Oleksandr

Oleksandr Kolesnyk
Frontend (React/Next/Vue/Nuxt) Developer

• @Alex_ndr1984 • [открыть контакты](см. выше в блоке «контактная информация»)
• https://github.com/Alex3584 • [открыть контакты](см. выше в блоке «контактная информация»)

SUMMARY
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Frontend Developer with commercial experience in building modern, scalable Web/SPA
applications. Skilled in React, TypeScript, Nuxt3 (Vue3), and UI frameworks. Strong background in
responsive design, reusable components, and integration with REST APIs. Proficient in optimizing
performance, improving usability, and collaborating with designers to deliver user-friendly solutions. Self-
organized and detail-oriented team player, continuously learning and adapting to new technologies.

SKILLS & OTHER
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Technical Skills:

• Frontend: JavaScript (ES6+), TypeScript, React (Hooks, Context, Router), Redux/Toolkit, Nuxt3
(Vue 3: Composition API, Vue Router, Pinia), Next.js (learning).
• UI & Styling: HTML5, CSS3, BEM, SASS/SCSS, Styled Components, Material UI, Formik,
Responsive/Adaptive Design.
• Tools & Build: Webpack, Babel, Vite, Git/Git-flow, CI/CD.
• Other: RESTful API integration, JWT, Figma (UX/UI), React Native, AI/Neural Networks.
• Methodologies: Agile/Scrum, Sprint Planning, Daily Stand-ups, Code Review.

Language: English (Intermediate), Ukrainian (Native), Russian (Native)

WORK EXPERIENCE
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Full Stack Developer June 2025 – Present
Crazymonkey

● Developed the online casino platform frontend with Nuxt3 (Vue 3), focusing on UI/UX and modular
architecture.
● Integrated slot providers and third-party APIs into user-facing components.
● Implemented real-time features with WebSockets and Pusher.
● Improved performance and responsiveness of client-side rendering.

Frontend Developer April 2025 – June 2025
Tradelytic

● Built new modules and components with React, TypeScript, Material UI, and SCSS.
● Integrated APIs and optimized data handling for smoother user workflows.
● Worked closely with backend developers to ensure stable production releases.

Full Stack Developer June 2024 – March 2025
TopIzdato

● Built SPA applications with React, TypeScript, Webpack, and Babel.
 ● Created reusable components, applied BEM and SCSS for maintainability.
● Integrated Strapi and REST APIs on the frontend side.
● Collaborated with designers via Figma, improved usability and release speed.

Frontend Developer October 2023 – Present
Freelance

● Delivered SPA applications and landing pages with React, Material UI, SCSS, and adaptive design.
● Integrated REST APIs (Axios, Fetch), optimized requests and performance.
● Applied TypeScript for strict typing, reducing bugs.
● Experimented with Next.js, React Query, Redux Toolkit, Zustand, and built small projects on GitHub.
● Developed AI assistant platform frontend with chat components and modular UI.

EDUCATION
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Full Stack Developer September 2023 - May 2024
Genius Space

Full Stack Developer February 2023 - February 2024
ITVDN

The Fundamentals of Software Testing September 2023 - October 2023
QATestLab Training Center

Specialist Degree, Industrial and Civil Engineering September 2009 - June 2012
Kirovohrad National Technical University