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Senior React JS Developer
Senior React JS Developer
iRage's logo

Senior React JS Developer

Jyosana Jadhav's profile picture
Posted by Jyosana Jadhav
4 - 7 yrs
₹25L - ₹40L / yr
Mumbai
Skills
skill iconReact.js
skill iconJavascript
DOM
WebSocket
Chart.js
Trading
D3.js
skill iconHTML/CSS
RESTful APIs
webpack
Babel
jest
Agile/Scrum
skill iconGit
Market data
skill iconNodeJS (Node.js)
skill iconPython
skill iconGo Programming (Golang)
skill iconRedis
Apache Kafka
RabbitMQ
skill iconAmazon Web Services (AWS)
Windows Azure
Google Cloud Platform (GCP)
Progressive Web Apps (PWA)

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.



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Shubham Vishwakarma

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About iRage

Founded :
2009
Type :
Services
Size :
100-1000
Stage :
Profitable

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.

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Jyosana Jadhav

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