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  1. Freelancers

Oleksandr Kostiuchenko

Offer Oleksandr work on your next project.

Ukraine Odessa, Ukraine
10 months 5 days back
Available for hire available for hire
on the service 1 year
  • javascript
  • React
  • TypeScript
Freelancer Oleksandr K. — Ukraine, Odessa. Core skill — HTML & CSS, Javascript and Typescript

Rating

Successful projects
No data
Average rating
No data
Rating
181
HTML & CSS 7
2065 place out of 5610
Javascript and Typescript 14
1419 place out of 3460

Language proficiency level

Українська Українська: fluent
Русский Русский: fluent
English English: upper-intermediate
Español Español: intermediate

CV

Website and Digital Content Development
✔️ Programming (HTML, CSS, JS, React, TypeScript)
✔️ Layout, SPA, responsive design
✔️ Design, video editing, creatives, 3D
✔️ Content, Telegram, SMM, copywriting
✔️ Multilingual: UA/EN/ES/RU
✔️ Fast, high-quality, always in touch
✈️ TG: Sanya_Kostiuchenko

Skills and abilities

Programming

Design & art

Services


Photo, Audio & Video

Promotion

Translation


Writing

Portfolio


  • Portfolio website

    HTML & CSS
    Portfolio website — example of freelancer's portfolio work in category HTML & CSS
    Responsive, multi-section portfolio website. Used HTML5, CSS3, JavaScript, and UI libraries like Swiper and Accordion to create interactive elements. Practiced working with REST APIs using Axios and explored basic database interactions. This project helped me improve my ability to plan, organize, and apply technical documentation. #html/css/js

  • WebStudio landing page

    HTML & CSS
    WebStudio landing page — example of freelancer's portfolio work in category HTML & CSS
    WebStudio landing page using only HTML and CSS.

    - The project features a clean layout with sections like services, portfolio, and contacts, showcasing basic website structure.
    - I implemented a modal window for ordering services, adding interactivity.
    … - The website is responsive, ensuring proper display on different devices.

  • Green Harvest

    HTML & CSS
    Green Harvest — example of freelancer's portfolio work in category HTML & CSS
    Dynamic website focused on healthy living, built with HTML, CSS and Vite. Emphasized accessibility, mobile-first design, and smooth UI/UX interactions. External library integration and responsive layout development

  • React Phonebook App

    Web Programming
    React Phonebook App — example of freelancer's portfolio work in category Web Programming
    React Contact Book App — a full-featured contact manager where I practiced backend integration, state management, and user authentication.

    - Users can register, log in, and securely manage their contact list.
    - Core features include adding, editing, deleting, and searching contacts.
    … - Enhanced with avatars, favorite contacts, contact groups, and A–Z filtering.
    - Global state is handled using Redux Toolkit (createSlice & createAsyncThunk).
    - Axios manages all HTTP requests

Activity

  Latest proposals 10
Making edits to the design and functionality of the React website
76 USD
HTML emails
21 USD
Need a front-end
451 USD
Create a logo and corporate style
34 USD
Website layout according to the design
451 USD
Creating an HTML email template for Sendy
29 USD
Creating an HTML email newsletter template for Sendy
29 USD
Need to make several products on a ready-made template
45 USD
Technical task for implementing structured data
23 USD
Adjusting CSS styles on the website
16 USD