Staff Backend Engineer

OpenSea is the gateway to web3’s next chapter—where NFTs, fungible tokens, and emerging digital assets converge to create open, user-owned economies. As a foundational player in the crypto space, we’re building infrastructure that supports millions of users and sets new standards for how people discover and exchange digital value.

Our team is small but mighty: hands-on, fast-moving, and deeply committed to shipping meaningful work. We're remote-first by design, AI-empowered by default, and guided by values that prioritize ownership, trust, and progress. At OpenSea, you’ll be challenged to grow fast while being supported by a talent-dense team shaping the future of crypto.

We're looking for an ambitious, detail-oriented Staff Backend Engineer with an enthusiasm for building and scaling feature-rich, well-tested, and polished applications with modern technologies. This individual will spearhead core features of the OpenSea 2.0 backend.

Responsibilities

- Form, communicate, and execute on a technical vision for the next generation of OpenSea’s architecture that leverages highly scalable and event-driven patterns

- Write reliable, low latency marketplace infrastructure software that will eventually process billions of dollars a day worth of transaction volume, including highly performant blockchain indexing systems, order management systems at scale, and REST & Websocket API endpoints

- Raise the bar for internal understanding of best practices in building highly performant & event-driven systems with “live” characteristics

- Mentor and train other team members and act as an internal thought leader and agitator for architectural rigor and cleanliness

Requirements

- At least 6 years of experience as a software engineer

- Strong fluency in event-driven system design patterns, leveraging technologies such as Kafka, Flink, and Debezium, as well as distributed systems more generally

- Strong fluency in JVM languages like Kotlin or Java

- Strong fluen...