Role - Javascript developer
Location - Jaipur
Experience - 1-5 years
Skills and Qualifications
● Experience in developing front-end components using Object-Oriented
JavaScript, HTML5, and CSS3
● Skilled at Object-Oriented JavaScript and having a working knowledge of at least one
of the following Frameworks (Angular, React etc.)
● Add on Excellent knowledge of working with dynamic data (e.g., JSON, XML)
●Good understanding of version control systems like Git
Roles and Responsibilities
● Develop new user-facing features.
● Optimize applications for maximum speed and scalability.
● Assure that all user input is validated before submitting to back-end services.
● Collaborate with other team members and stakeholders.
● Identify and establish best practices and frameworks keeping in mind the parameters of
performance, responsiveness, and reuse
● Translate designs and style guides into interactive user interfaces, ensuring cross
browser compatibility, performance and robustness
● Deliver high-quality code that is maintainable and readable.
● Develop and maintain features using JavaScript frameworks such as Angular or
React Skills

About Extern Labs
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Company aims to eradicate math phobia and encourage careers in math and STEM fields among learners from across the world. Company is bridging the gap between dreams and
competence, by enabling students to realise their full potential and introduce them to science, coding and AI, through the lens of math.
Job Description
● Experience in UI development using React JS
● In depth knowledge of JavaScript, CSS, HTML and front-end languages
● Excellent front-end coding skills, and a good understanding of progressive applications
● Strong knowledge of UI design principles, patterns, and best practices
● Experience working with JavaScript and Typescript, React, Redux, RxJS, Yarn
● Experience in test driven development using modern source control and continuous integration
Responsibilities
● Design, develop, test, deploy and maintain software
● Delivering high quality and well-structured code
● Manage individual project priorities and deadlines
● Participate in enhancing tools and processes
● Participate in production observance and technical incident management
● Ability to quickly learn and adapt to keep up in a fast-paced environment
Job Description
- • Collaborate with developers and UI/UX engineers to build scalable web apps
- • Design, implement and manage large applications with video streaming and complex state and high-frequency data
- • Experiment with large data sets to find interesting and valuable ways to visualize the data
- • Build reusable, testable React components that can be used between projects
- • Contribute towards building the company’s coding culture.
- • Mentor, groom junior developers and participate in code reviews
Requirements
- • 3+ years of relevant industry experience
- • A deep understanding of JavaScript
- • React, Redux or other JS framework experience
- • HTML5, CSS/SASS, Restful APIs, HTTP
- • JEST or other testing experience
- • Experience with android app development
- • Experience with CI/CD
- • Experience with Mathjax/Latex
- • Experience with large scale video streaming
- • Understanding of i18n, A11Y
- • Excellent understanding of cross-browser compatibility issues
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
- Thorough understanding of React.js and its core principles
- Experience with popular React.js workflows (such as Flux or Redux)
- Familiarity with newer specifications of ECMAScript
- Experience with data structure libraries (e.g., Immutable.js)
- Knowledge of isomorphic React is a plus
- Familiarity with RESTful APIs
- Knowledge of modern authorization mechanisms, such as JSON Web Token
- Familiarity with modern front-end build pipelines and tools
- Ability to understand business requirements and translate them into technical requirements
- A knack for benchmarking and optimization
- Familiarity with code versioning tools (such as Git, SVN, and Mercurial)
We are seeking a highly experienced and skilled React/Next.js developer to join our team. The ideal candidate will have a strong track record of building and maintaining web applications using React and Next.js, as well as a strong understanding of front-end development.
Responsibilities:
- Develop and maintain web applications using React and Next.js
- Write clean, maintainable, and efficient code
- Collaborate with the design team to implement visually appealing and user-friendly interfaces
- Work with the back-end team to integrate with APIs and other server-side functionality
- Troubleshoot and debug issues as they arise
- Write and maintain comprehensive documentation
Requirements:
- Experience with Tailwind CSS to create custom, responsive user interfaces
- Experience with CSS-in-JS libraries
- Experience with Git, npm, and webpack
- Familiarity with RESTful APIs and GraphQL
- Strong debugging and troubleshooting skills
- Ability to work well in a team environment and communicate effectively with other developers and designers.
