Senior Web Frontend Engineer

Experience: 5+ Years

Employment Type: Contract

Work Mode: Onsite

Role Overview

We are looking for a Senior Web Frontend Engineer with solid hands-on experience building and maintaining enterprise-grade web applications. The ideal candidate will have deep expertise in React, JavaScript, TypeScript, modern web technologies, frontend architecture, component systems, and automated testing.

The candidate will be responsible for leading frontend development, building reusable UI components, modernizing legacy JavaScript applications, and maintaining high standards of code quality.

Key Responsibilities

- Architect and develop scalable web applications using React, JavaScript, HTML5, and CSS3.
- Build reusable and maintainable UI component libraries using Storybook.
- Manage complex frontend projects using Webpack, Vite, and Monorepo architectures.
- Migrate existing JavaScript modules to TypeScript.
- Design and implement comprehensive Unit, Integration, and E2E testing strategies.
- Conduct technical code reviews and ensure frontend coding standards.
- Work across modern frontend frameworks such as React, Vue, Svelte, and SolidJS.
- Optimize frontend performance, scalability,



and application maintainability.
- Implement modern asynchronous JavaScript patterns and best practices.
- Collaborate with designers, backend engineers, architects, and other stakeholders.

Mandatory Skills

- 5+ years of frontend web development experience in enterprise environments.
- Strong expertise in React.
- Excellent knowledge of JavaScript ES6+, HTML5, and CSS3.
- Advanced experience with Webpack, Vite, and Monorepo.
- Strong hands-on experience with TypeScript.
- Experience migrating legacy JavaScript code to TypeScript.
- Strong experience with Storybook and reusable component development.
- Hands-on experience with Unit, Integration, and E2E testing.
- Strong understanding of modern asynchronous JavaScript programming.
- Experience conducting frontend code reviews.

Good to Have

- Experience with Vue, Svelte, SolidJS, or other modern frontend frameworks.
- Experience designing enterprise-scale frontend architecture.
- Experience with frontend performance optimization and CI/CD.
- Experience working with Agile development teams.

📌 Senior Web Frontend Engineer (Chennai)
🏢 Threatxintel Cyber Labs
📍 Chennai