Senior React Developer - M/F

Capco France is looking for a Senior React Developer to support players in the financial sectors in the development and evolution of modern, high-performance, and accessible web applications.

Within our Technology, Product & Engineering Practice, you will work on frontend development issues, application architecture, and user experience, in close collaboration with multidisciplinary teams comprising developers, UX/UI Designers, Product Owners, and technical experts spread across several countries.

You will contribute to the design of robust, reusable, and maintainable solutions, with particular attention paid to web accessibility, code quality, and development best practices.

Your missions:

• Design, develop, and maintain modern web applications with React 19 and TypeScript 7, prioritizing scalable, high-performance, and maintainable frontend architectures.
• Contribute to architectural choices and the evolution of an internal component library based on React Aria, ensuring their reusability and consistency.
• Place web accessibility at the heart of development, applying standards and best practices from design through to testing and code reviews.
• Collaborate with UX/UI teams to integrate Figma mockups, develop interfaces, and ensure interactions with backend Java APIs.
• Guarantee the quality of developments through unit, integration, and end-to-end tests, code reviews, and contribution to CI/CD processes, in collaboration with DevOps teams.

Your profile:

• Proven experience in frontend development with React, TypeScript 6 or 7 and JavaScript, as well as a good understanding of component architectures, state management, and complex web applications.
• Expertise in designing reusable and accessible UI components, with a strong mastery of web accessibility standards, notably semantic HTML, keyboard navigation, and ARIA.
• Experience with frontend automated testing practices, combined with a particular attention to code quality, web performance, and maintainability.
• Ability to contribute to architectural discussions, collaborate with multiple development teams, and thrive in an international Agile environment.
• You are comfortable working in English (C1 level) in an international professional environment.

Additional assets:

• Experience with React Router, TanStack Query, and React Aria technologies, particularly in the development of component libraries.
• Good mastery of Vitest and Playwright testing tools, as well as automated testing practices.
• Experience with AWS environments, GitLab CI/CD, and interactions with Java APIs.
• Knowledge of Specification-Driven Development (SDD) approaches and associated software engineering practices.
• Familiarity with generative AI-assisted development tools.

Why join Capco?

Capco is an international consulting firm specializing in financial services. Founded in 1998, the firm now has more than 7,000 employees in 36 offices worldwide, including 160 in Paris.

A recognized challenger to the big names in consulting, Capco distinguishes itself through its dual business and technological expertise, serving both strategy and execution.

Our promise: to support our clients' transformation in a world of constant regulatory, technological, and operational change.

We operate at the intersection of business, regulation, and tech, mobilizing multidisciplinary, experienced, and committed teams.

Our distinctive markers:

• Strong sectoral specialization

We provide our clients with a deep understanding of their business challenges, particularly in banking, capital markets, and energy.

• A collaborative and tailored approach

We integrate with client teams, adapt our methods to their culture, and co-construct concrete and operational solutions.

• Excellence as a requirement

Our ambition is to achieve measurable and lasting results for our clients and to always aim for added value.

• A "One Capco" spirit

Our teams collaborate on an international scale to mobilize the best expertise and share best practices.

• An entrepreneurial and inclusive culture

Innovation, initiative, and merit are at the heart of our model. We value ideas, diversity, and collective progress.

Our expertise is organized around 6 complementary business areas

1. Strategy & Transformation
2. Finance, Risk & Compliance
3. Product, Innovation & Design
4. Data & Analytics
5. Tech Advisory
6. Engineering (Delivery)

At Capco, we offer you:

• An international working environment centered on innovation and creating value for our banking and insurance clients
• A continuous training path adapted to your needs, to acquire new skills and develop real expertise
• A hybrid working organization (teleworking policy of 2 days per week)
• Competitive compensation with a performance-related bonus
• A PEE with a company match of €2903 per year
• An entrepreneurial, inclusive, and meritocratic corporate culture, newly certified Great Place To Work
• Initiatives to build the Capco of tomorrow:
• #BeYourselfAtWork
• Woman@capco
• CSR (sustainable mobility package, solidarity day, etc.)
• Business, sports, and cultural communities

At Capco Paris, whether a visible or invisible disability, an atypical or classic background, all applications are welcome and will be treated with equity.