Blockchain Engineer (Rust, Cuda, Cryptography, Wasm)

About Us We’re a digital entertainment company creating engaging online platforms people love. Since 2021, we’ve been building something different. Our brands include MetaWin, WOW Vegas, BetZoo Media, and Rolla, with more to come. With teams in London, Malta, Gibraltar and Miami (launching 2025), each platform is designed to deliver unique, engaging, and innovative digital experiences. From immersive betting platforms to exciting casino games and interactive online entertainment, our brands deliver cutting-edge technology and user-focused design. Arena prioritises innovative technology, decentralised where possible, and builds with an AI-first mindset. Not constrained by legacy systems, we are blue sky thinkers changing the landscape of digital entertainment. Overview We’re building a brand new, fully bespoke blockchain from the ground up. Not a fork. Not a clone. Every component consensus, execution, networking, tooling is being designed and written in-house. This is greenfield infrastructure engineering at its most ambitious. We need an AI-native, product-minded Full Stack Blockchain Engineer to join the core team. You’ll be building and shipping blockchain-powered products end-to-end: from the protocol layer and smart contracts through to backend infra and frontend UX. Our work spans gaming, DeFi and other emerging Web3 categories. This is a hands-on role for someone who lives and breathes Web3, ships fast, and embraces AI-powered development to stay ahead. We’re especially excited about builders who already have real on-chain projects under their belt and a hunger to grow fast. Responsibilities Build dApps end-to-end: design and deploy secure, gas-efficient smart contracts; wire up backend infrastructure; deliver clean frontends that hide blockchain complexity Contribute to core chain development: write protocol-level code in Rust, C++ and Python across consensus, execution and networking layers Ship products, not just code: collaborate on design, UX and incenti