Senior Software Engineer - Frontend

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.

What we want to accomplish and why we need you?

Haptik is one of the world's largest Conversational AI companies, having reached over 500 + million devices, and processed over 5 billion+ conversations till date. Haptik has been at the forefront of the paradigm shift of interaction from clicks to conversations. We have built a robust set of technology and tools that can enable any kind of conversational application. With a 400+ member strong team that is set to double in the coming year, Haptik is truly poised to lead the Conversational AI revolution with some of the best minds in the industry.

We are a full-stack conversational AI company from building products to delivering bots for our clients. We are looking for a front-end engineer who can help us build the next generation of enterprise-grade conversational AI platform.

What will you do every day?

As a front-end tech lead you will be responsible for building the Haptik platform which is used by people across the globe. You will be working closely with the product, design and platform team on a day to day basis and be responsible for the look and feel of the product. While you know how to work hard, you also know how to have fun at work and make friends with your colleagues.

Ok, you're sold, but what are we looking for in the perfect candidate?

- Have a keen eye for detail and passionate about UI and UX

- Has worked with a team of FE engineers to set tech processes and standards.

- Has experience in mentoring junior engineers.

- Have a solid understanding of front-end technologies especially React

- Build, maintain and gate-keep the platform tools

- Work closely with the PM and designers to deliver high-quality features

- Work closely with the backend engineers to understand the Interkat Platform and build for scale

- High-level estimating and scoping/breaking down of tasks

- Document features to make them easily understandable to clients

- Participate in code reviews, automated and functional testing, and other aspects of our quality assurance process

- Use and promote standard good coding practices

- Fully participate in a scrum-based, agile development team

- Maintain up-to-date knowledge of technology standards, industry trends, emerging technologies, and software development best practices

- Work experience around optimizing build artifacts and performance monitoring

- Following security standards when using cookies/others to store user information etc.

Requirements :

- 5+ years of experience working on React.js

- Prior experience of leading/mentoring a team is a plus

- Knowledge of flux and redux

- Must have extensive experience working on Javascript, HTML, CSS, animations and UI/UX principles.

- Knowledge of backend technologies is a plus

- Good attention to detail, pixel perfect designs

- Bachelor's Degree in computer science or equivalent

- Good Communication skills

- Hustler with the passion for writing good code

- Team player

- Must have experience in working in an agile environment, exposure to tools like Jira would be an added benefit.

Requirements is such a strong word. We don't necessarily expect to find a candidate that has done everything listed, but you should be able to make a credible case that you've done most of it and are ready for the challenge of adding some new things to your resume.

Job Description:

We are seeking a skilled Shopify App Developer with experience in React/Remix and a strong foundation in HTML, CSS, JavaScript, and jQuery. The ideal candidate will be responsible for building and maintaining custom Shopify applications, enhancing user interfaces, and ensuring seamless e-commerce experiences for our clients. This role requires a strong understanding of Shopify’s ecosystem, combined with frontend development skills to deliver high-quality, scalable solutions.

Key Responsibilities:

• React Develop, test, and maintain custom Shopify apps to enhance store functionality.
• Collaborate with the design and product teams to implement responsive and user-friendly UI/UX features.
• Utilize React and Remix frameworks to build dynamic, interactive web applications.
• Write clean, modular, and scalable code using HTML, CSS, JavaScript, and jQuery.
• Integrate third-party APIs and manage data securely within Shopify.
• Optimize applications for speed and scalability across various devices and browsers.
• Stay updated on Shopify platform updates, best practices, and industry trends.
• Develop, test, and maintain custom Shopify apps to enhance store functionality.
• Collaborate with the design and product teams to implement responsive and user-friendly UI/UX features.
• Utilize React and Remix frameworks to build dynamic, interactive web applications.
• Write clean, modular, and scalable code using HTML, CSS, JavaScript, and jQuery.
• Integrate third-party APIs and manage data securely within Shopify.
• Optimize applications for speed and scalability across various devices and browsers.
• Stay updated on Shopify platform updates, best practices, and industry trends.

