
We are seeking a highly skilled React JS Developer with exceptional DOM manipulation expertise and real-time data handling experience to join our team. You'll be building and optimizing high-performance user interfaces for stock market trading applications where milliseconds matter and data flows continuously.
The ideal candidate thrives in fast-paced environments, understands the intricacies of browser performance, and has hands-on experience with WebSockets and real-time data streaming architectures.
Key Responsibilities
Core Development
- Advanced DOM Operations: Implement complex, performance-optimized DOM manipulations for real-time trading interfaces
- Real-time Data Management: Build robust WebSocket connections and handle high-frequency data streams with minimal latency
- Performance Engineering: Create lightning-fast, scalable front-end applications that process thousands of market updates per second
- Custom Component Architecture: Design and build reusable, high-performance React components optimized for trading workflows
Collaboration & Integration
- Work closely with traders, quants, and backend developers to translate complex trading requirements into intuitive interfaces
- Collaborate with UX/UI designers and product managers to create responsive, trader-focused experiences
- Integrate with real-time market data APIs and trading execution systems
Technical Excellence
- Implement sophisticated data visualizations and interactive charts using libraries like Chartjs, TradingView, or custom D3.js solutions
- Ensure cross-browser compatibility and responsiveness across multiple devices and screen sizes
- Debug and resolve complex performance issues, particularly in real-time data processing and rendering
- Maintain high-quality code through reviews, testing, and comprehensive documentation
Required Skills & Experience
React & JavaScript Mastery
- 5+ years of professional React.js development with deep understanding of React internals, hooks, and advanced patterns
- Expert-level JavaScript (ES6+) with strong proficiency in asynchronous programming, closures, and memory management
- Advanced HTML5 & CSS3 skills with focus on performance and cross-browser compatibility
Real-time & Performance Expertise
- Proven experience with WebSockets and real-time data streaming protocols
- Strong DOM manipulation skills - direct DOM access, virtual scrolling, efficient updates, and performance optimization
- RESTful API integration with experience in handling high-frequency data feeds
- Browser performance optimization - understanding of rendering pipeline, memory management, and profiling tools
Development Tools & Practices
- Proficiency with modern build tools: Webpack, Babel, Vite, or similar
- Experience with Git version control and collaborative development workflows
- Agile/Scrum development environment experience
- Understanding of testing frameworks (Jest, React Testing Library)
Financial Data Visualization
- Experience with financial charting libraries: Chartjs, TradingView, D3.js, or custom visualization solutions
- Understanding of market data structures, order books, and trading terminology
- Knowledge of data streaming optimization techniques for financial applications
Nice-to-Have Skills
Domain Expertise
- Prior experience in stock market, trading, or financial services - understanding of trading workflows, order management, risk systems
- Algorithmic trading knowledge or exposure to quantitative trading systems
- Financial market understanding - equities, derivatives, commodities
Technical Plus Points
- Backend development experience with GoLang, Python, or Node.js
- Database knowledge: SQL, NoSQL, time-series databases (InfluxDB, TimescaleDB)
- Cloud platform experience: AWS, Azure, GCP for deploying scalable applications
- Message queue systems: Redis, RabbitMQ, Kafka, NATS for real-time data processing
- Microservices architecture understanding and API design principles
Advanced Skills
- Service Worker implementation for offline-first applications
- Progressive Web App (PWA) development
- Mobile-first responsive design expertise
Qualifications
- Bachelor's degree in Computer Science, Engineering, or related field (or equivalent professional experience)
- 5+ years of professional React.js development with demonstrable experience in performance-critical applications
- Portfolio or examples of complex real-time applications you've built
- Financial services experience strongly preferred
Why You'll Love Working Here
We're a team that hustles—plain and simple. But we also believe life outside work matters. No cubicles, no suits—just great people doing great work in a space built for comfort and creativity.
What We Offer
💰 Competitive salary – Get paid what you're worth
🌴 Generous paid time off – Recharge and come back sharper
🌍 Work with the best – Collaborate with top-tier global talent
✈️ Adventure together – Annual offsites (mostly outside India) and regular team outings
🎯 Performance rewards – Multiple bonuses for those who go above and beyond
🏥 Health covered – Comprehensive insurance so you're always protected
⚡ Fun, not just work – On-site sports, games, and a lively workspace
🧠 Learn and lead – Regular knowledge-sharing sessions led by your peers
📚 Annual Education Stipend – Take any external course, bootcamp, or certification that makes you better at your craft
🏋️ Stay fit – Gym memberships with equal employer contribution to keep you at your best
🚚 Relocation support – Smooth move? We've got your back
🏆 Friendly competition – Work challenges and extracurricular contests to keep things exciting
We work hard, play hard, and grow together. Join us.

