Staff Frontend Engineer - Mobile — OP, United States

OP is partnering with a fast-growing iGaming startup to hire talented individuals to build the next generation of sweepstakes-based gaming experiences. Operating at the intersection of gaming, technology, and user engagement, the platform enables seamless cross-game interactions powered by innovative mechanics. With plans to rapidly scale this year, the team is seeking builders who thrive in fast-paced environments where ideas move from concept to live product in weeks.

What You ll Own?

• Develop scalable, high-performance experiences for iOS and Android, including APIs, authentication, payments, and real-time services.

• Architect and build production mobile applications from the ground up using React Native, owning the technical direction from initial architecture through launch.

• Build reusable components, design systems, and frontend architecture that support rapid product growth and high traffic.

• Develop web experiences using React and Next.js while collaborating with product, design, backend, and creative teams.

• Integrate animations, interactive assets, and AI-assisted workflows using tools such as Claude, Cursor, MCP, and structured Figma systems.

What We re Looking For?

• 8+ years of senior-level frontend engineering experience with proven experience building and launching React Native applications from the ground up.

• Strong production experience with React Native, iOS and Android development, and scalable mobile architecture.

• Strong proficiency with React and Next.js, including frontend architecture, state management, API integration, performance, and scalability.

• Experience translating Figma designs and creative assets into polished production experiences, with a strong understanding of UX and visual quality.

• Experience with AI-assisted development tools such as Claude, Cursor, or MCP, with the ability to work autonomously in a fast-paced startup environment.

Bonus Points

• History of building production mobile applications from scratch using React Native, taking ownership from initial architecture through launch.

• Experience launching applications through the Apple App Store or Google Play.

• Experience with Figma MCP, design tokens, or AI-assisted frontend workflows.

• Experience with Rive, Lottie, animations, particle systems, or interactive UI.

• Background in gaming, iGaming, or other highly interactive consumer products.

• Experience building automated asset pipelines, design systems, or reusable component libraries.

Why Join?

• Opportunity to work on a live, scaling product.

• High-growth environment with strong career progression.

• Fully remote with flexible work culture.

• Collaborative, innovation-driven team with direct leadership exposure.

Benefits

• 100% medical, dental & vision coverage (partial for dependents).

• 401(k) employer match.

• Annual performance bonus: 10% -15%.