Senior Web Frontend Engineer

ThreatXIntel; Chennai District; On-site; INR 1,800,000 - 3,600,000; Full time

Job summary

ThreatXIntel is seeking a Senior Web Frontend Engineer to architect and build enterprise-grade web applications using React and modern frontend technologies. The role focuses on UI architecture, reusable components, and TypeScript migration to improve type safety and maintainability.

You will work with technologies like React, JavaScript, TypeScript, HTML5, CSS3, Webpack, Vite, and Storybook, and you will implement comprehensive testing strategies (Unit, Integration, E2E) while driving code

Qualifications

• 5+ years of frontend web development experience.

Responsibilities

• Architect and develop scalable enterprise web applications using React and modern JavaScript.
• Build responsive and maintainable applications using HTML5, CSS3, and ES6+ JavaScript.
• Manage frontend build systems using Webpack and Vite.
• Work with Monorepo architectures and package management.
• Develop and maintain reusable UI component libraries using Storybook.
• Document frontend components and establish reusable design patterns.
• Migrate existing JavaScript modules to TypeScript to improve type safety and maintainability.
• Develop comprehensive Unit, Integration, and End-to-End (E2E) testing suites.
• Work with modern test runners and assertion frameworks.
• Conduct technical code reviews across frontend projects.
• Review and contribute to applications built using frameworks such as React, Vue, Svelte, and SolidJS.
• Apply modern asynchronous JavaScript programming techniques.
• Drive frontend code quality, maintainability, and engineering best practices.

Skills

5+ yrs exp

React

JavaScript/ES6+

TypeScript

HTML5

CSS3

Webpack

Vite

Monorepo

Storybook

Unit Testing

Integration Testing

E2E Testing

Async JavaScript

Tools

Webpack

Vite

Storybook

Monorepo

Job description

We are looking for a Senior Web Frontend Engineer with 5+ years of relevant experience to architect, build, and maintain enterprise-grade web applications using modern frontend technologies.

The ideal candidate should have strong expertise in React, JavaScript, TypeScript, HTML5, CSS3, Webpack, Vite, Monorepo, Storybook, and frontend testing. The role will involve UI architecture, reusable component development, TypeScript migration, code quality, testing, and technical code reviews.

Key Responsibilities

• Architect and develop scalable enterprise web applications using React and modern JavaScript.
• Build responsive and maintainable applications using HTML5, CSS3, and ES6+ JavaScript.
• Manage frontend build systems using Webpack and Vite.
• Work with Monorepo architectures and package management.
• Develop and maintain reusable UI component libraries using Storybook.
• Document frontend components and establish reusable design patterns.
• Migrate existing JavaScript modules to TypeScript to improve type safety and maintainability.
• Develop comprehensive Unit, Integration, and End-to-End (E2E) testing suites.
• Work with modern test runners and assertion frameworks.
• Conduct technical code reviews across frontend projects.
• Review and contribute to applications built using frameworks such as React, Vue, Svelte, and SolidJS.
• Apply modern asynchronous JavaScript programming techniques.
• Drive frontend code quality, maintainability, and engineering best practices.

Mandatory Technical Skills

• 5+ years of frontend web development experience
• React
• JavaScript / ES6+
• TypeScript
• HTML5
• CSS3
• Webpack
• Vite
• Monorepo
• Storybook
• Unit Testing
• Integration Testing
• E2E Testing
• Modern asynchronous JavaScript

Good to Have

• Vue
• Svelte
• SolidJS
• Experience migrating large JavaScript codebases to TypeScript
• Experience building enterprise-scale component libraries
• Strong code review and frontend architecture experience

Ideal Candidate

The ideal candidate should be a senior frontend engineer capable of independently handling frontend architecture, React development, build tooling, TypeScript migration, reusable component systems, and automated testing while maintaining high standards of code quality.