Front End Developer- React.js

Overview

Job Summary:

We are looking for an experienced React Frontend Developer with extensive expertise in Vanilla

JavaScript (Vanilla JS) and a strong understanding of Data Structures and Algorithms (DSA). The ideal

candidate should be well-versed in building efficient, scalable, and high-performance web applications,

leveraging React.js along with core JavaScript principles. The candidate should also be adept at solving

complex problems and optimizing front-end performance through a solid understanding of DSA.

Key Responsibilities:

 Problem Solving & Optimization: Apply knowledge of data structures (arrays, linked lists,

stacks, queues, trees, etc.) and algorithms (sorting, searching, dynamic programming, etc.) to

optimize the performance of web applications. You will identify bottlenecks in code and use

algorithmic thinking to solve complex problems efficiently.

 Vanilla JavaScript Expertise: Write clean, maintainable code using vanilla JavaScript, handling

everything from DOM manipulation to asynchronous data handling. Utilize your understanding

of closures, promises, callbacks, and event handling to build efficient, scalable web applications

without relying on external libraries for basic functionality.

 React.js Development: Leverage React.js to build dynamic, reusable components. Use React

hooks (useState, useEffect, useMemo, useCallback) to manage state, lifecycle, and performance

optimizations in functional components.

 Template Design & UI Implementation: Develop responsive, mobile-first UI templates using

vanilla JavaScript, React.js, and CSS to ensure an excellent user experience across all platforms.

Implement solutions that prioritize performance, maintainability, and scalability.

 State Management & Optimization: Use state management tools like React Context or Redux

efficiently. Implement memoization techniques and lazy loading to improve performance in

large-scale applications.

 Version Control & Collaboration: Use Git (Bitbucket) for version control to maintain code quality

and collaborate with other team members on software development.

 Backend Integration: Collaborate with backend developers to seamlessly integrate RESTful APIs,

GraphQL endpoints, or other server-side logic into the frontend. Ensure smooth communication

between the front-end and backend using asynchronous JavaScript (Promises, async/await).

Required Skills:

 Advanced Vanilla JavaScript (Vanilla JS): Extensive experience with pure JavaScript (ES6/ES7+).

Ability to build interactive, high-performance web applications without relying on external

libraries for core functionality. This includes in-depth knowledge of JavaScript’s core features like

closures, scoping, event delegation, DOM manipulation, and handling asynchronous tasks using

Promises, async/await, and callbacks.

 Deep Understanding of Data Structures & Algorithms (DSA): Strong understanding of core data

structures (such as arrays, objects, stacks, queues, trees, graphs, hash maps) and algorithms

(like sorting, searching, recursion, dynamic programming, graph traversal). Ability to apply

these concepts to solve complex problems efficiently and ensure application scalability and

performance.

 React.js Expertise: Proficient in React.js and its ecosystem. Knowledge of React lifecycle

methods and React hooks for managing component state and side effects. Understanding React

Router for client-side routing and ensuring seamless navigation in SPAs.

 Responsive Design & CSS: Expertise in using CSS (Flexbox, Grid) to design responsive layouts

and implementing mobile-first strategies. Familiarity with CSS preprocessors (like Sass or Less)

and CSS frameworks like React Bootstrap or Material UI.

 State Management in React: Strong experience with React Context, Redux, or other state

management tools for maintaining a consistent application state across multiple components.

 Version Control: Experience with Git (preferably Bitbucket) for code versioning and

collaboration within a team environment.

Nice-to-Have Skills:

 API Integration & Testing: Familiarity with API testing tools like Postman and integrating APIs in

a way that handles errors efficiently and optimizes performance.

 UI/UX Collaboration: Familiarity with design tools like Figma to collaborate with design teams

for developing high-quality, user-friendly interfaces.

 Cloud Platforms: Basic understanding of cloud platforms like AWS, Azure, or Google Cloud, and

how they relate to the deployment and hosting of front-end applications.

Qualifications:

 Bachelor’s degree in Computer Science, Web Development, or a related field.

 4+ years of hands-on experience in front-end development, with a primary focus on React.js,

vanilla JavaScript, and Data Structures & Algorithms.

Job Type: Full-time

Pay: ₹70,000.00 - ₹90,000.00 per year

Schedule:

• Day shift
• Monday to Friday
• Morning shift

Application Question(s):

• We must fill this position urgently. Can you start immediately?
• Are you from Bangalore?
• How many years of work experience do you have in Postman?
• Do you have good understanding of Data Structure and Algorithms?
• How many years of over all work experience do you have?
• How many years of work experience do you have in React.JS?
• How many years of work experience do you have in JavaScript?
• How many years of work experience do you have in HTML & CSS?
• How many years of work experience do you have in Tailwind CSS?
• How many years of work experience do you have in Material UI?
• How many years of work experience do you have in React Bootstrap?
• Do you have experience in template design and implementing responsive layouts.?
• How many years of experience you have in Vanilla.js

Work Location: In person