Frontend Developer

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.

·      JavaScript, Typescript

·      Any UI Framework (web components) - primarily React.js

·      Rxjs

·      State Management frameworks - redux

·      Design Patterns

·      Jest / WTR for testing

·      Playwright, cypress - functional tests (good to have)

• Bachelor's degree in Computer Science, Software Engineering, or a related field.
• 2 to 12 years of professional experience in React Native development.
• Strong proficiency in JavaScript, TypeScript, and modern web technologies.
• Experience working with RESTful APIs and integrating third-party libraries.
• Solid understanding of mobile app architecture and design patterns.
• Knowledge of mobile UI/UX best practices and principles.
• Familiarity with version control systems such as Git.

1) Understand client requirements and functionalities. 

2) Write well-designed, testable, efficient code. 

3) Responsible for solving complex technical issues. 

4) Ensure quality projects are delivered within defined timelines. 

5) Active involvement in client communication to understand functional requirements. 

6) Maintain high standards of quality for code, documentation and other deliverables. 

Required Skills 

1) Good experience in Angular Latest Versions 

About the job:

It’s not just a job but an opportunity to grow.

We are looking for frontend engineers to join our team where their responsibility will be to build, evolve and maintain user interfaces in a highly technical and rewarding environment.

We're Looking For Someone Who:

• Has a thorough understanding of modern JavaScript.
• Has strong experience and knowledge of React.js
• Has good experience with HTML/CSS
• Has working experience with Typescript
• Is independent, curious and smart.
• Loves building beautiful, reusable interfaces and learning new skills, languages, and frameworks
• Likes being part of a healthy team with fun people working on worthy challenges

To us, it doesn’t matter if you’re not highly proficient in all of the requirements. If you’re good at React with experience in JS, an unwavering learning attitude, a problem-solving mind, and an eye towards a higher career trajectory then we’ll be delighted to have you.

We will ensure that you have all the necessary tools and knowledge to work with the clients. And for this, we will provide the necessary tools to succeed with us and move forward leaps and bounds in your career.

Requirements:

1. React.js: 2+ years of experience
2. React Hooks: 2+ years of experience
3. Javascript: 2+ years of experience (ES6+ recommended)
4. HTML/CSS: 1+ years of experience(Knows ins/outs of CSS with responsive approach)
5. GIT
6. Redux

Nice to have:

1. Node.js
2. Material UI
3. Mongo/SQL

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.

 What you need to have:

• Minimum of 4 years (and above) experience in modern UI frameworks like ReactJS web/Native
• Experience and expertise in HTML, CSS and Javascript
• Familiar with UI design concepts and user interface design
• Experienced user of the GIT/GITHUB repository
• Experience with hands on UI development
• Experience in modern UI frameworks like ReactJS web/Native

• Very Strong communication and consulting skills
• Strong front-end development skills, experience with JavaScript libraries/frameworks mainly Angular JS Preferably Version 7 or Version 5
• Experience working with server-side JavaScript Frameworks and build tools (node.js, bower, grunt, gulp)
• Demonstrable experience developing large-scale applications using one or more MV* patterns (MVVM, MVC, MVP)
• Expertise in developing single page web applications using front-end routing, consuming JSON-based RESTful APIs, client-side templating
• Strong competency in responsive layouts leveraging CSS and media queries and related UI frameworks (e.g., Bootstrap, Foundation)
• Experience with CSS preprocessors (e.g., Sass, LESS)
• Experience with code analysis tools (e.g., JSLint, JSPerf)
• Practical knowledge of web page optimization techniques and guidelines for fast page load times
• Strong understanding of Ajax and/or promises
• Experience working in an agile, multidisciplinary team.
• Experience working with a distributed version control system (git, mercurial)
• Experience writing unit tests in one or more of the following: karma, mocha, chai, sinon, jasmine, jest
• Experience working on AWS. Basic understanding of Security Groups/ VPC etc.
• Experience on working with & integrating with microservices
• Experience on developing/ using CI/CD pipeline using Jenkins/ Git