Product Engineer

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2h ago

At Fun.xyz, we believe a tokenized future is a beneficial inevitability, granting financial emancipation to everyone with an internet connection. For a blockchain-first global economy to exist, value exchange must become intuitive, secure, and seamless.

Enter Checkout - the highest converting payment solution in web3. By integrating Checkout, dApps enable users to complete any on-chain action using crypto from a wallet, centralized exchange, or on-ramped fiat from a card or bank account. With access to market-leading routing and their asset portfolio at the point of sale, users are faster, stickier, and more engaged. For dApps, Checkout scales their user acquisition potential without launching new chains or integrating multiple third party providers.

We built Checkout because we envision a world where anyone, anywhere, can purchase anything with any asset. If that sounds like a vision you can get behind, we want to hear from you.

About The Role
We're looking for a talented Product Engineer (Mid, Senior, Staff) to join our team and help shape the future of crypto payments. In this role, you'll design and scale SDK software that powers Checkout across web2 and web3 environments, working across the stack on systems that balance performance, reliability, and UX. You'll collaborate closely with protocol, backend, and business teams to solve complex challenges and build tools that scale globally to meet the evolving demands of on-chain payments. Crypto experience is a plus, but fast learners from any technical background are welcome.

Requirements

3+ years of engineering experience with JavaScript, TypeScript, and modern frameworks

Strong understanding of full-stack development, including React and backend APIs

Attention to detail in both product design and user interaction

Proven track record building scalable, high-performance software

Nice to Have

Familiarity with blockchain technologies and EVM-compatible networks

Comfortable solving difficult technical problems in agile environments

Experience working on payments, SDKs, or crypto-related systems

Passion for building secure, efficient, and accessible tools

What Sets You Apart

You've contributed to open-source projects or built SDKs/dev tools

You have shipped products from 0 to 1 in a fast-paced setting

You thrive in ownership-heavy environments and pride yourself on execution

You approach problem-solving with thoughtfulness, precision, and rigor

Why Join Us

Shape the future of payments and programmable money

Work with bleeding-edge tech in a domain where innovation moves fast

Join a mission-driven team focused on access, openness, and trust

Be a key contributor, not just a cog—your work will ship fast and matter

Collaborate with top-tier protocols, builders, and financial infrastructure providers

Location and Work Environment This role is primarily in-person at our Midtown, NYC headquarters. We work together Monday through Thursday for fast, iterative collaboration and optional WFH Fridays to reset and recharge.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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Fun

Compensation: $88k - $112k estimated

Location: NY New York US

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