Staff Backend Engineer at OpenSea

We are OpenSea, the gateway to web3’s next chapter where NFTs, fungible tokens, and emerging digital assets come together to power open, user-owned economies. As a foundational player in the crypto space, we build infrastructure that supports millions of users and sets new standards for discovering and exchanging digital value. Our small but mighty team is remote-first, AI-empowered, and guided by values that emphasize ownership, trust, and progress. We are looking for a Staff Backend Engineer to join us on a full-time, remote basis and help shape the next generation of our platform.

Responsibilities

• Form, communicate, and execute a technical vision for OpenSea’s next-generation architecture that relies on highly scalable, event-driven patterns.
• Write reliable, low-latency marketplace infrastructure that will eventually process billions of dollars in daily transaction volume, including performant blockchain indexing systems, large-scale order management, and REST and WebSocket API endpoints.
• Mentor teammates, raise the bar for architectural rigor, and act as an internal thought leader for building highly performant, event-driven systems.

Requirements

• At least six years of professional software engineering experience.
• Strong fluency in event-driven system design patterns and distributed systems, with hands-on experience using Kafka, Flink, and Debezium.
• Strong fluency in JVM languages such as Kotlin or Java.
• Strong fluency and clear opinions on database selection and schema design for high-performance, scalable applications.
• Intrinsic interest in using new tools, including AI, to improve work efficiency and quality.
• Passion for blockchain technology, NFTs, and digital ownership is a plus.

What we offer

The base salary for this full-time position in the United States ranges from $190,000 to $345,000, plus benefits and equity. Compensation for internationally based candidates will vary to reflect local market conditions.

• Medical, dental, and vision insurance with 100% coverage for employees and 90% for dependents.
• Flexible time off policy that lets you take the time you need as long as goals and team velocity are maintained.
• 16 weeks of paid parental bonding leave, plus up to 8 additional weeks for the birthing parent.
• Access to Spring Health for 8 therapy sessions and 8 coaching sessions per year.
• 11 company holidays each year.
• Fidelity 401k plan.
• Internet and mobile reimbursement plan.
• Reimbursement or monthly snack delivery.
• Company and team retreats for collaboration and fun.
• Co-working and team gathering expense coverage.
• MacBook Pro and home office stipend.
• Weekly $50 Uber Eats credit.