React.JS

Job Title: Senior React.js Developer

Experience: 5+ Years

Location: Pune

Employment Type: Full-Time

Job Summary:

We are looking for a skilled React.js Developer with 5+ years of experience to join our team. You’ll build scalable, high-performance web and mobile applications, work closely with designers and backend developers, and ensure responsive and user-friendly UI/UX across platforms.

Key Responsibilities:

• Develop dynamic, reusable components using React.js, JavaScript, HTML5, and CSS3
• Integrate wireframes and UI/UX designs into functional front-end interfaces
• Ensure cross-browser/platform compatibility and responsive design
• Optimize apps for speed and scalability
• Implement and maintain unit and E2E tests (Jest, Playwright, Puppeteer)
• Integrate with RESTful APIs and backend services
• Maintain code quality and performance standards
• Collaborate with designers, product managers, and backend engineers
• Mentor junior developers and contribute to best practices

Required Skills:

• 5+ years in front-end/UI development
• Strong in React.js, JavaScript (ES6+), HTML5, CSS3
• Experience with Redux, SASS/LESS, REST APIs
• Familiarity with performance optimization tools
• Solid understanding of UI/UX design principles
• Excellent communication and team collaboration skills
• Bachelor’s degree in Computer Science or related field

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.

We are looking for a talented React Developer with 1-3 years of experience to join our growing team. As a React Developer at [Company Name], you will play a key role in building and maintaining the front-end of our AI-driven products. You will collaborate closely with our product designers, AI engineers, and back-end developers to create user-friendly interfaces that are both functional and aesthetically pleasing.

Job Description

We're a fast growing fintech startup based in Pune. In June 2019, we launched, an app to check and monitor credit scores. It is the only app in India that helps consumers improve their credit score via an AI-based score planner.

WE are on a mission to re-imagine credit and payments from first principles and is building a mobile-first credit card in India.

• Roles & Responsibilities:-

Strong proficiency in JavaScript.

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 Ecma Script.

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.

Our client is the fastest growing company in the space of student mobility in Asia Pacific as per Financial times.

Job Location : Pune

More about them

- Long-term accommodation booking platform for students (think booking.com for student housing).

- Helps 80M students worldwide, find and book full-time accommodations near their universities, without the hassle of negotiation, nonstandardized and cumbersome paperwork, and broken payment process.

- Leading student housing platform globally, with 1M+ student housing units listed in 6 countries and across 80 cities.

- Growing rapidly and targeting $400M in annual gross bookings value by 2022.

Key responsibilities

Design and Build
Designing and developing user interface components and implementing
them following well-known Javascript (React.js) concepts and workflows.

You will ensure that these components and the overall application are
robust, easy to maintain and scalable.SDE 3 - Frontend Developer 2

Maintain a very high standard of UI Structuring, layout and ensuring a
delightful visual experience for users.

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 are important.

Collaborate and Lead Collaborating within your product streams and team to bring best practices and leverage world class tech stack.

Measurable outcome You will need to set quantifiable objectives that encapsulate quality attributes of a system. The fitness of the application is measured against set marks.

Technical Skills
4+ years of experience, working with frontend technologies.
Experience working with modern Javascript libraries and tools like ReactJS
(mandatory), ES6/ES7, Webpack, Gulp.
Strong knowledge of HTML+HTML5, JS, CSS+CSS3
Experience leading multi-engineer projects and mentoring junior engineers.
UI Performance - should have hands-on experience in optimizing page load,
rendering, caching
Experience with unit testing in any modern javascript libraries
(Jest/Mocha/Jasmine)
Proficient with creating UI components, interaction patterns, task flows,
converting a design to web pages
Keeps an eye on new front-end ecosystem changes

Regards
Team Merito

IRIS Business Services Ltd is looking for a Senior Front-end Angular Developer who is passionate about design and programming to work in an exciting space of tax technology. Responsibilities include implementing visual elements and their behaviours with user interactions. You will work with both front-end and back-end web developers to build all client-side logic. You will also be bridging the gap between the visual elements and the server-side infrastructure, taking an active role on both sides, and defining how the application looks and functions.

Requirements:

• 2+ years working in front-end web development
• Front end technologies: Angular.js (1.x), Angular (4-12), HTML5, CSS3, jQuery, Ajax, Bootstrap
• Excellent Javascript knowledge and programming experience with ES5/ES6
• Solid understanding and development experience in Angular
• Experience consuming REST APIs
• Experience with client-side architecture and design patterns
• Awareness of cross-browser compatibility issues and client-side performance considerations
• Solid understanding and extensive experience with version control tools like Git, SVN or Mercurial
• Exceptional problem solving and ability to work independently
• Exceptional learning skills
• Fluency in both oral and written English

Responsibilities:

• Implementing the front-end logic that defines the behavior of the visual elements of a web application.
• Actively involved throughout the project lifecycle, often times starting with rapid prototypes early in the design phase
• Writing clean, production-ready code, which will be integrated with the backend/APIs
• Will be supported by back-end web developers, who are responsible for server-side application logic
• Will be supported by front end designer who specialize in markup and styling

Job Role

We are looking for experienced front-end developers to develop and add new features to our Product Stack - everything from UX design and architecture to coding & testing. The role will involve working, side-by-side, with our product team to foster a positive environment and make sure the company’s mission and goals are effectively implemented.

What's in it for you?  You'll be part of a growing team, delivering value to our customers through creative improvements to Actiotech's flagship product. You'll work closely with design and product management, influencing the direction of the product and helping the team get there. 

Responsibilities:

• Write clean, high-quality, high-performance, maintainable code
• Are a self starter and is able to bring in experience for the improvement of the product UX/UI
• Have strong analytic skills, a drive to succeed and a strong customer orientation
• Can support development activities in POC and Product feature enhancements
• Work well within an agile team collaborating with other engineers to deliver an exceptional user experience for our customers

Requirements:

• 2+ years of professional software development experience with JavaScript 
• 1+ year of professional experience with React
• Excellent written and oral communication skills in English
• Eye for detail and good user experience design skills