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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.
Role Summary:
Front-end Developer who would contribute towards building a highly flexible and scalable front-end by bringing deep core technology expertise.
Job Description:
- Ensure proper offline access using service workers and PWA
- Develop components which are SEO friendly
- Have experience in server-side rendering
- Drive evolution of application performance
- Ensure project scalability by having good project architecture
Skill Requirements:
- Good experience in HTML5, CSS3, JS - React
- React native
- Angular - Redux exposure - Have handled service workers and PWA caching and updates - CSS pre-processors knowledge like sass - Knowledge of webpack, parcel, grunt etc.
-Knowledge of pre-processors like SASS/LESS, CSS-Modules.
- Architecting and automating the build process for production, using task runners or scripts (Gulp / Grunt)
-Have an eye for good UI/UX, Progressive Web Apps, Responsive Design
-Interested in writing code, actively experimenting along with learning new things.
Individual applying to the role should ideally have the following attributes
-Passionate about Frontend Development and continually follow the platform & innovations
-Strong and innovative approach to problem solving and finding solutions
-Interested in working on fast-paced
- Excellent communicator (written and verbal, formal and informal)
- Flexible and proactive/self-motivated working style with strong personal ownership of problem resolution
- Ability to multi-task under pressure and work independently with minimal supervision.
- Ability to prioritize when under pressure.
- Experience: 5+ years of professional experience in front-end development with a strong focus on React.js.
- Technical Skills: Proficiency in JavaScript (ES6+), HTML5, CSS3, and modern JavaScript frameworks/libraries.
- React Expertise: Deep understanding of React.js and its core principles, including hooks, context API, and state management.
- Tools: Experience with version control systems (e.g., Git), build tools (e.g., Webpack), and testing frameworks (e.g., Jest, React Testing Library).
Preferred Qualifications:
- Experience with: Knowledge of TypeScript, Redux, and modern front-end build pipelines and tools.
- Design: Familiarity with UI/UX design principles and responsive design.
- Blockchain: Understanding of blockchain technologies and cryptocurrency concepts is a plus.
Type, Location
Full-time, Remote
Desired Experience
2+ years
Roles and Responsibilities :
● A great JavaScript developer who is proficient with React.js (preferred).
● 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 a quality product is important.
● Generating error-free code and compliance with SOW
● Managing development processes & working notes
● Growing technical skills and being an active part of the technical transformation in the company
● When required manage client communication for projects assigned
● Reporting on project activities and ensuring timely completion of projects/assignments
● Guiding Jr. Developers for the completion of their work
Desired Candidate Profile
Primary Skills :
● Hands-on experience in React.js, HTML/CSS, JavaScript, and People Management.
React.js Developer Job Description
We are looking for a skilled react.js developer to join our front-end development team. In this role, you will be responsible for developing and implementing user interface components using React.js concepts and workflows such as Redux, Flux, and Webpack. You will also be responsible for profiling and improving front-end performance and documenting our front-end codebase.
To ensure success as a react.js developer, you should have in-depth knowledge of JavaScript and React concepts, excellent front-end coding skills, and a good understanding of progressive web applications. Ultimately, a top-class react.js developer should be able to design and build modern user interface components to enhance application performance.
React.js Developer Responsibilities:
- Meeting with the development team to discuss user interface ideas and applications.
- Reviewing application requirements and interface designs.
- Identifying web-based user interactions.
- Developing and implementing highly responsive user interface components using react concepts.
- Writing application interface codes using JavaScript following react.js workflows.
- Troubleshooting interface software and debugging application codes.
- Developing and implementing front-end architecture to support user interface concepts.
- Monitoring and improving front-end performance.
- Documenting application changes and developing updates.
React.js Developer Requirements:
- Bachelor’s degree in computer science, information technology, or a similar field.
- Previous experience working as a react.js developer.
- In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
- Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
- Experience with user interface design.
- Knowledge of performance testing frameworks including Mocha and Jest.
- Experience with browser-based debugging and performance testing software.
- Excellent troubleshooting skills.
- Good project management skills.
Job description
Job title: Sr. React Js Developer
Job Description:
- 3+ years of extensive experience in developing the Single Page Application with Web
responsive design for mobile and web using React JS, HTML 5, CSS 3 and Bootstrap. - Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object
model. - Experience with popular React.js workflows (such as Flux or Redux)
- Familiarity with RESTful APIs
- Knowledge of modern authorization mechanisms, such as JSON Web Token
- Thorough understanding of React.js and its core principles.
- Experience with common front-end development tools such as Babel, Webpack, NPM,
yarn, etc. - Familiarity with newer specifications of EcmaScript (ES6)
- Ability to understand business requirements and translate them into technical
requirements - Good verbal and written communication skills
- Excellent analytical and problem-solving skills.
- Strong ability to drive end-to-end service design from usability and experience
perspectives. - Working knowledge of ADA and designing for users with unique physical and mental
challenges.
Desired Skills:
- Meeting with the development team to discuss user interface ideas and applications.
- Reviewing application requirements and interface designs.
- Identifying web-based user interactions.
- Developing and implementing highly-responsive user interface components using React
concepts. - Writing application interface codes using JavaScript following React.js workflows.
- Troubleshooting interface software and debugging application codes.
- Developing and implementing front-end architecture to support user interface concepts.
- Monitoring and improving front-end performance.
- Documenting application changes and developing updates
- Work with the client and internal web development team to design new products or enhancements.
- Take part in system development including analysis, coding, and testing in an agile product development team.
- To develop business requirements into cost-effective and elegant technical solutions.
- Perform peer design and code reviews with other software engineers.
- Help to evaluate requirements and solutions from a technical perspective and implement custom built solutions.
- Perform estimates of user stories that are to be implemented to help with product engineering planning.
- Work with backend development members to co-create APIs for frontend consumption
- Mentor less experienced team members on proper standards/techniques to improve their development practices and efficiency.
- Write scripts to perform unit testing, functional testing and assist with user acceptance testing support.
- Optimize UI for efficiency and maintainability
- Perform non-production and production deployment processes as scheduled.
- Provide on-going support to the application.
Candidates with experiencec in SaaS product development, deployment and Code Versioning using Git/BitBucket, and exposure to agile development practices will have an added advantage.