About iRage
About
At iRage, we harness the power of technology and quantitative finance to craft cutting-edge high-frequency trading systems and strategies. Our journey began in 2009, shortly after the introduction of Direct Market Access (DMA) in the Indian markets, which ushered in a new era of possibilities in algorithmic trading.
iRage was founded by a group of passionate quantitative trading professionals who saw the immense potential within this domain. Since our inception, we've been on a relentless pursuit of excellence, aiming to reshape the landscape of algorithmic trading in India.
When you join our team at iRage, you're not just an employee; you're an integral part of our mission to solve some of the most challenging engineering problems in the financial industry. You'll collaborate with exceptional programmers, quantitative analysts, and traders who share your enthusiasm for innovation.
Connect with the team
Similar jobs
Job Title: React.js Developer
We are seeking a talented React.js Developer to build and maintain high-quality web applications. The ideal candidate should have strong experience in JavaScript/TypeScript, React.js, HTML, CSS, and state management (Redux/Context API). You will work closely with our team to develop responsive UIs, integrate APIs, and ensure performance optimization.
Requirements:
- 2+ years of experience in React.js development
- Strong knowledge of JavaScript (ES6+), React hooks, and component-based architecture
- Familiarity with RESTful APIs, Git, and modern front-end tools
- Bonus: Experience with Next.js, Tailwind, or testing frameworks
We are looking for a motivated and detail-oriented WordPress Developer to join our team. The ideal candidate has 1 to 3 years of professional experience and a solid foundation in building, customizing, and maintaining functional, high-performance websites.
In this role, you will work across the full lifecycle of web projects—from initial setup and layout design using page builders to integrating complex e-commerce solutions via WooCommerce and Shopify.
Key Responsibilities
- Website Development: Build and launch full-scale WordPress websites from scratch, ensuring they are fully responsive and optimized for all devices.
- Theme & Plugin Management: Install, configure, and customize themes and plugins to meet specific project requirements.
- E-commerce Integration: Setup and manage online stores using WooCommerce and Shopify, including product configuration, payment gateways, and shipping modules.
- Custom Architecture: Implement Custom Post Types (CPT) and custom fields to handle specialized content structures.
- Design Implementation: Utilize page builders like Elementor or Divi to create visually appealing layouts while maintaining clean design standards.
- Maintenance & Performance: Perform regular updates, troubleshoot bugs, and optimize sites for speed and core web vitals.
Technical Requirements
- WordPress Expertise: 1–3 years of experience with WordPress core, including a deep understanding of the dashboard and settings.
- Front-end Basics: Proficiency in HTML5, CSS3, and JavaScript (jQuery) to make styling adjustments and add interactivity.
- PHP Knowledge: Familiarity with PHP basics for minor template edits and troubleshooting.
- Page Builders: Hands-on experience with Elementor, Divi, or similar drag-and-drop editors.
- E-commerce Platforms: Proven experience working with both WooCommerce and Shopify.
- Responsive Design: A "mobile-first" mindset to ensure seamless viewing experiences across desktops, tablets, and phones.
Location: Noida Sector 10
Experience: 1 Year to 3 Years
Job Types: Full-time, Permanent
Pay: ₹10,000.00 - ₹18,000.00 per month
Shift: 10:00 AM – 7:00 PM

Position: React Js Developer
Location: Chennai
Job Specification
- Research, design, implement and manage front end applications Integrating and testing with Restful APIs.
- Identify the areas for modification in existing programs and subsequently developing these modifications
- Writing and implementing efficient code Determining operational practicality
- Work in an agile team Maintaining and upgrading existing systems.
- Delivering a complete front end application from scratch or extending existing application
- Proficiency in React JS and React Native is a must ensure high performance on Mobile and desktop. Writing high quality JavaScript, HTML and CSS.
- Work experience in creating progressive and responsive web applications ensures the best possible performance, quality and responsiveness of the web application.
- Identify and correct bottlenecks and fix bugs.
- Familiarity with RESTful APIs to connect to back-end services and data parsing using XML, JSON.
- Thorough understanding of the responsibilities of the platform, database API, caching layer, proxies and other web services used in the system.
- Configuration, build and test scripts for Continuous Integration environments. Proficiency in Git.
If you posses the above mentioned required skill sets & want to grow along with our fast paced growing Organisation then please share your updated CV.
Roles and Responsibilities
We're hiring a Front End Developer for the Indore location to join our team!
