
Job Responsibilities
- Develop and maintain reusable components and front-end libraries for future use.
- Translate designs and wireframes into high-quality, responsive UI components.
- Optimize components for maximum performance across different browsers and devices.
- Implement ReactJS best practices using Hooks, HOCs, and Functional Components.
- Manage state efficiently using Redux/Flux.
- Collaborate with backend developers to integrate REST APIs.
- Debug and test applications using Mocha & Jest.
- Ensure code quality, maintainability, and scalability using modern front-end tools.
Required Skills & Qualifications
✔ 3+ years of experience in ReactJS development.
✔ Strong knowledge of JavaScript, DOM, JSX.
✔ Hands-on experience with React Hooks, HOCs, and Functional Components.
✔ Expertise in ES6+ concepts (Arrow functions, Destructuring, Spread/Rest operators, Classes, Import/Export).
✔ Experience in HTML, CSS, and responsive design.
✔ Familiarity with REST APIs and integrating backend services.
✔ Experience with state management (Redux/Flux).
✔ Strong debugging skills using Mocha & Jest for performance testing.
✔ Hands-on experience with Git, Webpack, Babel, NPM.
Good to Have:
➕ Experience with backend development (Java, Microservices).
➕ Knowledge of modern authentication mechanisms (JWT, OAuth).

Similar jobs
About the Role:
We are hiring a Senior Frontend Engineer to build high-performance, scalable, and visually refined web applications. This is a hands-on engineering role focused on architecture, performance, and crafting exceptional user experiences.
You will work closely with design, product, and backend teams to build robust frontend systems, define engineering standards, and ship production-grade features that scale.
Responsibilities:
- Build scalable, modular frontend applications using React, Next.js, and TypeScript
- Architect component-driven UI systems and reusable design libraries
- Implement robust state management using Redux, Zustand, or similar
- Optimize Core Web Vitals, performance, and accessibility (WCAG)
- Translate Figma/design specs into pixel-perfect, production-grade interfaces
- Improve build systems, CI/CD pipelines, and developer tooling
- Implement testing strategies — unit, integration, and E2E (Jest, Cypress, Playwright)
- Mentor junior engineers and define engineering standards
- Collaborate with backend teams to design API contracts and integrations
Must Have:
- 5+ years of experience in frontend engineering
- Strong expertise in JavaScript/TypeScript and React/Next.js
- Experience building scalable frontend architecture from scratch
- Deep understanding of browser rendering, performance, and optimization
- Strong grasp of responsive design and accessibility best practices
- Experience with state management — Redux, Zustand, or similar
- Ability to write clean, maintainable, production-ready code
Good to Have:
- Experience building design systems or component libraries
- Familiarity with SSR/SSG and performance-driven architectures
- Experience with micro-frontends or large-scale frontend systems
- Exposure to cloud deployment workflows and frontend observability
- Three.js or WebGL experience
Tech Stack:
JavaScript / TypeScript · React · Next.js · Tailwind · Redux / Zustand · Webpack / Vite · Jest · Cypress · Playwright · GraphQL · REST APIs
Work Details:
- Location: HSR Layout, Bengaluru (Work from Office)
- Working Days: 6 days/week (Mon-Fri WFO, Sat WFH)
- Employment Type: Full-time
Compensation:
- Competitive salary
- Stock options with 4-year vesting
- Performance-based incentives
To Apply:
Share your resume, GitHub profile, portfolio or live product links, and a short note on a challenging frontend problem you solved.
- Proficiency in Angular (v8+) and TypeScript.
- Strong knowledge of HTML5, CSS3, and JavaScript/ES6+.
- Hands-on experience with RxJS for reactive programming.
- Experience with state management libraries like NgRx or similar.
- Familiarity with RESTful APIs and JSON data structures.
- Understanding of authentication and authorization mechanisms (OAuth, JWT).
- Experience with Angular CLI for project setup and management.
- Proficiency in browser developer tools for debugging.
- Strong experience with Jasmine, Karma, or other testing frameworks.
- Familiarity with build tools like Webpack or Vite.
