---
title: 'Staff Software Engineer - Platform at OpenSea'
canonical: 'https://feeny.ai/job/staff-software-engineer-platform-opensea-united-states-europe-kkr2m3wr33jq'
type: 'job'
last_seen: '2026-09-16'
---

# Staff Software Engineer - Platform at OpenSea

- **Company:** OpenSea
- **Location:** United States / Europe
- **Employment:** full-time
- **Work type:** remote
- **Posted:** 2026-08-12
- **Last confirmed live:** 2026-09-16
- **Apply:** https://jobs.ashbyhq.com/opensea/8c242715-3ea6-47e9-8a9c-9972b57683a7

## Job description

OpenSea is building the gateway to the onchain economy - a rich world of communities, assets & creative expression uniquely possible with native digital ownership. Our products support millions of users and have helped shape onchain markets that exist today—and we're just getting started.

Our goal is to build the highest-leverage, most AI-native team in crypto (and ideally beyond.) We believe that a small team (broken into even smaller teams with extreme ownership) can accomplish enormous results with the right people, the right tools, and the right company-wide investments in AI. We are building that team. We're looking for a highly skilled, curious, and self-driven Staff Platform Engineer to help build the technical foundations that power OpenSea. In this role, you'll design and evolve the platform, services, and infrastructure that enable our 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 the AI-enabled workflows, engineering systems, and technical foundations that make our entire team more effective builders.

## Responsibilities

In the age of AI, Platform teams have two main roles - architect, build, and maintain critical systems, and enable the rest of the team to work safely and productively across your areas of ownership. Our goal is to make the systems protect themselves and enable everyone to build quickly.

- 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

## Requirements

- 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

The base salary for this full-time position, spanning multiple internal levels depending on qualifications, ranges from $190,000 to $345,000 USD for candidates based in the United States and $161,500 to $293,250 USD for candidates based in the European Union, plus benefits & equity. Compensation for candidates based outside of the US and EU will vary to reflect local market conditions.

If you don't think you meet all of the criteria above but still are interested in the job, please apply. Nobody checks every box, and we're looking for someone who is excited to join the team.

#LI-Remote

## Benefits & Perks

🏥 Health Benefits: We cover 100% Dental/Vision/Medical for employees and 90% for dependents 🌴 Flexible Time Off Policy: Our flexible time off policy is aimed at letting our employees take as much time off as they'd like to refresh so long as it doesn't interfere with their ability to meet their goals and contribute effectively to company velocity 👶 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

By clicking submit an application below, you consent to our use and processing of your data as described in our [Candidate Privacy Notice](https://drive.google.com/file/d/15nIEoZyf5MDRN8ViRkBib-3t81-WbqFF/preview).

Please be aware that OpenSea participates in E-Verify to confirm employment eligibility.

## About OpenSea

## Company Overview
- **One-liner**: OpenSea is the largest marketplace for non-fungible tokens (NFTs) and a platform for trading tokens and perpetual futures, building the destination for the onchain economy.
- **Entity Type**: Private (Venture Capital-Backed) – Series C stage
- **Headquarters**: New York, NY, USA (office also in Miami, FL)
- **Founded**: 2017
- **Founders**: Devin Finzer and Alex Atallah

## Core Business
- **Primary industry**: Financial Software (blockchain, cryptocurrency, NFT marketplace)
- **Target customers**: B2C collectors, traders, artists, gamers; B2B developers integrating with their API and MCP server; Enterprise partners for tokenization and AI agent tools
- **Mission or purpose statement**: “To make onchain participation as simple and intuitive as using the internet itself” – powering an open, borderless marketplace for all onchain assets.

## Products & Services
- **NFT Marketplace**: Buy, sell, and discover NFTs across multiple blockchains (Ethereum, Polygon, Base, Arbitrum, etc.) – includes trending collections, top tokens, drops.
- **Token Trading (Swap)**: Exchange ERC-20 tokens and meme coins directly on OpenSea.
- **Perpetual Futures**: Trade perpetual futures contracts on supported assets.
- **AI Agent Tools (ERC-8257)**: Build, register, and discover AI agent tools onchain; developers can gate tools using the OpenSea Tool SDK.
- **Developer Tools**: REST API (v2), MCP Server, CLI (`@opensea/cli`), JavaScript SDK (`@opensea/sdk`), and an OpenAPI specification for AI assistants.
- **Educational Resources**: Learn Center (guides on NFTs, wallets, Web3) and Help Center.

## Market Standing
- **Valuation/Market Cap**: Not publicly available (latest reported secondary transaction in Apr 2024; peak valuation was $13.3B in Jan 2022 per earlier reports – conflicting data)
- **Key Metric**: Total funding $423M (as of PitchBook 2026 profile)
- **Notable Investors/Partners**: 89 investors including a16z, Paradigm, Coatue, Animoca Ventures, and many others. Portfolio company of Y Combinator (2018 batch).
- **Growth Signals**: 757 employees (PitchBook 2026); expanded from NFTs to token swapping and perpetual futures; launched developer tools and AI agent standard ERC-8257; multi-chain support.

## Competitive Advantages
- **Network effects**: Largest NFT marketplace by volume and user base, with deep liquidity across collections.
- **Brand trust**: Early mover (2017) with established reputation; now expanding into broader token trading.
- **Developer ecosystem**: Free API key (instant, no signup), MCP server, and SDKs lower the barrier for integration.
- **Standard-setting**: Pioneered ERC-8257 for AI agent tools, creating a new asset class.

## Strategic Focus
- **Beyond NFTs**: Becoming a universal onchain marketplace for tokens, perpetuals, and digital assets.
- **Developer and AI integration**: Growing the platform as a programmable layer for agents and builders.
- **Multi-chain expansion**: Supporting Ethereum, Polygon, Base, Arbitrum, and more.
- **User experience**: Making onchain trading as simple as using the internet.

## Why Work Here
- **Culture**: Described as building “the destination for the onchain economy” with a mission-driven, deeply human approach. Fully remote workspace (company is remote-first, with offices in Miami and New York).
- **Perks**: Generous PTO, paid holidays, sick days; healthcare benefits (dental, FSA, health insurance); parental leave; equity; commuter benefits; free snacks/drinks in office.
- **Tech stack**: AWS, Python, TypeScript, Rust, Solidity, Django, Next.js, GraphQL, PostgreSQL, Elasticsearch, Redis, Terraform, Figma, and Web3 tools.
- **Engineering culture**: Focus on blockchain, smart contracts, scalable backend infrastructure; opportunities to work on cutting-edge token standards and AI agent integrations.

## Sources
1. [opensea.io](https://opensea.io/)
2. [opensea.io/careers](https://opensea.io/careers)
3. [jobs.ashbyhq.com](https://jobs.ashbyhq.com/OpenSea)
4. [builtin.com](https://builtin.com/company/opensea)
5. [pitchbook.com](https://pitchbook.com/profiles/company/226883-35)

## Other roles at OpenSea

- [Staff Product Designer](https://feeny.ai/job/staff-product-designer-opensea-united-states-europe-m9wj65p53pqx) — United States / Europe