Experience required: 2-4 Years
Job Location: Indore (Onsite)
#skillsrequired:- Reactjs, Next.js, Redux, Flux, HTML, CSS, JavaScript, Material-UI (MUI), Git, Webpack, Babel
#Requirements:
▫ Proficiency in React.js and its core principles
▫ Experience with popular React.js workflows (such as Redux, Flux, or Context API)
▫ Strong knowledge of HTML, CSS, and JavaScript
▫ Familiarity with the Next.js and Material-UI (MUI) framework
▫ Understanding of RESTful APIs and asynchronous request handling
▫ Experience with version control systems (e.g., Git)
▫ Knowledge of frontend build tools (e.g., Webpack, Babel)
▫ Ability to optimize applications for maximum speed and scalability
▫ Familiarity with browser rendering behavior and performance optimization techniques
▫ Excellent problem-solving and communication skills
▫ Experience with Agile/Scrum methodologies is a plus
Front end Developer (Angular)
- You are your own master. We don't preach you, we just allow you to Innovate, Iterate, Learn and Adapt
- Work with one of India's leading fintech unicorn company
- ESOPs in the company
Requirements
- At least 3-12 years of Frontend 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.
- Should have executed a production level end to end UI application on his own
- A 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.
- Expert Level proficiency of Bootstrap, Angular.js (Angular Latest version preferred), Framework.
- General Familiarity with Node.js, Ember.js, Can.js, React.js
- Proficient in unit test cases for UI applications functionality and flow testing using Jasmine/Karma Framework
- Good knowledge of caching and memory management for UI applications
- Exposure to data visualization libraries such as D3.js
Roles and Responsibilities
- 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 models, 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
- Designing and building responsive web applications.
- Strong experience of Angular 2+ and above along with other technologies like HTML5, CSS, jQuery, AJAX with good knowledge of ECMA Scripts.
- Strong knowledge of JS Fundamentals.
- Design & development of Angular applications as per desired specifications, along with experience in frameworks/libraries like jQuery, Bootstrap, Typescript etc.
- Architecture design, development, testing and maintenance of Web Apps, Implementation based on Angular Application MVC Patterns.
- Own end to end product modules/features (from the requirement to going live)- Design & code review, troubleshoot & help team members on issues.
- Gather requirements by interacting directly with the end-users.
- Research on open source framework/technology required for developing the feature/application.
Job Description
Role:- Software engineer - front end
About the company:-We are a social learning platform that allows us to learn the way we learn best. If our children are going to learn online we will have to make it social. That’s how learning happens best. We think we’re amongst the first few companies in the world trying to push the boundaries of edtech to a new era of highly social & community driven learning.
Responsibilities:-
You will be responsible for taking end-to-end ownership of the development of beautiful, fast, and responsive mobile and web applications. You will have attention to detail. You will care about the quality of code, design patterns and testability. You will be working closely with designers, product managers and engineers to build products that will delight our educators, students and parents.
HTML, CSS and JavaScript ninja
Patient debugging skills
Using state of the art developer toolkit
React JS / React Native / Vue.js
Curiosity to remain updated with the newest technologies and frameworks
“ Front End Developer-React JS”
Job Description –
Preferred skills
- Experience in front end development, with knowledge in advanced JavaScript features
- HTML/CSS experience, including concepts like layout, specificity, cross-browser compatibility, and accessibility
- Experience with browser APIs and optimizing front end performance
- Proficient in a broad range of software design approaches and common UX patterns
- Understand the usage of various front end software design patterns
- Extensive experience working on highly scalable web applications (5+ years)
- Experience in front end libraries and frameworks such as Reactjs or Angular is an added advantage
- At least 2+ years of product development experience with expertise in designing and implementing high-performance web applications
- You must be proficient in Problem Solving and Data structures since you got to find the best way of handling a huge set of data.
- Strong hands-on experience in developing web applications using JavaScript
- Strong experience and knowledge in single-page frameworks like ReactJS/Angular/VueJs/other frameworks and ability to design the architecture of single-page applications.
- Strong hands-on experience with JAVASCRIPT, OOPS Concepts, Single page applications, REACTJS, D3, NodeJS, etc
- Build tools such as grunt, gulp, web pack.
- Exceptional debugging skills and knowledge on browser developer tools
- Familiar with RESTful APIs to connect applications to back-end services
- Familiar with optimization techniques (both in file weight and perceived/actual processing speed), debugging techniques, dynamic content retrieval, state management e.g: (Redux), cross-browser support.
- Experience in optimizing the application for performance and scalability using CDN, caching, etc
- Deep experience developing modular, object-oriented JavaScript Strong command of the HTTP protocol and the latest web standards
- Knowledge on Node server, Socket connections and mechanisms to handle real-time async data would be a plus.
- Very Good understanding of Agile/Scrum methodologies
- Very strong full stack experience with familiarity in serving technologies such as HTTP, CDN, proxies and caching
- Working experience with distributed teams and leading them is a plus
- Strong hands-on on writing test cases and documenting UI component.










