Senior Frontend Developer

Role Responsibilities:

As a Software Engineer- Frontend, your key responsibilities will include:

• Design and develop high-volume, low-latency applications for mission-critical systems, delivering high-availability and performance.
• Ensure successful delivery of all technology tasks assigned with high quality. Developing and executing as per the project plans.
• Contribute in all phases of the development lifecycle: concept, design, build, deploy, test, release to app stores and support.
• Diagnose performance issues, fix bugs (including crashes and ANRs) to increase the functionality of the application.
• A proven team member and individual contributor with strong analytical and stakeholder management skills.
• Write well designed, testable, efficient code.
• Bring innovative ideas to meet our company’s technical needs and enhance applications by identifying opportunities for improvements.
• Communicate key project data to team members and building cohesion amongst team members.

Skills needed:

In order to be successful in this role, you must have the following skills & experience:

• In-depth knowledge of JavaScript, TypeScript, CSS, HTML, and front-end languages.
• Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
• Should have built web apps, CMS, admin panels that are deployed to production.
• Should have experience with frontend architecture including microfrontend, and state management
• It will be an addon if you can also code mobile apps in React Native.
• Should have experience of integrating backend API's and managing state locally.
• Should understand complex business logic and be able to convert that into code.
• Good to have capability of converting design into HTML code.
• Good to have exposure to building video streaming and real time chat platform using webrtc & socket.io.
• Good to have understanding of docker containerization and Kubernetes.
• Should have an understanding of how to build and deploy a ReactJS application
• Experience in dealing with tech and business stakeholders.
• Strong understanding of Agile methodology.
• Hands on experience in Dev Ops.
• Proven analytical and problem-solving skills.
• Excellent communication skills and ability to interact effectively at all levels across technology teams.
• Can work well both individually or in a team by taking a collaborative approach to problem solving and delivery.

Good to have skills:

• Self-starter and highly motivated individual who is prepared to use his/her own initiative in understanding and following up issues.
• Takes ownership and responsibility of problems through to resolution.
• Keen to learn business processes and technical skills.
• Ability to work under pressure and multi-task when necessary.
• Hands on experience using tools like Trello, Gitlab, Zoom.

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.

Your primary role will be the implementation of the application for either desktop or mobile devices with a focus on performance. With your understanding of AngularJS  / React JS best practices you will create modules and components with which you architect the application. You will take existing design and front-end templates and enhance them with CSS animations and implement idiomatic markup. You will team up with the back-end developers to connect to.

Responsibilities

• Building, optimising and maintaining front-end web apps
• Maintaining high performance and compatibility across platforms and devices
• Writing tested, idiomatic, and documented JavaScript, HTML and CSS
• Understanding what is needed for a smooth workflow between yourself, the front-end developers and designers
• Communicate thoroughly with the back-end department to help build a best-practice RESTful API
• Integrate external web services
• APIs using standard methods. A thorough understanding of the components of the platform is essential.   

Qualifications

• Bachelor's or Master's degree in Computer Science, Information Systems, Engineering or equivalent
• 1-3 years of experience in JS based development

Skills

• Programming Expertise In JavaScript/HTML5 / Angular JS v7+ / React JS v16, Express JS, Bootstrap.
• Hands-on Working Experience Of MVC Frameworks Like Angular.js & React.js.
• Excellent Communication Skills.
• Exposure To Sass, Grunt, Node Js.

PREFERRED QUALIFICATION AND SKILLS:

• In depth knowledge of HTML5 • In depth knowledge of CSS3 (Less, Sass, Stylus is a plus), knowledge of BEM methodology is preferred

• Detailed knowledge of JavaScript (ES2015 is a plus) is a must

• Good knowledge of Node.js & npm

• Gulp or Grunt experience is a plus • Experience with Atomic design paradigm is a plus

• Experience in any JS framework(Angular, React + Redux, Vue, etc.,) is must

• Understanding of Web Accessibility WCAG guidelines.

• Must be able to mentor and guide junior technical resources.

• One who is proactive and come forward with technology related initiatives. Motivated selfstarter.

 • Good Communication skills. English - Oral and Written.

• Identify bad code practices in JavaScript and write new analyzers to detect them.
• Improve the coverage of automatically fixable issues.
• Ensure fewer false-positives are reported by the analyzer.
• Work on the internal tools that support analysis runtimes.
• Contribute to open-source static analysis tools.

• Strong foundational knowledge in Computer Science.
• At least 3 years of professional software development experience in JavaScript.
• Understanding of the nuances of execution of the source code (AST, data flow graphs, etc).
• Familiarity with JavaScript practices followed in the industry.
• Native experience with Linux/Unix environment.
• A focus on delivering high-quality code through strong testing practices.

If a misaligned shadow bothers you, we already like you 😆

• Master's / Bachelor’s degree in Computer Science, Software Engineering, or Self taught developer.
• 3+ years of experience in fundamentals of web, HTML, CSS and JavaScript.
• Familiarity with JavaScript frameworks such as Vue or React.
• Understanding of product design, user experience and skills to recreate and match high quality pixel perfect designs and can go above and beyond in detailing.
• Has ability to build a ground up resoluble components and in-house UI system that can scale across the product.

A collaborative role with Individual ownership ✅

• Ownership of developing UI related features. Work with with the rest of the engineering team to develop, launch or maintain features.
• Take ownership of design <> dev collaboration and participate in the education of both sides.
• Work closely with design team and become a bridge between engineering and design.
• Maintain code integrity.

The Role

We are looking for full-stack developers with experience in building user interface components for serverless applications using React. 

The role involves working with the product management team, understand the business requirements, and take full responsibility of design, development, test and release of the applications. 

Requirements:

• Passion for building and delivering great software with a strong sense of ownership. 
• 2+ years of experience in building web applications using React with strong CSS skills.
• Independently develop new user-facing features from designs and wireframes
• Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
• Experience with popular React.js workflows (such as Flux or Redux)
• Building reusable components and front-end libraries for future use

Good to have:

• Knowledge of modern authorization mechanisms, such as JSON Web Token
• Knowledge of AWS platform and scalable application architecture
• Experience with Build and Release, Agile processes and Estimation/Planning
• Knowledge of CSS pre-processors like SCSS and LESS