
Senior Frontend Developer
at Sequoia funded D2C startup in Healthcare/wellness space


About
Our client is a platform of digital-first health clinics owned and operated under one house, with each of them working together toward one mission: To help Indians lead a more fulfilling life surrounded by wellness and grace.
The business is creating a family of purposeful health platforms with personalized solutions for a particular problem in a niche segment. Each platform provides the essentials to enable an individual segment of people to lead a graceful life full of purpose and well being.
Role
As the senior member of the frontend development team at Mosaic, you will be responsible for setting best practices and making sure that the others adhere to them. Also, you will be responsible for shaping up the entire system for scale and collaborating intensively with the backend and design teams to create the best consumer experiences.
Responsibilities
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- Develop all user-facing products in React
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- Build reusable components and front-end libraries for future use
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- Translate designs and wireframes into high-quality code
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- Optimize components for maximum performance across a vast array of web-capable
devices and browsers
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- Focus on code maintainability and performance of the application.
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- Provide technical advice and assist in solving programming problems.
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- Enhance SEO, Analytics, and overall frontend architecture for better performance
Requirements
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- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
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- Good foundation in design and a knack for designing interactions and elegant interfaces
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- Thorough understanding of React.js and its core principles
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- Good to have experience with popular React.js workflows (such as Flux or Redux)
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- Experience with data structure libraries
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- Familiarity with RESTful APIs
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- Familiarity with modern front-end build pipelines and tools
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- A knack for benchmarking and optimization
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- Familiarity with code versioning tools (such as Git)
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- Proficient in industry standard best practices such as Design Patterns, Coding Standards,
Coding modularity, Prototypes etc.
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- Experience in using debugging tools used for profiling/optimizing performance
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- Experience in debugging, tuning and optimizing UI components
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- Bachelor’s degree (B.A.) in Computer Science, MIS or related degree and a minimum of
two (2) years of relevant development or engineering experience.

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Job Title: Lead Frontend Developer (ReactJS/NextJS/Typescript)
Location: Chennai (Work From Office, yes, we love seeing your face!)
Experience: 5+ years
About the Company:
F22 Labs is a startup software studio based out of Chennai. We are the rocket fuel for other startups across the world, powering them with extremely high-quality software. We help entrepreneurs build their vision into beautiful software products (web/mobile). If you're passionate about creating stunning web experiences and solving real problems, you’ll fit right in with us. Let’s make cool things happen!
Position Overview:
As a Lead Frontend Developer at F22 Labs, you will take charge of designing, building, and maintaining scalable web applications using React, Next.js, and Typescript. You will lead a talented team of frontend developers while working alongside product and backend teams to deliver innovative solutions. You’ll ensure that we adhere to best practices in UI design, performance optimization, and code quality. Your leadership will help us shape the future of our web products, while continuously improving the user experience and pushing the boundaries of what’s possible.
Key Responsibilities:
- Lead and mentor a team of frontend developers, providing technical guidance, reviewing code, and ensuring the team follows best practices.
- Architect and design scalable, high-performance web applications using ReactJS, NextJS, and Typescript.
- Drive the development process with a focus on performance, optimization, and maintainability.
- Implement and manage CI/CD pipelines using GitHub Actions to streamline the development lifecycle.
- Oversee the integration of GraphQL to ensure smooth data management between the frontend and backend.
- Create high-quality, responsive UI/UX using Tailwind CSS, delivering exceptional user experiences.
- Ensure that the team follows best practices for testing (Jest, Vitest, Cypress) and continuously improve our test coverage.
- Take ownership of state management using tools like Redux or Zustand, ensuring consistency and performance across the app.
- Optimize web performance by implementing best practices, improving load times, and enhancing the overall user experience.
- Guide the team in implementing SEO best practices to ensure applications are discoverable and performant.
- Collaborate closely with product managers and backend teams to deliver features that meet both technical and user requirements.
- Troubleshoot, debug, and resolve UI/UX issues quickly and effectively.
- Foster a culture of continuous improvement, encouraging innovation and ensuring the team remains at the forefront of frontend technologies.
Qualifications and Requirements:
- 5+ years of experience working with ReactJS, NextJS, and Typescript, with a proven track record of leading frontend projects.
- Strong understanding of DOM manipulation and best practices for building interactive, dynamic user interfaces.
- Expertise with module bundlers such as Webpack or Vite for optimizing the build process.
- Experience with CI/CD pipelines and GitHub Actions for automating deployment processes.
- Extensive experience working with GraphQL and integrating it into frontend applications.
- Expertise in Tailwind CSS for building responsive and visually appealing web applications.
- Solid experience in unit testing (Jest, Vitest) and end-to-end testing (Cypress).
- Advanced experience with state management frameworks like Redux or Zustand.
- Deep knowledge of performance optimization techniques and how to apply them in real-world scenarios.
- Strong understanding of SEO principles and implementing them in frontend projects.
- Proven leadership and mentorship skills, with the ability to guide teams and foster growth.
- Excellent communication skills to effectively collaborate with cross-functional teams.
Good to Have Skills (Extra Cool Points!):
- Familiarity with Websockets for real-time communication.
- Experience with WebRTC for building real-time video/audio applications.
- Familiarity with Framer Motion for creating animations in React.
- Experience with Docker and Kubernetes for containerization and orchestrating deployment processes.
Why Join Us (Perks & Benefits):
- Health insurance (because we want you at your best, inside and out).
- Flexible work timings (get your work done, but do it your way).
- Better-than-market compensation (we know you’re worth it!).
- A supercharged learning culture—grow your skills fast.
- Rapid career growth opportunities—move up faster than a rocket in the sky.
- Work with interesting, fun, and quirky colleagues who make every day feel like an adventure.
- Learn from the best in the industry (and maybe teach us something cool too).
Selection Process:
- Online Assessment
- 1-2 rounds of interviews (no need to stress, we’re all about getting to know you).

