React developer at Wissen Technology · Bengaluru (Bangalore) · 5 - 8 years · ₹10L - ₹25L / yr · Profitable · Posted 14 Oct 2025

Job Summary:
We are seeking a highly skilled and hands-on UI Developer with strong expertise in React.js and JavaScript to join our front-end engineering team. The ideal candidate will have at least 5 years of experience in developing scalable, high-performance, and user-centric web applications. You will be expected to contribute immediately, owning development tasks end-to-end — from design and coding to performance tuning and deployment.
Key Responsibilities:
- Design and develop responsive, high-quality user interfaces using React.js, JavaScript, HTML5, and CSS3.
- Collaborate closely with UX designers, backend developers, and product managers to translate business requirements into technical implementations.
- Write clean, efficient, and reusable code following best practices and modern front-end standards.
- Optimize components for maximum performance and scalability across various browsers and devices.
- Participate in code reviews, ensuring adherence to coding standards and best practices.
- Troubleshoot, debug, and resolve UI-related performance or compatibility issues.
- Stay up to date with emerging front-end technologies and continuously enhance the development process.
Required Skills & Qualifications:
- Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
- 5+ years of professional experience in front-end/UI development.
- Deep hands-on experience with React.js and core JavaScript (ES6+).
- Strong understanding of HTML5, CSS3, and modern UI frameworks/libraries.
- Experience with React hooks, state management (Redux or Context API), and component-based architecture.
- Familiarity with RESTful APIs and integration of front-end applications with backend services.
- Experience with Webpack, Babel, NPM/Yarn, and modern build tools.
- Solid understanding of version control systems (Git).
- Strong debugging and performance optimization skills.
- Ability to deliver results in a fast-paced, agile environment.
Good to Have Skills:
- Experience with TypeScript, Next.js, or React Native.
- Knowledge of testing frameworks such as Jest, Mocha, or React Testing Library.
- Familiarity with CI/CD pipelines and DevOps tools.
- Understanding of UI/UX design principles and ability to collaborate effectively with designers.
- Exposure to cloud environments (AWS, Azure, or GCP).
- Experience in performance profiling and accessibility (a11y) best practices

About Wissen Technology
About
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
Connect with the team
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Exp: 3 - 6yrs
Notice period : Immediate - Max 60 days
Job Location : Gurgaon
Experience with client side Web technologies/frameworks such as Angular.js 1.x, React.js, Backbone, KnockoutJS, Bootstrap Experience with AngularJS 2+ is a strong plus.
Strong understanding of Web markup with HTML(5) and CSS(3) is a strong plus.
Ability to write high-performance, reusable code for UI components Build and support scalable, re-usable software Ability to work independently and within a team environment
Good written and verbal communication skills Solid understanding of cross-browser/platform consistency and compatibility Experience with frameworks such as jQuery Mobile, ReactNative, Appcelerator, Mootools, Kendo UI, Sencha Touch and ActionScript is a plus
Experience with Node.js, Bower, Yeoman, Gulp etc. is a plus Basic understanding of server-side CSS pre-processing platforms, such as LESS and SASS is a plus Proficient understanding of code versioning tools, such as SVN and Git is mandatory.
Job Description:
We are seeking a talented and experienced React Developer to join our dynamic team. As a React Developer, you will be responsible for designing, implementing, and maintaining user interfaces for our web applications. The ideal candidate is passionate about front-end development, has expertise in React.js, and is well-versed in related technologies such as Redux Toolkit, Redux Saga, MUI (Material-UI), and TypeScript.
Key Responsibilities:
- Develop robust and responsive user interfaces using React.js and related technologies.
- Implement state management with Redux Toolkit and handle asynchronous operations efficiently using Redux Saga.
- Utilize MUI (Material-UI) to create visually appealing and user-friendly components.
- Design and implement custom hooks to enhance code modularity and maintainability.
- Implement OAuth-flow and JWT for secure and seamless user authentication.
