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Build and review Solidity smart contracts for Web3 dApps, optimizing gas and security while collaborating with frontend, QA, and product teams.
Senior blockchain developer building Web3 apps with Ethereum/Solana/Solidity smart contracts and modern JS/TS stacks for fast-paced startups.
Build and secure Ethereum smart contracts, optimize blockchain services, and maintain CI/CD pipelines for a fast-growing Canadian crypto exchange.
Lead engineer building secure, scalable blockchain and microservices solutions in Java/Python for JPMorgan’s payments tech stack, including smart contracts and cloud infrastructure.
Builds and integrates Web3 components for Citi’s digital asset platform using Java, Solidity, and blockchain protocols like Ethereum and Hyperledger Besu.
Build and integrate Web3 components for Citi’s digital asset platform, including smart contracts, blockchain protocol connectors, and on-chain event listeners using Java/Spring and Web3 libraries.
Build and optimize a high-performance DeFi derivatives exchange, designing backend systems, smart contracts, and APIs for zero-fee trading on a fast blockchain.
Build and optimize Web3 backend services and smart contracts in Java, Solidity, and Rust to power Binance’s stablecoin and DeFi ecosystem, ensuring scalability and security.
Full Stack Engineer – (Angular / C# / Azure / Solidity) Job Description: Emerging technologies such as Distributed Ledger Technology (DLT), cloud, and API-driven ecosystems are reshaping financial market…
Design and build decentralized blockchain products using Solidity and zero-knowledge proofs, balancing security with real-world usability.
Build decentralized products with end-to-end ownership, focusing on blockchain architecture, Solidity, and zero-knowledge proofs for privacy-preserving on-chain systems.
Build and maintain a Web3 streaming platform: React/Vue3 frontends with multi-wallet login, Node.js middleware for on-chain video metadata, and Solidity smart contracts for NFT trading pools and ERC-4337 wallets.
Build web apps and NFT marketplace features using React.js, optimize performance, and develop back-end systems for NFT minting projects.
Builds and optimizes high-performance backend systems in Go for a trading platform, integrating blockchain networks and smart contracts with AWS, Kafka/Pulsar, and Kubernetes.
Build full-stack web apps that blend Web3/crypto (smart contracts, dApps) with AI features, using React/Next.js, Node.js/Python, and libraries like Ethers.js and LangChain.
Build full-stack web apps integrating Web3/crypto and AI, using React/Next.js, Node.js/Python, and smart contracts; connect UIs to blockchain protocols and LLM APIs.
Build ML/AI models to optimize asset-management strategies and fintech products using blockchain, tokenization, and NFT data.
Design and build scalable backend systems in Solidity to handle billions of transactions for a blockchain startup.
Builds secure, scalable data products for Chainlink’s oracle network, including smart contracts in Solidity/Rust and distributed systems in Go, to power DeFi and blockchain applications.
Build an AI-first platform for renewable energy financing via asset tokenization, automating development with tools like Claude Code and deploying secure full-stack apps on AWS.
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