web developer python Solidity telegram bot golang web3 ethereum cryptocurrency telegram python bot mongodb
Vadim

Vadim

Ukraine Plus

Cryptocurrency & Blockchain · Website Development

10 0
5.0
5 229
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Peiko — AI & Web3 Development Company for Scalable Digital Products Peiko is a full-cycle software development company that has been helping startups, technology companies, and enterprise businesses build and scale complex digital products since 2017. Our core areas of expertise are AI solutions and Web3 products. We also have extensive experience in developing SaaS platforms, FinTech systems, marketplaces, high-load web platforms, and mobile applications. Over the years, we have successfully delivered 120+ projects for clients from the United States, Europe, and other international markets,…
Crypto exchange | DeFi Ecosystem | Node.js | React | JavaScript
133
Crypto exchange | DeFi Ecosystem | Node.js | React | JavaScript
Cryptocurrency & Blockchain
Welcome to the next-generation Decentralized Finance (DeFi) Ecosystem, where innovation meets functionality in the vast realm of finance. With our state-of-the-art platform, you'll be introduced to an expansive suite of features, fine-tuned to cater…
Crypto wallet KYC: Token Management | React Native
128
Crypto wallet KYC: Token Management | React Native
Cryptocurrency & Blockchain
Introducing our flagship Mobile Custodial Wallet, a seamless blend of convenience, security, and efficiency tailored for the modern crypto enthusiast! Let's dive deeper into what sets this application apart in the crypto-verse: Core features: - One-…
Crypto exchange | web app | PancakeSwap | Solidity | React
114
Crypto exchange | web app | PancakeSwap | Solidity | React
Cryptocurrency & Blockchain
The idea of the project was to make a fork of PancakeSwap (pancakeswap.finance), but adjust the open-source code of PancakeSwap in accordance to client's designs. We successfully did the auditing and further integration of client's own smart-…
Crypto exchange Simpleex | Crypto wallet | Laravel | React
108
Crypto exchange Simpleex | Crypto wallet | Laravel | React
Cryptocurrency & Blockchain
A P2P exchange for buying and selling digital assets, where users can trade digital assets. Peiko implemented digital wallets to store USDT (TRC-20), and all transaction fees are sent to the customer's wallet. Peiko also implemented a platform where…
SaaS The Aviator - online casino game | Node.js | React | PHP
93
SaaS The Aviator - online casino game | Node.js | React | PHP
Cryptocurrency & Blockchain
The Aviator game is an online casino game themed around aviation. Peiko realized such features: - Central interface for players to access the Aviator Game. - Visual elements and design that align with the aviation theme. - Functionality to place…
Anastasiia

Anastasiia

Ukraine

Web Programming · Cryptocurrency & Blockchain

20 0
5.0
432
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ITZeyz — Building Scalable, Future-Proof Digital Products We turn complex ideas into scalable, tech-driven solutions. We are an ambitious IT team specializing in web, mobile, and blockchain solutions — building scalable products that automate processes and drive efficiency. ✅ We operate officially, provide contracts, and guarantee transparent collaboration. Flexible payment options for your convenience — we accept all major types of payments. Why ITZeyz? 8+ years of experience in developing successful products; Market trust – more than 50 web platforms, mobile apps, and blockchain systems…
Pavlo

Pavlo

Ukraine

Cryptocurrency & Blockchain · Web Programming

8 1
916
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Senior Full-Stack Engineer with 8+ years of experience building scalable web platforms, blockchain solutions, and AI-powered applications. I help startups and businesses design, develop, and launch reliable products from concept to production. My expertise includes: • Web Development (Node.js, TypeScript, React, Next.js, NestJS, PostgreSQL, Redis, REST, GraphQL) • Blockchain Development (Solidity, Ethereum, EVM chains, Smart Contracts, DeFi, DEX, Tokenization, Web3 Integrations, Security Reviews) • AI Solutions (LLM Integration, RAG Systems, AI Agents, OpenAI, Ollama, LangChain, Knowledge…
Nikita Loza

Nikita Loza

Ukraine

Cryptocurrency & Blockchain · Web Programming

7 0
861
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The Hulk Finance
670
The Hulk Finance
Cryptocurrency & Blockchain
The full-stack web3 application. The main technologies used: React.js, Web3.js and Solidity
TheDefenders
660
TheDefenders
Cryptocurrency & Blockchain
The full-stack web3 application. NFT and MNT. The main technologies used: React.js, Web3.js and Solidity
NiceToken
737
NiceToken
Cryptocurrency & Blockchain
The full-stack web3 application. Mint token, NFT, as well as NFT marketplace. The main technologies used: React.js, Web3.js and Solidity
by Bridgevpn
534
by Bridgevpn
Cryptocurrency & Blockchain
Development of web3 applications. The main technologies used: React.js and web3.js
Illia Dunaiev

