Senior React JS Developer at iRage · Mumbai · 4 - 7 years · ₹25L - ₹40L / yr · Profitable · Posted 9 Sep 2025
React.js
Javascript
HTML/CSS
Git
NodeJS (Node.js)
Python
Go Programming (Golang)
Redis
Amazon Web Services (AWS)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.
Shubham Vishwakarma
Full Stack Developer - Averlon
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.
Company social profiles
Similar jobs (10)
React.js
tailwindcss
Redux/FluxJavascriptPosition: Sr. React Developer
Experience: 3 - 6 Years
Location: Hyderabad (Hybrid)
Job Summary
P99soft is looking for a skilled React Developer with 3 - 6 years of hands-on experience, including expertise in TypeScript, unit testing frameworks (Jest & React Testing Library), and micro-frontend architecture. The ideal candidate will have strong proficiency in building scalable, high-performance web applications using React and modern front-end technologies.
Key Responsibilities:
- Develop, test, and maintain responsive web applications using React.js and TypeScript
- Implement and maintain unit tests using Jest and React Testing Library
- Build scalable UI components with micro-frontend architecture
- Collaborate with UX/UI designers and backend developers to deliver high-quality solutions
- Write clean, modular, and maintainable code following best practices
- Integrate RESTful APIs and third-party services
- Troubleshoot and debug issues, and optimize performance across platforms
- Participate in code reviews, agile ceremonies, and sprint planning
- Ensure cross-browser compatibility and mobile responsiveness
- Maintain technical documentation and contribute to knowledge sharing
Required Skills:
- Strong proficiency in React.js, including hooks, lifecycle methods, and state management
- Expertise in TypeScript
- Solid understanding of JavaScript (ES6+), HTML5, CSS3, and Tailwind CSS
- Experience with Redux, React Router, and UI libraries like Material UI or Ant Design
- Practical experience with unit testing using Jest and React Testing Library
- Familiarity with micro-frontend architecture
- Experience integrating and consuming RESTful APIs
- Good understanding of Git and version control practices
- Hands-on experience with Webpack, Babel, and modern build tools
- Familiarity with Agile/Scrum methodologies
Benefits
- Competitive salary and performance-based bonuses.
- Comprehensive health insurance.
- Paid time off and flexible working hours.
- Professional development opportunities and support for continuing education. Udemy Learning Licenses to enhance skills and stay up-to-date with the latest technology.
P99soft is an equal-opportunity employer
P99soft is an equal-opportunity employer. At P99soft, we are committed to providing equal employment opportunities regardless of job history, disability, gender identity, religion, race, color, caste, marital/parental status, veteran status, or any other special status. We stand against the discrimination of employees and individuals and are proud to be an equitable workplace that welcomes individuals from all walks of life if they fit the designated roles and responsibilities.
Life@P99soft
At P99soft, we believe in creating a work environment that balances professional excellence with personal well-being. Our vibrant office culture is built on mutual respect, inclusivity, and a shared passion for innovation. We host regular team-building activities, workshops, and social events to foster a sense of community and collaboration among our employees. Join us and be part of a team that values your contributions and supports your growth
About Us
P99soft is a leading IT Services and IT Consulting company dedicated to making our customers' business operations seamless by providing them with digital services and applications using the latest technologies. We are committed to bringing excellence to all our creations. We need passion, empathy, and being customer-focused to achieve technical excellence. We believe in transparency through open communication and work with honesty and integrity while dealing with our customers and partners.
Our Vision: “To lead digital transformation for our customers, delighting them at every step, while empowering our employees and fostering success.”
Our Mission: “To attain our objectives within a framework of integrity, transparency, and respect for our clients, employees, partners, and the community, fostering mutual trust and sustainable growth.”
Journey towards digital transformations begins here. Our talented teams help you make informed decisions, enhance operation efficiencies, create state-of-the-art visual interfaces, and design dynamic workflows to bring a better customer experience. Our engineering teams take complete ownership of assigning the right talent and architecting solutions using the latest technologies.
