Senior Consultant - React Native

London

Senior Consultant - React Native

Role – Senior Consultant - React Native DeveloperLocation – Knutsford UK

Get The Future You Want!

Choosing Capgemini means choosing a company where you will be empowered to shape your career in the way you’d like, where you’ll be supported and inspired by a collaborative community of colleagues around the world, and where you’ll be able to reimagine what’s possible. Join us and help the world’s leading organizations unlock the value of technology and build a more sustainable, more inclusive world

Key Responsibilities* Develop and maintain web and mobile applications using React and React Native

Implement and optimise component lifecycle methods and React hooks for performance and maintainability

Manage application state using appropriate strategies eg Context API Redux Zustand

Apply React design patterns to ensure clean reusable and scalable code

Integrate TypeScript for type safety and improved developer experience

Ensure code quality through linting tools eg ESLint Prettier and enforce consistent coding standards

Write and maintain unit integration and endtoend tests using libraries such as Jest React Testing Library Detox or Cypress

Follow security best practices to protect user data and prevent vulnerabilities

Implement accessibility standards WCAG to ensure inclusive user experiences

Monitor and resolve performance issues using profiling tools and optimisation techniques

Contribute to CICD pipelines and automated testing strategies for continuous delivery

Collaborate on publishing and maintaining shared React libraries and components

Stay up to date with the latest versions of React and React Native including experience upgrading across major releases

Required Skill

Strong proficiency in React and React Native development

Deep understanding of React component lifecycle and hooks

Solid experience with TypeScript in React projects

Familiarity with state management libraries and patterns

Knowledge of common React design patterns eg container presentational HOCs render props

Experience with linting tools and enforcing code quality

Proven testing experience with modern JavaScript testing frameworks

Awareness of security and accessibility best practices

Experience with performance profiling and optimisation in React apps

Handson experience with CICD tools and workflows

Experience publishing and maintaining shared libraries eg npm packages monorepos

Experience upgrading React and React Native applications across versions

About Capgemini

Capgemini is a global business and technology transformation partner, helping organizations to accelerate their dual transition to a digital and sustainable world while creating tangible impact for enterprises and society. It is a responsible and diverse group of 350,000 team members in more than 50 countries. With its strong over 55-year heritage, Capgemini is trusted by its clients to unlock the value of technology to address the entire breadth of their business needs. It delivers end-to-end services and solutions leveraging strengths from strategy and design to engineering, all fuelled by its market-leading capabilities in AI, cloud, and data, combined with its deep industry expertise and partner ecosystem. The Group reported 2023 global revenues of €22.5 billion.

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358503-en_GB

Posted on

12 Nov 2025

Experience level

Experienced Professionals

Contract type

Permanent

Location

London

Business unit

FS

Brand

Capgemini

Professional communities

Software Engineering