Java Developer

Experienced freelance web application programmer specializing in PHP, JavaScript, and React. Skilled in developing websites, web applications, and native applications for various clients. Proficient in technologies such as Redux, Node.js, and Express. Strong background in frontend development and leadership roles. Master's degree in Information Systems with a focus on web technologies.

AI Developer expert (08/2025 - 12/2025)

• Developed a chat bot for voice and text bot use cases.
• Worked with React, Azure AI, Typescript and Git.

FE Developer (07/2023 - 07/2025)

• Developed applications for a Norwegian Forest Maintenance and Management Company.
• Worked with React, ArcGIS, Jest, Typescript, Git, Azure and Gitpod.

FE Team Leader (05/2022 - 08/2023)

• Led frontend development for an internal timesheet project in React.
• Worked with React, Redux, Redux-saga, Reselect, Jest, Typescript, Git, Jenkins, Azure, Jira and Veracode.

STL (Senior Technical Leader) (08/2019 - 04/2022)

• Developed a car configurator for a retail automotive group.
• Worked with React, Redux, Redux-saga, Reselect, Jest, Typescript, Git, Jenkins, Azure and Jira.

Developer (02/2019 - 07/2019)

• Developed internet banking for foreign clients at a banking software company.
• Worked with React, Redux, Redux-saga, Jest, Typescript, Git and Jenkins.

Web and Intranet Developer (04/2018 - 02/2019)

• Worked on web and intranet development.
• Worked with React, Redux, Redux-thunk, ES8, Jest, Webpack, Typescript, Formik, Eslint and Git.

SPA Developer (12/2017 - 03/2018)

• Developed a frontend SPA application in Javascript.
• Worked with React, Redux, ES6, Mocha, Chai, Webpack and Flow Type.

Consultant (08/2017 - 11/2017)

• Consulted on web services development in Javascript.
• Worked with Node JS, React, Redux, ES6, Mocha, Babel and Webpack.

Node JS REST API Developer (06/2017 - 10/2017)

• Developed a JSON REST API.
• Worked with Node JS, Express, Babel, ES6, Git and Mocha.

SPA React Developer (06/2016 - 08/2016)

• Developed an application for virtual machine configuration as a single page application communicating with a server by JSON REST API.
• Worked with React, Redux, Webpack, Babel, ES6, Less, Git, Mocha, React-router and Immutable.

Senior Programmer (03/2011 - 02/2019)

• Responsible for running an intranet for Eastern Europe, covering Czech Republic, Slovakia, Hungary and Poland.
• Managed 17 applications + 2 online applications.
• Worked with PHP, JavaScript, React, Redux, ES6, Webpack, MSSQL and MySQL.

PHP Migration Developer (09/2015 - 11/2015)

• Migrated an existing PHP application from PHP 4.2 to PHP 5.5.
• Rewrote non-supported structures, libraries and functions.
• Worked with PHP.

Wiki mentation Developer (02/2015 - 09/2015)

• Created multilingual pages based on Confluence technology.
• Worked with JavaScript, React, Redux, ES6, Webpack, Mocha and Babel.

Content Management System Developer (02/2013 - 11/2018)

• Created a redaction system allowing configuration of mobile application appearance and content management via JSON API.
• Worked with PHP, Nette Framework and jQuery.

PHP Programmer (02/2012 - 12/2012)

• Performed PHP programming for a retail deals project.
• Worked with PHP and Codeigniter.

JavaScript Programmer (02/2011 - 09/2011)

• Worked as a JavaScript framework programmer for an internal application at a retail bank.
• Worked with JavaScript and Ext JS.

Web Application Developer (02/2011 - 02/2014)

• Created numerous custom-made websites.
• Worked with Nette, jQuery, Node.js and React.

Trainer (02/2011 - present)

• Organised JavaScript and PHP trainings.
• Delivered trainings covering JavaScript, PHP, React, Redux and Node.js.