React JS Developer

Position Overview: Front-End Developer (Next.js)

We are seeking an experienced Front-End Developer with strong hands-on expertise in Next.js and React.js. The ideal candidate will build and maintain scalable, responsive web applications using modern front-end technologies and best practices in performance, SEO, and rendering techniques.

Key Responsibilities

• Develop and maintain responsive, scalable web applications using React.js and Next.js
• Implement CSR, SSR, and SSG using Next.js best practices
• Build reusable, modular UI components following clean front-end architecture
• Integrate and manage REST APIs for data retrieval, caching, and error handling (React Query or similar)
• Optimize applications for performance, SEO, and accessibility
• Collaborate with backend engineers and UI/UX designers to deliver high-quality user interfaces
• Debug, test, and document code to ensure maintainability and scalability

Required Skills

• Strong knowledge of Next.js fundamentals (routing, rendering techniques, API routes)
• Proficiency with React Hooks and understanding of component lifecycle
• Solid experience integrating REST APIs and handling errors effectively
• Familiarity with state management libraries such as React Query, Redux, or Zustand
• Strong skills in JavaScript (ES6+), HTML5, and CSS3
• 7–10 years of front-end development experience

React.js, Java Script, Redux, React,React.js,Angular,Frontend Developer, UI Developer, Full Stack Developer

Role:

Senior Frontend Developer

Role Description:

Desired Experience Range 5+ years

Location: Mumbai / Work from Home

Work Experience:

Minimum 5+ years of professional experience in HTML, CSS, AngularJS

Requirements:

1. Must have hands on experience in AngularJS, NodeJS
2. Must have hands on experience in HTML 5, CSS 3
3. Must have hands on experience in developing responsive layouts
4. Must know how to test frontend layouts for various devices and resolutions
5. Must have hands on experience working with SCSS
6. Must have worked with Git
7. Understanding of SDLC process
8. Good to have knowledge of Jira

Key Responsibilites:

1. Converting layouts to HTML/CSS
2. Integrating the created HTML/CSS into the dynamic Slate platform
3. Consuming APIs in AngularJS
4. Setting up oAuth token exchange in AngularJS
5. Looking into any bug fixes post go live
6. Helping the junior developers

Reporting

Candidate will report to the Engineering Lead

What we want to accomplish and why we need you?

Haptik is one of the world's largest Conversational AI companies, having reached over 500 + million devices, and processed over 5 billion+ conversations till date. Haptik has been at the forefront of the paradigm shift of interaction from clicks to conversations. We have built a robust set of technology and tools that can enable any kind of conversational application. With a 400+ member strong team that is set to double in the coming year, Haptik is truly poised to lead the Conversational AI revolution with some of the best minds in the industry.

We are a full-stack conversational AI company from building products to delivering bots for our clients. We are looking for a front-end engineer who can help us build the next generation of enterprise-grade conversational AI platform.

What will you do every day?

As a front-end tech lead you will be responsible for building the Haptik platform which is used by people across the globe. You will be working closely with the product, design and platform team on a day to day basis and be responsible for the look and feel of the product. While you know how to work hard, you also know how to have fun at work and make friends with your colleagues.

Ok, you're sold, but what are we looking for in the perfect candidate?

- Have a keen eye for detail and passionate about UI and UX

- Has worked with a team of FE engineers to set tech processes and standards.

- Has experience in mentoring junior engineers.

- Have a solid understanding of front-end technologies especially React

- Build, maintain and gate-keep the platform tools

- Work closely with the PM and designers to deliver high-quality features

- Work closely with the backend engineers to understand the Interkat Platform and build for scale

- High-level estimating and scoping/breaking down of tasks

- Document features to make them easily understandable to clients

- Participate in code reviews, automated and functional testing, and other aspects of our quality assurance process

- Use and promote standard good coding practices

- Fully participate in a scrum-based, agile development team

- Maintain up-to-date knowledge of technology standards, industry trends, emerging technologies, and software development best practices

- Work experience around optimizing build artifacts and performance monitoring

- Following security standards when using cookies/others to store user information etc.