Illia Dunaiev

Ukraine

Python · Cryptocurrency & Blockchain

4 0
5.0
171
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Hello, my name is Ilya, and I am an experienced freelancer with over 5 years of work experience in various fields. I am a Multi-stack Developer. I have participated in, developed various parts of, or full projects in different fields and tasks listed below. Projects: Parsing: products, data, videos, photos, and everything that can be found on the internet. Including captcha bypassing, proxy usage, etc. I have ready-made tools capable of processing more than 5 thousand requests per second, depending on the resource. Automation: browsers, applications, programs (Desktop and Mobile). Includes…
Lotos
2000 USD
50
Lotos
Cryptocurrency & Blockchain
Worked as a backend and scraping specialist for the site lotos io. Implementing data collection from web3. Working with nodes, as well as backend work with web3.
Multi-Chain DeFi Data Pipeline (Solana / ETH / BSC)
700 USD
68
Multi-Chain DeFi Data Pipeline (Solana / ETH / BSC)
Cryptocurrency & Blockchain
Large-scale on-chain data collection and analytics infrastructure across three networks: Solana, Ethereum, and BSC. The goal was to build a fast, proprietary analytics database rather than relying on third-party explorers. Started with deploying…
Danu Darii

Danu Darii

Moldova

Web Programming · Cryptocurrency & Blockchain

10 1
218
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Website Development: Professional services are provided for creating fully responsive web solutions of any complexity, aligned with current industry standards and modern security requirements. Development includes corporate websites, e-commerce platforms, landing pages, blogs, and information portals, each designed with a tailored structure and functionality. Advanced web applications are implemented with high interactivity, dynamic content, and scalable architecture. Modern frameworks and libraries are applied to ensure stable performance and fast response times. Integration with external…
The NFT Project
1500 USD
555
The NFT Project
Cryptocurrency & Blockchain
Intelligent Contract and Mint #Solidity #Blockchain
NFT DeFI Queens Desing (Laiding)
3000 USD
594
NFT DeFI Queens Desing (Laiding)
Cryptocurrency & Blockchain
Developing Smart Contract and Mint on the Opensea, and on the Website! The Polygon Developing an individual design, wrap! #blockchain #node.js #nft #Solidity #Javascript #web sites #connect
Viktorya

Viktorya

Armenia

Web Programming · Cryptocurrency & Blockchain

0 0
270
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Full-Stack / Backend Developer with 9+ years of experience in building SaaS platforms, automation systems, APIs, admin panels, and scalable web applications. Main specialization: Backend development with PHP / Laravel Complex business logic and system architecture REST API and third-party integrations Payment systems and process automation High-load and scalable web applications ⚙️ Technologies I work with: PHP, Laravel, Node.js MySQL, Redis REST API and external integrations Linux, Nginx JavaScript, jQuery SaaS platforms and admin systems Automation and infrastructure tools Over the years…
Vladislav Makovsky

Vladislav Makovsky

Ukraine

Cryptocurrency & Blockchain · Javascript and Typescript

0 0
226
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Developer of blockchain applications (Solidity, NODE JS)Experience: Developer of open source blockchain applications on Ethereum, BSC, TRON, and other blockchains. Development of smart contracts in Solidity, including tokens, NFTs, decentralized exchanges, and other applications. Development of web applications on NODE JS using WEB3. Integration of smart contracts with other applications and systems. Experience working in the outsourcing blockchain company DECENTRAL, where I worked as a developer of blockchain applications and smart contracts on Ethereum.Education: Bachelor's degree in…
Desktop application for wallet management and for multi-accounting
10 000 USD
138
Desktop application for wallet management and for multi-accounting
Cryptocurrency & Blockchain
A desktop application has been developed and created for operating systems Windows/Linux/iOS. The application provides management, monitoring, addition, and deletion of EVM private keys. Registration and obtaining an API key through a Telegram bot,…
Smart contracts created for a real estate investment platform.
334
Smart contracts created for a real estate investment platform.
Cryptocurrency & Blockchain
These contracts allow users to invest their funds in real estate and receive profit from the sale of the property. The tokens we have created represent your right to a share in this property, and the contracts ensure that your investments are safe…