About Gyaan:
Gyaan empowers Go-To-Market teams to ascend to new heights in their sales performance, unlocking boundless opportunities for growth. We're passionate about helping sales teams excel beyond expectations. Our pride lies in assembling an unparalleled team and crafting a crucial solution that becomes an indispensable tool for our users. With Gyaan, sales excellence becomes an attainable reality.
About the Job:
Gyaan is looking for a Senior React JS developer to join our dynamic team! As a Senior React JS developer, you will be responsible for building components and modules using React and associated tooling (Redux, React-query, Indexed-DB, Material-UI). Team management and Mentoring experience is required.
Responsibilities:
- Build components and modules using React.
- Building the core front-end infrastructure, design systems, and libraries.
- Convert Figma designs into reusable front-end components.
- Translation of designs and wireframes into high-quality code.
- Collaborate closely with designers, engineers, founders, and product managers.
- Take ownership of products and features & releases, Should be able to mentor junior developers, Code reviews, Feature Review & Allocation of tasks.
Must-Have Skills:
- 4-6 years of production experience with React JS and associated tooling (Redux, React-query, Indexed-db, Material-UI)
- 3+ years of Typescript experience, including asynchronous programming, closures, types, and ES6/ES7.
- Thorough understanding of React.js and its core principles, including virtual DOM, data binding, State & Props and React Lifecycle and Redux.
- Experience with front-end technologies such as HTML5, JSS, CSS etc.
- Experience consuming and transforming internal and 3rd party API's using REST
- Experience with code quality and reusability practices (eslint, prettier, CI/CD for front-end repos)
- Knowledge of cross-browser compatibilities, responsiveness, and web accessibility standards.
- Good experience of Front-end/React best practices, code reviews, design documentation, debugging, troubleshooting, and agile development
- Communication: You like discussing a plan upfront, welcome collaboration, and are an excellent verbal and written communicator.
- Good to have If you have implemented complex features like authentication/authorization, I18N, logging, security, and testing into developer boilerplates to minimize production errors.
Qualifications:
- Bachelor’s degree in Computer Science or equivalent experience.
If you are passionate about solving problems and have the required qualifications, we want to hear from you! You must be an excellent verbal and written communicator, enjoy collaborating with others, and welcome discussing a plan upfront. We offer a competitive salary, flexible work hours, and a dynamic work environment.
Apply now and join our team of skilled professionals!
If this role interests you, kindly apply on below link & also review JD & company details:
Must-haves:
1. You need to be excited about the problem that we are trying to solve
2. 2+ years of experience building applications in React Native
3. Build pixel-perfect, buttery smooth UIs across both mobile platforms.
4. Strong JS fundamentals
5. Experience with iOS or Native Android development experience
6. Ability to give clarity and communicate well with the team, including
Product, Backend and Dev-Ops (if and when needed)
7. Ability to use profiling tools well, getting to root causes of bugs fast
8. Ability to pick and work on adjacent technologies if and when
required (Eg: If the best performance monitoring solution needs a
basic firebase setup, that should not be a blocker for you to go ahead
and do so)
9. Maintain code and write unit tests to ensure the product is of the
highest quality.
10. Reach out to the open-source community to encourage and help
implement mission-critical software fixes—React Native moves fast.
11. You need to be comfortable working in a remote environment (Good
internet connection and availability on phone is required)
12. Keen to learn!
Good to have:
1. Experience with React.js
2. Experience in Test Driven Development
3. Ability to tell Product what creates better User Experience, ability to
tell backend what API responses will help the user get a faster load
time
4. Inquisitiveness to understand the system as a whole, and not only be
stuck to your domain of expertise (Eg: Asking questions like why
does this particular response take so much time as compared to
others, and brainstorming with the backend engineer on how to
improve on it
- About Team Sequoia
An Engineer’s Life @ SequoiaAT
As an Engineer, SequoiaAT will be a dream job for you. You will have opportunity to work on technologies and product before they hit the market and get popular. If working on a gadget you may get to own one of them as an early tester. Working with us we have a be your own boss culture so you will have plenty of opportunities to interact directly with our customers and their customer. Our goals just do not end there, we want to work with you on your personal development goals and ensure that you meet them.
