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Paris-based DeFi Web Developer - React/Node & Web3 MVP
Builds a decentralized options trading web app using React and Node.js, integrating blockchain/Web3 protocols in a Paris-based fintech startup.
DeFi Web Developer with React and Node Skills in Paris
Build a decentralized options trading web app using React, Node.js, and TypeScript, integrating with Solana or Ethereum for a DeFi startup in Paris.
DeFi-Centric Full-Stack Developer (React, Node, Next) in Paris
Build a decentralized options-trading platform using React, Node.js, and Next.js, with optional Solana/Ethereum smart-contract work.
DeFi Full-Stack Developer (React/Node) — Paris (Relocation)
Builds the frontend and backend for a decentralized options trading platform using React, Node.js, and TypeScript.
DeFi Full-Stack Developer (React, Node, Next, Paris, office)
Build a decentralized options trading platform on Solana using React, Node.js, and Next.js in a Paris office.
Full-Stack Blockchain Developer (React, Node, Solana)
Build a decentralized options trading platform using React, Node.js, and Solana smart contracts in Paris.
Node.js and React Developer specializing in DeFi Solutions (Paris, Office)
Build a DeFi options-trading web app using React, Node.js, and TypeScript, integrating Solana/Ethereum smart contracts and EVM tooling.
Web3 Full-Stack Developer (React, Node, Solana)
Build a decentralized options trading platform using React, Node.js, and Solana; architect secure peer-to-peer infrastructure for DeFi.
Senior Full-Stack Developer (React, Node, Blockchain)
Build a decentralized options trading platform using React, Node.js, and blockchain tech like Solana or Ethereum smart contracts.
React Native Developer (Blockchain Exp.) | Big O Soft
Build Web3 and mobile apps using React Native, integrating blockchain features like smart contracts (Solidity, Web3.js, ethers.js).
Backend Engineer (Java) - Future Opportunity in Newcastle upon Tyne - hedgehog lab
Build scalable Java (Spring/Java EE) backends using AI, blockchain, DevOps, and cloud-native tools in an agile team.
Java Backend Engineer — Cloud-Native & AI-Driven
Builds cloud-native Java backends using Spring/Java EE, integrating AI and blockchain to optimize performance and scale systems.
Real-Time Backend Engineer | Crypto Trading Platform (London)
Builds and maintains backend services for a crypto trading platform, focusing on order management, market data processing, and real-time APIs using Kotlin/Python, REST/WebSockets, SQL, and cloud tools.
Remote Senior Node.js Backend Engineer- Payments & Crypto
Build and maintain Node.js backend services for crypto and fiat payment systems, ensuring secure and efficient transaction processing.
Lead Web3 Backend Engineer - Hybrid (London)
Lead backend engineer building Web3 infrastructure at Citi’s Digital Assets Platform, integrating blockchain networks, wallets, and smart contracts in an enterprise setting.
Senior Multi-Chain Backend Engineer
Builds scalable backend services for high-volume, multi-chain blockchain transactions and leads DeFi protocol integrations using Node.js/TypeScript and deep Web3 expertise.
Lead Web3 Backend Engineer - Digital Assets Platform
Lead backend engineer building enterprise-grade Web3 services for a digital assets platform, integrating blockchain networks with Java and Web3 libraries.
Web3 Backend Engineer for Digital Assets Platform
Build and deploy Web3-native components for Citi’s digital asset platform, integrating blockchain protocols and tokenization with Java/Spring or Node.js backends.
Senior Web3 Backend Engineer, Blockchain Platform
Builds enterprise-grade backend services for a blockchain platform, integrating with Web3 networks and tokenized assets using Java/Spring.
Trading Backend Engineer (Kotlin/Python) – Real-Time
Build and maintain core infrastructure for a global crypto trading platform, focusing on high-volume order management, real-time market data, and low-latency APIs.