About MoonPay 🌖💸 Hi, we’re MoonPay. We’re here to onboard the world to Web3. Why? Because we think Web3 is a unique and democratising technology. It gives people back control of their money, digital identity, data, and property like nothing else before it. What we do We’re the leading infrastructure company in Web3. This means we offer our partners everything from payment solutions (we call them 'Ramps') to minting software for digital collectibles, like NFTs. And over 3 0 million people around the world now trust our products — just take a look on Trustpilot. We’re also big on collaborations. And we've worked on stunts, drops, and partnerships with some of the world's most prestigious and forward-thinking brands. But that’s not all. We have also built our own consumer app because we wanted to see if we could build a better Web3 account. It’s taken off in a big way, and we're working hard to continually improve it and to strive for perfection. So whatever your background, we’re sure there’s something for you here. Come help us build the future of Web3 and digital ownership. 🌍 Location supported This role can be performed remotely from the United Kingdom, Poland, South Africa, Spain, Portugal, or Romania . If you are currently located outside these countries, relocation will be required. Visa sponsorship and relocation support are available for the UK only for this role. Unfortunately we do not offer business to business contracting arrangements. 🌔 About the Opportunity Our Engineering team builds the technology that empowers MoonPay to innovate rapidly and scale efficiently. We thrive in small, collaborative cross-functional teams of 4-6 engineers, working closely with a dedicated Product Manager and Product Data Analyst. MoonPay is seeking individuals with experience in developing blockchain applications and integrations to contribute to our expanding consumer and B2B initiatives. Our focus areas include self-custody wallets, DeFi Trading, on-chain asset delivery, and innovating on what the future of Web3 means. Unfortunately we do not offer business to business contracting arrangements. 🚀 What you will do * Contribute to building and expanding our cutting-edge DeFi Trading infrastructure from the ground up * Play a key role in managing the self-custody wallet infrastructure powering our consumer application * Integrate with a diverse range of L1/L2/L3 networks and liquidity protocols * Engage with an ever-growing landscape of blockchains and networks, spanning the DeFi ecosystem and wallet infrastructure development (currently supporting Bitcoin, Ripple, Ethereum/EVM, and Solana, with more to come) * Collaborate closely with Product Managers to develop innovative solutions and implementation strategies for new features and improvements * Participate in estimations, planning, and execution of projects, features, and integrations as a valued contributor * Develop and maintain thoroughly tested, high-quality, and performant code 💻 What you will be working with/on You will be instrumental in building and maintaining backend, frontend, and mobile applications as part of a collaborative team of developers. You can anticipate regular collaboration with product designers, product managers, data analysts, ML engineers, and other departments, reflecting our strong cross-functional engineering culture. Our current primary tech stack utilizes Typescript with React/React Native (via Expo) 🧑‍🚀 About You Experienced in Web3 Development:   We are interested in candidates with prior experience in the Web3 space. This could include projects involving meme coins, DeFi trading platforms, smart contracts, NFTs, wallets, decentralized applications (DApps), or other related areas Understanding of Cryptocurrency Wallet Infrastructure : An understanding of cryptocurrency wallet infrastructure across various networks (such as Ethereum, Bitcoin, Solana, Ripple, or others) Experienced with RPC Interaction : Experience working with Remote Procedure Calls (RPC) to interact with blockchains is valuable. This could involve using libraries like viem, ethers, solana/ web3.js , or similar JavaScript frameworks to broadcast transactions Have a Working Knowledge of T oken Standards & EIPs : A working knowledge of common token standards like ERC-20 and SPL-20, and Ethereum Improvement Proposals (EIPs) specifically around account abstraction, would be beneficial Experienced Building Scalable Blockchain Infrastructure : Experience in building and scaling infrastructure that interacts with blockchain networks is highly desirable (Bonus) Familiar with Digital Asset & NFT Minting : Familiarity with infrastructure for creating (minting) digital assets and NFTs is a nice to have, particularly within the Ethereum ecosystem