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Check out a sample of the 171 Smart Contracts jobs posted on Upwork

Blockchain Developer for MVP Enhancement

Fixed-price ‐ Posted 1 month ago

$2,000
Fixed-price

Intermediate
Experience level

I’m seeking a talented blockchain developer to enhance an innovative MVP for a cutting-edge platform leveraging decentralized technolog…

Smart Contracts Solidity Node.js React Mobile App Development Web Application UX & UI Smart Contract Blockchain Development
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Forex trading auto bot

Hourly ‐ Posted 12 days ago

Less than 30 hrs/week
Hours needed

Less than 1 month
Duration

Intermediate
Experience level

I have forex trading codes which I will like to build it into an auto bot. I let me know your price and we can get started if we come t…

Smart Contracts Python Forex Trading Scripting Bot Development Automation JavaScript Rust Smart Contract Blockchain Development Ethereum API Blockchain Cryptocurrency
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Less than 30 hrs/week
Hours needed

1 to 3 months
Duration

Expert
Experience level

🛡 Crypto Exchange Audit & Fix (BSC-20) | Web App + Smart Contracts Are you a Web3 security expert and full-stack blockchain developer?…

Smart Contracts Smart Contract Node.js React Blockchain
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Less than 30 hrs/week
Hours needed

Less than 1 month
Duration

Intermediate
Experience level

We are building a next-generation digital platform that integrates cryptocurrency, decentralized systems, MLM architecture, and gamifie…

Smart Contracts Ruby on Rails React Native Smart Contract Blockchain MySQL Django Laravel Node.js Next.js React Mobile App Development Java Flutter iOS Android
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Less than 30 hrs/week
Hours needed

1 to 3 months
Duration

Expert
Experience level

Hi, I am seeking a skilled Blockchain Developer who has expertise in integrating Web3 wallets and smart contracts with custom websites.…

Smart Contracts Smart Contract Blockchain Ethereum Solidity
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$1,500
Fixed-price

Expert
Experience level

We're launching Drive American ($DRIVE) — a culturally-charged, meme-powered Solana token with high-voltage branding and a clear roadma…

Smart Contracts Blockchain Development Solidity Cryptocurrency Smart Contract Ethereum Blockchain
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Web3 Dev

Hourly ‐ Posted 17 days ago

Less than 30 hrs/week
Hours needed

Less than 1 month
Duration

Intermediate
Experience level

We're developing a gaming dApp, web2 and Web3 integration, but we need an extra dev on our team. We are having some trouble with a swap…

Smart Contracts Lean Startup Web Development AI Chatbot TypeScript Ethereum Blockchain Development Solidity Smart Contract web3.js Bitcoin JavaScript
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Less than 30 hrs/week
Hours needed

1 to 3 months
Duration

Expert
Experience level

We are seeking an experienced Smart Contract Auditor to review and assess the security of our blockchain projects. The ideal candidate…

Smart Contracts Blockchain Development Smart Contract Cryptocurrency Ethereum Blockchain
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Not sure
Hours needed

Less than 1 month
Duration

Expert
Experience level

We are looking for an experienced expert in blockchain, casino slots, sports betting, coin flip game logic, and bots to make minor upda…

Smart Contracts Smart Contract Python Gambling Ethereum Blockchain Telegram API Node.js Next.js React
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Senior Blockchain developer - NFT Marketplace

New
Hourly ‐ Posted 13 hours ago

Not sure
Hours needed

1 to 3 months
Duration

Intermediate
Experience level

We are seeking a Senior Blockchain Developer or Blockchain Team Lead to join our team and spearhead the development of a cutting-edge N…

Smart Contracts Smart Contract Ethereum Blockchain Development Blockchain Web Development JavaScript
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