Angular (2+)JavascriptHTML/CSS
React.jsResponsibilities
-
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
HTML/CSS
Bootstrap
jQueryJavascript
AngularJS (1.x)● Work closely with the marketing team to build high conversion landing pages. Maintain and
improve our marketing codebase
● Contribute ideas and efforts to improve the quality and efficiency of the marketing workflows
● Write code using agile methods and tools. Plan, create and execute (manual and automated)
frontend tests.
● Staying up to date with current technologies and providing insights on cutting-edge software
approaches, architectures, and vendors
Required Skills:
● Minimum 3+ years of experience in Front-end development.
● Fluency in HTML,CSS,JS, jQuery,Bootstrap
● Good knowledge of Node.js and Rest APIs
● Experience in page speed optimization
● Experience in writing responsive and cross-browser compatible frontend code
● Good understanding of the modern frontend ecosystem.
● Strong problem-solving skills. Willingness to learn and ability to flourish in a dynamic,
high-growth, entrepreneurial environment
● Hands-on, self-starter, capable of working independently.
● True love for technology and what you do.
● Maniacal attention to detail.
Good to have:
● Experience in WordPress theme development
● Understanding of basic technical SEO principles
● Knowledge of a frontend framework like Angula
JavascriptHTML/CSSBootstrapHi,
Requirements:
>5+ years of IT experience in the development of scalable consumer-facing digital solutions (consumer websites, web applications, mobile sites etc) in HTML, CSS3 and JavaScript framework is required
>Strong understanding of semantic HTML/HTML5, CSS/CSS3.
>Experience in frameworks like Bootstrap, Foundation and CSS preprocessors like SASS and LESS.
>Strong knowledge of JS-based build tools like Grunt, Gulp, and Webpack
>Experience in javaScript with a good grasp of advanced JavaScript-based Vue JS, React JS and Angular JS
>Experience with implementing SVG animations and expertise in GreenSock(GSAP) will be an add on qualification.
>Proficient understanding of code versioning tools, such as Git
>Knowledge of HTML5 responsive email development is desirable.
>A Bachelors of Computer Science or a related field is required
Soft Skills:
> Quality driven and extremely detail-oriented
> Strong work ethic
> Communicates clearly, effectively, and quickly - both verbally and written
>Ability and willingness to continuously learn, explore and master emerging technologies.
React.jsNodeJS (Node.js)TechUnity is looking for a highly motivated and skilled React JS / React Native software developer who is comfortable with both front and back-end programming. Developer will be designing and implementing attractive and intuitive Web-based user interface and developing backend services to support front-end requests. Developer will be required to see out a project from conception to final product, requiring good organizational skills and attention to detail.
Other Responsibilities:
· Seeing through a project from conception to finished product
· Designing and coding of frontend web architecture
· Designing user interactions on web pages
· Developing backend server architecture
· Creating specification for servers and databases needed
· Ensuring responsive performance of applications.
· Designing and developing APIs.
· Meeting both technical and consumer needs.
· Staying abreast of developments in web applications and programming languages
· Good problem-solving skills.
· Excellent verbal communication skills
React.jsAngular (2+)AngularJS (1.x)
Vue.jsHTML/CSSThe Role:
You are a ReactJS / React Native Developer passionate about building world-class mobile and web applications with performant backend and glitch-free experience. You will be part of a team which will be delivering technology that enhances the in-app experience for our users and enables our development team s to build mobile apps easier, faster and more efficient. You will build compelling and engaging applications for Web and Mobile platforms. Employing your experience in latest ReactJS, React Native, HTML / CSS / Flexbox with discipline in collaboration and pair programming. Our clientele majorly comprises of BFSI companies, so experience in Financial Applications and enterprise data security will be a big-plus.
Responsibilities:
• Contribute to an Agile team to build web and mobile applications, APIs, SDKs and other tools as required
• Collaborate with various teams within Iorta to realize the requirements for the project and
Rapidly deliver iterative solutions
• Provide task plans and follow trends in technology and suggest new approaches to application design and development
• Review and evaluate designs for compliance with development guidelines
•. Implement best practices and methods to improve the development process within the
team and organization
React NativeReact.jsAngularJS (1.x)JavascriptJavascriptHTML/CSSjQueryBootstrap
Follow CutshortShubham Vishwakarma
Full Stack Developer - Averlon