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.

We are building new-age billing and pricing infrastructure for SaaS companies. As SaaS pricing evolves from vanilla subscription-based models to more granular usage-based models, billing and pricing infrastructure needs to be completely reimagined.

We're building our founding team and are looking for a front-end developer, who can take ownership of the user-facing side of our product. Your primary roles and responsibilities will evolve as the team grows.

Responsibilities:

• Taking full ownership of building a pixel-perfect frontend product
• Understanding code quality, maintainability, modularity, and scalability
• Break down large tasks into independent smaller chunks
• Implementing good testing practices to ensure rapid iteration
• Communicating with both technical and non-technical stakeholders to understand their points of view and to discuss your own ideas

Requirements:

• A basic understanding of backend development is a plus
• 1-3 years of experience
• Capable of building the frontend part of web applications with minimal guidance
• Proficiency in Javascript, Reactjs, HTML, and CSS
• Knowledge of other Javascript frameworks is a plus. Tailwind CSS/Tailwind UI experience is preferred but not required.
• Comfortable with frontend build systems
• Good understanding of frontend optimization
• Good at making a designer's design come to pixel-perfect reality
• Good at making decent interfaces from basic wireframes (without a designer's help) when needed
• Understanding of SSR is a plus, but not required
• Familiarity with billing systems, CPQ, and accounting systems is a plus
• Entrepreneurial mindset
• Self-driven individual with high ownership and a strong work ethic
• Good communication skills.

Benefits:

• Health insurance
• Generous vacation policy
• Learning and development budget
• Team events and company offsites
• Choose your laptop
• Maternity and Paternity benefits

About us:

HappyFox is a software-as-a-service (SaaS) support platform. We offer an enterprise-grade help desk ticketing system and intuitively designed live chat software.

We serve over 12,000 companies in 70+ countries. HappyFox is used by companies that span across education, media, e-commerce, retail, information technology, manufacturing, non-profit, government and many other verticals that have an internal or external support function.

To know more, Visit! - https://www.happyfox.com/

We’re looking for an experienced Frontend Engineer to join our growing engineering team to help build and maintain HappyFox’s product offerings.

What you can expect as a Frontend Engineer at HappyFox:

• You will implement product features by writing clean, robust, reusable code with tests.
• You’ll work alongside the Product, Design, and, Backend Engineering teams to iterate on new features within HappyFox products.
• You'll help improve the overall experience of our product by improving the quality of the front-end features.
• You’ll help identify areas of improvement in the codebase and initiate projects to make HappyFox better.
• You’ll contribute to and follow our workflow process, alongside the rest of the Engineering team.

You should apply if:

• You have at least 3 years of relevant professional experience in building web applications with javascript frameworks like Ember.js or React.js.
• You have a sound knowledge of HTML, CSS, and JavaScript.
• You have experience building single-page web apps and a good understanding of best practices in front-end development.
• You have experience in reviewing other team members' code and providing actionable comments.
• You have experience in following industry-standard coding practices.
• You have experience optimizing code and looking for ways to resolve performance issues.
• You are passionate about solving complex technical problems and troubleshooting issues.

Roles and Responsibilities :

• Lead the delivery of high quality, innovative, flexible, cost-optimized, and scalable technical solutions that meet business requirements
• Design, Develop, test, and maintain software applications with MVC architectures, Microservices, and scalable cloud-native apps.
• Perform hands-on coding and provide thoughtful code reviews
• Mentor and lead team members to continuously improve quality and productivity of deliverables
• Demonstrate ability to work within an agile team as well as collaborate with many other teams on design and implementation strategies. Follow SCRUM Agile Development methodology
• Effective Communication Skills- An ability to express your ideas to the recipient & Co-ordinate and communicate with cross-functional team along with the client's team
• Problem Solving, Hustler - Get Stuff Done, Self-Disciplined Open-minded, User-Focused, Adaptive
• Lean Principles & Analytical Thinking
• Project planning, timelines, and milestones for execution and deliverables
• Participate in the Evaluation Review of your team member

Primary Skills

• Experience in building an enterprise web application using ReactJS as the frontend framework
• Experience with Redux and React Hooks
• Expert in HTML5, CSS3
• Experience in Bootstrap4 or CSS pre-processor like Less or Sass is highly desirable
• Strong knowledge of best practices and modern web design trends is necessary.
• Some experience with modern web-based typography.
• Excel at rapid prototyping and at writing good code.
• Experience with testing/debugging in multiple browsers and platforms.
• Expertise in using JavaScript
• Should have worked on REST client and WebSockets
• Should be able to write Unit testing using any one of the frameworks like Cypress, Jasmine, Karma, Jest, Enzyme, or any other similar framework.
• Should have experience in either one of the Build scripts like Gulp or Grunt or Webpack
• Low-Latency UI, Page optimization, and bundle build+caching
• Problem-solving and debugging skills
• Component-based architecture

At Spoonshot, we are building one of a kind SaaS tools for the F & B industry, the product you will develop is used by some of the largest food companies in the world. We are looking for programmers with a keen eye for design for the position of Front End Developer. Frontend Developers are responsible for ensuring the alignment of web design and user experience requirements, optimizing web pages for maximum efficiency and maintaining brand consistency across all web pages, among other duties.

An ideal candidate would be one who has a minimum of 2 years experience in designing and delivering high performing and pixel perfect frontend applications, who has passion for startups and can work independently under tight deadlines.

Your responsibilities will include:

• Reviewing application requirements and interface designs.
• Developing and implementing highly-responsive user interface components using React concepts
• Implementing web-based user interactions.
• Writing application interface codes using JavaScript following React JS workflows.
• Developing and implementing front-end architecture to support user interface concepts.
• Monitoring and improving front-end performance.
• Optimising web pages for maximum speed and scalability.
• Work alongside with product engineering, designer and product manager. Ensure all elements on web creation are consistent.

Job Skills:

• Excellent communication and interpersonal skills.
• Understanding of software engineering practices and key design principles.
• At least one progress web app developed by you must be live.
• Proficiency with HTML, CSS, JavaScript and jQuery.
• Understanding of server-side CSS.
• Experience with responsive and adaptive design.
• Eye for details in UX/UI.
• Experience with optimising SEO of websites and webapps.
• In-depth knowledge and passion for JavaScript, CSS, HTML and front-end languages
• Expertise in React tools including Web pack, Enzyme, Redux, and Flux.

The ideal candidate is a highly resourceful and innovative developer with extensive experience in the 

layout, design and coding of websites specifically in Angular. You must also possess a strong 

knowledge of web application development using Javascript / Typescript programming language. 

Responsibilities 

• Perform a mix of maintenance, enhancements, and new development as required. 
• Document features, technical specifications & infrastructure. 
• Take ownership of the project you will be working on 

Qualifications 

• 4+ years of experience in web development and software design. 
• Minimum 3 years of experience of developing web applications using Angular 
• Expertise in front-end technologies HTML, JavaScript, CSS, Bootstrap 
• Experience working with Google Tag Manager, Google Analytics, Facebook SDK is a 

plus. 

• Experience working on building PWAs is a plus. 
• Should be comfortable working in an Agile Environment. 
• Should have a good eye for detail. 
• Should be comfortable working on Ubuntu Systems / Windows Systems. 
• BS/MS degree in Computer Science, Engineering or a related subject