Full-Stack Developer – Crypto | JavaScript/PHP | Blockchain | £80,000 - £85,000 | London (Onsite)/(fully remote) Join a pioneering fintech startup on a mission to reshape how crypto is used in everyday payments. Backed by a strategic partnership with Tellers, this is one of the few companies bringing real-world utility to Web3 – and they're looking for a Full-Stack Developer to play a key role in the journey. You'll be building a high-impact crypto payments platform from the ground up — working with wallets, APIs, and blockchain networks to deliver a seamless web-based product experience. Experience & Skills Required: • 5 years of hands-on JavaScript development (full-stack) • Strong backend development experience with PHP, Java, Node.js (or similar web stack) • Proven experience working with blockchain infrastructure • Familiar with implementing crypto wallets (Cestode and non-Cestode) • Experience integrating third-party APIs and service providers • Solid understanding of how blockchain networks operate • Experience working with WalletConnect is a plus • Confident working with APIs both as a provider and consumer • Passionate about crypto and its potential in commerce What You'll Be Doing: • Developing a crypto payments web app using modern technologies • Building and integrating Cestode and other wallets • Working across the stack to connect frontend with blockchain logic • Collaborating on architecture and product direction • Managing integrations with service providers and crypto networks How to Apply: If you're a developer with solid blockchain knowledge and a passion for bringing crypto into the real world — this is your opportunity to be part of something truly innovative. Apply now, and I (Daniel Wilson-Meghie) will be in touch to walk you through the next steps. Full-Stack Developer – Crypto | JavaScript/PHP | Blockchain | £80,000 - £85,000 | London (Onsite)/(fully remote) ADZN1_UKTJ