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Daniyil Vasylenko

Updated: AUG 01 2020

Curious and creative. I always try to come up with something special and original.

Primarily I focus on Node.js, React, GraphQL and modern JavaScript ecosystem.

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Full Stack Software Engineer

Company: Contentful

Duration: Dec 2019 - now

Full stack development and support of the Headless CMS by Contentful


  • Maintenance and improvements of the UI kit
  • Full stack contribution to the web app and related services
  • Support for the public APIs for CMS content management
  • Part of the customer tech support
  • Full Stack Developer

    Company: Dial-Once

    Duration: Dec 2016 - Dec 2019

    Full stack development and support of the omnichannel communication platform, consisting of multiple front-end products with a micro-service architecture behind it.


  • Designing and developing the company's most on-demand product
  • Implemented the tools, that allowed designers concentrate on styling without interacting with the code base.
  • Reduced code base complexity by creating simple abstractions and inroducing new standards and best practices into the workflow.
  • Mentored company's interns
  • Held workshops and pair programming sessions to ease integration in cross-functional projects
  • Node.js Developer

    Company: FASTEE Technologies

    Duration: Aug - Dec 2016

    Implemented bots for the generic chat bot platform.


  • Created chat bots on multiple chat bot APIs - Slack, Asana, Skype, Messenger
  • Created a routing system of message exchange between different communication platforms
  • Skills

    Back-end: Node.js, Express, RabbitMQ

    Front-end: Javascript, HTML, CSS, React, Redux, Overmind

    Databases: Mongodb, Redis, MySQL

    Build tools: Webpack

    Testing: testing-library, Jest, Chai, Sinon, Nyc, Karma, Enzyme

    Devops: Docker

    CI/CD: CircleCI, Travis, SonarQube, Netlify, Heroku

    VCS: Git

    Misc: Electron, Lerna, Gatsby, Basics of Elm, Basics of UX Design


    Specialist Degree

    Duration: 2016 - 2018

    Faculty: Informatics and Computer Systems

    The National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute" (NTUU "KPI")

  • Theory of Automation and Control of Computer Systems
  • Bachelor Degree

    Duration: 2012 - 2016

    Faculty: Informatics and Computer Systems

    The National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute" (NTUU "KPI")

  • Principles of Information Technology
  • Principles of Computer Graphics
  • Object Oriented Programming in C# language and Patterns of Design
  • Principles of Communication and Data Transfer and Persistence
  • Courses

    Java Enterprise Edition

    Provider: Bionic University

    Duration: August - November 2014

  • EJB - Stateful, Stateless beans
  • Introduction to Spring Framework
  • Jersey, Jackson
  • JPA
  • Language Skills

  • English - C1 (7.5 - IELTS, Aug 2019)
  • German - B1