Requirements :

- 5+ years of experience working on React.js

- Prior experience of leading/mentoring a team is a plus

- Knowledge of flux and redux

- Must have extensive experience working on Javascript, HTML, CSS, animations and UI/UX principles.

- Knowledge of backend technologies is a plus

- Good attention to detail, pixel perfect designs

- Bachelor's Degree in computer science or equivalent

- Good Communication skills

- Hustler with the passion for writing good code

- Team player

- Must have experience in working in an agile environment, exposure to tools like Jira would be an added benefit.

Requirements is such a strong word. We don't necessarily expect to find a candidate that has done everything listed, but you should be able to make a credible case that you've done most of it and are ready for the challenge of adding some new things to your resume.

• Develop new user -facing features
• Build reusable code and libraries for future use
• Ensure the technical feasibility of UI/UX designs
• Optimize application for maximum speed and scalability
• Assure that all user input is validated before submitting to back-end
• 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.

• Bachelor’s degree in computer science, information technology, or a similar field.
• Minimum 2 years 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, Web pack, 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.
  
  About Haber
  At HABER, we are solving the challenges of tomorrow, today. We are bringing together the best minds in process, engineering, computing and chemistry to develop solutions to address some of the world’s toughest challenges – water and energy scarcity and sustainability. Over the past few years there has been an explosion in unstructured data across industry driven by affordable sensing technologies and adoption of analytical instrumentation. This sudden increase in data has resulted in industries spending significant amounts of time collecting, organizing and analysing content and very little time driving value with the data. HABER is focused on reversing this trend by helping our customers spend less time collecting and analysing data and more time using HABER’s platform to drive efficiency, identify issues before they happen and uncover hidden potential. Follow us on Twitter @haber_tech or LinkedIn at linkedin.com/company/haber-technologies or visit us at haberwater.com/careers
  
   

Job Description:

Design skills

Strong working knowledge on various design patterns such as MVC, MVVM, DDD and any custom/hybrid framework as designed by the Architects.
Strong uderstanding in building Single Page Application

Process skills

Built application leveraging Agile DevOps principles and Azure DevOps toolset as part of SCRUM team


Technical skills

• Strong coding and work experience in Front End coding using Angular 8, BackBone, Bootstrap.
• Should have experience on 3rd party tools like PDF.Js (Generate PDF), SheetJS (Export Excel sheet), HighCharts or CharJS (Generate Charts and Graph).
• Should have good understanding of web servers such as IIS and Front-end runtimes using Node.js/NPM.
• Strong debugging skills using browser based Front end application written in Angular 8
• Strong knowledge and understanding of data sharing medium using JSON, XML.
• Should have used IDE such as Visual Studio and Visual Studio Code for Front-end development.
• Create Unit test cases using Jasmine and have all critical flows covered.
• Understanding of MS Build and MS Test as part of Azure DevOps pipelines
• Ability to triage defects in QA, UAT and Production and provide fix with quick turn around time.

• 5+ years of building SPA web solutions using Angular 8 , BackBone, Bootstrap
• 5+ years building HTML5 complaint pages
• 3+ years of experience using TypeScript
• 3+ years of writing automated testing using Jamine or others
• 3+ years of using TFS for Build and automated testing
• 1+ years of experience using Security Assessment Tool like Fortify 360 or IBM APP Scan
• 1+ years of experience using code quality assessment tool like SonarQube
• 1+ years of experience using API Management tool like Swagger
• 1+ years of experience on APM tools like DynaTrace
• 1+ years leveraging Azure DevOps

• Understanding of cloud based deployment using containers is plus
• Understanding of JS frameworks like Vue or React is plus

We are looking to hire an experienced Frontend Developer with a very good grasp over Javascript and the capability to make responsive pages.
The candidate should have good knowledge of:
- Javascript 
- HTML & CSS

- Node js
- PWA 
- Electron JS platform.
- API Integration
Candidates having good logical skills are preferred.