
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
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React.js, Java Script, Redux, React,React.js,Angular,Frontend Developer, UI Developer, Full Stack Developer
Job description
We are looking for an experienced HTML developer to oversee the design, coding, and implementation of projects.
In this role, you will be required to collaborate with Website Designers on the initial web design, write the code, ensure cross-platform compatibility, and provide user support.
To be successful as an HTML developer, you should have a good eye for detail and excellent knowledge of front-end technologies like HTML5, CSS3, Bootstrap.
HTML Developer Responsibilities:
Meeting with Web designers to discuss project design and layout.
Coding the entire HTML site from end to end.
Debugging code and front-end web applications.
Ensuring cross-platform compatibility.
Troubleshooting application errors.
Conducting website performance and usability tests.
Meeting publication deadlines.
Providing user support.
HTML Developer Requirements:
At least 2 years experience as an HTML Developer.
In-depth knowledge of front-end coding languages including HTML, CSS
Basic Knowledge on Javascript, Jquery
Ability to troubleshoot coding and application errors.
Knowledge of web design and user application requirements.
Ability to meet strict publication deadlines.
Good understanding of SEO principles and ensuring that the application will adhere to them
Position Overview: We are seeking a talented and motivated ReactJS Intern to join our team for a 6-month full-time internship. This is a fantastic opportunity for someone with prior internship experience to deepen their knowledge and skills in ReactJS while working on cutting-edge projects.
Responsibilities:
- Collaborate with the development team to design, develop, and maintain web applications using ReactJS.
- Write clean, maintainable, and efficient code.
- Participate in code reviews and contribute to the improvement of the codebase.
- Work closely with designers to implement user interfaces and user experiences.
- Assist in troubleshooting, debugging, and optimizing applications.
- Stay updated with the latest industry trends and technologies related to ReactJS.
- Contribute to the documentation of technical processes and workflows.
- Engage in team meetings and brainstorming sessions to contribute innovative ideas.
Requirements:
- Previous internship experience in a software development role.
- Knowledge of ReactJS and its core principles.
- Proficiency in JavaScript, HTML5, and CSS3.
- Familiarity with RESTful APIs and asynchronous request handling.
- Understanding of modern front-end build pipelines and tools.
- Experience with version control systems, preferably Git.
- Excellent problem-solving skills and attention to detail.
- Ability to work effectively in a collaborative team environment.
- Strong communication skills and the ability to articulate technical concepts clearly.
Nice to Have:
- Understanding with state management libraries like Redux or Context API.
- Knowledge of TypeScript and its integration with ReactJS.
- Familiarity with front-end testing frameworks and tools (e.g., Jest, Enzyme).
- Understanding of responsive design principles and mobile-first development.
- Experience with CSS preprocessors like SASS or LESS.
What We Offer:
- Hands-on experience with real-world projects and modern technologies.
- Mentorship and guidance from experienced professionals.
- A collaborative and inclusive work environment.
- Opportunity to contribute to meaningful projects and make a real impact.
- Competitive stipend and potential for a full-time position upon successful completion of the internship.
We are looking for a great JavaScript developer who is proficient with React.js. Your primary focus will be on developing user interface components and implementing them following well-known React.js workflows (such as Flux or Redux). You will ensure that these components and the overall application are robust and easy to maintain. You will coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a commitment to collaborative problem-solving, sophisticated design and quality products is important.
Responsibilities
-
Developing new user-facing features using React.js
-
Building reusable components and front-end libraries for future use
-
Translating designs and wireframes into high-quality code
-
Optimizing components for maximum performance across a vast array of web-capable devices and browsers
Skills
-
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
-
Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
-
Ability to understand business requirements and translate them into technical requirements
-
A knack for benchmarking and optimization
- Build fluid, scalable, responsive, and consumer-centric web platforms that target users across a wide array of devices
- Collaborate closely with designers & backend developers and contribute to the full product development life-cycle from design and development to roll out
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- Build optimized and modular components to provide performance-oriented solutions
- Work in a dynamic and collaborative culture ensuring good teamwork and communication with remote team members when needed
Qualifications
- 4+ Years of experience in frontend web development (1+ in ReactJS)
- Strong past experience of building, scaling and maintaining feature-rich customer-facing single-page applications
- Ability to translate designs into UI elements with accuracy and an eye for fluidity and responsiveness; strong grasp of any of CSS / sass / less
- Proven ability to implement key concepts of state management, security, and caching practices in enterprise-level web applications used at scale
- Proficient understanding of compatibility issues across different browsers and web and mobile devices and available ways to work around them
- Familiarity with the react ecosystem and popular libraries in that ecosystem
- Strong grasp over core web development concepts like HTML5, JavaScript, CSS3, general Web 2.0 techniques, and working without modern component libraries
- Experience with designing secure web applications with a strong understanding of common security vulnerabilities and best practices
- Understanding of data structures, algorithms and object-oriented programming
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Skills that will give you an edge
- Hands-on experience with supporting payments and integrating payment gateways
- Experience with progressive web apps, service workers
- Strong grasp over frontend unit and end-to-end testing frameworks
We are seeking Junior UI/UX Developers to join delivery team at Kochi. In this role, you will be responsible to translate UI / UX design wireframes to actual code that will produce visual elements of the application. Your job is to bridge the gap between graphical design and technical implementation, taking an active role on both sides and defining how the application looks as well as how it works. If you are a technology expert, with a desire to provide potential customers with the best customer experience, this is the right challenge for you.
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