Staff Engineer – Frontend & Mobile (React/React Native)

Company: Flagstone
Apply for the Staff Engineer – Frontend & Mobile (React/React Native)
Location: London
Job Description:

Flagstone is seeking a Staff Engineer focused on frontend and mobile to set technical strategy across a small tribe of squads, driving high-quality React and React Native systems and influencing architecture. You will mentor engineers, shape our design system, and partner with Product to deliver scalable, secure solutions.

Join a culture that blends collaboration with high performance, enabling experimentation, and continued growth.

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Posted: August 9th, 2026