Vadim

Cryptocurrency & Blockchain · Website Development

10 0
5.0
5 219
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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
152
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
138
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
127
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
117
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
110
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…
Maks Goncharenko

Web Programming · Cryptocurrency & Blockchain

41 0
267
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As a back end developer with a passion for blockchain technology, I have gained valuable experience and skills in various projects and platforms. Previously, I worked at Everstake, a leading staking service provider, and at INC4, a blockchain technology development company, where I contributed to the open-sourced AirDAO Bridge project. I performed extensive research on challenging blockchain topics, such as ETH proof of stake, ETH slashing and penalties, and others. I also championed the importance of code quality and architecture within the team, leading by example and reminding team members…
Nikolay Semenyuta

Cryptocurrency & Blockchain · Javascript and Typescript

6 0
830
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7+ years of commercial experience in software development. 4+ years of experience in blockchain development (dApps for EVM based blockchains) Arrived as React developer then start extensive research into crypto market, DeFi, and blockchain solutions. Practical experience with Ethereum, Solidity, OpenZeppelin, React js, Truffle, Web3, Ganache, REST. Created and deployed ERC20 token smart contracts (Ethereum, Polygon nettworks, solidity). Designed and implemented frontend layer using React. js, JavaScript, CSS, HTML. Ticker module utilizing web socket channel and asynchronous API calls to…
Metadata for 3D NFT Collection
100 USD
609
Metadata for 3D NFT Collection
Cryptocurrency & Blockchain
Task: Create a metadata for a full 3D display of the NFT collection in which all the images are the same. The model should be interactive both in the wallet and on the marketplace. Execution: A metadata with the necessary attributes was generated…
Remint Solana NFT App
1000 USD
601
Remint Solana NFT App
Cryptocurrency & Blockchain
Prehistory: the client released a collection on a lounchpad, where he was wrongly made a metadata and confined the entire collection + did not give access to the account authority updates. Task: Create a site where the user will be able to connect…
NFT collection on Ethereum
300 USD
612
NFT collection on Ethereum
Cryptocurrency & Blockchain
Task: Create a NFT collection on Ethereum Implementation: After the call with the customer discussed all the points, I got layers and started the generation of images with a metadata. Further, a smart contract was created with all the wishes of…
50 USD
362
by Solana Airdroper
Cryptocurrency & Blockchain
Task: Write a script for the automatic sending of tokens and NFT to the Solana network to the address list.Implementation: A realised Python script based on Solana CLI with two operating modes: 1 .The user enters the token address name and the…
ERC1155 Certificate for 01k Academy
300 USD
412
ERC1155 Certificate for 01k Academy
Cryptocurrency & Blockchain
Task: Make non-transferable NFT certificates for academic students.Implementation: After consultation, the decision was made to implement certificates on the basis of the ERC1155 contract in the Polygon network.I made a contract taking into account…
Dmitro Blazhevsky

Python · Cryptocurrency & Blockchain

19 0
504
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Automation of token creation on four.meme / pump.fun
221
Automation of token creation on four.meme / pump.fun
Cryptocurrency & Blockchain
Project: Automation of Token Creation on four.meme / pump.fun Stack: Python, Web3.py, AsyncIO, RPC/Websocket, SPL / EVM tooling (depending on the network) Role: Python / Blockchain Developer (Middle) Project Description Developed a tool for automated…
BSC (BEP20) Bundle
158
BSC (BEP20) Bundle
Cryptocurrency & Blockchain
Stack: Python, Web3.py / Flashbots RPC, AsyncIO Role: Backend / Blockchain Developer (Middle) Project Description Developed a service for forming, simulating, and sending transaction bundles in EVM-compatible networks (Ethereum, BSC, Polygon,…
Illia Dunaiev

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
54
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
82
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…
Nikolay

Cryptocurrency & Blockchain · Javascript and Typescript

6 1
258
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Solidity token contract for a multi-level referral system
3000 USD
281
Solidity token contract for a multi-level referral system
Cryptocurrency & Blockchain
Fully functional token contract for any EVM network. There is a referral registration feature by nickname, after which commissions are accrued for each purchase and sale of tokens by referrals up to 7 levels and the ability to mint these commissions…
Vladislav Makovsky

Cryptocurrency & Blockchain · Javascript and Typescript

0 0
240
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I've been building web and blockchain products for 4+ years now, starting with frontend work and gradually going deeper into the Web3 stack as the space grew. These days I work across the full cycle: smart contracts in Solidity, backend APIs in Node.js, React frontends, and desktop tools with Electron. On the blockchain side I've shipped things on Ethereum, BSC, Polygon, Arbitrum, Base, Scroll, Solana and TON, from token launches and NFT platforms to staking systems, auctions and trading automation. One area I've spent a lot of time in recently is Telegram Mini Apps. Building crypto…
Desktop application for wallet management and for multi-accounting
10 000 USD
159
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.
347
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…