ReactJS Developer

Job Role: Lead Frontend Developer - 4+ Years

Location: Bangalore

Company Overview

iAI Solution Pvt Ltd (https://iaisolution.com/) operates at the edge of applied AI where foundational research meets real-world deployment. We craft intelligent systems that think in teams, adapt with context, and deliver actionable insight across domains.

Position Summary

We are looking for a Lead Front-End Developer (4+ Years experience) to join our team in Bengaluru, India with strong expertise in front-end technologies like JavaScript, HTML, CSS, React, and Next.js, as well as a solid understanding of back-end development, including database management and data structures and algorithms (DSA). The ideal candidate will have experience working with both SQL and NoSQL databases, such as MongoDB, and be proficient in using Git for version control. Experience in building SaaS platforms is highly desirable.

Key Responsibilities

• Lead the design, development, and maintenance of scalable, high-performance web applications with a focus on front-end.
• Build responsive and user-friendly interfaces using JavaScript, TypeScript, HTML, CSS, React, Next.js, and Tailwind CSS.
• Define and implement best practices in front-end architecture, state management, and design systems.
• Optimize rendering strategies (SSR, SSG, ISR, RSC) to ensure high performance and SEO-friendly applications.
• Collaborate with product managers, designers, and back-end engineers to define technical requirements and deliver high-quality software.
• Mentor junior developers, review code, and drive continuous improvements in development processes.
• Ensure seamless integration with back-end services and databases (SQL, NoSQL, MongoDB).
• Troubleshoot, debug, and optimize applications for maximum speed, scalability, and reliability.

Qualifications

• 4+ years of professional experience in front-end development, delivering production-grade applications.
• Strong expertise in JavaScript, TypeScript, React, Next.js, HTML, CSS, and Tailwind CSS.
• Proficiency in animation libraries (e.g., GSAP) and building engaging UI experiences.
• Solid understanding of rendering strategies (SSR, SSG, ISR, RSC) and front-end performance optimization.
• Experience with state management libraries (Redux Toolkit, Zustand, Context API, or similar).
• Expertise in building reusable, modular, and scalable component-driven architectures.
• Familiarity with design systems and UI/UX best practices.
• Good understanding of back-end fundamentals, databases (SQL, NoSQL, MongoDB), and REST/GraphQL APIs.
• Strong foundation in data structures and algorithms (DSA).
• Excellent problem-solving and debugging skills.
• Proficiency in Git and collaborative development workflows.

Must-Have Skills

• React, Next.js, TypeScript, Tailwind CSS
• State management (Redux Toolkit/Zustand/Context API)
• Rendering strategies (SSR, SSG, ISR, RSC)
• Strong understanding of UI/UX and responsive design principles
• Strong knowledge of memoization techniques and performance optimization
• Proficient in leveraging network interceptors
• Git and version control best practices
• 
  

Good-to-Have Skills

• Experience with animation libraries (GSAP, Framer Motion)
• Exposure to SaaS platform development
• Knowledge of testing frameworks (Jest, Cypress, React Testing Library)
• Understanding of CI/CD pipelines and DevOps practices

Preferred Qualifications

• Prior experience in leading front-end projects or mentoring junior developers.
• Contributions to open-source projects or strong GitHub/portfolio demonstrating advanced front-end work.
• Experience in AI-driven platforms or SaaS-based product companies.

Perks & Benefits

• Competitive salary with performance-based bonuses.
• Opportunity to work on cutting-edge real-time audio/video applications.
• Flexible working hours .
• Access to the latest development tools and technologies.

React.js Developer:

Job Description:

We are looking for a skilled react.js developer to join our front-end development team. In this role, you will be responsible for developing and implementing user interface components From Figma using React.js concepts and workflows such as Redux, Flux, and Webpack. You will also be responsible for profiling and improving front-end performance and documenting our front-end codebase.

To ensure success as a react.js developer, you should have in-depth knowledge of JavaScript and React concepts, excellent front-end coding skills, and a good understanding of progressive web applications. Ultimately, a top-class react.js developer should be able to design and build modern user interface components to enhance application performance.

