Desired Candidate profile
● Architect and build scalable front-end web solutions using JavaScript, React, HTML, CSS and other fundamental web technologies.
● Build reusable code and libraries using iterative development practices for future use
● Ensuring high performance on mobile and desktop.
● Implement monitoring, metric dashboards, runbooks, logging, escalations, and alerts.
● Drive code and design reviews of components / systems / products in scope and drive the architectural governance for them.
● Implement best practices and constantly learn new ways of keeping code bases up to date
Roles and Responsibilities:
● A solid grounding in Computer Science fundamentals (based on a Bachelor's or Master's in Computer Science or related field) from reputed institutes
● 4+ years of development experience in modern web technologies (HTML/CSS, JavaScript), frameworks (React, Backbone.js, AngularJS, , etc)
● Ability to build a feature from scratch & drive it to completion
● Prior hands-on experience in building responsive web interfaces at scale for consumers in a product engineering setup
● Thorough understanding of the responsibilities of the platform, database, API, caching layer, proxies, and other web services used in the system
● Excellent problem solving, debugging and optimization skills
● Strong knowledge of browser behavior, performance, compatibility and cross-browser issues
● Good understanding of REST API
● Familiar with front-end build tools, such as Webpack, Grunt and Gulp.js
● Proficient understanding of code versioning tools, such as Git
● Open source contribution is a plus.

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Position Overview: Front-End Developer (Next.js)
We are seeking an experienced Front-End Developer with strong hands-on expertise in Next.js and React.js. The ideal candidate will build and maintain scalable, responsive web applications using modern front-end technologies and best practices in performance, SEO, and rendering techniques.
Key Responsibilities
- Develop and maintain responsive, scalable web applications using React.js and Next.js
- Implement CSR, SSR, and SSG using Next.js best practices
- Build reusable, modular UI components following clean front-end architecture
- Integrate and manage REST APIs for data retrieval, caching, and error handling (React Query or similar)
- Optimize applications for performance, SEO, and accessibility
- Collaborate with backend engineers and UI/UX designers to deliver high-quality user interfaces
- Debug, test, and document code to ensure maintainability and scalability
Required Skills
- Strong knowledge of Next.js fundamentals (routing, rendering techniques, API routes)
- Proficiency with React Hooks and understanding of component lifecycle
- Solid experience integrating REST APIs and handling errors effectively
- Familiarity with state management libraries such as React Query, Redux, or Zustand
- Strong skills in JavaScript (ES6+), HTML5, and CSS3
- 7–10 years of front-end development experience
- Bachelor's degree in Computer Science, Software Engineering, or a related field.
- 2 to 12 years of professional experience in React Native development.
- Strong proficiency in JavaScript, TypeScript, and modern web technologies.
- Experience working with RESTful APIs and integrating third-party libraries.
- Solid understanding of mobile app architecture and design patterns.
- Knowledge of mobile UI/UX best practices and principles.
- Familiarity with version control systems such as Git.
We are looking to hire an experienced AngularJS Developer to join our dynamic team.
To ensure success as an AngularJS Developer, you should have extensive knowledge of theoretical software engineering, be proficient in JavaScript, HTML, and CSS, and have excellent project management skills.
- Proficient understanding of Angular
- Experience of working on DOM based JavaScript frameworks.
- Experience with JavaScript, HTML, CSS and jQuery.
- Familiarity with ticketing tools JIRA & Trello.
Excellent in analytical and multitasking skills. - UX (Front-End) development.
- Ability to work with a team of developers, communicating professionally and effectively.
● Experience Level: Min 2+ years
● JavaScript and react.
● RESTful API’s, basic HTTP knowledge, GET/POST.
● Experience using technologies like React, Redux, TypeScript, modern CSS frameworks and
web pack.
● Good Communication Skills
- Bachelor’s degree in Computer Science, Information Technology, or a similar field.
- At least 5-10 years' experience working as a React.js Developer.
- In-depth knowledge of JavaScript, CSS, HTML and front-end languages. Knowledge of REACT tools including React.js, Web pack, Enzyme, Redux, and Flux, Vuejs, Angular++, Python and latest technology skills.
- Experience with user interface design. Knowledge of performance testing frameworks including Mocha and Jest.
- Experience with browser-based debugging and performance testing software. Excellent troubleshooting skills. Good project management skills.
• Developing new user-facing features using React.js
• Building reusable components and front-end libraries for future use
• Translating designs and wireframes into high quality code
• Optimizing components for maximum performance across a vast array of web-capable devices and browsers
Skills - Must have
• Expertise in React JS ecosystem and ES6
• Ability to design and architect Enterprise JavaScript applications using React JS
• Well-versed with web mark up (HTML5 and CSS3), JSX, and templating technologies
• Good understanding of responsive and adaptive development
• Understanding of cross browser development and making sure application works seamlessly in different
browsers
• Experience in writing unit tests using JavaScript testing frameworks
• Demonstrated understanding of asynchronous request handling, partial page updates, and AJAX
• Ability to review specifications documents and provide technical inputs on successfully implementing
business solutions
• Ability to work independently as well as in a team and lead a project to completion
• Self-motivated with outstanding interpersonal skills, strong work ethic, and excellent communication and
presentation skills
• Experience in popular React.js workflows (such as Redux or MobX)
• Experience in common front-end development tools such as Babel, Webpack, and NPM among others
**About Company**
SleepyCat is India's First Mattress-In-A-Box brand! We deliver luxury mattresses, at a fraction of the usual cost, straight from our factory to your doorstep in an easy-to-carry package.
In sleepycat we constantly thrive to make our products and customer experience better using technology.
**About Role**
We are currently looking out for a frontend developer who is motivated to learn and work on challenging projects. You should have a product mindset with great technical skills. In sleepycat we promote new and fresh ideas which can directly or indirectly help customer experience and sales. Sleepycat provides to you platform to bring your thoughts into action and implement them.
Technical skills required (expertise in atleast two of these): Javascript, CSS, PHP
**Personal and Domain Growth Initiatives**
1. In SleepyCat we promote career growth. Once you are settled and have completely owned the system you are hired for, you have the freedom to pick some other technologies inside SC. You will be given time to learn and contribute. Right now we have Web Development (PHP/JS), ReactJS and Ruby on Rails. So you have the freedom to utilize 30% of your time on any of these languages if you wish to and remaining 70% on your primary domain.
2. We also promote self-growth. You can utilize 10% of your time to learn any skill you want and we will help you with that. It is not restricted to the tech domain, could be anything from marketing to sales to personality development.
**Interview Process Details**
***Technical Round 1: Development Knowledge Round***
We will test your skills in 3 domains
understanding an existing written code and ability to make changes
coding a logical question to test basic coding skills
ability to think of test cases to write a full proof code
***Technical Round 2: Coding Round***
45 minutes coding round where you will be required to code live sharing your screen. On the spot problem will be given.
**Additional details**
Website: https://sleepycat.in/
Work Culture: 6 days(All Saturday half day)
Office Location: 91Springboard, Kalina, Mumbai
Employee Strength: 40+ Employees
Founded: 2017
Funding: $1.6 Million
Read about Sleepycat and funding on Crunchbase: https://www.crunchbase.com/organization/sleepycat
Learn what employees say about Sleepycat on Glassdoor: https://tinyurl.com/r9oqfkl
Checkout what people say about SleepyCat products on Google: https://tinyurl.com/rco3nqr









