Staff Platform Engineer - AI-Native & Remote

OpenSea; Union (NJ); On-site; USD 190,000 - 345,000; Full time

Benefits offered by this job

Health Benefits: We cover 100% Dental/

Flexible Time Off Policy: Our flexible

Parental Leave: 16 Weeks of Paid Par

Mental Health: We offer access to

11 Company Holidays

Fidelity 401K Plan

Internet/Mobile Reimbursement Plan

Reimbursement or Monthly Snack Deliver

Company & Team retreats to get togeth

Team Member Co-Working and Gathering E

MacBook Pro & WFH Stipend to make sure

Weekly $50 Uber Eats credit

Job summary

OpenSea, a leading NFT marketplace, seeks a Staff Platform Engineer to design and evolve the platform, services, and infrastructure that power its products at scale. You will partner with product engineers to improve developer experience, system performance, and operational excellence.

You will own complex backend systems, drive observability, CI/CD, and AI-enabled workflows, and mentor teams while advancing a secure, reliable foundation for a rapidly growing crypto-native platform.

Qualifications

• 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.
• Excitement for making independent technical decisions balancing reliability, scalability, performance, and long-term maintainability.
• Experience leveraging AI tools and workflows to improve engineering quality, efficiency, and team effectiveness.
• Passion for Web3, digital ownership, AI, or other emerging technologies.

Responsibilities

• 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 of the systems at OpenSea.
• Maintain and improve AI skills & tools to make our 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 & deployment of critical products (where your agents can't yet!).
• Build and ship high-quality, reliable software leveraging AI, modern development tools, and strong engineering judgment.

Skills

Kotlin

Java

Distributed systems

Platform engineering

Observability

CI/CD

AI tools

Web3

Job description

OpenSea, a leading NFT marketplace, seeks a Staff Platform Engineer to design and evolve the platform, services, and infrastructure that power its products at scale. You will partner with product engineers to improve developer experience, system performance, and operational excellence.

You will own complex backend systems, drive observability, CI/CD, and AI-enabled workflows, and mentor teams while advancing a secure, reliable foundation for a rapidly growing crypto-native platform.