Staff Backend Engineer Jobs

OpenSea

Location:
United States

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

190000.00 - 345000.00 USD / Year

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Job Description:

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.

Job Responsibility:

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 fluency and opinionated in database choice and schema design for highly performant and scalable applications
Intrinsic interest in leveraging new tools (e.g. AI) to increase work efficiency and quality
Passion for (blockchain) technology, NFTs, and the potential of digital ownership is a huge plus

Nice to have:

Passion for (blockchain) technology, NFTs, and the potential of digital ownership is a huge plus

What we offer:

Health Benefits: We cover 100% Dental/Vision/Medical for employees and 90% for dependents
Flexible Time Off Policy
Parental Leave: 16 Weeks of Paid Parental Bonding & up to 8 additional weeks for the birthing parent
Mental Health: We offer access to Spring Health, covering 8 therapy & 8 coaching sessions per year
11 Company Holidays
Fidelity 401K Plan
Internet/Mobile Reimbursement Plan
Reimbursement or Monthly Snack Delivery
Company & Team retreats to get together for fun and collaboration
Team Member Co-Working and Gathering Expense
MacBook Pro & WFH Stipend to make sure you are set up for success
Weekly $50 Uber Eats credit

Additional Information:

Job Posted:
December 11, 2025

Employment Type:

Fulltime

Work Type:

Remote work

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Staff Backend Engineer