Senior React Native Engineer – Hybrid (Sunnyvale)

Cognizant; Hartford (CT); Hybrid; USD 90,000 - 130,000; Full time

Benefits offered by this job

Health insurance

Paid holidays

Paid time off

401(k) contribution

Disability insurance

Parental leave

Employee stock purchase plan

Job summary

Cognizant in the United States is seeking an experienced React Native Developer to design, build, and ship high-quality cross-platform mobile apps for Android and iOS. You will drive features from development through production, collaborating with design, QA, and backend teams to deliver polished user experiences.

The role offers a hybrid work arrangement, a competitive salary, and benefits. You’ll work with modern JavaScript tooling, apply common design patterns, and optimize performance across

Qualifications

• 5+ years of professional software development, with strong hands-on React Native experience.
• Experience building apps for Android and iOS.
• Understanding cross-platform app development lifecycle from development to production.
• Basic understanding of JavaScript build tools.
• Knowledge of software design patterns (MVC, Delegation, Singleton, Factory, Adapter).

Responsibilities

• Design, develop, and maintain cross-platform mobile apps with React Native.
• Own full app lifecycle from development to production release.
• Write clean, maintainable client-side code following best practices.
• Apply software design patterns to build scalable apps.
• Use JavaScript build tools to manage builds, dependencies, and releases.
• Collaborate with cross-functional teams to translate requirements into features.
• Troubleshoot and optimize performance on Android and iOS.

Skills

React Native

Mobile development

JavaScript

Cross-platform

iOS & Android

Tools

Git

Xcode

Android Studio

Job description

Cognizant in the United States is seeking an experienced React Native Developer to design, build, and ship high-quality cross-platform mobile apps for Android and iOS. You will drive features from development through production, collaborating with design, QA, and backend teams to deliver polished user experiences.

The role offers a hybrid work arrangement, a competitive salary, and benefits. You’ll work with modern JavaScript tooling, apply common design patterns, and optimize performance across