Front End Lead / Senior Full Stack Developer - React Native, React, JS, PHP, MySQL, HTML5, CSS3
Aktualisiert am 02.03.2026
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 16.03.2026
Verfügbar zu: 100%
davon vor Ort: 0%
TypeScript/JS
React
PHP
HTML5
CSS3 +
AWS
Azure
Git
Next.js
GatsbyJS
Python
React Native
Docker
MySQL
PostgreSQL
Drupal
Agile Softwareentwicklung
Testautomatisierungstools
Webapplication
Webentwicklung
Rust
Google Analytics
English
Verhandlungssicher
German
Muttersprache
Spanish
Fortgeschritten

Einsatzorte

Einsatzorte

Deutschland, Österreich, Schweiz

Right now I'm only looking for Remote Projects!

-

Akut suche ich reine Remote Projekte!

möglich

Projekte

Projekte

1 Jahr 10 Monate
2024-03 - 2025-12

Bayer AG Pharma - Front End Lead / Senior Full Stack Developer

Front End Lead / Senior Full Stack Developer Next.js Drupal TypeScript ...
Front End Lead / Senior Full Stack Developer
Freelance Senior Full-Stack Developer & later Front End Lead. 

Enhancing the Pharmacological Platforms for various markets (around 50 in the end).
(Contract through other recruitment companies)

Next.js Drupal TypeScript JavaScript GitHub Continuous Integration Testing Testautomatisierung GitHub Copilot Vercel
Bayer AG
Remote
7 Jahre 1 Monat
2018-02 - 2025-02

D.A.T.A. GmbH - Web-Development Project Manager & Maintainer

Development Project Manager PHP Drupal JavaScript (vanilla / jQuery) ...
Development Project Manager
Rescuing Project after server loss, rebuilding missing elements in Backup, moving Server to HTTPS, enhancements and maintenance, redesign / soft relaunch in '24 & constant upkeep till the company was sold off to Paratus in '25.
PHP Drupal JavaScript (vanilla / jQuery) HTTPS/SSL
D.A.T.A.
5 Jahre
2018-12 - 2023-11

gatsby-background-image

Project Owner / Main Collaborator ReactJS Gatsby Vanilla JS
Project Owner / Main Collaborator

  • Component for GatsbyJS for displaying containers with background images with gatsby-image?s ?sugar?

ReactJS Gatsby Vanilla JS
2 Jahre 9 Monate
2020-12 - 2023-08

Solana Labs - Senior Web Development Consultant

Freelance Senior Web Developer React Gatsby Next.js ...
Freelance Senior Web Developer
Further development of the existing solana.com website in Gatsby, porting it to Next.js & from Heroku to Vercel, as well as a lot of other projects including Bootstrapping of Metaplex, Nation & many others
React Gatsby Next.js ThreeJS Python and many more
Solana Labs
Remote
1 Jahr 2 Monate
2019-09 - 2020-10

ÖBB ? Rail Cargo Austria - Mike Mobile

Lead Developer React Native React Native Java Objective-C (+ tooling around RN
Lead Developer React Native
  • Writing an App to digitally aid with logistic Services
React Native Java Objective-C (+ tooling around RN
ÖBB ? Rail Cargo Austria (Austria)
9 Monate
2018-12 - 2019-08

wientv.org ? (re)building and administration

Development Project Manager & Administrator PHP Drupal ReactJS / Gatsby (with styled-components) ...
Development Project Manager & Administrator

  • Creating Stand By Page
  • (Re)building Project after ?DrupalGate? from MySQL DB
  • move Server-Hosting (and advance to HTTPS)
  • enhancements and maintenance

PHP Drupal ReactJS / Gatsby (with styled-components) JavaScript
WienTV.org
Vienna / remote
5 Monate
2017-11 - 2018-03

Dialogschmiede GmbH - Developing Drupal 7 Projects

Developer Drupal / JS PHP Drupal JS/jQuery
Developer Drupal / JS
  • Cleaning up some Projects and developing new ones for various Clients