Position: React/Redux Frontend Engineer

Location: Pune (Initially Remote)

We are looking for a candidate with experience in building single page applications using React / Redux. You would be working on a product actively used by thousands of customers.

About the Organization:

It is one of the most exciting Bay Area Product Driven Organization in Logistics industry supporting more than 30,0000 customers.

Your responsibility will include, but not limited to:

• Transforming product requirements into clean well-written code

• Optimizing existing code for performance and reusability

Must have:

• 5+ Years of Strong knowledge of Javascript, ES6, JSX
• 2+ Years of Strong knowledge of React and Redux
• Knowledge of promises / Async / Await
• Good understanding of REST API integration and authentication
• Looking for Someone Who can start immediately / Within a month
• Typical Product Background with a Programming Thinking of solving complex problem

Educational Qualification:

Should Be a Computer Science Graduate, preferably from a Tier-1 Engineering college

Good to have:

• Advance GIT

• HTML / CSS knowledge

• Knowledge or experience working with Service Workers


Why join us?

• Very high-growth

• Passionate, collaborative, and awesome co-workers

• Free lunches

• Competitive salaries

 

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 Technical Lead – Frontend Engineer to join our growing engineering team to help build and maintain HappyFox’s product offerings. 

What you can expect as a Technical Lead at HappyFox:

• You will consistently ship features and improvements and lead a team of engineers working on our product roadmap.
• You will oversee software architecture, Git workflows, and CI/CD processes and perform code reviews to ensure exceptional code quality.
• You will actively work towards identifying, minimizing, and managing technical debt in the codebase.
• You will improve the development experience and the quality of the codebase. 
• You will define our internal standards for coding style, maintainability, and best practices for a large-scale web application. 
• You will uphold the best practices and coding standards for the team through code review and technical feedback.
• You will take responsibility for key technical architecture and design decisions.
• You will take ownership of the stability and performance of the services that you work on.
• You will contribute to the strategic vision and long-term roadmap in your area of expertise.

You should apply if:

• You have 2+ years of experience in a technical lead role designing and building single-page web applications.
• You have 8+ years of relevant professional experience in building web applications with javascript frameworks like Ember.js or React.js.
• You have deep knowledge of HTML, CSS, and JavaScript
• You have experience building single-page apps and a good understanding of the best practices and coding patterns.
• You have a passion to dig into technically complex problems to troubleshoot and figure out a solution.
• You have a desire to continuously improve and ship the best quality product.
• You have a pragmatic approach to making sure technical decisions align with actual business needs.
• You have a good understanding of the trade-offs when building for product value, reliability, or performance.
• You have excellent communication skills with the ability to discuss and explain your point of view clearly and effectively.

• Hands-on with contemporary javaScript frameworks(React.js / Angular.js)
• Hands-on with UI layouts, SASS, LESS, Bootstrap
• Developed reusable components and libraries for frontend.
• Frontend optimization techniques to reduce latencies
• Frontend optimization for SEO
• Excellent written and verbal communication skills, design thinking
• Practical experience with engineering best practices

Responsibilities

• Build desktop and mobile web applications using contemporary javascript frameworks
• Actively participate in design and code reviews to build robust applications and prototypes
• Explore and design simple and intuitive consumer experiences
• Work closely with Product Managers, UX designers, and back-end engineers to implement frontend solutions
• Build reusable code and libraries for future use, focus on long term code maintainability
• Work in a fast-paced and agile development environment

Jivox is transforming the way the world experiences digital marketing. We connect brands with their audiences in the most personalized way: using big data, AI/machine learning, Dynamic Creative Optimization (DCO), customer journey optimization, and identity technologies to deliver omni-channel precision marketing.

https://www.jivox.com/creative-advertising-technologies-forrester/">Recognized as a leader in creative advertising technologies by Forrester Research, Jivox delivers 1:1 messaging throughout the customer journey, seamlessly linking paid and owned media. Our portfolio of global clients includes the likes of Marriott, Mazda, Unilever, Nestle, IBM, Vodafone, and Heineken. 

POWERFUL DYNAMIC CREATIVE PERSONALIZATION PLATFORM

Jivox has offices in San Mateo, Bangalore, New York, London, and Singapore.

