
- Expertise of UI framework - React/Redux, RXJS
- Experience with React Native is preferred
- Preferred experience with new generation of Web Programming - using Micro Service, REST/JSON, Component UI models
- Expertise with data visualization flow development along with usage of modern charting and graphical java script library
- Preferred experience with AWS RedShift or Postgress
- React/Redux, RXJS, HTML, CSS, Javascript (ES5, ES6), Data visualization and Chart Libraries

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React Developer+Basic Understanding In Angular (Immediate Joiner)
Location: Bangalore
Experience: 3+ Years
About the Role:
We are looking for a skilled React Developer with 3+ years of experience to join our team immediately. The ideal candidate should have strong expertise in React.js along with a basic understanding of Angular. You will be responsible for developing user interface components and implementing them following well-known React workflows.
Key Responsibilities:
- Develop and maintain responsive web applications using React.js
- Build reusable components and front-end libraries for future use
- Translate UI/UX designs into high-quality code
- Optimize applications for maximum performance across devices and browsers
- Collaborate with backend developers and cross-functional teams
- Participate in code reviews and ensure best practices are followed
- Assist in debugging and resolving technical issues
- Work on minor enhancements or support tasks in Angular-based modules (if required)
Required Skills & Qualifications:
- 3+ years of hands-on experience in React.js development
- Strong proficiency in JavaScript, HTML5, CSS3
- Experience with state management libraries (Redux / Context API)
- Familiarity with RESTful APIs and integration
- Basic knowledge or exposure to Angular
- Understanding of responsive design and cross-browser compatibility
- Good problem-solving and communication skills
Preferred Skills:
- Experience with TypeScript
- Knowledge of modern front-end build pipelines and tools (Webpack, Babel, etc.)
- Familiarity with version control systems like Git
Joining Requirement:
- Immediate joiners or candidates with short notice period (0–15 days) preferred
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
It is an app platform (Android & iOS) that offers discovery, trials and purchase of lifestyle brands across multiple categories like beauty and grooming, food and beverages, health and wellness, fragrances, smart technology, accessories, services and experiences targeted towards the upper middle class.
What shall be expected of you:
● Be responsible for the core UI framework, and implement and maintain it.
● Responsible for the development of the front-end applications and
components.
● Coordinate with the backend engineers & designers for requirement
gathering of the product.
● Responsible for quality assurance including web usability, accessibility,
testing and debugging.
● Build reusable code and libraries for future use.
You must have:
● 2-5 years of prior hands-on experience in building responsive web
interfaces for consumers.
● Strong development experience in the following technologies (HTML,
CSS, Javascript, AJAX, working with REST APIs)
● Front end frameworks/libraries such as ReactJS, and Redux.
● Ability to translate product requirements into functional code.
● Ability to estimate the scope of work for sprint planning.
● Self-motivation and ability to work in a small team with minimal
supervision.
Would be awesome if you are also good at:
● SEO and page speed optimization.
● Web standards, Responsive design, and cross-browser compatibility,
Accessibility.
● Additional web technologies like Angular, Vue JS, Next JS etc.
● Must be fluent in writing code in ES6+ along with linters. ● CSS
preprocessor - SCSS/ LESS

Role : Angular Developer
Location: Bangalore, Karnataka, India
Experience: 3 to 9 Years
Mandatory Skills: Angular,Data structure,Javascript with OOPS, API
Experience:
- Very strong hands on experience of web and mobile technologies: - HTML JavaScript, HTML5/CSS3,
- 5 + years of UI Development Experience using JavaScript Frameworks
- 3+ years of Angular Development Experience
- Has implemented coding patterns and built UI framework
- Deep knowledge of AngularJS practices and commonly used modules based on extensive work experience
- Thorough understanding of the responsibilities of the platform, database, API, caching layer, proxies, and other web services used in the system
- Creating custom, general use modules and components which extend the elements and modules of core AngularJS
- Creating configuration, build, and test scripts for Continuous Integration environments
- Cooperating with the back-end developer in the process of building the RESTful API
- Cross browsers support/experience and knowledge of DOM manipulation on different browsers
- Performance enhancements on web page load and execution
- Use responsive web design to create applications that automatically conform to multiple screen sizes/devices.
Responsibility:
- Ability to develop UI framework on JavaScript and CSS which confines to requirement of Solutions.
- Ability to work on cross browser compatibility
- Develop reusable components.
- Work closely with other developers in the team
- Coordinating the workflow between the graphic designer, the HTML coder, and yourself
- Conduct usability testing to identify and fix UI issues
- Collaborate with business analysts to discuss user interface requirements and brainstorm UI ideas.
About the company:
It is a leading US-Based product development company established in 2004.
A global leader in providing digital solutions for trading and risk, supply chain management and financial services driven by cloud, blockchain, machine learning and analytics. The company has its best-of-breed solutions serve the entire trading value chain across agriculture, energy, metals and mining, and manufacturing markets. The cloud platform provides advanced analytics, one source of data and an automation engine, providing maximum flexibility and investment protection as business needs and market requirements change.
Why should you apply?
- Work in a fast-paced product-based organization.
- Get an opportunity to work with the core development team and enhance your technical skills.
- Scope to understand and work with the product team in depth.
- Opportunity to work in ETRM/CTRM domain- ahead of the innovation.
- They built a culture of inclusion and diversity from the 16 plus languages they speak to the 40% strong women workforce.
- They are always looking for their next set of passionate and innovative minds, who are unafraid to challenge the status quo.
