my name is Yarik Kalytiuk and I am a professional Web Developer (last time updated: 2018)

Team project: Scrum methodology

Technologies: NodeJS, ReactJS, Express, WebSocket

• Refactored data-base for better performance and incorporated bids. Created bidding Back-End and Front-End logic: creating, updating and displaying bids in real time.
• Optimized server-request, fixed server and front-end bugs. Refactored Front-end/ UI.
• Redeployed multiple times the app on Linux server (AWS analogy), performance tests, expenses estimation.

Solo project

Technologies: NodeJS, Express, Sockets, MongoDB

What was done:

• Back-End/Front-End Login-Registration logic, using Back-End and Front-End field validation, bcrypt password hashing.
• Dashboard real-time online users information update. Real time invite for challange. Back-End and Front-End logic.
• challange level using:
  - smartphone g-sensor data listening with JavaScript
  - User interface for challange level
  - Real time translation of opponent position, and refresh in the browser using Sockets
  - Using coefficient for different screen sizes for proportional bullet speed and spaceship movement.
• Optimized and tested app on different browsers and devices
• Deployed on Ubuntu Linux
• Github link

Designed UI, drew the spaceship:

Solo project

Technologies: Google OAuth 2.0 API Library, NodeJS, Express

What was done:

• Back-End logic for Sign-In with installed Node.js "Google Auth Library".
• Front-End: user interface and pages on .ejs.

Solo project

Technologies: Java Spring Boot, MySQL, Linux, nginx

Description: Exam project for Java Stack (Java Spring Boot MVC) at Coding Dojo (was achieved highest score "Black belt").

What was done:

• Back-End/Front-End Login-Registration logic.
• Admin and simle user access rules.
• Multiple tables database structure.
• Admin can create package and activate/deactivate it after and delete as well.
• User can chose package and subscribe to it with due date
• Github