Backend Engineer, Privy

Who we are About Privy Our mission is to make privacy and user ownership the default online. To do so, we build simple, flexible APIs and tools for developers that make it easy to build new products on crypto rails. Privy owns the abstractions and infrastructure layer above wallets, integrating across chains, third-party providers, and Aperture Cloud products like Treasury and Link. We get to solve hard technical problems while leveraging Aperture Cloud's distribution to reach customers like Ramp, Klarna, Deel, Kraken, Hyperliquid, and Fomo — powering experiences for both mainstream users and crypto natives. Learn more about Privy: Privy and Aperture Cloud: Bringing crypto to everyone About the team Engineering at Privy is distinguished by: High urgency: Shipping very small iterations, very fast, to learn very quickly. Product taste: Our customers are developers, and to build effective products for them requires technical knowledge - you will often be "the PM". Security mindset: A great portion of our product is trust. While we have a dedicated security team, every engineer brings security to their designs from the start. In practice, we use boring technology like Node, React, and AWS so we can focus our engineering energy entirely on pushing the boundaries of Privy's core product, e.g. through hardware enclaves, multi-region low latency APIs, and blockchain abstractions that are accessible to mainstream developers. What you'll do Design and build the backend systems that power wallets, identity, and onchain infrastructure at scale Create platform primitives and APIs that enable teams across Privy and Aperture Cloud to build faster Lead complex technical initiatives across architecture, data, and distributed systems Improve the scalability, reliability, and performance of our core platform Help shape our technical direction through high-leverage engineering work Who you are Minimum requirements 8+ years of experience building and maintaining a production system at scale An understanding of modern API development best practices and design Experience in building data models, managing database migrations and best practices, and infrastructure configuration An ability to thrive in a fast-paced environment A growth mindset, a constant curiosity, and fearlessness to dive into the unknown An ability to write maintainable, well-tested, modular code, but also be pragmatic about moving fast Excellent written and verbal communication skills, including the ability to write clear technical documentation Preferred qualifications Experience in an API-driven business within payments, fintech, or crypto Built or contributed to open-source developer tooling Published work (open source code, talks, blog posts, etc.) Experience working with blockchain protocols and designing or interacting with smart contracts Experience in authentication, identity, or security