Oleksandr Mieliekh, Full-stack Developer in Singapore, Singapore
Oleksandr Mieliekh

Full-stack Developer in Singapore, Singapore

Member since July 21, 2017
Oleksandr has more than ten years of experience in web development. He has expertise in the latest JavaScript frameworks: React, Angular, Vue.js, Express, and KoaJS. He also has a strong knowledge of SQL-based databases and shell-scripting. As a professional, he enjoys collaborating with a team and focuses on achieving the end result with the highest quality.
Oleksandr is now available for hire




Singapore, Singapore



Preferred Environment

OS X, WebStorm, Atom, GitKraken, Slack

The most amazing...

...project I've created was a web interface for WiMAX routers network that was able to configure devices separately and devices network as a whole.


  • Senior Angular Engineer

    2020 - PRESENT
    Parodify LLC dba Write Label (via Toptal)
    • Developed features for multiple Angular apps on the project.
    • Wrote unit and end-to-end tests on Karma, Jasmine and Cypress.
    • Participated in refactoring of existing multi-app Angular architecture.
    Technologies: Angular, Angular Material, TypeScript, Cypress
  • Principal Full-stack Engineer and Technical Lead

    2018 - PRESENT
    NTUC Enterprise
    • Created, full-stack web-applications for FairPrice Online on React and Node.js/GoLang.
    • Interviewed developers for front-end and back-end positions.
    • Involved in the development of an order management system.
    • Wrote alerts for platform events (request errors, panic errors, endpoints health checks).
    Technologies: React, Express, Node.js, GoLang, PostgreSQL, AWS, Kubernetes, Goggle Cloud
  • React Front-end Developer

    2019 - 2020
    Seagull Maritime Security, Ltd. - GoReala (via Toptal)
    • Developed features for an eCommerce website.
    • Created integrations with Auth0 and Google Maps APIs.
    • Used React with features, Context API, and hooks.
    Technologies: React, Google Maps API, Auth0
  • Lead Full-stack Developer

    2019 - 2019
    Toptal Project
    • Built features for a multi-component front end using Angular.
    • Wrote services and endpoints for the back end on Ruby on Rails.
    • Participated in overall architecture discussions.
    Technologies: Angular, Ruby on Rails, Vagrant, Docker, JSONAPI
  • Front-end Developer

    2018 - 2018
    Toptal Project
    • Developed multiple Angular-based microservices.
    • Covered each app with automated tests resulting in 90% coverage.
    • Wrote scripts for Jenkins CI.
    Technologies: Angular, Angular Material, Sass, WebPack, Git, CSS3, JavaScript
  • Front-end Developer

    2017 - 2018
    • Developed features for web-platform using AngularJS, Lodash, and Sass.
    • Maintained music event websites.
    • Built a desktop app based on Angular2 and Electron.
    • Built internal app with React, Apollo, and GraphGL.
    Technologies: React, AngularJS, GraphGL, Electron, Lodash, AWS, CSS3, Sass, Node.js, WebPack, Gulp, Browserify, Git, OS X, HTML5, JavaScript
  • Front-end Developer

    2017 - 2017
    • Developed micro-apps using Angular2.
    • Migrated old apps from AngularJS on Angular2.
    • Built UI-kitchen for the design team.
    • Created seed projects to easily start new apps from.
    • Wrote unit and functional tests.
    Technologies: Angular2, AngularJS, Ruby on Rails, JQuery, Express, AWS, Ruby, CSS3, Less, Sass, Node.js, WebPack, Git, OS X, HTML5, JavaScript
  • Front-end Developer

    2016 - 2017
    Saltside Technologies
    • Developed features and fixes for project using Docker services with Backbone, Jade (Pug), jQuery, and Ruby on Rails.
    • Wrote unit and functional tests.
    • Contributed to features' product design.
    Technologies: Backbone, jQuery, Underscore, Express, WebPack, Jade, Handlebars, AWS, Docker, Ruby, Ruby on Rails, CSS3, Less, Node.js, Grunt, Git, Ubuntu, OS X, HTML5, JavaScript
  • Web Developer

