Senior React Native 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:

Owning the development of production iOS and Android apps built with React Native

Working closely with product managers, designers and fellow engineers to turn ideas into polished, user-loved features

Building high-quality, delightful mobile experiences, including animations and micro-interactions

Taking responsibility for code quality, testing and release readiness

Improving and maintaining a robust CI/CD pipeline and strong engineering standards

Helping the wider team move faster by unblocking problems and raising the technical bar

Keeping up with modern mobile tooling and best practices, and applying them pragmatically

Providing technical guidance and mentorship to other engineers

What they're looking for:

5+ years of commercial React Native experience

Expert-level TypeScript / JavaScript

Strong understanding of the React Native ecosystem, performance, builds and native integrations

Proven ability to translate designs into pixel-perfect, smooth user experiences

Experience with modern tooling such as Expo, CI/CD pipelines, monorepos and cloud infrastructure

Solid understanding of how frontend, backend and networks interact

Comfortable taking technical ownership and influencing standards

Clear communicator with a delivery-focused mindset

Experience using modern developer tools (including AI/LLM tooling) is a bonus, not a requirement

Working environment:

Hybrid working with flexibility — no expectation to be in the office every day

Modern, well-located London office with great food, coffee and social spots nearby

Collaborative, inclusive culture that values balance as much as delivery

Real autonomy and trust — you'll be treated like a senior, not micromanaged

Benefits:

Competitive salary

Generous pension with employer contributions up to 8%

Private medical insurance

Subsidised gym membership

Employee Assistance Programme

Free lunch when you're in the office

Dedicated weekly time for personal development

Enhanced parental leave and strong support for returning parents

Paid volunteering time plus donation matching

Regular social events and company-wide recognition programmes

Job Details

Company
Gravitas Recruitment Group (Global) Ltd
Location
Slough, Berkshire, UK
Hybrid / Remote Options
Employment Type
Full-time
Posted