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Backend Engineer
Build and maintain backend services for a blockchain-based platform, focusing on scalability and security.
Senior Full-Stack developer
Senior Full-Stack developer building a Flutter client and backend services for a crypto/fintech project with blockchain integrations, PostgreSQL, Kafka, and high-load financial operations.
Senior Backend Engineer – DeFi APIs & Data Pipelines
Build and own GraphQL APIs and data pipelines for Morpho’s DeFi products, ensuring sub-second responses at scale while collaborating with frontend and product teams.
Senior Backend Engineer - Dev Tooling & Offchain (Equity)
Builds offchain infrastructure and developer tooling for EVM-based smart contracts using TypeScript and Solidity in a web3 startup.
Senior Backend Engineer (Go)
Builds and maintains a high-scale, multi-tenant cashier platform for crypto, handling deposits, withdrawals, and settlements with Go and distributed systems.
Remote Software Engineer - Data Growth & AI Automation
Builds automation and workflows in TypeScript to streamline Web3 customer onboarding and improve operational efficiency using AI.
Data Engineer - AI Safety
Build and maintain a petabyte-scale data platform for an AI-safety startup, designing storage, APIs, and governance to support LLM/VLM training and millions of daily API calls.
Senior Data Engineer
Build resilient data pipelines and self-serve tooling for a crypto market maker, normalizing market, trading, and portfolio data in real time for desks, risk, finance, and research.
DEVELOPPEUR SENIOR JAVA FULL STACK (Squad Crypto) H/F
Build and maintain a crypto-asset management application using Java/Spring for back-end and Vue.js/Angular for front-end, while collaborating with digital-banking and DevOps teams.
Développeur Full-Stack Senior (React, Node, Blockchain)
Build the MVP of a decentralized options trading platform using React, Node.js, and blockchain smart contracts (Solana/Ethereum).
Full-Stack Web Developer (React, Node, Next, DeFi, Paris, office)
Builds a decentralized options trading web app using React, Node, Next.js, and TypeScript, contributing to a DeFi protocol on Ethereum or Solana.
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.
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).
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.