PHP Drupal JS/jQuery
Dialogschmiede GmbH
Austria
3 Monate
2017-08 - 2017-10

Telekurier - Port of a Symfony Import to Drupal 8 Module

Telekurier Online Medien GmbH & Co KG- Developer Drupal PHP Symfony Drupal ...
Telekurier Online Medien GmbH & Co KG- Developer Drupal

Development of Drupal Module based on old Symfony Weather Import, writing Tests for Continuous Integration

PHP Symfony Drupal PHPUnit Code Coverage
Austria
1 Monat
2017-05 - 2017-05

YagerApp

Developer React Native for Zlosch React Native PHP Symfony ...
Developer React Native for Zlosch
  • Development of an App for Hunters, Android and iOS.
  • Scripting with React (JS) Native, creating own simple store system
  • Result [on request]
React Native PHP Symfony Drupal
1 Jahr 3 Monate
2016-03 - 2017-05

Relaunch of Publisher Websites

Developer Drupal, JS, React for Zlosch PHP Symfony Drupal ...
Developer Drupal, JS, React for Zlosch
  • Development of Drupal Modules
  • JS Scripts and React Widgets
PHP Symfony Drupal JS React (some Components)
Helbling GmbH ? International educational Publisher
Austria
1 Monat
2016-06 - 2016-06

LittleBigHeart App

Project Manager, Code analysis, JS Developer DrupalGap Drupal / DrupalGap
Project Manager, Code analysis, JS Developer DrupalGap
  • “emergency aid“ - completion of an DrupalGap App
  • Result [on request]
Drupal / DrupalGap
agency4e7
4 Monate
2015-11 - 2016-02

YagerApp

Developer React Native for Zlosch React Native PHP Symfony ...
Developer React Native for Zlosch
  • Development of an App for Hunters, Android and iOS.
  • Scripting with React (JS) Native, creating own simple store system
  • Result [on request]
React Native PHP Symfony Drupal
1 Monat
2016-01 - 2016-01

D.A.T.A. - Menu restructuring

Frontend Developer for Zlosch PHP Drupal JavaScript (jQuery)
Frontend Developer for Zlosch
  • Restructuring existing Menu,
  • Developing new “Slide-In“ responsive Menu.
  • Result [on request]
PHP Drupal JavaScript (jQuery)
D.A.T.A.
2 Monate
2015-12 - 2016-01

react-native-google-locations

Developer, Package Manager Java React Native
Developer, Package Manager
  • React Native Module – Integration of Goggle Play Location Services with React Native
  • Result [on request]
Java React Native
self / community
2 Monate
2015-12 - 2016-01

react-native-gmaps

Forked. Contributer Java React Native
Forked. Contributer
  • React Native Module – Extending and enhancing.
  • Result [on request]
Java React Native
self / community
3 Monate
2015-09 - 2015-11

ÖBV

Developer Drupal PHP Drupal XML
Developer Drupal
  • Import of existing Events and Data in new Drupal Site
  • Result [on request]
PHP Drupal XML
3 Monate
2015-07 - 2015-09

Site Relaunch

Developer React / jQuery / Drupal 8 React PHP Symfony ...
Developer React / jQuery / Drupal 8
  • Relaunch of Zensations’ Website
  • Result [on request]
React PHP Symfony Drupal 8
2 Monate
2015-05 - 2015-06

Take On The Night (Gauloises)

Developer React / Drupal React (with Flummox) PHP Symfony ...
Developer React / Drupal
  • Development of a React Widget for Photo upload and manipulation, Integration into Drupal.
  • Result [on request]
React (with Flummox) PHP Symfony Drupal
5 Monate
2014-11 - 2015-03

fst-mc(.at) ? Fahrsicherheitstrainings Miodrag Cvetanovic

Solo project PHP/MySQL (PDO Binding) JavaScript (AJAX jQuery ...
Solo project

Development of a restricted Webapp for administration and
accounting of drivers' orientation and safety trainings.

