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Senior Frontend Engineer - React JS

Capgemini
Philadelphia, United Statesfull_timeVerifiedPosted 26 Jul 2025

About the role

Senior Frontend Engineer - React JS-080893

Description

 

About the job you’re considering

Senior Frontend Engineer 
We are seeking a highly skilled Senior Frontend Engineer with deep expertise in React.js and modern frontend architecture to lead the design and implementation of scalable, high-performance web applications. This role combines hands-on engineering with technical leadership, driving innovation and excellence across the frontend stack.

Your role

•    Architect and implement modular, scalable, and high-performance frontend solutions using JavaScript/TypeScript, React, and Next.js.
•    Design composable user experiences integrated with headless CMS, digital asset management (DAM) systems, and real-time personalization engines.
•    Lead initiatives to optimize Core Web Vitals, SEO, and WCAG 2.2+ accessibility compliance.
•    Drive observability through custom SDKs and performance monitoring tools.
•    Establish high-velocity engineering workflows using monorepos (e.g., Nx, TurboRepo), CI/CD automation, and AI-powered developer tools (e.g., GitHub Copilot, Cody).
•    Integrate secure, scalable APIs (GraphQL, REST, OAuth) and deliver edge-optimized experiences via Akamai EdgeWorkers and advanced caching strategies.

Your skills and experience

•    7+ years of experience in frontend development with a strong focus on React.js and modern JavaScript/TypeScript.
•    Proven experience designing and leading frontend architecture for large-scale applications.
•    Deep understanding of performance optimization, accessibility standards, and SEO best practices.
•    Hands-on experience with monorepo management, CI/CD pipelines, and developer productivity tooling.
•    Strong knowledge of API integration patterns and edge computing strategies.

Life at Capgemini

Capgemini supports all aspects of your well-being throughout the changing stages of your life and career. For eligible employees, we offer:

  • Flexible work
  • Healthcare including dental, vision, mental health, and well-being programs
  • Financial well-being programs such as 401(k) and Employee Share Ownership Plan
  • Paid time off and paid holidays
  • Paid parental leave
  • Family building benefits like adoption assistance, surrogacy, and cryopreservation
  • Social well-being benefits like subsidized back-up child/elder care and tutoring
  • Mentoring, coaching and learning programs
  • Employee Resource Groups
  • Disaster Relief

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 340,000 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 fueled by its market leading capabilities in AI, generative AI, cloud and

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Company

Capgemini

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