Staff Platform Engineer
OpenSea helps users buy, sell, and create NFTs through a decentralized marketplace supporting multiple blockchains.
Maintainer signals as of 8/12/2026
Funding history
Projects
About OpenSea
OpenSea provides a platform for trading non-fungible tokens across multiple blockchains. Users can discover, create, buy, and sell NFTs through peer-to-peer transactions secured by smart contracts. The marketplace supports multiple blockchains and features gas-free minting options.
Skills
Candidate Availability
Required and preferred rules are kept separate and reflect the wording in the original posting.
About the Role
You will design, build, and evolve platform services, infrastructure, and internal tooling that enable reliable product development at scale. You will own complex technical systems, improve observability and CI coverage, maintain AI-enabled engineering tools, partner with product teams, and ship reliable software using modern development tools.
Requirements
- 7+ years of software engineering experience building large-scale backend or platform systems
- Fluency in JVM languages such as Kotlin or Java
- Experience designing and operating distributed systems
- Experience with backend services and modern cloud infrastructure
- Understanding of platform engineering principles
- Understanding of developer tooling and CI/CD
- Understanding of observability and operational best practices
- Ability to own complex and ambiguous technical problems
- Ability to make independent technical decisions balancing reliability, scalability, performance, and maintainability
- Experience leveraging AI tools and workflows for engineering
- Passion for Web3, digital ownership, AI, or emerging technologies
Responsibilities
- Design, build, and evolve platform services, infrastructure, and internal tooling
- Own complex technical systems from definition through implementation
- Improve scalability, reliability, maintainability, and developer experience
- Provide observability, monitoring, and alerting across systems
- Maintain and improve AI skills and tools
- Accelerate and expand CI coverage
- Partner with product teams to accelerate product builds and deployments
- Build and ship reliable software using AI and modern development tools
Benefits
- 100% dental, vision, and medical coverage for employees
- 90% dental, vision, and medical coverage for dependents
- Flexible time off policy
- 16 weeks of paid parental bonding leave
- Up to 8 additional weeks of leave for the birthing parent
- Spring Health access with 8 therapy and 8 coaching sessions per year
- 11 company holidays
- Fidelity 401K plan
- Internet and mobile reimbursement plan
- Reimbursement or monthly snack delivery
- Company and team retreats
- Team member co-working and gathering expense
- MacBook Pro
- Work-from-home stipend
- Weekly $50 Uber Eats credit