Is it right job for you
If you are passionate and through about what you have been doing and willing to learn daily, then you will fit in very well. You should also have the ability to freely and clearly communicate your ideas or thoughts to succeed at SequoiaAT
What Technology Skills is required for this ?
Experience in design and development of frontend application using ReactJS framework.
Expertise in designing responsive UI screens using HTML, CSS, bootstrap framework and JavaScript.
Being up to date on the latest practices is a must, e.g., HTML5, CSS3, and ECMAScript 6 (minimum).
Knowledge in identifying & integrating the right frontend libraries for the various UI components that needs to be designed.
Expertise in back-end REST API development using Python.
Knowledge of working on frameworks like Django would be good.
Good practical knowledge in design and management of database structures.
Experience in MySQL / PostgresQL databases is a must.
Basic knowledge in non-relational databases like NoSQL / MongoDB / DyanamoDB etc. would be added advantage.
Cloud Server management and deployment of the developed application in cloud environment like AWS / Google Cloud / Microsoft Azure is desirable.
Preferably AWSExperience in test driven development would be given more preference.
Should have the flare for writing clean and well documented code.
Knowledge of repository maintenance using SVN / Git. Ability / Willingness to work in Agile environment.
Responsibilities Design and implementation of the overall web architecture “Pixel-perfect” implementation of the approved user interface.
Design and deployment of appropriate database structure.
Ensuring the entire stack is designed and built for speed and scalability.
Design and construction of REST API Integrating the front-end UI with the constructed API.
Design and implementation of continuous integration and deployment.
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 using React.js concepts. You will also be responsible for profiling and improving front-end performance and documenting our front-end codebase.
React.js Developer 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 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.
React.js Developer Requirements:
- 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.
- Experience with browser-based debugging and performance testing software.
- Excellent troubleshooting skills.
- Good project management skills.

• Sound knowledge in JavaScript, ReactJS, HTML, CSS
• Familiar with UI layouts, SASS, bootstrap, and Material UI
• Experience debugging using popular JavaScript-based tools like Chrome Developer Console
• Good to have Knowledge of TDD frameworks mocha, chai, jest etc.
• Understanding of Typescript
• Understanding of ReactJS based frameworks like NextJS, Gatsby, etc.
• Understanding of REST API
• Passionate to create good design and usability
• Immediate Joiner preferred
We are looking for a senior React.js developer who can guide the current team and also work on our project. The requirement could be for 3-4 months or at max 6 months. Hence a full-time remote consultant is preferred with about 4-5 years of experience in React.
This position is for a ReactJS developer. Since we are a start-up this position will have a lot of exposure to other verticals such as product management as well. There is no limit to learning for a person who is willing to take responsibility.
- 2-5 experience of working with SPA
- Highly skilled at front-end engineering using Object-Oriented JavaScript (ES5, ES6), various JavaScript libraries and frameworks (ReactJS), HTML and CSS
- Experience with Asynchronous and Futures (Promises) Design Patterns
- Proficient understanding of code versioning tools, such as Git
- Experience in developing Large-scale, Single-Page Applications (SPAs) and Unit Testing
- Good understanding of browser rendering behavior and performance
- Proficient understanding of cross-browser compatibility issues and ways to work around such issues
Good to have: Optional
- Working with Secure APIs using JWT/OAUTH
Your role and our tech stack
Reporting to the founder, you will be expected to develop, deploy and oversee the execution of the tech strategy, product road-map and operations to ensure alignment with our businesses goals as we grow and scale. You will play a key part in the organisation's success, taking the current MVP and developing it further to move the company through to early stage funding and into profit.
Quesst's is built using React.js [Frontend], Node.js [Backend], PostgreSQL [DB], Amazon EC2 [Application Hosting], Amazon S3 [Media Storage Service], and Amazon SES [Email Sending Service]. You will be responsible for implementing full-stack features and collaborate with other team members to plan each sprint. You’ll be working across the entire system architecture and be responsible for designing, implementing and maintaining restful APIs, micro-services and databases.