Preferred:
- Experience optimizing performance and scalability of web applications
- Familiarity with testing frameworks such as Jest
- Experience with deploying and maintaining web applications
- Experience with TypeScript
- Familiarity with other JavaScript libraries and frameworks such as Redux, GraphQL, and Apollo, react-query
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( Not funded yet)
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
The Job Overview
We are seeking a dedicated Vue.js front-end developer to join our growing company. You will work as
part of a team to develop fast, well-tested, and performant code for various web and mobile
applications using Vue.js. As a Vue.js front-end developer, you will be expected to work with standard
programming tools such as version control and deployment software, follow industry best practices,
write tests for the code you write, and follow all applicable coding guidelines.
Your duties will include taking part in daily scrums, writing and developing modules for existing Vue
applications, integrating Vue into existing projects, writing code and tests for code, taking part in code
review sessions, and using version control software to push and pull code for testing and deployment.
Responsibilities
Write performant code using core Vue, Vuex, and Vue Router to create websites and web
applications
Create tests for code written by yourself and other web developers, full-stack developers, and
software engineers
Integrate Vue into legacy projects
Diagnose and fix bugs and other software defects in new and existing Vue applications
Run code optimization tools and analyzers to spot and refactor inefficiencies to create highly
performant code
Skill Sets:
Bachelor’s degree or several years of experience in e-commerce, computer science, or other
related fields
Strong understanding of JavaScript and React JS, including the latest revisions of ECMAScript
Good knowledge of the Vue.js framework and related components such as Vuex and Vue Router
Experience with standard tools and services in JavaScript front-end development and software
development, such as Git, GitHub, HTML5, Laravel, Angular, Node.js, and npm
The ability to work as part of a team, taking ownership of individual components and following
coding guidelines to create performant components that fit into more-comprehensive projects
An understanding of advanced JavaScript concepts, such as dealing with asynchronous requests
and dynamic content
Experience with integrating and maintaining external software libraries and APIs using a
command-line interface and package managers

Experience: 7 to 11 years
Responsibilities
- Architect web applications keeping in mind speed, performance, and maintainability
- Develop new user-facing features
- Build reusable code, components, and libraries for future use
- Ensure the technical feasibility of UI/UX designs
- Optimize application for maximum speed and scalability
- Obsesses over web performance and speed
- Collaborate with other team members and stakeholders
- Plan, write and maintain testable code and components
- Write meaningful unit and e2e tests
- Implement CI/CD for front end web applications
Skills And Qualifications
- Proficient understanding of web markup, including HTML5, CSS3, and JS (ES6 preferred)
- Basic understanding of server-side CSS pre-processing platforms, such as LESS and SASS
- Proficient understanding of client-side scripting and JavaScript frameworks, including jQuery
- Good understanding of one or more javascript frameworks
- Good understanding of asynchronous request handling, partial page updates, and AJAX
- Proficient understanding of cross-browser compatibility issues and ways to work around them.
- Proficient understanding of code versioning tools
- Proficient understanding in any one testing frameworks
- Proficient understanding of website security and web memory management
We are looking for a React.js Developer to join our team! If you are interested in creating the best user experience and UI, you will love this job!
- Plan, develop and implement user interface strategy
- Work with designers and developers to develop modern, intuitive user interfaces for our web properties
- Work on design, look, and feel of our web properties
- Continuously improve the user experience
- Research user preferences
- Research new technologies and best practices
- Work in a team environment with shared code; disciplined use of source code control and process documentation
- Improve JS and CSS quality by conducting code analysis, and recommending changes in policies and procedures
- 1+ year of experience with ReactJS, Next.js
- 1+ years of experience with SASS/LESS
- 1+ years of experience with TypeScript
- 1 years of experience with node
- 1 years of experience with HTML
- 1 years of experience with CSS
- 1 years of experience with DOM
- 1 years of experience with AJAX, AXIOS, etc
- Critical thinker and problem-solving skills
- Team player
- Good time-management skills
- Great interpersonal and communication skills
- Degree in Computer Science
Key Skills
Typescript, React, React.js, Javascript, Node









