
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).

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Wissen Technology is hiring for React Developers!
Required Experience & Qualifications:
- 2+ years of Javascript or Typescript experience
- 2+ years of experience with React.js, HTML, CSS, Javascript
- Experience of working with MongoDB.
- Experience of working with libraries like Mobx, React Native Paper, React Navigation. proper understanding of the component lifecycle, what happens behind the scenes when state changes occur, etc.
About Wissen Technology:
Website : www.wissen.com
Wissen Thought leadership : https://www.wissen.com/articles/
LinkedIn: https://www.linkedin.com/company/wissen-technology
• Design and code features for the website application as per the specifications provided by the Product and Design teams.
• Ship features in fast-moving agile sprints.
• Work closely with Backend, Product Design, and Product Management teams to brainstorm and chalk out details of features.
• Ability to build a feature from scratch & drive it to completion
Skills: Must have:
• Good understanding of Javascript and Clean architecture.
• Good understanding of asynchronous programming, callback, and closures.
• Strong experience with Javascript frontend framework/libraries like ReactJS
• Understanding of stateless application
• Good knowledge of CSS and its pre-processors like SASS/LESS
• Good understanding of server-side templates.
• Experience with creating cross-browser compatible web apps
• Should be Strong in MySql / Postgres database.
• Strong hold in Data structure and processing JSON
Good to have
• Basic knowledge of CI, CD
• Intermediate knowledge in any cloud services(AWS, GCP)
• Familiar with testing frameworks like Mocha, Cypress
Roles and Responsibilities
- Working with designers, product managers to collaboratively own the front-end layer at FalconBrick and deliver stellar end user experiences
- Building responsive and elegant mobile and desktop web UIs
- Test, debug and maintain the application software throughout the product lifecycle
- Architect, develop and maintain front-end libraries
Desired Candidate Profile
- You love working with JavaScript and are very familiar with JavaScript design patterns and can build fairly complex UI
- Have at least 2 years experience in development of responsive web/mobile applications using advanced JS and web technologies
- And with at least 1 year of experience building frontend UI with a framework like ReactJS
- Youre very comfortable in writing HTML and CSS and love designing beautiful webpages
- Have good communication skills, strong work ethics And are comfortable with agile, iterative development practices and code reviews
About Company: Spica Systems (https://spicasys.com )
Spica Systems is a Silicon Valley based start-up, established in 2019 and are recognized as experts in building products and providing R& DandSoftware Development services in wide range of leading-edge technologies such as LTE, 5G, Cloud Services (Public -AWS, AZURE, GCP, Private -Openstack) and Kubernetes. Ithasa highly scalable and secured 5G Packet Core Network, orchestrated by ML powered Kubernetes platform, which can be deployed in various multi cloud modealong with a test tool. Headquartered in San Jose, California, we have our R& D centre in Sector V, Salt Lake Kolkata.
- Looking for a Software developer who will work on the product's Web UI side
- Hands on and working experience with React JS
- Experience in WebUI using Javascript technology.
- Experience: 2-4 years of React development in a team environment
- In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
- Knowledge of REACT tools including React.js, Webpack, Redux.
- Experience with user interface design. Knowledge of performance testing frameworks including Mocha and Jest.
- Experience with browser-based debugging and performance testing software.
Education: Bachelors/Masters in Computer Science, IT or Mathematics or Engineering
Traits: Quick learner, open minded, willing to learn
We are looking for a React Native developer interested in building performant mobile apps on both the iOS and Android platforms. You will be responsible for architecting and building these applications, as well as coordinating with the teams responsible for other layers of the product infrastructure. Building a product is a highly collaborative effort, and as such, a strong team player with a commitment to perfection is required.
Responsibilities
- Build pixel-perfect, buttery smooth UIs across both mobile platforms.
- Leverage native APIs for deep integrations with both platforms.
- Diagnose and fix bugs and performance bottlenecks for performance that feels native.
- Reach out to the open source community to encourage and help implement mission-critical software fixes—React Native moves fast and often breaks things.
- Maintain code and write automated tests to ensure the product is of the highest quality.
- Transition existing React web apps to React Native.
Position Level: Product Engineer
Company Overview:
AskSid.ai is a 4 years old start-up based in Bangalore, is fast growing and cofounded by
two ex-Mindtree employees each with 20+ years of experience. We were rated the No1
emerging SaaS company in India and won the NASSCOM EMERGE 50- League of 10
awards in 2019. Also got rated as the most innovative AI company in India for 2020 by
CII and Accenture Ventures. As a growing company, we are looking for passionate
engineers who aspire to build world class technology products of internet scale.
Job purpose:
Design, engineer, and maintain our proprietary framework, APIs, and technology
components of a SaaS software product platform with the ability to scale to millions of
requests and thousands of concurrent users.
Responsibilities:
- Full stack product engineering i.e. design, engineer, test, deploy, monitor, and maintain software components to QA and Production environments
- Design & engineer product experience & APIs conforming to defined quality, maintainability, scalability, and performance KPIs
- Build, maintain, and improve continuous integration and delivery lifecycle processes
- Automation of repetitive engineering and production activities
Education and Experience
- Engineering in computer science
- 3+ year of relevant experience in product engineering with expertise in building frameworks, reusable components, and APIs
- Expert level skills in analytical & problem solving
- Strong programming and engineering fundamentals like Data Structures,
- Design Principles, TDD, and Performance Tuning to build scalable and performance optimized product
- Ability to communicate clearly in English
- HTML5
- CSS3 (Sass/Less)
- JQuery
- JavaScript (ES6) / TypeScript
- React.js
- Version Control : Git
Role: Senior UI Developer
We are looking for talented front-end developers who can help us in enabling our users and to deliver excellent experiences to end users. The role of a front-end developer in our teams is crucial in realizing our design ideas. We are looking for developers who can contribute in building the best-in-class digital experiences through the right use of frameworks, technologies and code.
