Fun.xyz - Product Engineer

Our client is hiring multiple Product Engineers (mid, senior, staff). Joining a team that owns user-facing flows and developer integrations, balancing performance, reliability, and UX for dApps and financial platforms integrating crypto payments. You will work directly with protocol and backend teams to solve technically complex, product-centric problems for onchain payments at scale. 

Key Responsibilities

• Design, build, and maintain SDKs and UI components that embed Checkout into web2 and web3 apps.
• Work across the stack (front-end focused, full-stack-capable) to ship performant, reliable, and intuitive payment experiences.
• Collaborate with protocol and backend teams to integrate complex payment, routing, and identity flows into simple developer and user APIs.
• Own features end-to-end: scoping, implementation, testing, and iteration based on product and customer feedback.
• Contribute to code reviews, technical design discussions, and engineering standards to keep quality and velocity high as the team scales.

Requirements

• 3+ years of experience with JavaScript and TypeScript

• Professional experience with modern React-based front-ends.

• Strong understanding of full-stack development: client-side performance, state management, and integrating with backend APIs.
• Demonstrated ownership of user-facing products or features, ideally in payments, fintech, or high-traffic transactional products.

• Fintech / financial-services product experience require.