Dmytro Binkovskyi
Not just a website. A problem solved.
Offer Dmytro work on your next project.
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Offer work 
Kyiv,
Ukraine
1 month 30 days back
available for hire
age 25 years
on the service 7 years
Rating
Successful projects
Average rating
Language proficiency level
Українська: fluent
Русский: fluent
English: pre-intermediate
Skills and abilities
Programming
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Cryptocurrency & Blockchain
from 117 USD for project
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Databases & SQL
from 95 USD for project
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HTML & CSS
from 68 USD for project
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Java
from 95 USD for project
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Javascript and Typescript
from 95 USD for project
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Python
from 95 USD for project
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Web Programming
from 95 USD for project
Design & art
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Interface Design (UI/UX)
from 95 USD for project
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Logo Design
from 95 USD for project
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Mobile Apps Design
from 95 USD for project
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Web Design
from 95 USD for project
Portfolio
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200 USD Cross-Chain Bridge
Cryptocurrency & Blockchain
Project Description:
A cross-chain bridge has been developed for exchanging digital assets between multiple blockchain networks. The goal of the project is to provide a secure, decentralized, and ultra-fast token transfer without intermediaries. The solution was implemented as a full-fledged DeFi infrastructure prototype with multi-network support and automatic transaction routing through smart contracts and oracle protocols.
TECHNICAL IMPLEMENTATION:
… • Implemented asset transfer between Ethereum, BNB Smart Chain, Polygon, Arbitrum, and Avalanche networks.
• Utilized LayerZero, Wormhole, and Axelar protocols for cross-chain communication and message routing.
• Integrated Chainlink oracles for price validation and transaction state verification.
• Smart contracts written in Solidity, deployed and tested via Hardhat with multi-chain configuration support.
• Implemented ERC-20 standard tokens, including wrapped tokens and bridge contracts for asset locking and minting.
• Built a Node.js (Express) relay server for event tracking, transaction status processing, and cross-network synchronization.
• Monitoring implemented with Prometheus + Grafana, data storage via MongoDB.
• Frontend built on React with integration through Wagmi, RainbowKit, and support for MetaMask / WalletConnect.
RESULT:
• Fully functional MVP with bidirectional token exchange between networks.
• Transfer time up to 30 seconds during devnet testing.
• Implemented multi-signature validation system and event logging for full transparency.
• Interface supports automatic network detection and real-time error handling.
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9000 USD M&V Coin — a next-generation large-scale crypto application
Cryptocurrency & Blockchain
M&V Coin is a full-featured multifunctional crypto platform
It combines the convenience of a mobile app, a powerful backend built on microservices architecture, and advanced integration with external services and exchanges.
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Frontend: Mobile Application
• Cross-platform app built with React Native, adapted for iOS and Android
• Secure and convenient phone number login
• Intuitive UI for:
• wallet
• cross-chain transfers
• P2P exchange
• token farming
• Integrated Telegram-based game synchronized with the app, allowing users to earn tokens, farm, and increase their engagement in the ecosystem
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Backend: Java + Microservices
• Robust microservice architecture using Java Spring Boot
• Full integration with WhiteBit:
• deposit/withdrawal to exchange-generated addresses
• balance retrieval and display
• cross-chain transfers via WhiteBit API
• Custom-built P2P market:
• deal logic
• user verification
• transaction history and analytics
• Integration of a proprietary token with in-app tokenomics
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Security and Stability
• Authorization with phone verification and additional checks
• Backend protected via JWT, rate-limiting, and audit logging
• Secure encrypted storage of private data on the server side
• Monitoring and logging through Grafana and Prometheus
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Admin Panel
• Dashboard with key stats
• P2P deal and user activity monitoring
• Manual moderation and blocking capabilities
• Flexible tokenomics, rate, and limit configuration
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Token and Internal Economy
• Custom token developed for:
• incentivizing user activity
• gamification
• paying service fees
• Well-designed reward system for actions: transfers, farming, game participation
• Ability to withdraw earnings or use them within the ecosystem
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Key Technologies
• React Native
• Java (Spring Boot)
• PostgreSQL
• Redis / RabbitMQ
• WebSocket (real-time updates)
• WhiteBit API
• Telegram Bot API
• Docker + Kubernetes
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500 USD Landing Page for the GERADSGN Online Branding Course
Web Programming
A responsive one-page website designed to promote an original online course in brand design. The project features a dark aesthetic with a focus on visual drama and a premium feel.
Includes adaptive layout, custom animations, sales sections, and a blog area.
#React #WebDevelopment #DesignCourse #LandingPage #UI #Animation
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soloviy — an app about unity
Web Programming
Soloviy — a mobile application that allows storing and exploring Ukraine's linguistic diversity: dialects, Surzhyk words, phraseologisms, and regional expressions.
Technological stack:
• Backend: Java + Spring Boot
… REST API with authentication, validation, and user content processing. API structured according to RESTful principles, with separate endpoints for working with words, categories, users, likes, and search.
• Database: MySQL
Relational model with connections between words, geography, categories, and user activity. Indexing of fields ensures fast search and filtering.
• Frontend: React Native
Cross-platform application with a lightweight, adaptive UI. Implements client-side search, dark theme support, dynamic loading of words, and backend integration.
Functionality:
• Adding and moderating new words.
• Filtering by regions of Ukraine.
• User authorization and profiles.
• Like system, popular words, category-based search.
• Role-based access model (users, moderators, administrators).
Goal: to create a platform where linguistic diversity becomes lively and accessible to everyone through technology and community interaction.
#springboot #mysql #restapi #reactnative #mobileapp #ukrainianlanguage #backenddevelopment #communityplatform
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150 USD Landing Page for the “Potato Papa” Street Food Franchise
Web Programming
A responsive one-page website developed to promote a street food franchise. The main focus was on strong visual presentation, clear structure, and an intuitive call to action.
The site was built from scratch using React, with design created in Figma.
#React #LandingPage #StreetFood #WebDevelopment #Franchise