Design and Develop web applications using front-end technologies like Angular 8+, Typescript, CSS, JS, HTML and many more.
Implement applications that have high standards of quality and the best of the performance. The candidate primary focus will be to implement a complete user interface desktop web app, with a focus on performance. Translate UX / UI designs from our design teams into high quality code without any loss in translation Design and implement optimized components, modules and applications using best practices of front- end development and clean coding standards. Work closely with backend
development teams on API design and integration.
Experience and Qualification:
- 3 years of experience in front-end development of web applications.
- Frameworks: Angular 8+, Typescript, CSS, JS, HTML
- Experience in react js, jQuery and backend stacks will be an advantage
- B. Tech
Responsibilities:
- Delivering a complete front-end application
- Coordinating the workflow between the graphic designer, the HTML coder, and yourself
- Cooperating with the back-end developer in the process of building the RESTful API
- Communicating with external web services
Key Skills:
- Strong proficiency in Angular 8+, Typescript, JavaScript.
- Strong skills in HTML, CSS and any other CSS Frameworks.
- Thorough understanding of any front-end frameworks like React, Angular or any other along with its core principles
- Experience with data structure libraries, state managements, functional / reactive programming.
- Familiarity with newer specifications of ES6.
- Experience with RESTful APIs integration
- Knowledge of modern authorization mechanisms, such as JSON Web Token
- Familiarity with modern front-end build pipelines and tools
- Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
Deep understanding of React.js and its fundamentals, ideally including modern features like Saga/Thunk/Hooks with 2-4 years of experience in the relevant field.
Excellent understanding of Javascript including the OOP concept and how shadow DOM and DOM work
Excellent understanding of HTML & CSS
Experience with widely used React.js state managers like ContextAPI, Redux
Knowing modern ES6 and later
Knowledge of RESTful APIs
Familiarity with modern front-end build pipelines and tools like Webpack, Babel, NPM, etc.
Knowledge of the overall browser rendering behavior and measuring and optimizing performance
Strong hands-on experience with source code management systems like GIT, SVN
Responsibilities:
Ensure new feature requests are implemented in the front-end part integrating with Web APIs.
Use React best practices to create reusable and structured components.
Confident in using UI/UX designs or wireframes to create the respective code and the application
Write components that perform well in all circumstances
● Collaborate with cross functional teams to define, design and push new features and
innovative front-end solutions. Translate UI/UX design wireframes to actual code that will
produce visual elements of the application.
● Continuously discovering, evaluating, and implementing new technologies to maximize
development efficiency.
● Provide technical leadership towards new UI architectures.
● Unit-testing code for robustness, including edge cases, usability, and general reliability.
● Create and be accountable for user interaction model, workflows, information architecture,
prototypes and guidelines for user interfaces.
● Work closely and collaborate with other members of the development teams to ensure
smooth integration of the UI component with back end technologies
● Should have executed a production level end to end UI application on his own
● Hands on contributor who played an important role in implementing the proposed
architecture and design
● Excellent command over HTML5, CSS,Javascript,Jquery,Ajax,MVVM. Proficient
understanding of web markup.
● Good working knowledge of Bootstrap, Angular 7+, Node.js, Ember.js, Can.js, React.js
● Ability to develop test cases for UI applications functionality and flow testing
● Good knowledge of caching and memory management for UI applications
● Exposure to data visualization libraries such as D3.js
● Designing and building responsive web applications
Educational Qualifications/Requirements:
● 4+ years development experience.
● BE/BS in Computer Science, Management and Information Systems, or equivalent
● Problem Solver: Ability to formulate/implement technical solutions, proven ability to
understand, analyze and solve issues with guidance.
● Strong UI development experience in modern web technologies(HTML/CSS, JavaScript),
frameworks (Backbone.js, jQuery, AngularJS, Bootstrap, Knockout, etc)
● Expertise in Data Structures, Algorithms, Concurrency.
● Thorough understanding of the responsibilities of the platform , database , API , caching
layer , proxies , and other web services used in the system
● Knowledge of Java fundamentals, RESTful Web Services, JUnit testing, Java Script
Testing frameworks like Protractor & Jasmine. Test Driven Development (TDD) experience a
plus.
● Avid Learner/Contributor: Quick learner, great ability to listen and communicate well
verbally and written.
● Experience in internationalization/localization.
Mastree's engineering team is working towards building a data science engine that enables students to learn in a way they understand the best. We believe in delivering learning experiences through engagement. The product is designed with countless embedded interactive information pieces to help the students imbibe the concepts better. At Mastree we take pride in being a part of the product that holds the potential to revolutionise the education process.
We are looking for folks who are passionate about creating interaction rich interfaces. Creative individuals who believe in the power of visuals.
Responsibilities:
- Creating visual elements that users see and interact within our web platform.
- This makes your role crucial for the success of the product.
- Working closely with the design, product management and development teams to create elegant, usable, responsive and interactive interfaces across multiple devices.
- Ensuring that the application is optimised both in terms of technology and in delivering the best educational content.
- Building web platform for our live tutoring platform
- Creating interactive learning activities for K12 students and work on our upcoming products
Requirements:
- You are an avid programmer
- You have great grasp of fundamentals of JavaScript and ES modules, new ECMASCRIPT concepts
- You have experience in ReactJS web app development
- You are an exceptional problem solver, with attention to details.
Brownie Points:
- Good HTML and CSS skills
- Experience in React-Native app development
- Ability to work in small teams and wear multiple hats











