3,144 Crypto & Web3 jobs
Open tech roles at companies in crypto, blockchain and web3.
Full-Stack Web Developer (React, Node, Next, DeFi, Paris, office)
Build the MVP web application for ZeroDays' peer-to-peer decentralized options (DeFi) network as a full-stack developer, onsite in Paris alongside the co-founders. Core stack: React, Node.js, TypeScript and Next.js, with blockchain experience across Solana/Ethereum and EVM smart contracts.
Full-Stack Web Developer (React, Node, Next, Paris, relocation)
Full-stack developer at ZeroDays, a Polychain-backed startup building a decentralized options-trading network (DeFi) in Paris. Day-to-day work is React/Node.js/TypeScript (Next.js a bonus) on a peer-to-peer platform moving from EVM/Solidity to Solana; deep blockchain knowledge is required, Solana familiarity a major plus, and a relocation package is offered to international candidates.
Full-Stack Blockchain Developer (React, Node, Solana)
Full-stack developer at ZeroDays, a Polychain Capital-backed DeFi startup in Paris building a decentralized options trading network. Day to day you build web applications with React, Node.js, and TypeScript and work with blockchain technology and smart contracts (Ethereum experience a plus; Solana in the title).
DeFi Smart Contract Developer (Paris, office)
Smart contract developer at ZeroDays, a startup building a decentralized options trading network (DeFi). The role focuses on designing and developing secure smart contracts for Solana/EVM chains, working on-site in Issy-les-Moulineaux near Paris with relocation support.
DeFi Web Developer (React, Node, Paris, relocation)
Full-stack web developer building the MVP web application for ZeroDays, a venture-backed startup creating a decentralized options (DeFi) network on Solana, working directly with the co-founders in Paris. Core stack is React, Node.js, TypeScript, and Next.js, with a deep understanding of blockchain required.
DeFi Web Developer with React and Node Skills in Paris
Full-stack developer building the MVP web application for a decentralized options trading network (DeFi), working directly with the startup's co-founders in a Paris onsite role. Core stack is React, Node.js and TypeScript, with required Solana/Ethereum blockchain experience and Next.js preferred.
Développeur Full-Stack Senior (React, Node, Blockchain)
Senior full-stack developer to lead the MVP of ZeroDays, a VC-funded startup building a decentralized options trading network. Day-to-day you build the platform end to end with React, Node.js and TypeScript plus Solana/Ethereum smart contracts, working directly with the founders.
Decentralized Options Network Architect
Full-stack developer at ZeroDays (Polychain Capital-backed) building a decentralized peer-to-peer options trading network on Solana, based in Paris. Day to day: building web applications with React, Node.js and TypeScript, plus blockchain/Solana integration work.
DeFi: Architect the Future of Leveraged Trading with Smart Contracts
Core smart contract engineer at ZeroDays, a Polychain-backed Paris startup building a decentralized options and leveraged-trading protocol on Solana. Day to day you design and secure on-chain contracts, with React/Node.js/TypeScript full-stack work as a plus.
DeFi-Centric Full-Stack Developer (React, Node, Next) in Paris
Full-stack developer at ZeroDays, a Polychain Capital-backed startup in Paris building a decentralized options trading network. Day to day you'd build peer-to-peer trading platform features with React, Node.js and TypeScript (Next.js a plus), with blockchain/Solana and smart-contract experience valued.
DeFi Full-Stack Developer (React, Node, Next, Paris, office)
Full-stack developer at ZeroDays, a Polychain-backed startup building a decentralized options trading network on Solana, based in its Paris office. Day to day: building a secure peer-to-peer DeFi platform's frontend and backend with React, Node.js, and TypeScript (Next.js a plus), backed by solid blockchain understanding.
System Software Engineer
System software engineer at a Tel Aviv algorithmic trading firm, building and maintaining the infrastructure behind autonomous digital-asset trading systems: Linux/AWS production environments, CI/CD pipelines, automation for provisioning, monitoring and networking, plus performance troubleshooting across the stack.
Blockchain Developer Full-Stack (React, Node, EVM)
Full-stack blockchain developer for ZeroDays, a Polychain Capital-backed DeFi startup building a decentralized options trading network that is launching on Solana. Day-to-day work centers on platform development with React, Node.js, and TypeScript, with Solana or Solidity smart-contract skills a plus.
Back End Developer (hybrid)
Backend developer for a blockchain company building a crypto platform that lets sports fans engage with European football clubs for rewards. Day-to-day: PHP/Symfony and REST API development on high-volume systems, hybrid from offices in Malta, Lyon, or Madrid. Salary up to €55k.
DevOps Manager (remote in EU)
Managerial DevOps role leading a multi-site team at a global blockchain/crypto company, overseeing development and operations of internal and external applications and infrastructure rather than hands-on architecture. Core stack includes AWS/Azure/GCP, Docker, Kubernetes, Terraform, and Bash/Python scripting; remote anywhere in the EU.
Backend Developer (hybrid)
Backend developer building high-volume blockchain-based services for a crypto platform that lets sports fans engage with football clubs and earn sports-based rewards. Day-to-day is PHP (ideally Symfony) and REST API development on big-data systems, working hybrid from offices in Malta, Lyon, or Madrid for up to €55k.
Front-End Developer
Front-End Developer building web interfaces for a well-established crypto platform, working remotely from anywhere in the EU. The role requires 3+ years of post-graduate JavaScript front-end experience with Angular, React, or Vue, and is hired via a Malta-based recruitment agency.
Multimedia Designer | Fintech | Crypto | MYR 5,000 - 8,000
Multimedia designer at a fast-growing CFD brokerage in Kuala Lumpur, creating marketing and promotional visuals for online and offline campaigns in collaboration with the design lead, social media team, and copywriters. Core tools are the Adobe suite (Photoshop, Illustrator, InDesign, XD, Dreamweaver, Sketch), with HTML/CSS knowledge a plus.
Data Analyst | CFD FX | Fintech | Crypto
Data analyst at a fast-growing CFD/forex broker in Kuala Lumpur: analyzes forex trading, market, and customer data, builds dashboards and reports, supports forecasting models, and automates data pipelines. Core tools: Python/R, SQL, Excel, Tableau/Power BI.
Quantitative Developer | Crypto Industry | Based In Malaysia
Builds and maintains high-performance, production-grade crypto trading infrastructure in C++ and Python for a global digital asset trading firm's new Malaysia hub — integrating exchange APIs (REST/WebSocket/FIX), risk and PnL tooling, and cloud CI/CD on AWS/GCP to support 24/7 live trading with real capital.