Find the Best Smart Contracts Jobs
Check out a sample of the 169 Smart Contracts jobs posted on Upwork
Web3 Protocol Engineer
Hourly ‐ Posted 3 days agoHours needed
Duration
Experience level
We're building a confidential payment layer for cross-chain salary and contractor payouts. We're looking for an engineer comfortable wi…
Crypto Payment Gateway
Fixed-price ‐ Posted 3 days agoFixed-price
Experience level
Build a scalable crypto payment gateway where merchants can easily integrate our API, accept cryptocurrency payments, and receive autom…
Blockchain Wallet Development Expert
Hourly ‐ Posted 3 days agoHours needed
Duration
Experience level
We are seeking an expert to develop a blockchain wallet for our team. The wallet must support all major networks, especially stable coi…
Web3 On-Chain Game - Blockchain Full-Stack Developer
Hourly ‐ Posted 2 days agoHours needed
Duration
Experience level
We are looking for an experienced Blockchain Full-Stack Developer to join our team and help build a next-generation fully on-chain Web3…
Blockchain Promotion Specialist
Fixed-price ‐ Posted 2 days agoFixed-price
Experience level
We are seeking a Blockchain Promotion Specialist to enhance our online presence and engagement. The role involves managing social media…
Web3/Blockchain engineer
Hourly ‐ Posted 3 days agoHours needed
Duration
Experience level
We are hiring an experienced Web3 and Blockchain Engineer to develop decentralized applications and write secure smart contracts. You s…
Need a smart contract engineer
Hourly ‐ Posted 3 days agoHours needed
Duration
Experience level
I am looking for a skilled Solidity Engineer to join our blockchain engineering team and help design, develop, and secure smart contrac…
Senior Backend + Mobile Engineer — Payment Card Integration (Solana/USDC)
Hourly ‐ Renewed 2 days agoHours needed
Duration
Experience level
Senior Backend + Mobile Engineer — Payment Card Integration (Solana/USDC) We're building a Web3 super app on Solana with a self-custod…
Lead Blockchain Developer
Hourly ‐ Posted 2 days agoHours needed
Duration
Experience level
We're looking for a Lead Blockchain Developer to join us on this journey. If you love creating smart contracts and building decentraliz…
Full Stack Web3/Solidity Engineer
Hourly ‐ Posted 2 days agoHours needed
Duration
Experience level
We're building the next generation of Real World Asset (RWA) infrastructure, connecting traditional assets with blockchain technology.…
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