Role Overview:
The Frontend Development Intern will help build and refine the UI components for CopilotGTM, especially focusing on interfaces for proposal generation and customer-facing tools.
Key Responsibilities:
- Collaborate with the design and product teams to create user-friendly interfaces.
- Assist in developing UI components for proposal creation and sales tool integration.
- Conduct usability testing and incorporate feedback to improve user experience.
- Debug and troubleshoot frontend issues to ensure a smooth user experience.
Skills Required:
- Proficiency in HTML, CSS, JavaScript, and frontend frameworks like React.
- Understanding of UI/UX principles and responsive design.
- Familiarity with version control (Git).
Preferred:
- Experience with design tools like Figma or Sketch.
- Knowledge of backend APIs and integration workflows.

Looking for candidates only with tier 1 colleges OR have experience in a product-based company.
You will be designing front-end architecture with architectural guidelines in mind (secure,high-performing, scalable, extensible, flexible, simple).
● Architect, Design and develop front-end applications.
Desired Skills
● Minimum 6+ years of coding experience.
● Strong hands-on experience on React.js, MVC & related JS Frameworks.
● Strong knowledge of HTML5, CSS3, responsive design, single page applications.
● Build a highly scalable product right from scratch.
● Expertise in caching, minification, bundling techniques to improve front-end performance.
● Experience in working with AB Testing.
● Experience in using front-end monitoring tools to troubleshoot errors and recognise performance bottlenecks.
● Strong foundation in computer science fundamentals: data structures, algorithms, and coding.
● Proficient understanding of code versioning tools(GIT, SVN), working experience with Agile methodology and fast iterative development cycles


The Role:
You are a ReactJS / React Native Developer passionate about building world-class mobile and web applications with performant backend and glitch-free experience. You will be part of a team which will be delivering technology that enhances the in-app experience for our users and enables our development team s to build mobile apps easier, faster and more efficient. You will build compelling and engaging applications for Web and Mobile platforms. Employing your experience in latest ReactJS, React Native, HTML / CSS / Flexbox with discipline in collaboration and pair programming. Our clientele majorly comprises of BFSI companies, so experience in Financial Applications and enterprise data security will be a big-plus.
Responsibilities:
• Contribute to an Agile team to build web and mobile applications, APIs, SDKs and other tools as required
• Collaborate with various teams within Iorta to realize the requirements for the project and
Rapidly deliver iterative solutions
• Provide task plans and follow trends in technology and suggest new approaches to application design and development
• Review and evaluate designs for compliance with development guidelines
•. Implement best practices and methods to improve the development process within the
team and organization

We are seeking a highly experienced and skilled React/Next.js developer to join our team. The ideal candidate will have a strong track record of building and maintaining web applications using React and Next.js, as well as a strong understanding of front-end development.
Responsibilities:
- Develop and maintain web applications using React and Next.js
- Write clean, maintainable, and efficient code
- Collaborate with the design team to implement visually appealing and user-friendly interfaces
- Work with the back-end team to integrate with APIs and other server-side functionality
- Troubleshoot and debug issues as they arise
- Write and maintain comprehensive documentation
Requirements:
- Experience with Tailwind CSS to create custom, responsive user interfaces
- Experience with CSS-in-JS libraries
- Experience with Git, npm, and webpack
- Familiarity with RESTful APIs and GraphQL
- Strong debugging and troubleshooting skills
- Ability to work well in a team environment and communicate effectively with other developers and designers.
Preferred:
- Experience optimizing performance and scalability of web applications
- Familiarity with testing frameworks such as Jest
- Experience with deploying and maintaining web applications
- Experience with TypeScript
- Familiarity with other JavaScript libraries and frameworks such as Redux, GraphQL, and Apollo, react-query



