Senior React Developer (Onsite)

Cognizant’s Digital Engineering practice is seeking a highly qualified Senior React Developer with experience developing and building high-performing, scalable, enterprise applications. You will be part of a digital software team that works on high-demand applications. Our engineers have a passion for high-quality, reliable and maintainable code. You will work side by side with product managers, designers, and clients, making decisions together in order to quickly deliver valuable working software to clients and their users. Our engineers are agile and retrospective, and not afraid to identify what we’re doing wrong, so we can fix it, and what we’re doing right, so we can improve on it. Above all, we judge success by the success of our team and the happiness of our customers.
 

Cognizant Digital Engineering If you’re like us, you’ve got big ideas. At Cognizant, we’re exploring new ideas every day. We help industry leading companies reinvent their business models and innovate products that create new value—by connecting people with things, insights and experiences. Cognizant digital engineering designs, engineers and delivers digital products and experiences that drive digital-first business models. We offer the most comprehensive digital engineering expertise and client-centric methodology for sustainable innovation.
 

Location:  Santa Clara, California.

You must be legally authorized to work in the United States without the need for employer sponsorship, now or at any time in the future.
Cognizant will not sponsor H-1B or other U.S. work authorization for this role. 

Responsibilities

Architect scalable and maintainable React applications, integrating with RESTful APIs and backend services.

Build reusable components and libraries using React, Redux, and modern JavaScript (ES6+).

Optimize performance across browsers and devices using tools like Webpack and Babel.

Ensure code quality through unit testing (e.g., Jest, Mocha) and continuous integration.

Troubleshoot and debug complex UI issues and ensure smooth user experiences.

Maintain and update technical documentation for future reference.

Work closely with UI/UX designers, product managers, and backend developers to align technical solutions with user needs.

Translate wireframes and mockups into responsive, high-quality interfaces.

Participate in Agile ceremonies and contribute to sprint planning and retrospectives.

Stay updated with React ecosystem trends, including Next.js, TypeScript, and server-side rendering.

Promote a culture of continuous learning, innovation, and technical excellence.

Evaluate and implement new tools and frameworks to improve development efficiency

Qualifications

Core Front-End :ReactJS, JavaScript (ES6+), HTML, CSS

State Management :Redux, Context API

Build Tools :Webpack, Babel

Testing :Jest, Mocha

Version Control :Git, GitHub

Collaboration :Jira, Confluence, Slack

The annual salary for this position is between $90,000 - $114,000 depending on experience and other qualifications of the successful candidate.

This position is also eligible for Cognizant’s discretionary annual incentive program, based on performance and subject to the terms of Cognizant’s applicable plans.

Benefits: Cognizant offers the following benefits for this position, subject to applicable eligibility requirements:

· Medical/Dental/Vision/Life Insurance

· Paid holidays plus Paid Time Off

· 401(k) plan and contributions

· Long-term/Short-term Disability

· Paid Parental Leave

· Employee Stock Purchase Plan

Disclaimer: The salary, other compensation, and benefits information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.

Travel: 0-5%25 
Why Choose Cognizant?
It takes a lot to succeed in today’s fast-paced market, and Cognizant Technology Solutions has become a leader in the industry. We love big ideas and even bigger dreams! We stand out because we put human experiences at the core. Our associates enjoy robust benefits and training opportunities from our industry-recognized, award-winning Academy team. You will have access to hundreds of technical trainings to keep your skillsets fresh and have opportunities to acquire certifications on the newest technologies.
Everything we do at Cognizant we do with passion—for our clients (fortune 100 companies), our communities, and our organization. It’s the defining attribute that we look for in our people.
If you love ambiguity, excited by change, and excel through autonomy, we’d love to hear from you! 
 

About Cognizant Digital Engineering
Well-designed software transcends digital technology, going beyond the fulfillment of basic requirements to focus instead on human needs. Within Cognizant Digital Engineering, we help clients develop software products that transform human insights into tangible, production-ready digital solutions. We also work with our clients to scale their native cloud applications. Using insights from the lived experiences of our consumers, we seamlessly replace traditional service strategies with engaging, precise, and direct digital applications. Designing phenomenal software is vital to success in the digital economy—and we understand that a human-centric approach is key to this design. 
www.cognizant.com
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