PHP/MySQL (PDO Binding) JavaScript (AJAX jQuery jQueryUI) HTML5/CSS3
Miodrag Cvetanovic

Kompetenzen

Kompetenzen

Top-Skills

TypeScript/JS React PHP HTML5 CSS3 + AWS Azure Git Next.js GatsbyJS Python React Native Docker MySQL PostgreSQL Drupal Agile Softwareentwicklung Testautomatisierungstools Webapplication Webentwicklung Rust Google Analytics

Produkte / Standards / Erfahrungen / Methoden

Drupal
Gatsby

Qualifications

  • Media technician ? Media design (with Honors)
  • Media technician ? Media technology (with Honors)
  • Freelance IT specialist (since 2016)
  • (as well as a few online or smaller Certificates)


Specialization

  • App & Webdevelopment/-design (Back-/Frontend)


Focus areas

  • TypeScript/JS
  • React
  • React Native
  • HTML5
  • CSS3+


Other areas

  • Cloud & DevOps
  • Python
  • PHP
  • MySQL


Experience & Skills

  • Team-management
  • psychological knowledge
  • educational knowledge
  • Writing
  • Playing various Instruments / Audio tool realization


Java

Experienced in Android, rusty with Java desktop programming

Mobile Platforms

  • React Native
  • PhoneGap (+ DrupalGap)


Web standards

  • HTML (incl. 5)
  • XHTML
  • CSS (incl. 3+)
  • JavaScript / ECMAScript
  • SASS / LESS (SCSS)
  • CSS-in-JS (e.g. styled-components)

Mobile Platforms

  • React Native (Android & iOS)
  • PhoneGap (+ DrupalGap)


Cloud Platforms

  • Vercel
  • AWS
  • Platform.sh
  • Supabase
  • Azure


Web frameworks / CMS Platforms

  • Tailwind CSS, Bootstrap, Radix, Chakra UI
  • Drupal (7-10) & Symfony
  • Wordpress
  • Laravel


JavaScript Frameworks / Libraries

  • React (including State Libraries like XState or Zustand & Flux Architectures like Flummox or Redux)
  • Next.js
  • Gatsby (+jQuery, jQueryUI)


XML standards

  • Base XML


Documentation

  • Markdown
  • Storybook
  • JSDoc compliant
  • PHPDoc compliant / doxygen compliant


Modeling

  • XState Modeling with stately.ai
  • Database Modeling with MySQL Workbench / MSSQL Management Console


Server-Software

  • Apache ? Installation and Administration Windows / Linux
  • Nginx ? Installation and Administration Linux
  • Experience with Win Server-Tools (incl. IIS)
  • Experience with Novell Netware (rusty, 1999-2001)


Development Environments

  • IntelliJ Idea (+Android Studio), PyCharm, CLion, PHPStorm
  • Visual Studio Code, Sublime Text
  • Xcode
  • Delphi, Lazarus (once Turbo Pascal)
  • Visual Studio (C++ / Visual Basic)


Versioning

  • GIT
  • CVS


Build- & Integrationtools

  • npm
  • yarn
  • pnpm
  • TurboRepo
  • lerna
  • Vercel
  • GitHub Actions
  • CircleCI
  • Travis CI
  • Composer
  • Grunt
  • Gulp
  • make
  • Docker
  • Vagrant


Virtual Machines

  • VirtualBox
  • VMWare
  • QEMU


Database tools

  • GraphiQL
  • GraphQL Playground
  • MySQL Workbench
  • DBeaver
  • phpMyAdmin
  • Adminer
  • MSSQL Management Console


Network tools

  • CISCO Packet Tracer
  • Standard tools (ping, traceroute, etc.)
  • SSH / SCP


Networking

  • Installation and management of smaller environments LAN/WLAN
  • Dedicated Server management including Site Security HTTPS (trying to gain SSLLabs Levels A to A+) and upgrading to HTTP/2


Server Platforms

  • LAMP/WAMP/MAMP
  • LEMP
  • MERN


Testing

  • Jest (+testing-library/react)
  • Cypress, Mocha / Chai
  • PHPUnit


Learning

  • Rust

Betriebssysteme

Android, iOS
Mac OS X
(up to 10.)
Unix/Linux
(several Distributions)
Windows
(Desktop 3.1 to 8.1 + 10, Server NT4.0, 2000 to 2008/2012)

Programmiersprachen

C/C++
Delphi/Lazarus (FreePascal)
Java
JavaScript
PHP
Python
ReactJS
ReactJS / Gatsby (with styled-components)
Vanilla JS
Visual Basic/VBA
Rust

Datenbanken

IndexedDB
MongoDB (+ mongoose)
MSSQL
MySQL
Oracle
SQLite

Einsatzorte

Einsatzorte

Deutschland, Österreich, Schweiz

Right now I'm only looking for Remote Projects!

