Oleksandr

Krutko Oleksandr [відкрити контакти](див. вище в блоці «контактна інформація»)
@Krutlex

Frontend Developer [відкрити контакти](див. вище в блоці «контактна інформація»)

SKILLS
Development: React , JavaScript, Typescript, Next, Redux , Redux Toolkit, Redux Thunk,
Zustand, RTK Query, React-Hook-Form, CSS/SCSS/Material-UI ,i18n
Processes: Trello ,Scrum
Additional tools: VScode ,Git ,Gulp,vite

WORK EXPERIENCE
06/2023 - 01/2025
Kozak Agency: Frontend Developer
Wrote various custom and reusable components and created a UI-Kit for an internal company
project in order to improve the code structure and not to write unnecessary components for each
new task, thus increasing the free time for writing new functionality and making the project more
flexible.
Carefully followed the project architecture and best practices of writing code, making it readable,
semantically correct and reusable, and often participated in code review to improve code quality.
Created validation for a large part of the forms on the project, making validation flexible and
extensible according to the project requirements,
Implemented lazy loading, virtualisation, improving the user experience and reducing the total
amount of time spent waiting for a page to render and reducing the load on the user's device.
Optimised most of the components using modern react chips, thus reducing the number of
component redraws, server requests, and response times
Adhered to Gitflow methodology and Scrum development principles

Stack: React , Next, Typescript , Redux Toolkit , RTK Query , React-Hook-Form , Material-UI/SCSS , Git ,
vite
FIVE SYSTEMS: React developer 10/2022-05/2023

Developed layouts for multiple websites with meticulous attention to detail, ensuring each
design adhered to the Pixel Perfect principle. .
Created beautiful animations with SCSS, made adaptive and rubber layout for all devices
Interacted with the team and proposed design solutions that were approved by them and the
client.
Сreated the correctly scalable architecture in order to make it easier to expand the project.
Integrated the project with the backend using Redux Thunk, separated business logic from ui
to make components simpler and bring logic to a higher level.
Optimized the redrawing of components as much as possible, separated responsibility and
logic, which allowed to increase performance
Stack: React,Typescript ,Redux ,Redux Thunk,SCSS,GIT

EDUCATION
Kharkiv National University of Radioelectronics: Bachelor's degree, 2019-2023 -
Artificial Intelligence
Kharkiv National University of Radioelectronics: Master's degree, 2023-2025 -
Artificial Intelligence