- Work with JSON data and integrate external services using Amplify.
- Ensure responsive design principles are applied to deliver an optimal user experience across devices.
- Collaborate closely with cross-functional teams, including UI/UX designers and back-end developers.
- Adhere to coding standards such as Airbnb and use ESLint for consistent code quality.
- Demonstrate strong logical thinking and problem-solving skills in the development process.
- Contribute to the continuous improvement of development processes and best practices.
Key Skills:
- Proficiency in React.js and a solid understanding of its core principles.
- Experience with state management using Redux Toolkit and handling asynchronous operations with Redux Saga.
- Familiarity with MUI (Material-UI) for creating modern and responsive user interfaces.
- Expertise in designing and implementing custom hooks for code modularity.
- Knowledge of OAuth-flow, JWT, and secure authentication practices.
- Experience working with JSON data and integrating external services using Amplify.
- Solid understanding of TypeScript for type-safe React applications.
- Strong command of JavaScript, including ES6+ features.
- Experience with responsive design principles for optimal user experience across devices.
- Adherence to coding standards such as Airbnb and proficiency in using ESLint for code consistency.
- Strong logical thinking and problem-solving skills.
If you are a proactive React Developer with a passion for crafting exceptional user experiences and possess the skills outlined above, we encourage you to apply. Join our team and be a key player in the development of innovative and impactful web applications.
Skills: In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
Knowledge of REACT tools including React.js, Redux, Mongo DB,Node.JS
Experience with browser-based debugging and performance testing software.
Work From office only
Job Description
It is a platform for parents to find and book kids' activity classes in their neighbourhood.
We are currently hiring a Frontend developer for a startup in the B2C marketplace space based out of Mumbai. This startup is an Online Marketplace, that serves as a Discovery and Booking Platform for Kids’ Activity Classes. Operations were launched in November 2019, and have over 20KParents and 500+ educators listed on our Platform across the major Tier-I and Tier-II cities in India.
Platform details are listed below :
- A SaaS platform for educators to simplify the management of their classes and workshops.
- Educators get access to a dashboard and use our Class Management tool to create listings, view registrations, manage bookings and payments.
- The dashboard also provides analytics for teachers to track visitor traffic, see drop offs and understand which social media channel generates maximum ROI for them.
- Discovery & Booking Platform for parents so that they can search, view and book classes and workshops for their children.
Top 2 role must have’s
- You should have REACT JS experience of building a product
- You should be willing to work in a very early stage startup
Tech skills required for this role:
- Front end design in REACT JS at least 1.5 years
- AWS server
- Mongo Database
- API's written in Nodejs
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 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.
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.
1. Strong knowledge in Front end scripting like EJS, JavaScript, Jquery
2. Proficiency with fundamental front-end languages such as HTML, CSS.
3. Familiarity with JavaScript frameworks such as Angular JS, React, and Amber.
4. Proficiency with server-side languages such as Python / Ruby / Java / PHP/ .Net
5. Good Understand with database technology such as MySQL, Oracle, and MongoDB.
Senior Front End Engineer (React.js & React Native - Mobile Experience)
Job description
Fulfil’s software engineers develop the next-generation technologies that change how millions of customer orders are fulfilled by merchants. Our products need to handle information at a massive scale. We're looking for engineers who bring fresh ideas from all areas into our technology.
As a Front End software engineer, you will work on the ReactJS & React Native (Mobile Experience) powered user interface used by Fulfil merchants to manage their back-office operations. This is mission critical software and your primary focus will be on developing user interface components and implementing them following well-known React.js workflows (such as Flux or Redux) & React Native (Mobile Experience). You will ensure that these components and the overall application are robust and easy to maintain. In this role, you will be collaborating closely with the rest of the team working on different layers of infrastructure in an international environment. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality are important.
