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Senior Front End Developer (React.js)

Cognizant · Mexico City

New
CDI Hybrid Senior 🇬🇧 English
React.js JavaScript HTML5 CSS3 REST API Agile Unit Testing

Job description

About the Role

Join a global leader in digital transformation and take your career to the next level. We are looking for a highly skilled Senior Front End Developer to design and enhance modern web interfaces, driving innovation in a dynamic and inclusive environment.

Main Responsibilities

  • Design and maintain responsive UI screens and reusable components using React.js, HTML5, and CSS3 based on UI/UX wireframes.
  • Implement UI enhancements and extensions following strict component models, naming conventions, and coding standards.
  • Integrate front-end interfaces with back-end services by consuming RESTful APIs and managing complex UI data flows (loading, success, error states).
  • Debug and resolve technical defects using browser developer tools and logs; support SIT/UAT cycles by reproducing issues and validating fixes.
  • Actively participate in Agile ceremonies, collaborating closely with designers, back-end engineers, and QA teams to ensure high-quality delivery.
  • Contribute to technical documentation, unit testing, and rigorous code reviews to maintain excellence.

Candidate Profile

  • Proven experience as a Senior Front End Developer with a strong portfolio of high-quality web applications.
  • Expertise in building scalable and performant interfaces for critical applications, particularly in retail or POS environments.
  • Strong problem-solving skills and the ability to work effectively in an Agile, collaborative ecosystem.
  • Commitment to code quality, stability, and seamless user experiences.

Required Skills

  • Advanced React.js development
  • JavaScript (ES6+) & HTML5/CSS3
  • RESTful API Integration
  • Agile Methodologies & Unit Testing
  • UI/UX Implementation & Debugging

What We Offer

  • Opportunity to grow within one of the world's largest and fastest-growing IT service providers.
  • Continuous learning support and dedicated funding for professional development and training.
  • Highly competitive salary package and comprehensive benefits.
  • Exposure to large-scale, global projects for industry-leading clients.

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Published 1 hour ago

Expires 1 month from now

11 views · 0 applications

Cognizant

Mexico City