Олександр

Alexandr Litovchenko About me
JS Front-end developer (React/Next)
I take a thoughtful and user-oriented approach to development. I aim
to understand who we’re building for, what they need, and how they’ll
use it— to deliver meaningful solutions from the start. I’m a reliable
and collaborative team player, easy to communicate with, and always
focused on delivering quality work.

Professional Experience
CICH
[open contact info](look above in the "contact info" section) 01/2022 – 12/2024 | Odesa, Ukraine
[open contact info](look above in the "contact info" section) Contributing to the development of a scalable application from
inception using modern front-end technologies, including
[open contact info](look above in the "contact info" section) JavaScript, React, Next.js, TypeScript, Chakra UI, Shadcn/UI,
Tailwind CSS, TanStack Query, React Router, i18n, and React Hook
iSefero
Form.

Key responsibilities included:
Component & Page Development: Created reusable and
Languages •

maintainable UI components with a focus on accessibility,
usability, and responsiveness.
Ukraine
Performance Optimization: Refactored frontend logic and
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English improved rendering performance for complex forms and data-
heavy views.
Bug Fixes & Stability: Diagnosed and resolved UI and API
Skills
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integration issues to ensure consistent functionality.
Backend Collaboration: Helped with Go backend refactoring -
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JavaScript, React, Next.js, TypeScript. rewrote part of the architecture from microservices to monolith,
updated API parameters.
TanStack Query, Redux-toolkit, React- Responsive & Clean UI: Applied modern design principles for
router, React-hook-form, i18n, TanStack
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seamless experience across devices.
Table, Amplitude.
Storly
Shadcn/UI, Talwind CSS, Chakra UI,
A marketplace for advertising services
Hero UI.
01/2025 – present
HTML/CSS, adaptive and responsive Implemented missing pages and features to complete the project
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markup. scope.
Introduced request caching, improving performance and
Bitbucket, Jira, Git, Figma, Docker.
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reducing server load.
NestJS, Go, REST, ORM, Proto files. Refactored parts of the project using RESTful architecture for
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better scalability.
Optimized development build process, cutting build times in
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development mode by 50%.
Enhanced user experience (UX) by:
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Eliminating unnecessary page reloads.
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Enhancing loading feedback and disabling buttons during
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async operations to improve user clarity.
Adjusting modal window behavior when creating different
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entities for more intuitive interaction.
Provided occasional back-end support by fixing incorrect
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sorting logic, updating accepted data formats in APIs, and
resolving minor bugs affecting functionality.