-

Akut suche ich reine Remote Projekte!

möglich

Projekte

Projekte

1 Jahr 10 Monate
2024-03 - 2025-12

Bayer AG Pharma - Front End Lead / Senior Full Stack Developer

Front End Lead / Senior Full Stack Developer Next.js Drupal TypeScript ...
Front End Lead / Senior Full Stack Developer
Freelance Senior Full-Stack Developer & later Front End Lead. 

Enhancing the Pharmacological Platforms for various markets (around 50 in the end).
(Contract through other recruitment companies)

Next.js Drupal TypeScript JavaScript GitHub Continuous Integration Testing Testautomatisierung GitHub Copilot Vercel
Bayer AG
Remote
7 Jahre 1 Monat
2018-02 - 2025-02

D.A.T.A. GmbH - Web-Development Project Manager & Maintainer

Development Project Manager PHP Drupal JavaScript (vanilla / jQuery) ...
Development Project Manager
Rescuing Project after server loss, rebuilding missing elements in Backup, moving Server to HTTPS, enhancements and maintenance, redesign / soft relaunch in '24 & constant upkeep till the company was sold off to Paratus in '25.
PHP Drupal JavaScript (vanilla / jQuery) HTTPS/SSL
D.A.T.A.
5 Jahre
2018-12 - 2023-11

gatsby-background-image

Project Owner / Main Collaborator ReactJS Gatsby Vanilla JS
Project Owner / Main Collaborator

  • Component for GatsbyJS for displaying containers with background images with gatsby-image?s ?sugar?

ReactJS Gatsby Vanilla JS
2 Jahre 9 Monate
2020-12 - 2023-08

Solana Labs - Senior Web Development Consultant

Freelance Senior Web Developer React Gatsby Next.js ...
Freelance Senior Web Developer
Further development of the existing solana.com website in Gatsby, porting it to Next.js & from Heroku to Vercel, as well as a lot of other projects including Bootstrapping of Metaplex, Nation & many others
React Gatsby Next.js ThreeJS Python and many more
Solana Labs
Remote
1 Jahr 2 Monate
2019-09 - 2020-10

ÖBB ? Rail Cargo Austria - Mike Mobile

Lead Developer React Native React Native Java Objective-C (+ tooling around RN
Lead Developer React Native
  • Writing an App to digitally aid with logistic Services
React Native Java Objective-C (+ tooling around RN
ÖBB ? Rail Cargo Austria (Austria)
9 Monate
2018-12 - 2019-08

wientv.org ? (re)building and administration

Development Project Manager & Administrator PHP Drupal ReactJS / Gatsby (with styled-components) ...
Development Project Manager & Administrator

  • Creating Stand By Page
  • (Re)building Project after ?DrupalGate? from MySQL DB
  • move Server-Hosting (and advance to HTTPS)
  • enhancements and maintenance

PHP Drupal ReactJS / Gatsby (with styled-components) JavaScript
WienTV.org
Vienna / remote
5 Monate
2017-11 - 2018-03

Dialogschmiede GmbH - Developing Drupal 7 Projects

Developer Drupal / JS PHP Drupal JS/jQuery
Developer Drupal / JS
  • Cleaning up some Projects and developing new ones for various Clients

PHP Drupal JS/jQuery
Dialogschmiede GmbH
Austria
3 Monate
2017-08 - 2017-10

Telekurier - Port of a Symfony Import to Drupal 8 Module

Telekurier Online Medien GmbH & Co KG- Developer Drupal PHP Symfony Drupal ...
Telekurier Online Medien GmbH & Co KG- Developer Drupal

Development of Drupal Module based on old Symfony Weather Import, writing Tests for Continuous Integration

