fun.xyz
Fun.xyz builds crypto payment infrastructure and developer tools—APIs, SDKs, and checkout—to let companies accept and send onchain payments across assets and blockchains. It sells enterprise-grade payments and wallet services to fintechs, consumer apps, and marketplaces, with usage-based and transaction fees. Privately held and headquartered in New York, it raised a Series A in 2026.
Open Positions at fun.xyz
7 open positions
Build and deliver scalable checkout and onramp solutions for strategic customers as a founding Forward Deployed Engineer. You’ll bridge technical discovery, product development, customer rollout, and business growth while working with LLM-powered systems.
Build the core blockchain infrastructure powering consumer fintech and Web3 payments. You’ll design secure smart contracts, protocol integrations, and cross-chain systems across multiple blockchain ecosystems.
Build and scale full-stack SDK software powering crypto Checkout across web2 and web3 environments. You’ll shape product experiences and infrastructure for seamless blockchain-based payments.
Build the backend infrastructure powering Fun’s Web3 payments platform, including payment routing, settlement, and transaction services across chains and providers. You’ll work on high-performance systems that make blockchain-based financial applications easier and more reliable to use.
Build the backend infrastructure powering Fun’s consumer-facing Web3 payments platform, including payment routing, settlement, and transaction services. This in-office NYC role offers scope across mid, senior, staff, and principal levels.
Build and scale SDK software powering seamless crypto Checkout experiences across web2 and web3. This product-focused engineering role spans the stack and combines high-performance systems with thoughtful user experience.