python web developer Solidity telegram bot golang web3 cryptocurrency ethereum telegram python bot Blockchain
Maks Goncharenko

Maks Goncharenko

Ukraine

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 K.

Nikolay K.

Ukraine

Cryptocurrency & Blockchain · Javascript and Typescript

6 1
258
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Solidity token contract for a multi-level referral system
3000 USD
278
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…
Serhii Savenkov

Serhii Savenkov

Ukraine

Cryptocurrency & Blockchain · Desktop Apps

0 0
256
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by Zakupki.Prom
305
by Zakupki.Prom
Cryptocurrency & Blockchain
Problem: the customer needs a 100% data security guarantee Solution: It was agreed with the customer on the replication of the database with a backup on hidden replicas (through an increase in infrastructure operating costs). Result: the customer…
Vladislav Makovsky

Vladislav Makovsky

Ukraine

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
157
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.
340
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…
Artem M.

Artem M.

Ukraine

Cryptocurrency & Blockchain · Python

1 0
234
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I am a Full-Stack and Blockchain developer with experience in building web applications, integrating blockchain solutions, and automating processes. I deliver high-quality projects while meeting deadlines and client requirements. Telegram Bot Development: Working with Telegram Bot API, database integration, and business process automation Web Development: Frontend (HTML, CSS, JavaScript, React, Vue), Backend (Python, Flask, Django, Node.js) Blockchain: Solidity, Web3.js, crypto wallet integration, smart contract development and auditing API Integrations: Connecting third-party services,…