Top freelancers

Programming

Top Freelance Blockchain Developers

401

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…

100 USD

1 606

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…

1000 USD

1 598

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…

300 USD

0 609

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

1 359

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…

300 USD

1 404

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…

Serhii N.

Cryptocurrency & Blockchain · Javascript and Typescript

3 0

784

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0 471

by Octogamex

Cryptocurrency & Blockchain

NFT Marketplace , NFT Metadata , Smart Contract , NFT Collection Generation , NFT Art , Etherscan , Utility Token , Ethereum Network , Tokenomics , NFT Character , NFT , Product Roadmap Octogamex is a decentralized NFT marketplace developed for…

0 528

Property

Cryptocurrency & Blockchain

Ownity is the first aggregating NFT co-ownership platform. It enables anyone with an Ethereum wallet to explore the major marketplaces for top collection NFTs, co-purchase and co-manage them, trade their fractions, and split any rewards they may…

10 000 USD

0 358

BRing Finance

Cryptocurrency & Blockchain

bRing is a decentralized cross-chain platform with unique Defi features. The two main benefits of our platform are liquidity staking and farming.

Vladislav Gostiuc

Web Programming · Cryptocurrency & Blockchain

5 1

5.0

711

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I'm a Full Stack Developer with 9+ years of experience building scalable Web and Mobile apps across AI, SaaS, and Fintech domains. I specialize in React, Next.js, Node.js, Python, React Native, and Flutter, delivering high‑performance solutions from concept to deployment. My projects include AI chat systems, onboarding assistants, content automation tools, and financial tracking platforms, each focused on efficiency, automation, and user impact. I combine clean architecture, secure APIs, and excellent UI/UX to ship products clients love. If you need a developer who can handle full‑stack AI…

0 355

Staderlabs staking platform

Cryptocurrency & Blockchain

Stader Labs is a liquid staking platform designed to provide users with the ability to stake their cryptocurrency assets while maintaining liquidity. This innovative approach allows users to earn staking rewards without locking up their tokens for a…

1 372

Magic Eden NFT marketplace

Cryptocurrency & Blockchain

Magic Eden is a prominent NFT marketplace that facilitates the buying, selling, and collecting of non-fungible tokens (NFTs) across multiple blockchain networks.

Oleksandr Gluhovsky

Cryptocurrency & Blockchain · Javascript and Typescript

6 0

5.0

694

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Python Telegram Bot Developer | Business Process Automation Hi! I specialize in developing Telegram bots and automating processes using Python. What I do: I create bots of any complexity — from simple assistants to comprehensive systems with well-thought-out architecture, databases, and external integrations. My approach: I develop each bot with a focus on real value — to save your time, eliminate routine tasks, and work reliably. I carefully plan the logic, data structure, and user experience so that the result is not just functional, but truly an effective tool. My strengths: Deep work with…

Bot for monitoring NFT sales on the TON blockchain.

150 USD

0 207

Bot for monitoring NFT sales on the TON blockchain.

Cryptocurrency & Blockchain

The bot monitors sales and all details, including the name of the collection and NFT, price, metadata, link to the NFT, and transaction in the blockchain.

0 516

Trading systems on cryptocurrencies

Cryptocurrency & Blockchain

Creating automated trading and algorithmic systems on CEX and DEX

Ivan Vinnik

Python · Cryptocurrency & Blockchain

2 0

691

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Hello!I am a Quantitative Software Engineer with a background in high-energy physicsI specialize in developing infrastructure for data collection, algorithmic trading, and Web3. From deep R&D (Research & Development) of markets and strategy backtesting to writing fast execution routers - I help transform a raw idea into a systematic, profitable algorithm.How exactly I can help you (My services): R&D, On-chain Analytics & Niche Discovery: Have an idea (e.g., an arbitrage algorithm or a MEV bot) but aren't sure where to deploy it best? I conduct deep quantitative market research: analyzing…

Yevgeny R.

Cryptocurrency & Blockchain · PHP

2 0

556

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0 633

NFT Music Marketplace

Cryptocurrency & Blockchain

The development of the NFT marketplace on #blockchain Ethereum, which unites musical authors. The seller has the opportunity to sell the lottery, collections at a fixed price and take bets through the auction. For buyers, 8 cryptocurrencies are…

0 1 362

Intelligent Contract + Personal MSM Office

Cryptocurrency & Blockchain

They implemented a referral program and deposits on smart contracts. We have a personal office for the insurer.

0 582

Tracking the Blockchain Drug Chain

Cryptocurrency & Blockchain

A platform for tracking the entire drug chain on the blockchain from the pharmaceutical factory to the consumer. The main advantage of this project in the transparent data of the drug’s transportation across all channels and the exclusion of…

Bogdan F.

Project Management · Cryptocurrency & Blockchain

26 0

520

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Mixail Lutsckiy

Python · Data Parsing

12 0

5.0

516

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Python developer specializing in web scraping, Telegram bots, automation, and integrations.I develop:data parsersTelegram bots via the Telegram APIautomation scriptsprocessing of Excel / CSV / JSON / XMLintegrations with APIs and external servicesI focus on results: automating processes, gathering the necessary data, reducing manual work, and building clear and stable solutions.

Dmitro Blazhevsky

Python · Cryptocurrency & Blockchain

19 0

492

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0 216

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…

0 155

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,…

Anton M.

Python · Cryptocurrency & Blockchain

45 3

4.2

491

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I am always looking for optimal solutions for both the developer and the users. Technology stack: - Python web: Django, DRF, Celery, FastAPI - Machine Learning - Docker, Nginx, PostgreSql, AWS - Svelte

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