PHP Symfony Drupal PHPUnit Code Coverage
Austria
1 Monat
2017-05 - 2017-05

YagerApp

Developer React Native for Zlosch React Native PHP Symfony ...
Developer React Native for Zlosch
  • Development of an App for Hunters, Android and iOS.
  • Scripting with React (JS) Native, creating own simple store system
  • Result [on request]
React Native PHP Symfony Drupal
1 Jahr 3 Monate
2016-03 - 2017-05

Relaunch of Publisher Websites

Developer Drupal, JS, React for Zlosch PHP Symfony Drupal ...
Developer Drupal, JS, React for Zlosch
  • Development of Drupal Modules
  • JS Scripts and React Widgets
PHP Symfony Drupal JS React (some Components)
Helbling GmbH ? International educational Publisher
Austria
1 Monat
2016-06 - 2016-06

LittleBigHeart App

Project Manager, Code analysis, JS Developer DrupalGap Drupal / DrupalGap
Project Manager, Code analysis, JS Developer DrupalGap
  • “emergency aid“ - completion of an DrupalGap App
  • Result [on request]
Drupal / DrupalGap
agency4e7
4 Monate
2015-11 - 2016-02

YagerApp

Developer React Native for Zlosch React Native PHP Symfony ...
Developer React Native for Zlosch
  • Development of an App for Hunters, Android and iOS.
  • Scripting with React (JS) Native, creating own simple store system
  • Result [on request]
React Native PHP Symfony Drupal
1 Monat
2016-01 - 2016-01

D.A.T.A. - Menu restructuring

Frontend Developer for Zlosch PHP Drupal JavaScript (jQuery)
Frontend Developer for Zlosch
  • Restructuring existing Menu,
  • Developing new “Slide-In“ responsive Menu.
  • Result [on request]
PHP Drupal JavaScript (jQuery)
D.A.T.A.
2 Monate
2015-12 - 2016-01

react-native-google-locations

Developer, Package Manager Java React Native
Developer, Package Manager
  • React Native Module – Integration of Goggle Play Location Services with React Native
  • Result [on request]
Java React Native
self / community
2 Monate
2015-12 - 2016-01

react-native-gmaps

Forked. Contributer Java React Native
Forked. Contributer
  • React Native Module – Extending and enhancing.
  • Result [on request]
Java React Native
self / community
3 Monate
2015-09 - 2015-11

ÖBV

Developer Drupal PHP Drupal XML
Developer Drupal
  • Import of existing Events and Data in new Drupal Site
  • Result [on request]
PHP Drupal XML
3 Monate
2015-07 - 2015-09

Site Relaunch

Developer React / jQuery / Drupal 8 React PHP Symfony ...
Developer React / jQuery / Drupal 8
  • Relaunch of Zensations’ Website
  • Result [on request]
React PHP Symfony Drupal 8
2 Monate
2015-05 - 2015-06

Take On The Night (Gauloises)

Developer React / Drupal React (with Flummox) PHP Symfony ...
Developer React / Drupal
  • Development of a React Widget for Photo upload and manipulation, Integration into Drupal.
  • Result [on request]
React (with Flummox) PHP Symfony Drupal
5 Monate
2014-11 - 2015-03

fst-mc(.at) ? Fahrsicherheitstrainings Miodrag Cvetanovic

Solo project PHP/MySQL (PDO Binding) JavaScript (AJAX jQuery ...
Solo project

Development of a restricted Webapp for administration and
accounting of drivers' orientation and safety trainings.

PHP/MySQL (PDO Binding) JavaScript (AJAX jQuery jQueryUI) HTML5/CSS3
Miodrag Cvetanovic

Kompetenzen

Kompetenzen

Top-Skills

TypeScript/JS React PHP HTML5 CSS3 + AWS Azure Git Next.js GatsbyJS Python React Native Docker MySQL PostgreSQL Drupal Agile Softwareentwicklung Testautomatisierungstools Webapplication Webentwicklung Rust Google Analytics

Produkte / Standards / Erfahrungen / Methoden

Drupal
Gatsby

Qualifications

  • Media technician ? Media design (with Honors)
  • Media technician ? Media technology (with Honors)
  • Freelance IT specialist (since 2016)
  • (as well as a few online or smaller Certificates)


