almost 2 years ago
Base Salary
$155k - $300k/yr
Responsibilities
- Design and scale SDK software that powers Checkout across web2 and web3 environments.
- Build scalable, high-performance software spanning frontend and backend systems.
- Collaborate with protocol, backend, and business teams on complex technical challenges.
- Develop tools and infrastructure that support globally scalable on-chain payments.
- Contribute to product design and user interactions with attention to detail, accessibility, security, and efficiency.
Requirements
- 3+ years of engineering experience with JavaScript, TypeScript, and modern frameworks.
- Strong understanding of full-stack development, including React and backend APIs.
- Demonstrated ability to build scalable, high-performance software.
- Attention to detail in product design and user interaction.
- Blockchain technology and EVM-compatible network familiarity is a plus.
- Experience with payments, SDKs, crypto-related systems, open-source projects, or developer tools is advantageous.
- Experience shipping products from 0 to 1 and working effectively in ownership-heavy environments is preferred.
Benefits
- Primarily in-person work at the Midtown, NYC headquarters Monday through Thursday, with optional work-from-home Fridays.
- Opportunity to shape the future of payments and programmable money.
- Mission-driven environment focused on access, openness, and trust.
- Collaborative work with protocols, builders, and financial infrastructure providers.
Tech Stack
Categories
Product Engineering
About 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.