- · 3+ Yrs Solid knowledge of frontend development with a minimum of 2 years of work on ReactJS,/ React native
- · Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
- · Strong & thorough understanding of Reactjs and its core principles
- · Experience with popular Reactjs workflows such as Redux
- · Knowledge of isomorphic React is a plus
- · Familiarity with RESTful APIs
- · Familiarity with modern front-end build pipelines and tools
- · High coding standards - understanding of test coverage best practices & test pyramid concept
- · Familiar with Continuous Delivery approach
- · Experience with Distributed and Concurrent Systems, knowing the tradeoffs between stateful/stateless and synchronous/asynchronous architectures
- · Passion about technology and its relationship with product and user experience
- · Ability to work independently - identify problems, create plans and implement solutions to them

Hands-on experience in React.js and Good understanding of core concepts
Hands-on experience in state management libraries like Redux.
Hands-on experience in HTML5 & CSS3 and JavaScript.
Experience integrating with Restful web services
Proficient with ES6/7/8 syntax and concepts
Proficient knowledge of cross-browser compatibility issues
Knowledge of modern authorization mechanisms, such as JSON Web Token
Experience with common front-end development tools such as Babel, Web pack, NPM.

What is the role?
We are looking for highly skilled candidates with experience in frontend programming and are comfortable in dealing with backend tools.
Key Responsibilities
- 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 ReactJS 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.
What are we looking for?
An enthusiastic individual with the following skills. Please do not hesitate to apply if you do not match all of it. We are open to promising candidates who are passionate about their work and are team players.
- 6 to 9 years of strong design and development experience in building massively large-scale distributed internet systems and products.
- Previous experience working as a React.js Developer.
- In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
- Strong experience using a client side MVC framework such as NodeJS, ReactJS, or Redux.
- Experience with user interface design.
- Knowledge of performance testing frameworks including Mocha and Jest.
- Experience with browser-based debugging and performance testing software.
- Experience in responsive design, cross browser compatibility, and website performance.
- Knowledge of frontend CSS frameworks like Bootstrap, Material UI, and preprocessors like SASS and LESS.
- Experience with handling Services, RESTful, APIs (NodeJS preferably).
Who will you work with?
You will be working with top-quality engineers who have built one of the best employee engagement SaaS platforms. You will be reporting to the Engineering Head and working closely with the Architect and other leads.
What can you look for?
A wholesome opportunity in a fast-paced environment that will enable you to juggle between concepts, yet maintain the quality of content, interact, and share your ideas and have loads of learning while at work. Work with a team of highly talented young professionals and enjoy the benefits of being at this Company
We are-
Rapidly growing fintech SaaS firm that propels business growth while focusing on human motivation. Backed by Giift and Apis Partners Growth Fund II, Company offers a suite of three products - Plum, Empuls, and Compass. Company works with more than 2000 clients across 10+ countries and over 2.5 million users. Headquartered in Bengaluru, Company is a 300+ strong team with four global offices in San Francisco, Dublin, Singapore, New Delhi.
Way forward
We look forward to connecting with you. As you may take time to review this opportunity, we will wait for a reasonable time of around 3-5 days before we screen the collected applications and start lining up job discussions with the hiring manager. We assure you that we will attempt to maintain a reasonable time window for successfully closing this requirement. The candidates will be kept informed and updated on the feedback and application status.

Job Requirements:
Strong experience in JavaScript (ES5), Object-oriented JavaScript and ES2015 concepts.* Experience in ReactJS with good understanding of React Lifecycle methods, component-based design and flux pattern.
* Experience in CSS frameworks (Bootstrap/Material Design/Foundation)
* Experience in unit testing frameworks (Jasmine/Mocha/Jest)
* Experience in module bundler or task manager (Webpack/System.js/Gulp/Grunt)
* Experience in web application profiling using tools such as Chrome DevTools
* Additional skills: Knowledge of ESB, NoSQL databases (Hadoop/Cassandra/MongoDB), experience with mobile, SaaS and cloud-based development.
* Ability to explore and grasp new technologies.



