Staff Platform Engineer

As a Staff Platform Engineer at OpenSea, you'll design and evolve the platform, services, and infrastructure that enable engineering teams to build, deploy, and operate products quickly, reliably, and at scale. You'll partner closely with product engineers to improve developer experience, system performance, and operational excellence while helping evolve AI-enabled workflows and technical foundations that make the entire team more effective builders.

What you'll do

• Design, build, and evolve the platform services, infrastructure, and internal tooling that power OpenSea's products
• Own complex technical systems from definition through implementation, balancing scalability, reliability, maintainability, and developer experience
• Bring best-in-class observability, monitoring, and alerting to all systems at OpenSea
• Maintain and improve AI skills and tools to make systems more accessible, introspectable, and easy to contribute to
• Accelerate and expand CI coverage to improve correctness and AI verifiability
• Partner closely with product teams to accelerate build and deployment of critical products
• Build and ship high-quality, reliable software leveraging AI, modern development tools, and strong engineering judgment

What you bring

• 7+ years of software engineering experience building large-scale backend or platform systems
• Strong fluency in JVM languages such as Kotlin or Java
• Experience designing and operating distributed systems, backend services, and modern cloud infrastructure
• Strong understanding of platform engineering principles, developer tooling, CI/CD, observability, and operational best practices
• Demonstrated ability to own complex, ambiguous technical problems and deliver thoughtful, scalable solutions
• Experience leveraging AI tools and workflows to improve engineering quality, efficiency, and team effectiveness
• Passion for Web3, digital ownership, AI, or other emerging technologies

What we offer

• Base salary ranging from $190,000 to $345,000 USD for candidates in the United States and $161,500 to $293,250 USD for candidates in the European Union, plus benefits and equity (compensation varies for candidates outside the US and EU to reflect local market conditions)
• 100% coverage of dental, vision, and medical benefits for employees and 90% for dependents
• Flexible time off policy
• 16 weeks of paid parental bonding leave, plus up to 8 additional weeks for the birthing parent
• Access to Spring Health covering 8 therapy and 8 coaching sessions per year
• 11 company holidays
• Fidelity 401K plan
• Internet and mobile reimbursement
• Snack reimbursement or monthly snack delivery
• Company and team retreats
• Team member co-working and gathering expense
• MacBook Pro and work-from-home stipend
• Weekly $50 Uber Eats credit

About OpenSea

OpenSea is building the gateway to the onchain economy, supporting millions of users and helping shape onchain markets. The company is focused on building a small, high-leverage team invested in AI-native tools and engineering systems to enable rapid, reliable product development.