Senior Mobile Engineer
Full-time · Retail & Consumer Products
This is an opportunity to join a high-traffic consumer product used by millions of people every month, where mobile is a core part of the experience rather than an afterthought.
You’ll be joining an established engineering function with 25+ engineers in the UK (50+ globally), working on iOS and Android apps that see millions of active users and real-world impact every single day.
The mission is simple but ambitious: build a mobile app that users genuinely trust, return to daily, and rely on to make better purchasing decisions. You’ll play a key role in shaping how that experience looks, feels and evolves.
This role suits someone who cares deeply about product quality, enjoys ownership, and wants to work on a mature app where engineering standards matter.
What you’ll be doing
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Owning the development of production iOS and Android apps built with React Native
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Working closely with product managers, designers and fellow engineers to turn ideas into polished, user-loved features
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Building high-quality, delightful mobile experiences, including animations and micro-interactions
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Taking responsibility for code quality, testing and release readiness
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Improving and maintaining a robust CI/CD pipeline and strong engineering standards
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Helping the wider team move faster by unblocking problems and raising the technical bar
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Keeping up with modern mobile tooling and best practices, and applying them pragmatically
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Providing technical guidance and mentorship to other engineers
What they’re looking for
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5+ years of commercial React Native experience
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Expert-level TypeScript / JavaScript
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Strong understanding of the React Native ecosystem, performance, builds and native integrations
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Proven ability to translate designs into pixel-perfect, smooth user experiences
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Experience with modern tooling such as Expo, CI/CD pipelines, monorepos and cloud infrastructure
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Solid understanding of how frontend, backend and networks interact
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Comfortable taking technical ownership and influencing standards
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Clear communicator with a delivery-focused mindset
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Experience using modern developer tools (including AI/LLM tooling) is a bonus, not a requirement
Working environment
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Hybrid working with flexibility — no expectation to be in the office every day
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Modern, well-located London office with great food, coffee and social spots nearby
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Collaborative, inclusive culture that values balance as much as delivery
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Real autonomy and trust — you’ll be treated like a senior, not micromanaged
Benefits
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Competitive salary
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Generous pension with employer contributions up to 8%
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Private medical insurance
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Subsidised gym membership
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Employee Assistance Programme
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Free lunch when you’re in the office
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Dedicated weekly time for personal development
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Enhanced parental leave and strong support for returning parents
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Paid volunteering time plus donation matching
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Regular social events and company-wide recognition programmes
Why this role is interesting
This is a chance to work on a scaled consumer app with meaningful usage, solid engineering foundations, and room to improve and modernise. You’ll have influence, visibility, and the ability to see the impact of your work quickly — without the chaos of a tiny startup or the inertia of a giant enterprise.
