Crypto Payments SDK Engineer: Seamless On‑Chain UX

Fun; Singapore; On-site; SGD 90,000 - 170,000; Full time

Job summary

Fun is seeking a talented Product Engineer (Mid, Senior, Staff) to design and scale SDK software powering Checkout across web2 and web3, working across the stack with a focus on performance, reliability, and UX.

You will collaborate with protocol, backend, and business teams to solve complex challenges and ship globally; crypto experience is a plus, but fast learners from any technical background are welcome.

Qualifications

• 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.

Responsibilities

• Design and scale SDK software powering Checkout across web2 and web3 environments.
• Collaborate with protocol, backend, and business teams to solve complex challenges.
• Build tools that scale globally to meet the evolving demands of on-chain payments.
• Ship software with a focus on performance, reliability, and UX.

Skills

JavaScript

TypeScript

React

Full-stack development

Job description

Fun is seeking a talented Product Engineer (Mid, Senior, Staff) to design and scale SDK software powering Checkout across web2 and web3, working across the stack with a focus on performance, reliability, and UX.

You will collaborate with protocol, backend, and business teams to solve complex challenges and ship globally; crypto experience is a plus, but fast learners from any technical background are welcome.