Find the Best Smart Contracts Jobs

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On average from 2M+ reviews

Check out a sample of the 173 Smart Contracts jobs posted on Upwork

30+ hrs/week
Hours needed
More than 6 months
Duration
Expert
Experience level

We're building coin-promoting, a platform for listing and promoting crypto tokens. Users can list coins, vote to boost visibility, reac…

Smart ContractsCryptocurrencySolidityBlockchainNode.jsJavaScript
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Less than 30 hrs/week
Hours needed
1 to 3 months
Duration
Intermediate
Experience level

We are seeking an experienced Node.js Backend developer to build the backend for a comprehensive crypto platform. The platform will fea…

Smart ContractsJavaScriptAngularJSNode.jsMongoDB
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$700
Fixed-price
Expert
Experience level

I need a security audit of one Solidity smart contract — a PvP escrow contract handling USDC deposits between two players with server…

Smart ContractsEthereumSolidity
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Solidity Smart Contract Developer

Fixed-price ‐ Posted 2 days ago
$15
Fixed-price
Expert
Experience level

Develop, design, test and deploy smart contracts on EVM- compatible blockchains Build blockchain-based applications including NFTs, DA…

Smart ContractsJavaScriptBlockchain DevelopmentCryptocurrencyBlockchainEthereumSolidity
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Less than 30 hrs/week
Hours needed
3 to 6 months
Duration
Intermediate
Experience level

I am looking for a reliable freelancer to assist with cryptocurrency-related research, transaction coordination, and administrative tas…

Smart ContractsAdministrative Support
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$30
Fixed-price
Expert
Experience level

We are looking for a backend developer to build a lightweight, asynchronous Python script using Web3.py to listen to live state changes…

Smart ContractsData ScrapingPHPAPIPythonJavaScript
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30+ hrs/week
Hours needed
More than 6 months
Duration
Intermediate
Experience level

We’re looking for outreachers who can find and start conversations with potential clients in crypto / Web3. Your job: Search for new…

Smart ContractsCommunity OutreachLead Generation
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Web,block chain,engineer

Hourly ‐ Posted 3 days ago
Less than 30 hrs/week
Hours needed
3 to 6 months
Duration
Intermediate
Experience level

We are looking for an experienced Web3/Blockchain Engineer to help us build decentralized applications and smart contracts. You should…

Smart ContractsBlockchain
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Crypto Compliance Consulting Expert

Hourly ‐ Posted 2 days ago
Less than 30 hrs/week
Hours needed
1 to 3 months
Duration
Intermediate
Experience level

Hello, I am seeking a professional with expertise in crypto compliance consulting. The ideal candidate will provide advice and guidance…

Smart ContractsFinTech ConsultingComplianceCryptocurrencyRegulatory Compliance
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Solana dex bot

Fixed-price ‐ Posted 2 days ago
$750
Fixed-price
Intermediate
Experience level

Hello, I require an automated arbitrage bot specifically designed for the Solana blockchain. This bot should operate across a minimum…

Smart ContractsTypeScriptNext.jsRustSolidityCryptocurrencyBlockchain
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