Andrej Adamcik, JavaScript Developer in Bratislava, Bratislava Region, Slovakia
Andrej Adamcik

JavaScript Developer in Bratislava, Bratislava Region, Slovakia

Member since January 27, 2015
Andrej is a software developer and architect. He has extensive experience with PHP, JavaScript, HTML, and CSS and enjoys working on both front-end and back-end. He likes creating modern websites and developing real-time scalable web applications with Node.js.
Andrej is now available for hire




Bratislava, Bratislava Region, Slovakia



Preferred Environment

CodeTasty, Visual Studio Code, MacOS, Git, Ubuntu

The most amazing...

...project I've coded is, an online IDE in the cloud.


  • Full-stack Developer for The Hub

    2019 - 2020
    Rainmaking Innovation ApS (via Toptal)
    • Developed The Hub portal for matching talent with startups.
    • Built +impact portal to match investors with impact startups.
    • Supported API and admin panel development.
    Technologies: Amazon Web Services (AWS), AWS, Heroku, MongoDB, Node.js, Vue
  • PHP Developer

    2019 - 2019
    NomadicTribe, LLC (via Toptal)
    • Developed an API using Laravel for a travel app.
    • Created the app's web admin console.
    Technologies: Vue, Laravel, PHP
  • Full-stack Developer

    2018 - 2019
    Officeguru A/S (via Toptal)
    • Supported the development of an API and a web app for an office services platform.
    • Created a presentation website for the platform.
    • Developed an iOS and Android app using React Native for the client's employees.
    Technologies: React Native, React, Vue, MySQL, Laravel, PHP
  • Full-stack Developer

    2018 - 2018
    SPARK! (via Toptal)
    • Developed an API for a print quote system using Node.js and MS SQL.
    • Created the UI for a print quote system using Vue.js, Nuxt, and Vuetify.
    Technologies: Microsoft SQL Server, Vuetify, Vue, Node.js, JavaScript
  • CTO

    2014 - 2018
    • Created web presentations.
    • Developed a system to generate proposals of web and mobile applications with an algorithm for cost calculation.
    • Developed a tracking and analytics application for employees.
    • Added back-end functionality for an interactive magazine.
    • Developed the website, admin, and APIs for airlines.
    • Created the Glue website for Spotify.
    • Designed an iOS application for Gartner to view and manage research articles.
    Technologies: Node.js, Swift, Objective-C, JavaScript, CSS, HTML, Microsoft SQL Server, MariaDB, MySQL, PHP
  • Full-stack Developer

    2015 - 2017
    Helix Sleep (via Toptal)
    • Created an eCommerce site for custom built mattresses.
    • Developed an admin UI for the eCommerce website.
    Technologies: Laravel, Bash, JavaScript, CSS, HTML, MySQL, PHP
  • PHP/MySQL Developer

    2015 - 2016
    RAD FitKey (via Toptal)
    • Developed an API for a body measurement app.
    Technologies: MySQL, PHP
  • Software Developer

    2012 - 2016
    Lime Inspirations, s.r.o.
    • Developed a real-time chat support application (
    • Implemented Jabber functionality for communication between the app and messengers.
    Technologies: Python, Bash, JavaScript, CSS, HTML, MySQL, PHP
  • PHP Developer for Back-end REST API

    2015 - 2015
    ZYX Integrated Technologies, LLC (via Toptal)
    • Developed an API for a social monetization platform.
    Technologies: MySQL, PHP
  • Software Developer

    2013 - 2014
    Omasta Consultancy, Ltd.
    • Developed an online CV generator with editable templates.
    • Created iOS games.
    Technologies: Objective-C, JavaScript, CSS, HTML, MySQL, PHP
  • Software Developer

    2006 - 2014
    • Developed an online IDE for developers supporting 40+ languages.
    • Created beautiful and modern web presentations.
    Technologies: Objective-C, C, Node.js, JavaScript, CSS, HTML, MariaDB, MySQL, PHP
  • Web Developer

    2012 - 2013
    • Designed web presentations.
    • Developed eShop solutions.
    Technologies: MySQL, PHP, JavaScript, CSS, HTML


  • Viion World Website

    Corporate website for Viion World, which designs and builds immersive learning environments, created using Vue.js, Three.js, and GSAP.

  • BookLocal Landing Page

    Landing page for a company that aims to connect hotels and travelers via blockchain smart contracts and get rid of all the middlemen.

  • CodeTasty

    A modern IDE in the cloud.

  • Lime Talk

    A real-time chat support application.

  • Comcast Media 360

    Responsive website for Comcast.

  • CapaCV

    An iOS app for companies to manage their open positions and find the best candidates. As a candidate, you can record video with real-time face shape detection and polygons generated from the background.

  • My Gartner Mobile

    Native iOS app in Swift for viewing Gartner articles and library management.

  • RCCL App

    An iOS app done in Swift for Royal Caribbean.

    A preview of the app is shown in this video:

  • Spotify Glue Website

    A website for Spotify's design guidelines.

  • Smart Node.js Form Validation (Publication)
    Bulletproof data validation is fundamental to implementing a back-end API. Find out how datalize, a Node.js library, makes this easy—and formats your data nicely, too.


  • Languages

    Swift 4, CSS, Swift 3, HTML5, Swift, JavaScript, CSS3, PHP, HTML, Less, Bash, Python, C, Objective-C
  • Frameworks

    Nette, Laravel, Koa,, Vue SSR, React Native, Ember.js, Vuetify, Zend Framework
  • Libraries/APIs

    React, Vue, Vuex, Node.js, jQuery UI, jQuery, Socket.IO, CocoaPods, Facebook API
  • Tools

    Xcode, Git, Sublime Text, AWS CLI, AWS SES, AWS EBS, Mercurial
  • Paradigms

    Object-oriented Programming (OOP), REST, Object-oriented Design (OOD), Agile Software Development
  • Platforms

    iOS, MacOS, Ubuntu, Linux, Debian Linux, CentOS, AWS Lambda, Visual Studio Code, Heroku, Amazon EC2, Amazon Web Services (AWS)
  • Storage

    MongoDB, MySQL, MariaDB, Redis, AWS S3, PostgreSQL, Microsoft SQL Server
  • Other

    Vue-router, CodeTasty, AWS

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