    2015 - 2016
    Sharewire B.V
    • Developed new features for an existing web-app on AngularJS.
    • Wrote unit and end-to-end tests using Protractor.
    • Created wireframes with Balsamiq.
    • Contributed to the feature designs.
    Technologies: AngularJS, JQuery, Bootstrap, Google Maps, Google Chaasmine, Node.js, Grunt, Bower, Git, HTML5, JavaScriprt, OpenStreetMap, CSS3, Less, Karma, Jupiter Tessellation (Jt)
  • Senior Web-Developer / Team lead

    2014 - 2015
    • Developed new features for web-app using jQuery, Handlebars, Bootstrap, and Sass.
    • Migrated the web-app to AngularJS.
    • Mentored co-workers in AngularJS and JavaScript technologies.
    • Created automated unit tests.
    Technologies: AngularJS, HTML5, JavaScript, JQuery, CSS3, Sass, Twitter Bootstrap, RequireJS, Handlebars, CrossroadsJS, SlickGrid, Karma, Jasmine, Node.js, Grunt, Bower, Git, Windows
  • Senior Web Developer

    2012 - 2014
    • Created custom web-framework “from zero” for purpose of writing web-app for brand 802.11n router.
    • Developed widgets for framework.
    • Designed public presentations that were aimed to explain principles of embedded web-app work.
    • Mentored co-workers in JavaScript and Bootstrap technologies.
    Technologies: JQuery, D3.js, Bootstrap, HTML5, JavaScript, CSS3, Less, Lua, uHTTPd, Lighthttpd, Adobe Photoshop, Jasmine, Jenkins, Mercurial, Meld, RhodeCode, Icon Design, Font Creator, SNMP, TCP/IP, Ubuntu
  • Web Developer

    2010 - 2012
    GeeksForLess, Inc.
    • Developed features for different projects with jQuery, JQuery Mobile, PHP, MySQL, and MooTools.
    • Maintained existing websites.
    • Created app prototypes on jQuery.
    Technologies: JavaScript, JQuery, JQuery Mobile, HTML5, PHP4/5, MySql, Google Maps API, MySql, MooTools
  • Computer Class Administrator

    2008 - 2009
    Petro Mohyla Black Sea State University
    • Maintained laboratory computers.
    • Created simple Bash scripts.
    Technologies: TCP/IP, WiFi, LAN, Bash



  • Languages

    HTML5, JavaScript, Sass, Less, Pug, TypeScript, GraphQL, Golang, Go, Lua, PHP, Ruby
  • Frameworks

    Angular, AngularJS, Express.js, Koa, Bootstrap 3, Bootstrap 4, Protractor, Jasmine, Ruby on Rails (RoR)
  • Libraries/APIs

    React, Node.js, Moment.js, Lodash, jQuery, Google Maps, Vue.js, Mustache, Handlebars, SlickGrid, Underscore.js, RequireJS, Google Charts API, Nightwatch.js, REST APIs, HTML5 Canvas, Backbone.js, jQuery Mobile, D3.js, Sugar.js, Chai
  • Tools

    NPM, Webpack 2, Open Street Maps, Grunt, Karma, Webpack 4, Travis CI, Browserify, Subversion (SVN), Bitbucket, Bower, AWS SDK, Vagrant, Jenkins, Mercurial, Gulp.js, CircleCI, Mocha
  • Paradigms

    Test-driven Development (TDD), Behavior-driven Development (BDD)
  • Platforms

    Docker, Kubernetes, Google Cloud Platform (GCP)
  • Storage

    SQLite, MySQL, Google Cloud, PostgreSQL
  • Other

    Icon Fonts, Vue-router, Semantic UI, Full-stack, Google Material Design


  • Master's degree in Intelligent Decision-making Systems
    2005 - 2011
    Black Sea State University of P. Mohyla - Mykolaiv, Ukraine

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