• Own and drive business features into tech requirements

• Work closely with Product Managers, Customers to align technology choices with business requirements

• Design and build rich interactive application to be used by leading media companies
• Optimize our algorithms and API so that the we will be able to return information fast (and we mean really fast...and for a large numbers of users) 
• Build eye catching tools that will provide useful content and consumer delight 
• Quickly create quality prototypes
• Staying updated on emerging technologies
• Evangelist for high quality products and driver of best practices towards the same
• Mentor and develop junior developers in the team

• 7+ years of Frontend Development experience
• Expert in React or similar frameworks
• Strong proficiency in JavaScript, HTML and CSS
• Expert in translating designs and wireframes into high quality code
• Proven experience in building high performance web application
• Prior experience working with test-driven development and continuous integration
• Prior experience working with microservices
• Prior experience in an Agile environment on a Scrum team
• Experience on one of AWS, Azure or GCP

• You have excellent and effective communication and collaborative skills
• You love problem solving
• You stay up to date with the latest technologies and then apply them in real life
• Interest and ability to influence all areas of software development from software best practices, CI, CD, Sustainability, documentation etc
• Eagerness to mentor the team and be a go-to technology leader
• You love paying attention to detail
• You thrive in meeting tight deadlines and prioritising workloads
• Ability to collaborate across multiple functions

Bachelor’s degree in Engineering or equivalent experience within the field. 

Mentor To Go is an android and web based platform to help students improve their work readiness through self-learning sessions, personalised mentorship provided by mentor professionals from a range of careers, and work experience opportunities.

The technology platform implements  functionalities such as: screening surveys of mentors and mentees, training content for mentors, matching through an algorithm, and mentorship through the delivery of structured activities. 

The application technology architecture comprises of the following:

o   a Python Django web application with NGinx and Gunicorn

o   PostgreSQL database

o   A React Android and Web app

o   Rest APIs which interact between the Android app and the Django webserver

Our vision at Mentor To Go is to provide career mentorship to young people anywhere, anytime across the length and breadth of India.

We are looking for a frontend software developer who is passionate about using web technologies to solve social problems and creating experiences that are elegant and effective.    You will own the front end development of features  of the Mentor To Go web and mobile platforms, from conceptualisation through design and testing. You will work closely with other developers,the technical project manager, and the program operations team. You are user-centric, continuously demonstrate strategic & analytical abilities, and are laser focused on executing at speed. You must have the ability to succeed in a fast paced environment, where success is dependent on your ability to collaborate with cross-functional team members  in a positive, productive, and transparent way.

Minimum requirements

• Bachelor’s degree in engineering preferably  CS  or related discipline
• 3+ years experience with the development of applications for Android, iOS and  web preferably using React Native/ReactJS

• Experience working in Unix/Linux environments
• Experience with a complete mobile software development life cycle
• Strong written and oral communication skills
• Familiarity with version control software such as Git

Desired  requirements

• Strong written and oral communication skills
• Ability to participate in technical discussions and help make technical trade-offs

About Mentor Together

https://mentortogether.org/">Mentor Together is India’s first and largest youth mentoring  non-profit organization with a mission to facilitate empowering mentoring relationships and networks that help young people break the inequalities of opportunity and actualise their potential.

http://bit.ly/mentortogo">Mentor To Go is the world’s first mobile mentoring platform created by Mentor Together with the support of Cisco India, LinkedIn Social Impact, British Telecom and Sterlite Technologies.

Primary Skill: Java Script

Secondary: HTML5,JS Library- React.js,React JS,User Experience Design

HTML, CSS, CSS3, JavaScript, Object Oriented JS, Angular JS, Ecma Script (ES6),React JS/Angular/TypeScript

Basic understanding of HTTP protocol, Web Application Design/Architecture

OOPS concept, JSON, AJAX

Knowledge of REST API

Basic understanding of Git

Basic understanding of client-server communication

Ready to take up challenges at work

Learning ability

Team spirit

Basic understanding of single page web application

Analytical Skills

Communication

Adaptability

Logical and Problem Solving