 19.01.2024
Verfügbar zu: 100%
davon vor Ort: 100%
ReactJS
TypeScript
Front-End
REST
Continuous Integration
Back-End
Node.js
JavaScript
German
Native
English
Fluent
Turkish
Native

Einsatzorte

Einsatzorte

Deutschland
möglich

Projekte

Projekte

2022 ? today: designed and implemented a side-project

Role: Universal Clipboard Manager
Customer: Pano

Tasks:
Single-handedly conceptualized, designed and implemented a side-project (currently in closed beta): A multi-platform clipboard manager application using Electron, Node.js, TypeScript and React offering an extended featureset for power users dealing heavily with text-based work in their day-to-day (recruiters, programmers, office workers, etc.).


2015 ? Today: Full-stack, Web-, React-Native- & Android Development

Role: Freelancer

Tasks:
I worked on key projects for globally renowned companies in a wide range of industries like Finance, Automotive, Sports, Fashion and Apparel and Telecommunication. A non-exhaustive list of these customers includes household names like Klarna, adidas, Vodafone, Leica Camera, Deutsche Telekom, trivago or Postbank Germany.


2021 ? 2022: Klarna Chrome Extension

Customer: Klarna Bank AB

Tasks:
Joined a newly formed group (migrating from a company which was bought by Klarna) and helped port allfunctionality to a brand-new version of Klarna?s Chrome Extension (using TypeScript, React and other modern frameworks). Also helped refactor major pain points regarding Developer Experience, which affected most of the ~6.000 developers at the company.


2019 ? 2020: Urban Sports Club App

Customer: Urban Sports GmbH

Tasks:
Joined a newly formed team in one of Berlin?s most prolific startups with the purpose of building a React-Native app from the ground up, which allowed users to manage their membership while also simplifying and modernizing the discovery of and check-in process at participating sports venues.


2018 ? 2018: YOUNG MONEY

Customer: Postbank AG

Tasks:
Worked on a team which built a completely new React[1]Native banking app specifically targeted at young customers at Postbank (one of Germany?s top banks in the private sector). My responsibilities included implementing a pixel-perfect UI with a lot of fluid animations and working on the business logic of the app. The app has since been discontinued


2018 - 2018: fitogram

Customer: fitogram GmbH (2018)

Tasks:
Single-handedly built the iOS and Android app in ReactNative for fitogram, a search engine and booking platform for fitness and sports studios.


2018 ? 2018: Terrapin X

Customer: Safran Vectronix AG (2018)

Tasks:
Based on the work done for the Leica Hunting App. Both apps use the same BLE device communication layer but differ slightly in app functionality and consumer-faced features of the devices


2017 ? 2018: Leica Hunting

Customer: Leica Camera AG, Sportsoptics division

Tasks:
Single-handedly built iOS and Android apps in React-Native which let users configure and update all aspects of their Laser-Rangefinder device remotely by using Bluetooth-LowEnergy (BLE) technology. Firmware for devices where actively developed with my help and input, which required creating a low-level communication library in JavaScript.


2017 ? 2017: Telekom ?Urlaubsmodus? Smart-Home App

Customer: Telekom AG (2017)

Tasks:
Worked on a team which built a smart-home interlinking app in React-Native, which allowed users to prepare smart-home devices for the user?s absence (e.g. before holidays). My responsibilities included implementing a conversational UI (AI powered) with a pixel-perfect design and elaborate animations.


2017 ? 2017: adidas CLICK

Customer: adidas AG

Tasks:
Worked on a team which built a new B2B-ordering platform from the ground-up, which now handles all B2B-sales for the company. My responsibilities included working on the business logic layer (retrieving data from the Salesforce backend) and advising/helping the team working on the UI layer in HTML5 technologies (JS, HTML, CSS).


2017 ? 2017: mouzCMS

Customer: mousesports Ltd

Tasks:
Single-handedly built a custom CMS in Laravel/PHP (on top of an open-source CMS called PageKit) for one of the most popular e-Sports teams in the world, featuring custom backand frontend-solutions for managing team rosters, adding social media posts,


2016 ? 2017: PayWithCapture

Customer: Access Bank Africa

Tasks:
Single-handedly built a banking app (in React Native, so iOS and Android versions) for Access Bank, Africa?s third largest banking conglomerate. This included top-tier security mechanisms, a fluid UI/UX and a whole lot of performance optimizations. More info available on request.


2015 ? 2015: trivago

Customer: trivago AG

Tasks:
Worked on a team that built the trivago Android app (hotel price searching/booking platform), with all features (and some additional ones) that were available on the web app, including detailed search parameters, result filtering, displaying results on map, etc.


2014 ? 2014: BVB 09 App

Customer: Borussia Dortmund

Tasks:
Worked on a team that built the then-new Borussia Dortmund Android app, which featured nifty animations, an elaborate news section, match-day information and even a live radio stream. The app has since been renewed, but some core elements seem to be still in-tact (matchday page


2014 ? 2014: Vodafone Promotional App

Customer: Vodafone

Tasks:
Single-handedly built a small game (natively in Android/Java) to be used in Vodafone stores in a one-off, nation-wide promotional campaign.

