Denis Bilash

Experience

• 

  GeeksForLess Inc.

  Jan 2008 - Jan 2024

  • Developed and implemented a next gen version of a Webmail client using React.js / Typescript / MobX, resulting in approximately 20% increase in page load speed and significant increase in user engagement.• Collaborated with the team of 3 front-end developers, 2 qa, 1 PM and 3 back-end developers that contributed to in-time delivery of new features and 25% reduction in server-response time.• Contributed to implementation of CI process (GitLab CI) and a full set of tests via Jest that streamlined the development process and greatly reduced the occasions of delivering the code containing imperfections to the verification environment. Показати менше • Developed and maintained user interfaces using Javascript, React library and JS frameworks (Backbone.js, Angular, Vue.JS, Marionette.js) alongside custom JS modules for such products and services as graph tool, scheduling service, social network user portal (to name a few) that met positive user feedback and rating.• Designed and implemented reusable component libraries, resulting in oftentimes up to 30-40% decrease in time required to develop new features.• Mentored junior / middle front-end developers in a team of 15+ people and shared knowledge on the optimal application of front-end technologies in day-to-day work.• Participated in side projects on the server side (PHP, Laravel) that expedited gap free implementation of integrating front-end and back-end logic on projects where I played the primary role of a front-end developer. Показати менше

  • React Developer

    Jan 2021 - Jan 2024

  • Frontend Developer

    Jan 2013 - Jan 2023

  • PHP Developer

    Jan 2012 - Jan 2013

  • HTML Coder

    Jan 2008 - Jan 2012