Responsibilities:

• Meeting with the development team to discuss user interface ideas and applications.
• Reviewing application requirements and interface designs.
• Identifying web-based user interactions.
• Developing and implementing highly responsive user interface components using react concepts.
• Writing application interface codes using JavaScript following react.js workflows.
• Troubleshooting interface software and debugging application codes.
• Developing and implementing front-end architecture to support user interface concepts.
• Monitoring and improving front-end performance.
• Documenting application changes and developing updates.

Requirements:

• Bachelor’s degree in computer science, information technology, or a similar field.
• Previous 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, Webpack, Enzyme, Redux, and Flux.
• 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.
• Experience with Figma

Senior Software Engineer, Frontend

https://www.alivecor.com/">AliveCor, the pioneer of the smartphone EKG, with millions of EKGs from a large and growing user base, seeks a Senior Software Engineer (Front-end Applications) to contribute to the Applications team. You will be an integral member of our engineering team, responsible for developing industry-leading web applications that transform the healthcare industry and affect the way consumers use, engage, and act on their health data.

• Passionate about User Experience.
• Has great verbal and written communication skills to engage directly with your peers.
• Understands and is thoughtful about engineering trade-offs
• Experience building web applications with cross-browser support and RESTful API integrations
• Commitment to delivering results.
• Passionate about continuous improvement.

• B.E in Computer Science or a related discipline, or related practical experience.
• 5-8 years of Frontend development experience with at least 2 years working as a React.js Developer.
• A strong grasp of software engineering and web application development fundamentals, including JavaScript (ES5, ES6), HTML and CSS.
• Aptitude to learn new technologies (e.g. ES.Next).
• Excellent troubleshooting skills.
• Familiarity with RESTful APIs to connect the Front-end applications to backend service
• Bonus points for:
• Publicly available web applications, portfolios, or examples available on a source repository (e.g. GitHub, GitLab, Bitbucket)
• An interest in data visualizations using JavaScript libraries such as D3, Highcharts, and others
• Experience managing front end tooling (e.g. gulp, grunt, webpack, post-CSS, service workers)
• Experience with performance analysis and tuning of web application
• Experience developing back end server APIs and/or server-side rendering

AliveCor is on a mission to define modern healthcare through data, design and disruption. We’ve pioneered the creation of FDA-cleared machine-learning techniques, transformed wearable medtech to put proactive heart care at everyone’s fingertips. Kardia is the most clinically validated mobile EKG technology. AliveCor was named as one of the Top 10 Most Innovative Companies in Health for 2017 by Fast Company as part of the publication’s annual ranking of the world’s Most Innovative Companies. AliveCor was awarded the 2015 Tech Pioneer by the World Economic Forum and one of the 50 Smartest Companies in 2015 by the MIT Technology Review. AliveCor recently announced a collaboration with Mayo Clinic that will result in new machine learning capabilities to unlock previously hidden health indicators in EKG data, potentially improving heart health as well as overall health care for a variety of conditions. AliveCor is a privately held company headquartered in Mountain View, CA.

AliveCor is an equal opportunity employer and will not discriminate against any employee or applicant on the basis of age, colour, disability, gender, national origin, race, religion, sexual orientation, or any other classification protected by federal, state, or local law.

Watch the following video demonstrating our product.

https://www.youtube.com/watch?v=8I9xosgA-Ig">KardiaMobile: How's your heart?
https://www.youtube.com/watch?v=8I9xosgA-Ig

• Experience working with HTML5, CSS3 in user interface design.
• Understanding of web technologies including one or more of the following:, Javascript (React, Angular, Node, D3, etc.)
• Expert knowledge on CSS preprocessors like Sass and LESS
•  Experience on  RESTful API.
• Strong typography, layout and visual design skills.

• Good exposure to databases, SQL queries
• Good analysis skills in order to troubleshoot and resolve the problems.
• Creative to suggest ways to simplify the UI workflows

**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