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Oleksandr H.

@SashaDev1

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Full-Stack AI & Web Developer

$20 USD / Hour

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Ukraine (3:30 PM)

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Joined on October 25, 2025

$20 USD / Hour

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I’m a Full-Stack AI & Web Developer with strong expertise in building scalable, high-performance, and user-friendly applications. With a perfect blend of frontend finesse and backend power, I deliver complete end-to-end solutions tailored to client needs.

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Portfolio

Portfolio

13694468
This ecommerce app is designed to deliver a fast, seamless, and enjoyable shopping experience. With a clean interface, smooth navigation, and powerful search tools, users can easily explore products, track orders, and check out with confidence. Built for performance and clarity, the app combines modern design with intuitive features to make online shopping effortless across all devices.

Smart Shopping Made Simple

This ecommerce app is designed to deliver a fast, seamless, and enjoyable shopping experience. With a clean interface, smooth navigation, and powerful search tools, users can easily explore products, track orders, and check out with confidence. Built for performance and clarity, the app combines modern design with intuitive features to make online shopping effortless across all devices.

Smart Shopping Made Simple

This ecommerce app is designed to deliver a fast, seamless, and enjoyable shopping experience. With a clean interface, smooth navigation, and powerful search tools, users can easily explore products, track orders, and check out with confidence. Built for performance and clarity, the app combines modern design with intuitive features to make online shopping effortless across all devices.

Smart Shopping Made Simple

This ecommerce app is designed to deliver a fast, seamless, and enjoyable shopping experience. With a clean interface, smooth navigation, and powerful search tools, users can easily explore products, track orders, and check out with confidence. Built for performance and clarity, the app combines modern design with intuitive features to make online shopping effortless across all devices.

Smart Shopping Made Simple

13694463
This 3D website, crafted with Framer, delivers a visually engaging and interactive experience built for modern users. Smooth animations, depth-driven visuals, and intuitive navigation bring every section to life, creating a dynamic interface that feels both futuristic and polished. Optimized for speed, responsiveness, and seamless interaction, it combines cutting-edge 3D elements with a clean, professional design that makes the experience memorable across all devices.

Immersive 3D Dining Experience

This 3D website, crafted with Framer, delivers a visually engaging and interactive experience built for modern users. Smooth animations, depth-driven visuals, and intuitive navigation bring every section to life, creating a dynamic interface that feels both futuristic and polished. Optimized for speed, responsiveness, and seamless interaction, it combines cutting-edge 3D elements with a clean, professional design that makes the experience memorable across all devices.

Immersive 3D Dining Experience

This 3D website, crafted with Framer, delivers a visually engaging and interactive experience built for modern users. Smooth animations, depth-driven visuals, and intuitive navigation bring every section to life, creating a dynamic interface that feels both futuristic and polished. Optimized for speed, responsiveness, and seamless interaction, it combines cutting-edge 3D elements with a clean, professional design that makes the experience memorable across all devices.

Immersive 3D Dining Experience

13694458
This website is built to provide customers with a clean, fast, and intuitive way to browse the restaurant’s menu, explore specials, and make reservations effortlessly. The design focuses on performance, accessibility, and smooth navigation across all devices. With a responsive layout, optimized loading, and a visually appealing interface, it delivers a polished digital dining experience that feels both modern and reliable.

Modern, user-friendly restaurant

This website is built to provide customers with a clean, fast, and intuitive way to browse the restaurant’s menu, explore specials, and make reservations effortlessly. The design focuses on performance, accessibility, and smooth navigation across all devices. With a responsive layout, optimized loading, and a visually appealing interface, it delivers a polished digital dining experience that feels both modern and reliable.

Modern, user-friendly restaurant

This website is built to provide customers with a clean, fast, and intuitive way to browse the restaurant’s menu, explore specials, and make reservations effortlessly. The design focuses on performance, accessibility, and smooth navigation across all devices. With a responsive layout, optimized loading, and a visually appealing interface, it delivers a polished digital dining experience that feels both modern and reliable.

Modern, user-friendly restaurant

13694468
This ecommerce app is designed to deliver a fast, seamless, and enjoyable shopping experience. With a clean interface, smooth navigation, and powerful search tools, users can easily explore products, track orders, and check out with confidence. Built for performance and clarity, the app combines modern design with intuitive features to make online shopping effortless across all devices.

Smart Shopping Made Simple

This ecommerce app is designed to deliver a fast, seamless, and enjoyable shopping experience. With a clean interface, smooth navigation, and powerful search tools, users can easily explore products, track orders, and check out with confidence. Built for performance and clarity, the app combines modern design with intuitive features to make online shopping effortless across all devices.