Aus- und Weiterbildung

Aus- und Weiterbildung

University of Bonn

Bachelor of Science, GPA: 2.3, Bachelor Thesis on Request

Kompetenzen

Kompetenzen

Top-Skills

ReactJS TypeScript Front-End REST Continuous Integration Back-End Node.js JavaScript

Produkte / Standards / Erfahrungen / Methoden

Profile
I?m a highly experienced and technically adept Full-stack Developer (albeit more specialized in Frontend frameworks like React and React-Native), who can writeclean, maintainable, and optimized code in multiple programming languages like TypeScript, Java, C#, Ruby, PHP and HTML5. By virtue of an excellent understanding of complex data models and algorithms and the ability to get acquainted with and make use of cutting-edge developments and frameworks, I can be a very productive and helpful addition to any development team. I?m also able to manage and guide groups of fellow colleagues, as proven at several client projects where I have overseen small development teams or at my employment at the University of Bonn as a tutor / mentor in courses like Software Technology and Object-Oriented-Programming.

TECHNOLOGY SKILLS 

  • Javascript/TypeScript (including state-of-the-art frameworks based on JS like Node.js, React, React-Native, Angular, Vue etc.).
  • Java, Android, C#, C++, PHP, Ruby (and Ruby-on-Rails), HTML5)

Work Experience
2015 ? 2016
Role: Lead-Android Developer, Designer and Product Manager 
Customer: ChatGrape

Tasks:
Worked as Lead-Android Developer, Product Manager and Designer at a new and upcoming European startup called ChatGrape (now Grape). I established and led the Android team while also bringing fresh ideas to the table as a Designer and Product Manager, helping to shape and advance the product.

2014
Role: Freelancer Web & Android Development

Tasks:
Worked on projects for high-profile companies like trivago, Vodafone, etc. as an Android developer for Rheinfabrik GmbH (contractor company), where I helped creating and/or improving existing Android apps with millions of users using the latest technologies.

2012 ? 2014
Role: lecturer assistan
Customer: University of Bonn

Tasks:
Worked as a lecturer assistant and tutor / mentor for fellow students.

2011 ? 2012
Role: traffic data analyst for Europe and Middle East
Customer: Navteq GmbH

2008 ? 2011
Role: Freelancer Web Development

Tasks:
Designed, implemented, and maintained web applications on a freelance basis.

Einsatzorte

Einsatzorte

Deutschland
möglich

Projekte

Projekte

2022 ? today: designed and implemented a side-project

Role: Universal Clipboard Manager
Customer: Pano

Tasks:
Single-handedly conceptualized, designed and implemented a side-project (currently in closed beta): A multi-platform clipboard manager application using Electron, Node.js, TypeScript and React offering an extended featureset for power users dealing heavily with text-based work in their day-to-day (recruiters, programmers, office workers, etc.).


2015 ? Today: Full-stack, Web-, React-Native- & Android Development

Role: Freelancer

Tasks:
I worked on key projects for globally renowned companies in a wide range of industries like Finance, Automotive, Sports, Fashion and Apparel and Telecommunication. A non-exhaustive list of these customers includes household names like Klarna, adidas, Vodafone, Leica Camera, Deutsche Telekom, trivago or Postbank Germany.


2021 ? 2022: Klarna Chrome Extension

Customer: Klarna Bank AB

Tasks:
Joined a newly formed group (migrating from a company which was bought by Klarna) and helped port allfunctionality to a brand-new version of Klarna?s Chrome Extension (using TypeScript, React and other modern frameworks). Also helped refactor major pain points regarding Developer Experience, which affected most of the ~6.000 developers at the company.


2019 ? 2020: Urban Sports Club App

Customer: Urban Sports GmbH

Tasks:
Joined a newly formed team in one of Berlin?s most prolific startups with the purpose of building a React-Native app from the ground up, which allowed users to manage their membership while also simplifying and modernizing the discovery of and check-in process at participating sports venues.


2018 ? 2018: YOUNG MONEY

Customer: Postbank AG

Tasks:
Worked on a team which built a completely new React[1]Native banking app specifically targeted at young customers at Postbank (one of Germany?s top banks in the private sector). My responsibilities included implementing a pixel-perfect UI with a lot of fluid animations and working on the business logic of the app. The app has since been discontinued


2018 - 2018: fitogram

Customer: fitogram GmbH (2018)

Tasks:
Single-handedly built the iOS and Android app in ReactNative for fitogram, a search engine and booking platform for fitness and sports studios.


