
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

About Stunner Technologies Pvt Ltd
About
Similar jobs
Ideal Candidate
8+ years of experience in front-end development, with at least 3–5 years in technical/architectural leadership roles across web and mobile platforms.
Expert in React.js and React Native, with hands-on experience designing and building scalable, modular applications using modern front-end frameworks and reusable component libraries.
Strong geospatial capabilities—proven experience integrating and optimizing mapping solutions (e.g., Google Maps, HERE Maps) with features like routing, clustering, and overlays.
Mobile-first mindset, with deep knowledge of responsive UI design, performance optimization for low-bandwidth environments, and cross-platform compatibility.
Architectural expertise in modular design, micro-frontends, SSR/SSG, PWAs, and cross-platform solutions—ideally with experience in monorepo environments and BFF patterns.
Technical leadership skills, including mentoring developers, enforcing best practices, driving autonomous development, and aligning technical solutions with business needs.
CI/CD & DevOps familiarity—strong understanding of build tools (Webpack, Vite, Metro), containerization (Docker), and deployment automation using Jenkins, GitLab CI, etc.
Security, accessibility, and testing focus—capable of implementing WCAG-compliant UIs, secure data handling, and robust test strategies using tools like Jest, Cypress, Detox, and Appium
🔴Profile: React Native Developer
🔷 Experience- 2+ Years
🔷 Location- Mumbai, Andheri East
🔷 Mode- 5 Days WFO
(Only immediate joiners & candidates who have completed notice period)
✨ What we want:
✅ 2+ years React Native experience
✅ JavaScript, JSX & mobile development
✅ React Hooks & component lifecycle
✅ Native module integration (iOS/Android)
✅ State management (Redux/Context API)
✅ REST APIs & third-party integrations
✅ Navigation libraries (React Navigation)
✅ Mobile UI/UX best practices
✅ Testing frameworks (Jest, Detox)
✅ Mumbai, Andheri East based candidates only
No relocation cases - candidate should be present in Mumbai
About us:
HappyFox is a software-as-a-service (SaaS) support platform. We offer an enterprise-grade help desk ticketing system and intuitively designed live chat software.
We serve over 12,000 companies in 70+ countries. HappyFox is used by companies that span across education, media, e-commerce, retail, information technology, manufacturing, non-profit, government and many other verticals that have an internal or external support function.
To know more, Visit! - https://www.happyfox.com/
What you can expect as a Senior Frontend Engineer at HappyFox:
- You will consistently ship features and improvements with minimal guidance and support from other team members.
- You’ll work alongside the Product, Design, and, Backend Engineering teams to iterate on new features within HappyFox products.
- You will advocate for improvements to product quality, security, and performance.
- You will solve technical problems of high scope and complexity.
- You will craft code that meets our internal standards for style, maintainability, and best practices for a high-scale web environment.
- You will maintain and advocate for these standards through code review.
- You will recognize inefficiencies in our team, and propose solutions.
You should apply if:
- You have 5+ years of relevant professional experience in building web applications with javascript frameworks like Ember.js or React.js.
- You have a sound knowledge of HTML, CSS, and JavaScript.
- You can clearly and concisely communicate complex technical, architectural, and/or organizational problems and propose thorough, iterative solutions.
- You are comfortable working in a highly agile, intensely iterative software development process.
- You have demonstrated the ability to onboard and integrate with an organization long-term.
- You have a positive and solution-oriented mindset.
- You have experience owning a project from concept to production, including proposal, discussion, and execution.
- You are self-motivated and self-managing, with strong organizational skills.
Responsibilities:
Experience in State management (Redux, ngrx/ngxs etc) is an advantage
Experience in Testing frameworks is an advantage
Experience building real time applications is an advantage
Experience using memoization is an advantage
Design and implement Angular applications for end users
Build reusable code and libraries for future use
Ensure the best efficiency and responsiveness of website
Identify and fix bugs in the website
Help to maintain the code quality
Work along with the backend team for seamless integration with APIs
- 3-4 years of experience in IT with 3 +minimum years of experience in React Development
- 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, 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.
- Solid analytical and problem-solving skills.
- Strong interpersonal, written and verbal communication skills.
