Backend Engineer

Iampro; San Francisco (CA); On-site; USD 140,000 - 180,000; Full time

Job summary

Fun is building the backend infrastructure for web3 payments, focusing on scalable, low-latency services that handle asset conversion, identity verification, and secure routing across multiple payment providers. This role offers opportunity to impact architecture and performance at scale.

You will join the Payments Infrastructure team at a pivotal time as we expand globally, requiring robust systems and thoughtful design to meet complex use cases while maintaining compliance.

Responsibilities

• Architect backend services powering payments infrastructure across chains and providers.
• Ensure fault tolerance, scalability, and compliance for a global user base.

Job description

Capital markets are undergoing a fundamental shift. Assets that live in fragmented systems and manual workflows are moving onto blockchains -systems designed to move and store value more transparently and efficiently.

While this unlocks more open and programmable financial systems, it also introduces significant complexity. For most users, interacting with this new infrastructure is still too difficult.

Fun builds the infrastructure that powers consumer-facing fintech applications - handling onboarding, account access, and money movement so users can interact with blockchain-based systems as seamlessly as they do with traditional finance.

For fintech builders, Fun provides a best-in-class onboarding and deposit stack that drives conversion and unlocks user growth. We operate at the intersection of financial infrastructure, complex engineering, and product experience.

About the Role

We’re looking for a BackEnd Engineer to join our growing team at Fun and help architect the backend services that power our web3 payments infrastructure. This role is foundational to the success of our platform and will shape how payments, settlement, and transaction routing are handled across chains and payment providers. You’ll be working on high-performance, low-latency systems that support complex use cases like asset conversion, identity and security verification, transaction finality, and decentralized routing—while ensuring fault tolerance, scalability, and compliance across a global user base.

Team: Payments Infrastructure – Mid, Senior, Staff, or Principal Levels