Senior Software Engineer - Frontend (React)

CodeNinja Inc. · Riyad

Senior 🇬🇧 English

React.js React Native JavaScript (ES6+) TypeScript HTML5 CSS3 Tailwind CSS Bootstrap Styled Components NativeWind Redux Redux Toolkit MobX Zustand Context API RESTful APIs GraphQL Apollo Client Git Jest React Testing Library React Native Testing Library CI/CD pipelines Next.js Expo WCAG Lighthouse WebPageTest React profiling Google Play Store Apple App Store Firebase Analytics Crashlytics Sentry

Job description

About the role

CodeNinja is looking for a Senior Software Engineer specializing in frontend development with React. You will design and build high‑performance, responsive web and mobile applications that drive user engagement.

Key responsibilities

Develop and maintain scalable UI components using React.js and React Native.
Create responsive, visually appealing interfaces for web and mobile platforms.
Integrate RESTful APIs and GraphQL services, handling authentication and secure data flow.
Collaborate with UI/UX designers, backend engineers, product managers, and QA teams.
Ensure code quality through testing, code reviews, and CI/CD pipelines.
Mentor junior developers and contribute to technical best practices.

Required profile

4‑7+ years of professional frontend development experience.
Strong proficiency in JavaScript (ES6+) and TypeScript.
Deep knowledge of HTML5, CSS3 and modern styling frameworks.
Experience with state‑management libraries such as Redux, MobX, Zustand or Context API.
Hands‑on experience with mobile development using React Native.
Familiarity with Git, automated testing (Jest, React Testing Library), and CI/CD workflows.

Required skills

React.js
React Native
JavaScript (ES6+)
TypeScript
HTML5
CSS3
Tailwind CSS, Bootstrap, Styled Components, NativeWind
Redux, Redux Toolkit, MobX, Zustand, Context API
RESTful APIs
GraphQL, Apollo Client
Git
Jest, React Testing Library, React Native Testing Library
CI/CD pipelines
Next.js, Server‑Side Rendering
Expo, Progressive Web Apps
WCAG accessibility standards
Lighthouse, WebPageTest, React profiling tools
Google Play Store, Apple App Store publishing processes
Firebase Analytics, Crashlytics, Sentry

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Published 4 months ago

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CodeNinja Inc.

Riyad

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