Костянтин

KOSTIANTYN KORNIENKO
Vinnytsia, Ukraine (Open to Remote) | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section)
https://kornienkokostia.github.io/cv/ | https://github.com/kornienkokostia

TECHNICAL SKILLS
Front End | React, Redux, Vue, NextJs, JavaScript, TypeScript, CSS, SCSS, HTML
Backend End | NodeJs, Kotlin
Developer Tools | Git, npm, Webpack

EXPERIENCE
Software Engineer | Classtime Oct 2024 - now
A classroom tool that adds real-time feedback to in-class learning React | TypeScript | Redux | Kotlin
I'm primarily focused on the Front-end of this project using React and Redux, as it's where I'm most proficient. However, I also
contribute to the Back-end, which is developed in Kotlin. I'm still a beginner with Kotlin, but I'm actively working to improve
my skills.
Junior Front-End Developer | TwinSann CRM Aug 2023 - Oct 2024
A customer relationship management system Vue | SCSS
I worked as a Front-end Developer at the furniture company 'TwinSann' in Vinnytsia, where I helped develop a CRM system to
manage and analyze customer interactions and data across the customer lifecycle.

PET-PROJECTS
Front-End Developer | iBlog Jun 2023 - Jul 2023
An app to read, rate and comment articles React | Redux Toolkit | TypeScript | SCSS
Deploy: https://iblog-react.netlify.app
The first load will be not fast because of the backend deploy service (https://render.com/) and its free plan.
There are 6 pages: Home, About, Articles, Article, Account, Admin panel (for navigation I am using React Router)
User can sign in to account
Articles and Account page is not available without sign in
There are settings, where you can switch between 2 themes: light and dark. Also can switch between 3 languages:
English, Russian, and Ukrainian (using the i18-next library)
All requests are sent to the JSON server that I created: https://iblog-server.onrender.com
User can edit all account info on the Account page
Articles page contains search by title, sorting (both ascending and descending order), ability to choose category (right
now there are 4 categories), saving all these parameters in URL, also you can choose view: as a small (with less info,
few per row) and big (more info, one per row)
Article page contains a various number of different blocks, like Text, Image, and Code. Then there is the
recommendations block (right now this block contains the first 6 articles from the database), next to it you can rate the
article and send feedback if you want. And at the end of the page, you will see a comments section, where you can
leave a comment on the article.
Front-End Developer | IMDb Clone (Group project) Feb 2023 - Mar 2023
A clone of world's most popular internet movie database React | TypeScript | SCSS
Deploy: https://imdb-rsclone.netlify.app/
We got all data from TMDB API and used Firebase for user authentication
I created a header with custom dropdowns, a site menu, and a footer
I developed a Movie/TV show page. Which contains all information about the movie like title, rating, etc., poster,
trailer, links to all photos and videos with a carousel with a few of them as previews, top cast section with links to the
full cast & crew page. There are also carousels with top pics and recommendations which are fetched from API and
reviews section with one top-rated review and link to an All reviews page. And if the type of content is a TV show, the
episodes section will be rendered with a link to all episodes page and two top-rated items as a preview
I also developed a Video gallery page and Photo gallery page, Media viewer page, Video viewer page, and Episodes
page
 I added preloaders on each page to show it before data was fetched and content was rendered

Front-End Developer | Online Store (Group project) Dec 2022 - Jan 2023
An online store app TypeSript | SCSS
Deploy: https://kornienkokostia.github.io/online-store/#main
I created all design elements like custom sorting selection, scrollbar, and checkbox for filters, etc.
I developed a bag page and all logic connected to it like adding items to the bag, changing the number of items in the
bag, remove from the bag. All data stored in Local Storage
Also I added a checkout popup, in which I implemented input data validation and also card validation to determine
which payment system it is Mastercard or Visa.
I created a Product page too. It contains an images slider, all information about the product, and the ability to add to the
bag or instantly buy it (goes to the bag page with open checkout popup)

EDUCATION
Donetsk National University - I obtained a Bachelor's degree in Computer Science here. 2020 - 2024
Epan Front-end Course - I've learned HTML, CSS, and JavaScript basics here. 2021 - 2022
Rs School Front-end Course - I've improved my JavaScript knowledge and learned TypeScript here. 2022 - 2023
Rs School Front-end Course Certificate
Rs School React Course - I've learned how to use React + TypeScript and Redux Toolkit here. 2023
Rs School React Course Certificate
Next.js 14 & React - The Complete Guide - I've learned NextJs and server-side rendering here. 2024
Next.js 14 & React Course Certificate