Frontend (React) Engineering Lead
Role Overview
We are looking for a hands-on frontend Sr. developer / lead responsible for building scalable, secure, and high-performing web applications using React, ensuring seamless integration with backend services and enterprise platforms.
Key Responsibilities
1. Build Frontend Applications
· Design and develop user interfaces using React.js and TypeScript.
· Build reusable UI components and shared frontend libraries.
· Design UI for performance and user experience using techniques such as lazy loading and virtualization.
· Integrate frontend applications with backend APIs and services.
· Collaborate with UX and visual design teams to ensure stellar user experience.
2. Implement Secure and Scalable UI Architecture
· Establish frontend design patterns such as MVVM, MVC, and Observer where appropriate.
· Implement authentication and authorization using standards such as OIDC and OAuth.
· Collaborate with backend team to ensure the application is scalable, performant, and maintainable.
3. Implement Modern Software Engineering Practices
· Implement CI/CD pipelines for frontend build and deployment.
· Write unit and integration tests to ensure application quality.
· Use code companions and modern developer tooling to improve productivity and code quality.
Required Capabilities / Skills / Experience
· 6–10 years of software engineering experience with a strong focus on frontend development.
· Hands-on experience in React.js, TypeScript, JavaScript, HTML5, and CSS3.
· Experience building reusable UI components and micro-frontend applications.
· Experience in frontend performance optimization and responsive design.
· Experience implementing authentication and authorization in web applications using modern security standards.
· Experience integrating frontend applications with REST APIs and backend services.
· Working knowledge of one or more cloud platforms (Azure/AWS/GCP) and front-end application deployment practices.
· Practical knowledge of CI/CD pipelines, version control, and frontend testing frameworks.
· Strong problem-solving, coding, and UI engineering skills focused on scalable, maintainable solutions.
About us
Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, building the bridge between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process and engineering expertise enables us to build an organization’s unique context into technology systems that amplify human potential, realize tangible returns and keep global enterprises ahead in a fast-changing world. See how at www.cognizant.com or @cognizant.
Additional employment information
Compensation 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.
Language requirements vary depending on roles, but we ask that all candidates have basic English proficiency for company-wide communications purposes. For roles based in Quebec, professional English proficiency is required, as you’ll deliver services to and collaborate with stakeholders outside the province who may not speak French.
Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, provincial or local laws.
If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email [email protected] with your request and contact information.
