Frontend Developer

NEED TO HAVE :

1) Have some knowledge of front end like React.JS

2) HTML, CSS

3) Strong in Javascript concepts

4) Good communication skills

5) Loves to code

GOOD TO HAVE :

1) Experience with type script will be a plus

2) Experience with Nest.JS framework will be a plus

3) Strong hold on ES6 principles.

4) Familiar with TDD ( Test Driven Development ) will be a plus.

5) Familiar with working in CI / CD will be a plus

6) Micro-Service architecture knowledge will be an added benefit.

You can directly WhatsApp us on nine three one six one two zero one three two

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.

Job description:- 

• Strong experience of Angular 2+ and above along with other technologies like HTML5, CSS, jQuery, AJAX with good knowledge of ECMA Scripts.
• Strong knowledge of JS Fundamentals.
• Design & development of Angular applications as per desired specifications, along with experience in frameworks/libraries like jQuery, Bootstrap, Typescript etc.
• Architecture design, development, testing and maintenance of Web Apps, Implementation based on Angular Application MVC Patterns.
• Own end to end product modules/features (from the requirement to going live)- Design & code review, troubleshoot & help team members on issues.
• Gather requirements by interacting directly with the end-users.
• Research on open source framework/technology required for developing the feature/application.

SUMMARY:

Seeking individuals with demonstrated experience in Back-End Web Development

responsible for managing the interchange of data between the server and the users. Your

primary focus will be development of all server-side logic, definition and maintenance of the

central database, and ensuring high performance and responsiveness to requests from the

front-end. You will also be responsible for integrating the front-end elements of our AI SaaS

application modules and solve revenue-growth problems, at the intersection of demand and

supply, which are faced by the Fortune 1000 CPG/FMCG companies.

Frontend Engineer - (6-10 years’ experience)

As a Front End Web Engineer you will be responsible for building the next generation of user experiences. We need a highly motivated and skillful engineer to work with HTML, Typescript/JavaScript, and CSS/Sass and related tooling, frameworks, and libraries. Attention to detail and a dedication to deliver a high-quality, stable delivery is essential.

If you want to be part of this amazing team, this position is for you.

Key Skills:

• Proficient in at least one JavaScript framework like Angular, React, VueJS, or equivalent
• Proficient in Typescript, HTML, CSS3 usage in building large scale applications
• Expertise in front-end design and JavaScript libraries such as AngularJS, ReactJS, jQuery, and VueJS
• Passion for building a rich and innovative user experience
• Strong computer science fundamentals in design, data structures, and problem solving
• Experience in Single Page Application architecture

Description:

• Build pixel-perfect, robust and, accessible user interfaces on the web
• Drive independently a project from inception to production deployment with a strong focus on performance and robustness
• Follow our software development process including writing unit tests, perform code reviews etc.
• Ability to learn and apply new technologies quickly
• Work effectively with cross-functional teams to develop features
• Provide support for production deployments
• Demonstrate ability to deliver results on time with high quality
• Experience handling distributed vendor resources

ZoomRx is a rapidly-growing market research and consulting company founded upon the belief that there is important work to be done at the intersection of data, healthcare, and technology. We help some of the world’s biggest biopharmaceutical companies answer questions no one else can. We use innovative data analytics expertise like our AI-based platform, Ferma to provide an edge to our clients within their highly competitive marketplace. We support our clients through their entire business lifecycle; providing market intelligence that helps them launch new therapies, optimize promotional efforts, defend against competitive pressure, shape marketing strategies, and much more.

At ZoomRx, we have a flat organization structure where everyone is encouraged to take risks, learn from mistakes, and continuously grow towards realizing their career goals. We offer a collaborative, environment that optimizes for:

We have offices in Boston, New York City, San Francisco, San Diego, and Chennai, and we are growing rapidly. To help fuel our growth, we are now looking for a Senior Software Development Engineer to join our vibrant community.

Do you like being part of such a team? Does ZoomRx seem like a community where you can see yourself growing while making an impactful contribution to what we do? If yes, we would want to hear from you.