Senior Developer React FSE jobs in United States
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Cognizant · 13 hours ago

Senior Developer React FSE

Cognizant is a leading technology company, and they are seeking a Senior ReactJS + Java Developer to build modern, scalable web applications. The role involves leading discussions with clients, reviewing architecture, and collaborating with cross-functional teams to deliver high-quality solutions in an Agile environment.

ConsultingIndustrial AutomationInformation TechnologySoftwareSoftware Engineering
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Responsibilities

Develop and maintain front-end applications using ReactJS and Java, with hands-on coding as a primary responsibility
Lead discussions with clients independently and provide technical guidance
Review architecture and propose solutions for migrating legacy applications from AngularJS to ReactJS
Collaborate with cross-functional teams including DevOps, database, and backend teams
Design and implement APIs and integrate with REST/GraphQL services
Create low-level design documents such as sequence diagrams and schema designs
Build reusable components, frameworks, and proof-of-concepts for UI and middleware
Ensure code quality through unit and integration testing, adhering to secure coding standards

Qualification

ReactJSJavaREST/GraphQL APIsReduxJavaScriptHTMLCSSMicroservicesSpring BootAgile deliveryDevOps practicesProblem-solvingCommunication skillsCollaboration skills

Required

Minimum 9 years of experience as a senior front-end developer
Strong expertise in ReactJS, Redux, JavaScript, HTML, CSS, and CSS preprocessors (SASS, LESS)
Experience with Bootstrap and unit testing frameworks (Karma, Jasmine)
Strong understanding of RxJS and reactive programming
Experience with Angular reactive forms and migration projects
Proficiency in integrating REST/GraphQL APIs
Strong experience in Java, microservices, and Spring Boot

Preferred

Familiarity with Next.js, Vite.js, and modern UI frameworks
Experience in Agile delivery and DevOps practices
Excellent problem-solving skills and ability to work independently
Strong communication and collaboration skills for client-facing discussions
Bachelor's degree in computer science, IT or equivalent

Benefits

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

Company

Cognizant

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Cognizant is a professional services company that helps clients alter their business, operating, and technology models for the digital era.

Funding

Current Stage
Public Company
Total Funding
$0.24M
Key Investors
Summit Financial Wealth Advisors
2025-03-08Post Ipo Equity
2016-11-18Post Ipo Equity· $0.24M
1998-06-19IPO

Leadership Team

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Ravi Kumar S
Chief Executive Officer
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Anil Cheriyan
CTO / EVP Strategy & Technology
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Company data provided by crunchbase