Frontend Developer

What you’ll do: 

● Own and build next-generation web applications which are efficient, reusable front-end abstractions 

and systems. 

● Explore and design lively and compelling consumer experiences. 

● Ensure that all the assigned systems are performing to scale. 

● Actively participate in design and code reviews to build robust applications and prototypes 

● You will mentor junior engineers on design and proper coding practices 

What you will need: 

● A deep expertise in React, Javascript, HTML5 and CSS3. 

● Understanding of browser internals and a basic understanding of the network stack. 

● Understanding of common design patterns followed in front-end projects. 

● Basic awareness of application security practices and deployment techniques for front-end projects. 

● Should have sound knowledge in computer science fundamentals like data structure, object-oriented 

programming and possess excellent communication skills. 

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.

About Navi 

Navi is one of the fastest growing financial services companies in India providing Personal  & Home Loans, Insurance and Mutual Funds with a digital first approach. At Navi, our  mission is to build financial services that are simple, accessible and affordable. 

Founders: Sachin Bansal & Ankit Agarwal 

Know what makes you a “Navi_ite” :

1.Perseverance, Passion and Commitment

• Passionate about Navi’s mission and vision 

• Demonstrates dedication, perseverance and high ownership 

• Goes above and beyond by taking on additional responsibilities 

2.Obsession with high quality results

• Consistently creates value for the customers and stakeholders through high quality outcomes 

• Ensuring excellence in all aspects of work

• Efficiently manages time, prioritizes tasks, and achieves higher standards 

3.Resilience and Adaptability

• Adapts quickly to new roles, responsibilities, and changing circumstances,  showing resilience and agility 

Key responsibilities:

• Develop the front-end for our products and collaborate with designers, other engineers, and product managers to build new features, iterate on current features, and build a world-class user experience;
• Build responsive & reusable UI components using any one Javascript framework: React, Angular, VueJS, as per the specifications and guidelines;
• Be familiar with Responsive Web Design, common Web UX patterns and anti-patterns;
• Should have hands-on experience of improving web performance including optimising page load, rendering, caching etc;
• Be great at debugging, including identifying page speed and performance bottlenecks, using tools like Chrome Dev Tools, React Dev Tools etc.

Required Skills:

• You should be well versed with RESTful APIs and it's best practices;
• You should be proficient with all core features of React or similar frameworks including Redux or Fluxn pattern;
• You should have experience in JavaScript (React JS/Redux), HTML, CSS, JQuery, HTTP for the Web platform;
• Strong proficiency in writing clean, robust javascript code is a must;
• You should be comfortable working with version controlled code environments ( eg. GIT);
• You should possess strong Object Oriented design and programming skills;
• You should have an understanding of XML, JSON, DOM, and w3c standards.

Do you love React / Javascript / Frontend?

Like solving different problems, up for learning new stuff every day? Do you Like frontend but also like full stack? Like JavaScript but also like other languages? We are looking for the constantly curious and willing-to-try-new things type of people! 

We are mostly React but not only, but we do also push into all types of strange and common.

Typical tools in our toolbox are:

React
Typescript
Redux (RTK toolkit)
Recoil
Create React App
React-Router
CSS / Sass
a lot of vanilla JS
Figma
Git

Great, if you are familiar with:

• Minimum 4 yrs of experience in React JS.
• Experience building single page frontend applications and reusable components
• Solid experience with the core React ecosystem like React Router, Redux etc.
• Master of HTML, CSS, and other display-centric web technologies.
• Comfortable using git, docker.
• Proficient in Javascript (ES6 / ES7) programming with at least 4/5 years of
• experience.
• Good knowledge in writing frontend test cases.

• Good understanding of asynchronous request handling, partial page updates and Promises.

• Strong Problem Solving skills.

• Strong skills in Javascript and ability to write well documented, clean JavaScript Code.

• Very good understanding of ES6/ES7, JSX and Component Lifecycle.

• Deep practical knowledge of native Javascript, ES6, understanding the internals of frameworks like ReactJS, Angular or any other view libraries.

• Knowledge of modern authorisation techniques, such as JWT Tokens.

• Good understanding of common front-end development tools such as Babel, Webpack, NPM, Yarn etc.

• Has strong communication skills and self-accountability.

About Fabstudio Infotech (http://www.fabstudio.co):
Fabstudio Infotech is a multi-skilled IT services provider company with core competencies in website design and development, e-commerce website, mobile app development, customized software development, cloud services, and CRM solutions. Our comprehensive full-service value offering allows you to streamline the process of conceptualizing, designing, development, implementation, supporting and managing the application lifecycle.

About the Job Profile:

Selected day-to-day responsibilities include:

1. Work on React.js & Node.js
2. Work on ongoing projects
3. Understand product requirements and specifications
4. Handle large web applications and websites
5. Do the research and keep abreast with current design trends
6. Write well designed, testable, and efficient code by using best software development practices
7. Create a website layout/user interface by using standard HTML/CSS practices
8. Integrate data from various back-end services and databases
9. Cooperate with web designers to match visual design intent