What You’ll Do:
- Collaborate with a small yet extraordinarily talented team of engineers to implement front-end technologies
- Develop new user-facing features using React.js & React Native (Mobile Experience)
- Work closely with the Design and Product teams to translate complex technical workflows into delightful user experiences
- Define how Fulfil builds user interfaces and ensure that we’re utilizing and keeping up with modern web standards
- Continually test, measure, and iterate on the results of your work in the spirit of continuous improvement
- Write clean, reusable, and well-tested front-end code
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- Build and contribute to open source projects
- Build reusable components and front-end libraries for future use
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Requirements
We’re Looking for Someone With:
- 5+ years of experience as an engineer
- Experience in building large-scale web applications in a fast-moving team environment
- A strong understanding of UX and UI design standards
- The perfectionist’s touch on a pragmatist’s deadline: you strive for pixel-perfection and intuitive functionality
- Strong proficiency in JavaScript (2-4 Years of experience), including DOM manipulation and the JavaScript object model
- Thorough understanding of React.js & React Native (Mobile Experience) and its core principles, with experience in popular React.js workflows (such as Flux or Redux)
- Experience with common front-end development tools such as Babel, Webpack, NPM, etc
- The ability to bring any design to life with HTML and CSS, with cross browser compatibility and accessibility
- Smarts, humility, communication skills, and equal willingness to teach and learn
- Familiarity with RESTful and GraphQL APIs
- Knowledge of modern authorization mechanisms, such as JSON Web Token
- Experience in developing large client side JavaScript applications
- Familiarity with code versioning tools like GIT
- Experience with Javascript testing tools and test automation
Nice to Haves:
- Prior experience at a growth stage Internet/Software company
- Demonstrated work beyond the front-end, experienced in integrating with a wide array of back-end technologies and services (e.g. experience with Python, AngularJS)
- Experience developing large client-side applications and optimizing them for performance
- You can straddle client and server development, creating APIs that drive web apps
- You understand the intricacies of timezones
- Web optimization, performance tools, and load testing
- You maintain or contribute to an open-source project
Mentor To Go is an android and web based platform to help students improve their work readiness through self-learning sessions, personalised mentorship provided by mentor professionals from a range of careers, and work experience opportunities.
The technology platform implements functionalities such as: screening surveys of mentors and mentees, training content for mentors, matching through an algorithm, and mentorship through the delivery of structured activities.
The application technology architecture comprises of the following:
o a Python Django web application with NGinx and Gunicorn
o PostgreSQL database
o A React Android and Web app
o Rest APIs which interact between the Android app and the Django webserver
Our vision at Mentor To Go is to provide career mentorship to young people anywhere, anytime across the length and breadth of India.
We are looking for a frontend software developer who is passionate about using web technologies to solve social problems and creating experiences that are elegant and effective. You will own the front end development of features of the Mentor To Go web and mobile platforms, from conceptualisation through design and testing. You will work closely with other developers,the technical project manager, and the program operations team. You are user-centric, continuously demonstrate strategic & analytical abilities, and are laser focused on executing at speed. You must have the ability to succeed in a fast paced environment, where success is dependent on your ability to collaborate with cross-functional team members in a positive, productive, and transparent way.
Minimum requirements
- Bachelor’s degree in engineering preferably CS or related discipline
- 3+ years experience with the development of applications for Android, iOS and web preferably using React Native/ReactJS
- Experience working in Unix/Linux environments
- Experience with a complete mobile software development life cycle
- Strong written and oral communication skills
- Familiarity with version control software such as Git
Desired requirements
- Strong written and oral communication skills
- Ability to participate in technical discussions and help make technical trade-offs
About Mentor Together
https://mentortogether.org/">Mentor Together is India’s first and largest youth mentoring non-profit organization with a mission to facilitate empowering mentoring relationships and networks that help young people break the inequalities of opportunity and actualise their potential.
http://bit.ly/mentortogo">Mentor To Go is the world’s first mobile mentoring platform created by Mentor Together with the support of Cisco India, LinkedIn Social Impact, British Telecom and Sterlite Technologies.