We're looking for a React Developer to join our growing frontend team.
As a React Developer, you will help develop the next generation of our apps using tools such as React.js, Redux, Saga, Thunk and Webpack. You should be familiar with React and its ecosystem. Past experience with a React codebase is a requirement.
We're looking for someone who is comfortable with a fast-moving environment and can learn quickly.
Responsibilities
- Develop new components and features for our frontend app(s)
- Write, audit, and improve our test coverage
- Document and refactor our frontend codebase
- Profile and improve our frontend performance
- Write about your work and contribute back to open source
Requirements
While these requirements are a guideline, feel free to apply even if you don't meet some of these.
- 3+ years’ experience working with a Javascript framework, preferably React
- In-depth understanding of Javascript, the DOM, and relevant concepts
- In-depth understanding of Redux/React Hooks/Saga/Thunk
- Proficiency with browser based debugging and performance testing
- Understanding of progressive web apps
- Experience with a testing framework (Jest/Mocha)
- Experience using Git
- Excellent communication skills, both written and verbal
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.
Experience : 4 to 7 Years
TECHNICAL SKILLSET
- You have strong experience with semantic HTML5, CSS3, and a CSS preprocessor of your choice SASS or LESS, understanding of writing modular CSS (Must)
- You have strong knowledge of Object Oriented JavaScript (Must)
- You have strong experience with React.js(must) or any other frameworks like Ember, Backbone
- You have working experience with large scale front-end architectures
- You have good knowledge in using restful web services
- You have a strong focus on performance
- You have knowledge of CSS animations
- You have experience with automation tools like Web-pack, Grunt or Gulp
- You have knowledge of unit testing tools like Jasmine, Karma etc.
Job Role :
- As a Frontend Developer you will be responsible for extending and optimizing product user interfaces. You will work in a team of developers and designers to build cutting edge, graphical appealing user interfaces that provide a great user experience
- Develop web applications using various JavaScript frameworks
- Have attention to detail and identify potential performance weak spots
- Find and share frontend best-practices with team members and other developers
- You will be actively involved during the entire technology development lifecycle.
- Responsibilities will include all aspects from design, coding, testing, customer feedback cycle changes and support.
- Work with a team of amazing developers and designers involved in the design and development of global platforms, participate in Agile sprints
- Invent and prototype new features, build, test and ship them to customers as SaaS, cloud based or hosted product platforms
- You will be working on one of the fastest growing e-Commerce platforms in exciting application areas like core commerce, supply chain, logistics and fulfilment, merchant and offline to Online, mobile commerce, analytics, automation, DevOps and a lot more for the global markets positioned for Asia.
- Participate in a fun, open learning environment with great benefits and smart talented folks that represent among the best globally.
Qualification
- A Bachelor's degree in Computer Science or equivalent
Quinbay is an upstart digital platforms and products company with a core focus on disrupting traditional markets and business models with the strength of our innovation driven digital value. We harness the power of our open innovation culture, our unique talent selection approach, the skills and expertise of our people across various industries, domains and technologies and a unique blend of analytics driven strategies for creating future digital platforms.
OPPORTUNITIES : Pursue opportunities in and learning/growth interests in Mobile, product development, product management, Analytics, Machine learning, UI/UX design, DevOps, Automation, Drones, bots and Java / open source development frameworks and methodologies - on a variety of domains like eCommerce, Logistics and fulfilment, Mcommerce and a whole lot others.
Opportunities to be part of fastest growing eCommerce platforms in exciting application areas like core commerce, supply chain, logistics and fulfilment, merchant, mobile commerce, analytics, automation and a lot more for the global markets positioned for Asia.
We do have opening with our company Crownstack Technologies for React.Js Developer. Interested candidate can share their CV.
About us
Crownstack is a premium organisation that specializes in providing innovative digital technology solutions to various enterprises including startups, small and medium-sized businesses and Fortune 500 companies across the globe. Our services include, but are not limited to, UI design, mobile app and web development, Cloud computing, data analytics, and Dev Ops. We take pride in our ingenious, meticulous, and skilled workforce who aim to deliver sustainable and cutting-edge business and technology solutions to all our clients. ★ 100+ Successful Apps Delivered | ★ Enterprise and Startup Clients | ★ Scalable Products | ★ MEAN Stack | ★ Python, pHp, NodeJs | ★ Agile Development | ★ Best UI/UX Award
Job Description
Crownstack is looking for ReactJs Developers to join our team and deliver a streamlined user experience. We want a team member who strives to develop a first-class codebase using ReactJs best practices. As a React Developer, you will implement a complete user interface across our mobile and desktop web interfaces.
Requirements
Job Location: Gurgaon/Noida
Experience: 2+ years
Roles and Responsibilities
- Develop user interfaces with the latest frontend technologies
- Research, analyze, and develop product features of increasingly complex nature
- Code tested and documented JavaScript, HTML, PUG and CSS
- Make design and technical decisions for ReactJs projects.
- Develop application code and unit testing in the ReactJs with REST APIs
- Ensure high performance of all systems developed
Skills and Qualifications
- 2+ years experience with ReactJs
- Strong expertise with HTML, CSS, and writing cross-browser compatible code.
- Experienced in Typescript is a plus
- Familiarity with testing frameworks (Ex. Enzyme)
- Experience in building highly reusable and decoupled components
- Experience in State management Libraries like Redux, mobx
- Critical thinking and problem-solving skills
- Good time-management skills
- Great interpersonal and communication skills