Smart Shopping Made Simple

This ecommerce app is designed to deliver a fast, seamless, and enjoyable shopping experience. With a clean interface, smooth navigation, and powerful search tools, users can easily explore products, track orders, and check out with confidence. Built for performance and clarity, the app combines modern design with intuitive features to make online shopping effortless across all devices.

Smart Shopping Made Simple

This ecommerce app is designed to deliver a fast, seamless, and enjoyable shopping experience. With a clean interface, smooth navigation, and powerful search tools, users can easily explore products, track orders, and check out with confidence. Built for performance and clarity, the app combines modern design with intuitive features to make online shopping effortless across all devices.

Smart Shopping Made Simple

13694463
This 3D website, crafted with Framer, delivers a visually engaging and interactive experience built for modern users. Smooth animations, depth-driven visuals, and intuitive navigation bring every section to life, creating a dynamic interface that feels both futuristic and polished. Optimized for speed, responsiveness, and seamless interaction, it combines cutting-edge 3D elements with a clean, professional design that makes the experience memorable across all devices.

Immersive 3D Dining Experience

This 3D website, crafted with Framer, delivers a visually engaging and interactive experience built for modern users. Smooth animations, depth-driven visuals, and intuitive navigation bring every section to life, creating a dynamic interface that feels both futuristic and polished. Optimized for speed, responsiveness, and seamless interaction, it combines cutting-edge 3D elements with a clean, professional design that makes the experience memorable across all devices.

Immersive 3D Dining Experience

This 3D website, crafted with Framer, delivers a visually engaging and interactive experience built for modern users. Smooth animations, depth-driven visuals, and intuitive navigation bring every section to life, creating a dynamic interface that feels both futuristic and polished. Optimized for speed, responsiveness, and seamless interaction, it combines cutting-edge 3D elements with a clean, professional design that makes the experience memorable across all devices.

Immersive 3D Dining Experience

13694458
This website is built to provide customers with a clean, fast, and intuitive way to browse the restaurant’s menu, explore specials, and make reservations effortlessly. The design focuses on performance, accessibility, and smooth navigation across all devices. With a responsive layout, optimized loading, and a visually appealing interface, it delivers a polished digital dining experience that feels both modern and reliable.

Modern, user-friendly restaurant

This website is built to provide customers with a clean, fast, and intuitive way to browse the restaurant’s menu, explore specials, and make reservations effortlessly. The design focuses on performance, accessibility, and smooth navigation across all devices. With a responsive layout, optimized loading, and a visually appealing interface, it delivers a polished digital dining experience that feels both modern and reliable.

Modern, user-friendly restaurant

This website is built to provide customers with a clean, fast, and intuitive way to browse the restaurant’s menu, explore specials, and make reservations effortlessly. The design focuses on performance, accessibility, and smooth navigation across all devices. With a responsive layout, optimized loading, and a visually appealing interface, it delivers a polished digital dining experience that feels both modern and reliable.

Modern, user-friendly restaurant

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Experience

Senior AI & Mobile App Developer

Feb, 2025 - Jul, 2025

•

5 months, 3 days

Nova Labs

Feb, 2025 - Jul, 2025

•

5 months, 3 days

- Designed and deployed advanced funding arbitrage bots using Python and Rust, operating across decentralized. - Built intelligent automation engines using OpenAI API and LangChain to support real- time trade decision-making and dynamic position adjustments. - Engineered full-stack Apps using FastAPI, PostgreSQL, React Native, Tailwind CSS, and Web3.js, including wallet integrations and smart contract UIs

Flag of

Kyiv, Ukraine

Feb, 2025 - Jul, 2025

•

5 months, 3 days

Full-Stack Developer

Jun, 2019 - Sep, 2022

•

3 years, 3 months

Zenith Systems

Jun, 2019 - Sep, 2022

•

3 years, 3 months

- Architected decentralized applications using Solidity smart contracts, React UIs, and FastAPI/Django backends - Integrated funding rate APIs, smart contract calls, and AI engines into automated trading systems and dApps - Built scalable infrastructure with Docker, AWS, and automated CI/CD pipelines for client deployment needs

Flag of

Texas, United States

Jun, 2019 - Sep, 2022

•

3 years, 3 months

Education

Kirovohrad National Technical University

2005 - 2010

•

5 years

bachelor of computer science

Flag of

Ukraine

2005 - 2010

•

5 years

Freelancer logo US (International) / English
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