
Qualifications:
Primary Skill Set:
5+ years for experience in developing highly scalable, reliable, secure web applications
Experience with React.js, Node.js, Redux, flux, Javascript (preferably TypeScript).
Atleast 1 years of experience in product or SaaS development.
Excellent Team management, communication skills, both verbal and written
Strong CS fundamentals like data structures and especially the asynchronous challenges that are faced by JavaScript developers regularily.
Preferable Skillset:
One year of experience using AWS services, such as Lambda, SES, SQS, EC2, RDS, ELB’s and have knowledge of VPC’s (AWS and/or RightScale knowledge a plus.
Proficient with the Webpack,Jest, Eslint, Jenkins, Docker, Enzyme.
Experience designing data persistence and caching concepts using both SQL and NoSQL DBMS (MySQL, DynamoDB, Redis, etc.) and client side storage
Profile and improve frontend performance

About Extramarks
About
Extramarks Education India Private Limited
Extramarks is leading the Education Technology sector in India by providing 360⁰ education support to learners through new age digital education solutions. These solutions are used by schools in class room for imparting education and by students at home to make learning easy and effective. Keeping pace with globalization and technology in education, Extramarks empowers young learners to step in with the latest technology and have anytime-anywhere access to quality learning. In a very short period, Extramarks has become extremely popular among schools and students. More than 8000 schools use digital learning and technology solutions of Extramarks across India, Singapore, Kuwait, UAE and South Africa.
Extramarks Learning App allows students to learn at home at their own pace and space and provides complete educational support eliminating the need of a tutor. The three pronged pedagogical approach of Learn, Practice and Test ensures better learning outcomes for students. All concepts are first explained in an easy to learn manner with the help of rich media then the students are allowed to practice the concept. Virtual Practicing modules and Q&A allow the retention of knowledge that is tested on a robust teaching platform to identify the learning gaps.
Extramarks is currently in the process of scaling up rapidly the entire technology workforce, by hiring experienced professionals with unique skill who stretches from strategy to execution. Extramarks is driving student learning through data driven techniques by providing personalized learning recommendations to the students. Apart from such customer facing innovations, we are also implementing internal operational excellence solutions through similar data driven approaches. It is a once in a lifetime opportunity to join Extramarks and help change the face of education in India.
Connect with the team
Company social profiles
Similar jobs
Job Title: Frontend Developer – Perpetual Trading
Location: Remote
Experience: 2+ Years
About the Company
We are a next-generation cryptocurrency exchange focused on building innovative and secure trading experiences for digital assets and derivatives. With a strong emphasis on perpetual trading and real-time market execution, we aim to redefine how traders interact with crypto markets — combining transparency, performance, and user-centric design.
Role Overview
We are seeking an experienced Frontend Developer with a strong background in perpetual trading platforms and Web3 projects. The ideal candidate has hands-on experience integrating perpetual trading APIs such as GMX, Hyperliquid, or similar decentralized perpetual exchanges. You will develop high-performance, real-time trading interfaces that deliver seamless user experiences.
Key Responsibilities
- Develop and maintain scalable, responsive, and real-time front-end interfaces for perpetual trading dashboards.
- Integrate APIs from decentralized perpetual trading platforms like GMX, Hyperliquid, or others.
- Implement real-time order books, charts, and market data using REST and WebSocket APIs.
- Collaborate with backend, blockchain, and UI/UX teams to deliver a cohesive trading experience.
- Optimize the interface for low latency and high-frequency data updates.
- Implement wallet connectivity (MetaMask, WalletConnect) and secure trade execution flows.
- Write clean, modular, and maintainable code following modern front-end practices.
Required Skills & Experience
- 2+ years of experience as a Frontend Developer in crypto, DeFi, or trading platforms.
- Proven experience integrating perpetual trading APIs (e.g., GMX, Hyperliquid, Drift, or similar).
- Strong skills in React.js / Next.js, TypeScript, HTML5, CSS3, and JavaScript (ES6+).
- Experience working with real-time data using WebSockets.
- Familiarity with charting libraries (TradingView, Recharts, D3.js).
- Understanding of Perpetual Trading, Futures, and DeFi trading mechanics.
- Hands-on experience with Web3 integration using ethers.js or web3.js.
- Knowledge of API integration, front-end performance optimization, and security best practices.
Good to Have
- Experience in DEX / Web3 UI development.
- Familiarity with Redux, Zustand, or other state management tools.
- Understanding of smart contracts and on-chain data.
- Strong eye for UI/UX design in complex trading applications.
Responsibilities
-
Ability to translate Wireframes and PSD Designs into functional web apps using HTML5, AngularJS, React , Node.js, and Mongo
-
Binding of UI elements to JavaScript object models
-
Creating RESTful services with Node.js
-
Architect scalable web architectures
-
Work in a cross-functional team to deliver a complete user experience
-
Create Unit and Integration tests to ensure the quality of code
-
Be responsive to change requests and feature requests
-
Write code that is cross-platform and cross-device compatible
-
Ability to wear many hats and learn new technologies quickly
-
Experience Level: Min 2+ years
-
JavaScript and react.
-
RESTful API’s, basic HTTP knowledge, GET/POST.
-
Experience using technologies like React, Redux, TypeScript, modern CSS frameworks and web pack.