2018 ? 2018: Terrapin X

Customer: Safran Vectronix AG (2018)

Tasks:
Based on the work done for the Leica Hunting App. Both apps use the same BLE device communication layer but differ slightly in app functionality and consumer-faced features of the devices


2017 ? 2018: Leica Hunting

Customer: Leica Camera AG, Sportsoptics division

Tasks:
Single-handedly built iOS and Android apps in React-Native which let users configure and update all aspects of their Laser-Rangefinder device remotely by using Bluetooth-LowEnergy (BLE) technology. Firmware for devices where actively developed with my help and input, which required creating a low-level communication library in JavaScript.


2017 ? 2017: Telekom ?Urlaubsmodus? Smart-Home App

Customer: Telekom AG (2017)

Tasks:
Worked on a team which built a smart-home interlinking app in React-Native, which allowed users to prepare smart-home devices for the user?s absence (e.g. before holidays). My responsibilities included implementing a conversational UI (AI powered) with a pixel-perfect design and elaborate animations.


2017 ? 2017: adidas CLICK

Customer: adidas AG

Tasks:
Worked on a team which built a new B2B-ordering platform from the ground-up, which now handles all B2B-sales for the company. My responsibilities included working on the business logic layer (retrieving data from the Salesforce backend) and advising/helping the team working on the UI layer in HTML5 technologies (JS, HTML, CSS).


2017 ? 2017: mouzCMS

Customer: mousesports Ltd

Tasks:
Single-handedly built a custom CMS in Laravel/PHP (on top of an open-source CMS called PageKit) for one of the most popular e-Sports teams in the world, featuring custom backand frontend-solutions for managing team rosters, adding social media posts,


2016 ? 2017: PayWithCapture

Customer: Access Bank Africa

Tasks:
Single-handedly built a banking app (in React Native, so iOS and Android versions) for Access Bank, Africa?s third largest banking conglomerate. This included top-tier security mechanisms, a fluid UI/UX and a whole lot of performance optimizations. More info available on request.


2015 ? 2015: trivago

Customer: trivago AG

Tasks:
Worked on a team that built the trivago Android app (hotel price searching/booking platform), with all features (and some additional ones) that were available on the web app, including detailed search parameters, result filtering, displaying results on map, etc.


2014 ? 2014: BVB 09 App

Customer: Borussia Dortmund

Tasks:
Worked on a team that built the then-new Borussia Dortmund Android app, which featured nifty animations, an elaborate news section, match-day information and even a live radio stream. The app has since been renewed, but some core elements seem to be still in-tact (matchday page


2014 ? 2014: Vodafone Promotional App

Customer: Vodafone

Tasks:
Single-handedly built a small game (natively in Android/Java) to be used in Vodafone stores in a one-off, nation-wide promotional campaign.

Aus- und Weiterbildung

Aus- und Weiterbildung

University of Bonn

Bachelor of Science, GPA: 2.3, Bachelor Thesis on Request

Kompetenzen

Kompetenzen

Top-Skills

ReactJS TypeScript Front-End REST Continuous Integration Back-End Node.js JavaScript

Produkte / Standards / Erfahrungen / Methoden

Profile
I?m a highly experienced and technically adept Full-stack Developer (albeit more specialized in Frontend frameworks like React and React-Native), who can writeclean, maintainable, and optimized code in multiple programming languages like TypeScript, Java, C#, Ruby, PHP and HTML5. By virtue of an excellent understanding of complex data models and algorithms and the ability to get acquainted with and make use of cutting-edge developments and frameworks, I can be a very productive and helpful addition to any development team. I?m also able to manage and guide groups of fellow colleagues, as proven at several client projects where I have overseen small development teams or at my employment at the University of Bonn as a tutor / mentor in courses like Software Technology and Object-Oriented-Programming.

TECHNOLOGY SKILLS 

  • Javascript/TypeScript (including state-of-the-art frameworks based on JS like Node.js, React, React-Native, Angular, Vue etc.).
  • Java, Android, C#, C++, PHP, Ruby (and Ruby-on-Rails), HTML5)

Work Experience
2015 ? 2016
Role: Lead-Android Developer, Designer and Product Manager 
Customer: ChatGrape

Tasks:
Worked as Lead-Android Developer, Product Manager and Designer at a new and upcoming European startup called ChatGrape (now Grape). I established and led the Android team while also bringing fresh ideas to the table as a Designer and Product Manager, helping to shape and advance the product.

2014
Role: Freelancer Web & Android Development

Tasks:
Worked on projects for high-profile companies like trivago, Vodafone, etc. as an Android developer for Rheinfabrik GmbH (contractor company), where I helped creating and/or improving existing Android apps with millions of users using the latest technologies.

2012 ? 2014
Role: lecturer assistan
Customer: University of Bonn

Tasks:
Worked as a lecturer assistant and tutor / mentor for fellow students.

2011 ? 2012
Role: traffic data analyst for Europe and Middle East
Customer: Navteq GmbH

2008 ? 2011
Role: Freelancer Web Development

Tasks:
Designed, implemented, and maintained web applications on a freelance basis.

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