Staff iOS Engineer

OpenSea is seeking a Staff iOS Engineer to significantly shape the mobile experience for millions of users discovering and trading digital assets. This role is critical for the next phase of growth, leveraging your expertise to deliver world-class iOS experiences. You will own iOS development end-to-end, covering architecture, feature development, performance optimization, and AI-assisted tooling.

Overview

Department

Engineering

Job type

Full time

Compensation

$180,000 - $270,000 per year

Location

Western Europe

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About OpenSea

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.

Responsibilities

Take a major role in the design & development of the OpenSea iOS app, driving a modern, scalable, and maintainable codebase primarily built with SwiftUI and MVVM architecture

Collaborate closely with product, design, and engineering teams to build seamless, user-friendly mobile experiences for millions of users

Take ownership of features from conception through deployment

Contribute to the architecture and evolution of the mobile codebase, including cross-platform components where applicable

Integrate with GraphQL APIs and implement real-time data updates to deliver dynamic and responsive user interfaces

Advocate for and adopt AI-assisted development tools to accelerate productivity and improve code quality

Help shape the future direction of OpenSea's mobile platform by providing technical leadership and innovative solutions

Desired Experience

Deep expertise in Swift and SwiftUI, with solid understanding of MVVM architecture and modern iOS frameworks

Experience working with Kotlin Multiplatform Mobile (KMP) and enthusiasm for contributing to cross-platform shared code

Solid understanding of developing API-driven mobile apps across REST & GraphQL

Strong systems engineering skills and a generalist mindset to tackle both frontend and backend challenges within mobile development

Hands-on experience with real-time data updates and complex UI interactions

Proven track record of adopting and leveraging AI tools to accelerate development productivity

Comfortable working in a fast-paced, collaborative environment with a focus on shipping polished features

Prior experience in fintech or crypto-related products preferred

High ownership mentality

A Note on Applying

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.

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

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