Product Engineer

We are looking for a Product Engineer to design and scale the SDKs and product surfaces powering a seamless Checkout experience across both web2 and web3 environments. This role sits at the intersection of product and engineering, requiring a strong sense of ownership over user-facing experiences and developer integrations. You will work closely with protocol and backend teams to simplify complex onchain payment flows into intuitive, high-performance products for dApps and financial platforms. Responsibilities: Design, build, and maintain SDKs and UI components that embed the Checkout product into web2 and web3 applications. Develop high-performance, reliable, and intuitive payment experiences across the stack (front-end focused, full-stack capable). Collaborate closely with protocol and backend teams to integrate complex payment, routing, and identity flows into simple APIs and user experiences. Own features end-to-end: from scoping and implementation to testing, deployment, and iteration based on product and user feedback. Ensure high code quality through code reviews, technical design discussions, and adherence to engineering best practices. Continuously optimize performance, scalability, and user experience across all product surfaces. Requirements : 3+ years of experience with JavaScript and TypeScript. Strong experience building modern React-based applications. Solid understanding of full-stack development, including client-side performance, state management, and API integrations. Proven track record of owning and shipping user-facing features or products, ideally in payments, fintech, or high-scale transactional environments. Strong communication skills in English (primary working language). Nice to Have: Strong computer science fundamentals with the ability to reason about performance, correctness, and trade-offs. Experience with blockchain technologies, EVM-compatible networks, or onchain payments / DeFi. Background in building SDKs, developer tools, or complex integrations with third-party APIs. Experience in high-scale fintech or consumer products (e.g., trading platforms, wallets, neobanks). Evidence of exceptional achievement in any domain (e.g., open-source contributions, competitive programming, athletics).