Sr React Developer with Test Automation Expertise

Job Location : Newark, NJ

Job Description

We are seeking an experienced Sr React Developer with deep expertise in React, TypeScript, and test automation to spearhead our frontend development initiatives. This pivotal role involves designing, implementing, and maintaining a high-performance, scalable frontend architecture while championing robust automated testing frameworks. As a key player, you will collaborate with cross-functional teams to deliver a stable, maintainable, and user-friendly application.

Our technology stack features React with TypeScript on the frontend, Python for the API layer, and Playwright/Cypress for test automation. The ideal candidate is a frontend expert with a keen understanding of modern state management, component-driven architecture, and best practices for performance optimization.
 

Key Responsibilities:

1. Frontend Architecture & Development

• Design and develop scalable, maintainable, and reusable React components.

• Implement TypeScript best practices for strongly typed applications.

• Architect efficient and optimized state management using Redux, Zustand, or Context API.

• Enhance application performance through techniques such as code splitting, lazy loading, memoization, and virtualized lists.

• Ensure responsive and accessible UI leveraging modern CSS methodologies (CSS-in-JS, Tailwind, Styled Components).

2. Test Automation & Quality Assurance

• Develop and maintain robust automated testing frameworks using Playwright and Cypress.

• Ensure comprehensive unit, integration, and end-to-end testing coverage.

• Build test strategies for cross-browser and cross-device compatibility.

• Implement strategies to reduce flakiness in test automation, ensuring stability over time.

• Collaborate with backend and DevOps teams to seamlessly integrate tests into CI/CD pipelines.

Required Qualifications:

• 8+ years of experience in frontend development with a focus on React.

• Strong proficiency in TypeScript, including type safety and advanced typing concepts.

• In-depth understanding of modern state management solutions (Redux, Zustand, Context API).

• Experience with performance optimization techniques.

• Proven expertise in automated testing using Playwright and Cypress.

• Hands-on experience with modern CSS methodologies.

• Familiarity with CI/CD processes and integrating automated tests.

• Strong problem-solving skills and a proactive approach to leadership.

Preferred Qualifications:

• Familiarity with backend technologies, especially Python APIs.

• Experience with DevOps tools and infrastructure automation.

• Knowledge of accessibility standards and responsive web design.

• Strong communication and teamwork skills.

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

Disclaimer

Capgemini is an Equal Opportunity Employer encouraging diversity in the workplace. All qualified applicants will receive consideration for employment without regard to race, national origin, gender identity/expression, age, religion, disability, sexual orientation, genetics, veteran status, marital status or any other characteristic protected by law.

This is a general description of the Duties, Responsibilities and Qualifications required for this position. Physical, mental, sensory or environmental demands may be referenced in an attempt to communicate the manner in which this position traditionally is performed. Whenever necessary to provide individuals with disabilities an equal employment opportunity, Capgemini will consider reasonable accommodations that might involve varying job requirements and/or changing the way this job is performed, provided that such accommodations do not pose an undue hardship.

Capgemini is committed to providing reasonable accommodations during our recruitment process. If you need assistance or accommodation, please reach out to your recruiting contact.

Click the following link for more information on your rights as an Applicant http://www.capgemini.com/resources/equal-employment-opportunity-is-the-law