-
Good Communication Skills
Requirements:
- Bachelor's degree or equivalent in Computer Science.
- 2+ years' experience in frontend development.
- Proficient understanding of HTML5 CSS3 and JavaScript.
- Deep knowledge of cross-browser compatibility issues and ways to work around them.
- Familiarity with one or more frameworks, such as Angular, React, or Knockout.
- Experience with TypeScript, ES6/ES2015 a plus.
- Familiarity with Node.js, npm, and build systems such as webpack, Grunt, or gulp a plus.
- Familiarity using Scrum/Agile development methodologies.
We're seeking a skilled Front-end Lead Engineer to lead an ongoing production-ready enterprise project and contribute to code while leading the frontend team. If you're adept at creating user-friendly products and eager to work with cutting-edge tech in a growing company, we want to hear from you. We value an entrepreneurial mindset and passion for technology in our team members.
Experience: 5+ Year
Working Time: 12.30 PM to 9.30 PM
- Collaborate closely with cross-functional teams, including design, engineering & QA, to deliver high-quality solutions.
- Participate in planning and decision-making processes related to technical architecture, design, and implementation.
- Lead and mentor the Front-end (FE) team, providing technical guidance, coaching, and support.
- Oversee the deployment of frontend applications, coordinating with teams as necessary.
- Drive agile development practices within the FE team, ensuring efficient project delivery.
Requirements
- Bachelor's degree in Computer Science or related field.
- Minimum of 3 years of experience in leading the front-end development team.
- Proven experience in frontend development, with expertise in ReactJS, NextJS, MaterialUI, and React Query.
- Proficient in TypeScript development, skilled in building type-safe applications and leveraging TypeScript configurations for enhanced development efficiency.
- Proven leadership skills, with the ability to lead and mentor a diverse team.
- Excellent communication and interpersonal skills, with the ability to collaborate with cross-functional teams.
Benefits
- Gain real-world experience in corporate functioning.
- Learn to collaborate with diverse teams and meet deadlines in a professional environment.
- Access various learning and development programs to explore your passion.
- Work in a fast-paced, rapidly expanding tech team undergoing a revamp, with exposure to advanced technology and tools relevant to your role
What you'll do
You will work collaboratively in small teams and iteratively through design and development to deliver fully functioning web-based and mobile applications. In this role, you will employ agile methodologies to quickly provide our consultants with the solutions they need. You will help combine the latest open source technologies together with traditional Enterprise software products. You will be a core member of the team with responsibilities that range from driving the architecture design and technology decisions for shaping the next generation products for various internal teams to ensure that we stay on the leading edge of technology. You will also be responsible for leading multiple development teams while delivering the best in class enterprise-grade software solutions across a breadth of different platforms and technologies.
Full-stack
- 4.5+ years Experience with AngularJS
- Available for immediate joining
- Strong expertise with HTML, CSS, and writing cross-browser compatible code.
- Good understanding of AJAX and JavaScript Dom manipulation Techniques
- Experience with RESTful services
- Experience in JavaScript build tools like grunt or gulp
- Expert in any one of the modern JavaScript MV-VM/MVC frameworks (AngularJS, JQuery, NodeJS, GruntJS)
- Hand on and implements complex AngularJS applications, directives, controllers, services
- Critical thinker and problem-solving skills
- Team player
Technologies: HTML5, CSS3, SCSS, Responsive UI Development (Material UI, Bootstrap etc.), Java Script (ECMA Script 6 & 7) , React JS & Next JS.
Process related tools: Github, Jira & Slack
Experience: 5+ Years (Minimum 2 Years experience in React JS)
Communication: Moderate/Fluent in English
Job Type: Contract (Remote - In India)
Joining: Immediate
Must to have skills with required skill rating:
Communication: 8/10
HTLM5: 8/10
CSS3: 8/10
SCSS: 8/10
Responsive UI Development (Bootstrap, Material etc...): 9/10
Java Script (ES6): 9/10
REACT JS: 8/10
Good to have Skill:
Next Js: 8/10
As the lead for the frontend development team at Mosaic, you will be the sole owner of the
entire FE development cycle for our consumer facing web products in ReactJS. Also, you will
be responsible for shaping up the entire system for scale and collaborating intensively with the
backend and design teams to create the best consumer experiences. You would also need to
control the mobile app development lifecycle on ReactNative.
Responsibilities
- Overlook development of all user-facing products in React
- Build reusable components and front-end libraries for future use
- Translate designs and wireframes into high quality code
- Optimize components for maximum performance across a vast array of web-capable
devices and browsers
- Focus on code maintainability and performance of application
- Provide technical advice and assists in solving programming problems
- Use Server Side Rendering when applicable
- Enhance SEO, Analytics and overall frontend architecture for better performance
Requirements
- 4+ years of experience building frontend for consumer facing products
- 2+ years on ReactJS for consumer facing products
- 1+ years of Team Lead/Management experience
- Thorough understanding of architecting the frontend system with Server Side Rendering
- Good foundation in design and a knack for designing interactions and elegant interfaces
- Understands app development cycle
- Experience with NodeJS for Server Side Rendering/coordinating with the backend team
for API requirements
- Must come up with caching solutions where required to speed up the website load speed
and improve customer experience