- Experience with gathering user requirements and understanding and interpreting requirements specifications
- Experience with full System Development Life Cycle is a plus
- Maintain time reporting on projects and provide timely updates to project milestones.
Key Skills:
o Determining the structure and design of web pages.
o Ensuring user experience determines design choices.
o Developing features to enhance the user experience.
o Striking a balance between functional and aesthetic design.
o Ensuring web design is optimized for smartphones.
o Building reusable code for future use.
o Optimizing web pages for maximum speed and scalability.
o Utilizing a variety of markup languages to write web pages.
o Maintaining brand consistency throughout the design.
o Understanding of key design principles.
o Experience with Angular and React.
o Proficiency in HTML, CSS, JavaScript, and jQuery.
o Understanding of server-side CSS.
o Experience with responsive and adaptive design.
o Understanding of SEO principles.
o Good problem-solving skills.
• Good to have skills:
o Knowledge of additional framework like ViewJS and NodeJS is a big plus.
o Knowledge of PHP - object orientated concepts and frameworks such as Laravel or
CodeIgniter.
o MySQL concepts
o Understanding accessibility and security compliance
● Design, build and maintain efficient, understandable, reusable, testable, and simple code
with a focus on stability, performance, and scalability.
● Building end-to-end product features from writing backend business logic, API services,
building administration dashboards, and implementing front-end pages/components.
● Being part of cross-team technical initiatives, bringing in new tools and technologies to
improve and optimize the existing platform and code.
● Be a mentor when you have the expertise / Be a student when someone else does.
Preferred Skills:
● Proven work experience as a Front-end developer with React.js.
● In-depth knowledge of JavaScript, CSS, HTML, jQuery, and front-end languages
● Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, Flux, etc.
● Familiarity with browser testing and debugging
● Understanding of layout aesthetics
● In-depth understanding of the entire web development process (design, development, and deployment)
● Knowledge of backend frameworks such as Ruby on Rails, Django. Experience with Ruby on Rails is a plus.
● Knowledge in Linux environment and basic Linux commands.
● Good understanding of SQL Databases and NoSQL datastores; with previous experience with MySQL and ElasticSearch being a bonus
● Great communication, particularly in explaining your coding processes, suggestions for best practices, and identifying ways to improve the team's coding quality.
● A high-performance mindset to deliver good quality code and also an understanding of the product with keen attention to detail.
We are hiring : ReactJS Developer
Experience: 1 - 3 years
Location: Gurgaon
Roles and Responsibilities
- Experience in developing large scale, highly available, complex front-end development using JavaScript, React.js and ReactNative.
- Strong knowledge in both web and mobile application development.
- Knowledge, skills, and experience to write detailed design documentation, and functional specifications for application development.
- Write well designed, efficient, reusable, and reliable code.
- Experience with popular React.js workflows (such as Flux or Redux).
- Work with other senior Developers to resolve/debug program errors.
- Knowledge and ability to apply OOD (Java, HTML, XML, Java Script, and Patterns) and impact to the application development process.
- Knowledge of Agile development methodologies (preferably Scrum).
- Knowledge of database design and data structure libraries,(e.g., Immutable.js).
- Developing new user-facing features using React.js.
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.
- Actively aid the consulting team in different phases of the project including problem definition, effort estimation, diagnosis, solution generation, design development and deployment.
- Experience with data structure libraries,(e.g, Immutable.js).
- Contributing to team meetings, troubleshooting development.
- Good understanding of HTML CSS and front-end design technologies.
Desired Candidate Profile
- Ability to establish and maintain effective working relationships, supporting company leadership and other team members.
- Ability to manage multiple and changing priorities/tasks.
- Must like to continuously improve code, product and process.
- Must work with a strong professional and ownership mindset.
- Strong working experience in JavaScript, ReactNative and ReactJs is required.
- In-depth understanding of Javascript, the DOM, and relevant concepts.
- Proficiency in Typescript.
- Should have hands-on experience with testing libraries like jest & enzyme.
- Must be strong in logic and coding abilities.
- Strong analytical and problem-solving skills.
- Must be passionate and self-motivated.
- Excellent team player and good communication skills.
Key Skills
JavaScript, React.Js, ReactNative, Frontend Web Development, HTML, CSS, Redux, DOM, Flux, Data Structure, Web Technologies, Mobile Application Development.










