We are looking for an experienced **MERN Stack Developer** with strong expertise in **React.js** , **Node.js** , and **GraphQL** . The ideal candidate will be responsible for developing full-stack web applications, building efficient APIs, and delivering high-performance user interfaces. **Key Skills:** + **Frontend:** React.js , JavaScript , TypeScript, HTML, CSS, Redux, Hooks + **Backend:** Node.js, Express.js, GraphQL, REST APIs + **Database:** MongoDB + **Tools & DevOps:** Git, npm/yarn, Webpack, CI/CD (Jenkins/GitLab), Docker (optional) + **Testing:** Jest, Mocha, Cypress (preferred) **Requirements:** + 5–12 years of hands-on experience in full-stack development + Strong understanding of GraphQL schema design and API integration + Experience with MongoDB data modeling and performance optimization + Familiarity with responsive design and cross-browser compatibility + Agile/Scrum experience preferred + Excellent problem-solving and communication skills Cognizant is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.