Specialization

  • App & Webdevelopment/-design (Back-/Frontend)


Focus areas

  • TypeScript/JS
  • React
  • React Native
  • HTML5
  • CSS3+


Other areas

  • Cloud & DevOps
  • Python
  • PHP
  • MySQL


Experience & Skills

  • Team-management
  • psychological knowledge
  • educational knowledge
  • Writing
  • Playing various Instruments / Audio tool realization


Java

Experienced in Android, rusty with Java desktop programming

Mobile Platforms

  • React Native
  • PhoneGap (+ DrupalGap)


Web standards

  • HTML (incl. 5)
  • XHTML
  • CSS (incl. 3+)
  • JavaScript / ECMAScript
  • SASS / LESS (SCSS)
  • CSS-in-JS (e.g. styled-components)

Mobile Platforms

  • React Native (Android & iOS)
  • PhoneGap (+ DrupalGap)


Cloud Platforms

  • Vercel
  • AWS
  • Platform.sh
  • Supabase
  • Azure


Web frameworks / CMS Platforms

  • Tailwind CSS, Bootstrap, Radix, Chakra UI
  • Drupal (7-10) & Symfony
  • Wordpress
  • Laravel


JavaScript Frameworks / Libraries

  • React (including State Libraries like XState or Zustand & Flux Architectures like Flummox or Redux)
  • Next.js
  • Gatsby (+jQuery, jQueryUI)


XML standards

  • Base XML


Documentation

  • Markdown
  • Storybook
  • JSDoc compliant
  • PHPDoc compliant / doxygen compliant


Modeling

  • XState Modeling with stately.ai
  • Database Modeling with MySQL Workbench / MSSQL Management Console


Server-Software

  • Apache ? Installation and Administration Windows / Linux
  • Nginx ? Installation and Administration Linux
  • Experience with Win Server-Tools (incl. IIS)
  • Experience with Novell Netware (rusty, 1999-2001)


Development Environments

  • IntelliJ Idea (+Android Studio), PyCharm, CLion, PHPStorm
  • Visual Studio Code, Sublime Text
  • Xcode
  • Delphi, Lazarus (once Turbo Pascal)
  • Visual Studio (C++ / Visual Basic)


Versioning

  • GIT
  • CVS


Build- & Integrationtools

  • npm
  • yarn
  • pnpm
  • TurboRepo
  • lerna
  • Vercel
  • GitHub Actions
  • CircleCI
  • Travis CI
  • Composer
  • Grunt
  • Gulp
  • make
  • Docker
  • Vagrant


Virtual Machines

  • VirtualBox
  • VMWare
  • QEMU


Database tools

  • GraphiQL
  • GraphQL Playground
  • MySQL Workbench
  • DBeaver
  • phpMyAdmin
  • Adminer
  • MSSQL Management Console


Network tools

  • CISCO Packet Tracer
  • Standard tools (ping, traceroute, etc.)
  • SSH / SCP


Networking

  • Installation and management of smaller environments LAN/WLAN
  • Dedicated Server management including Site Security HTTPS (trying to gain SSLLabs Levels A to A+) and upgrading to HTTP/2


Server Platforms

  • LAMP/WAMP/MAMP
  • LEMP
  • MERN


Testing

  • Jest (+testing-library/react)
  • Cypress, Mocha / Chai
  • PHPUnit


Learning

  • Rust

Betriebssysteme

Android, iOS
Mac OS X
(up to 10.)
Unix/Linux
(several Distributions)
Windows
(Desktop 3.1 to 8.1 + 10, Server NT4.0, 2000 to 2008/2012)

Programmiersprachen

C/C++
Delphi/Lazarus (FreePascal)
Java
JavaScript
PHP
Python
ReactJS
ReactJS / Gatsby (with styled-components)
Vanilla JS
Visual Basic/VBA
Rust

Datenbanken

IndexedDB
MongoDB (+ mongoose)
MSSQL
MySQL
Oracle
SQLite

Vertrauen Sie auf Randstad

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Im Bereich Arbeitnehmerüberlassung / Personalvermittlung

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Rufen Sie uns an +49 89 500316-300 oder schreiben Sie uns:

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