UI Developer

🚀 Hiring: React.js

⭐ Experience: 2+ Years

📍 Location: Mumbai

⭐ Work Mode:- 5 Days Work From Office

⏱️ Notice Period: Immediate Joiners or 15 Days

(Only immediate joiners & candidates serving notice period)

We’re looking for a skilled React.js Developer to join our growing team! If you love building dynamic, user-friendly web applications and have strong expertise in React.js, JavaScript (ES6+), and modern front-end tools, this role is for you.

✅ Key Skills:

• Proficiency in React.js, JavaScript (ES6+), HTML5, CSS3
• Experience with Redux / Context API
• Strong knowledge of REST APIs & JSON
• Familiarity with Git & Agile development
• Bonus: TypeScript, Next.js, Testing (Jest/Enzyme), UI frameworks (Material-UI/Tailwind)

About Us

Incubyte is an AI-first software development agency, built on the foundations of software craft, where the “how” of building software matters as much as the “what”. We partner with companies of all sizes, from helping enterprises build, scale, and modernize; to pre-product founders bring their ideas to life. 

Incubees are power users of AI across the SDLC for speed and efficiency. Guided by Software Craftsmanship values and eXtreme Programming practices, we bring velocity together with the discipline of quality engineering to deliver high-impact, reliable solutions – fast. 

Guiding Principles 

• Living and breathing our guiding principles on a daily basis is key to success at Incubyte: 
• Relentless Pursuit of Quality with Pragmatism 
• Striving for exceptional quality without losing sight of practical delivery needs. 
• Extreme Ownership Taking full responsibility for decisions, work, and outcomes. 
• Proactive Collaboration Actively seeking opportunities to collaborate and leverage the team’s collective strengths. 
• Active Pursuit of Mastery Continuously learning, improving, and mastering the craft, never settling for ‘good enough’. 
• Invite, Give, and Act on Feedback 
• Creating a culture of timely, respectful, actionable feedback for mutual growth. 
• Ensuring Client Success Acting as trusted consultants and focusing on delivering true value and outcomes for clients. 

Role Overview

As a Senior Software Crafter at Incubyte, you are a highly competent engineer who leads complex projects and drives strong technical outcomes at a project or team level. The role focuses on elevating technical quality, guiding teams through high-impact challenges, and strengthening engineering maturity through mentorship and candid feedback. 

At this level, you play a key role in resolving critical incidents, leading large improvement initiatives, and contributing to domain or guild efforts that create positive, lasting change across Incubyte.

At Incubyte, AI is not an add-on but a co-creator in our craft. From refining requirements to reviewing and refactoring code, you’ll pair with AI to explore solutions faster, catch issues earlier, and raise the quality bar continuously. AI accelerates how we learn, experiment, and deliver — enabling you to focus on solving the right problems with impact while being tech and domain agnostic – true consultants at heart.

Responsibilities

• Lead and deliver projects of high complexity
• Drive technical quality across projects using sound engineering judgment
• Mentor, sponsor, and provide candid, trend-based feedback to engineers
• Provide strategic feedback that leads to improved project and delivery outcomes
• Resolve critical incidents and complex production issues effectively
• Refactor complex systems pragmatically to improve stability and maintainability
• Design scalable, observable, and maintainable systems
• Support post-incident learnings to strengthen systems and practices
• Inspire others in craft and technical mastery through impactful contributions
• Lead large improvement initiatives that balance quality with pragmatism
• Handle difficult conversations respectfully and constructively
• Lead calmly during crises and create safety for experimentation
• Provide creative, business-aligned technical solutions
• Engage in domain or guild initiatives to drive positive change
• Contribute ideas that elevate Incubyte’s brand, culture, and engineering practices
• Use AI to accelerate design, testing, and delivery.

Requirements

What We’re Looking For

• ⁠6+ years of hands-on software development experience, particularly in ReactJS, TypeScript, HTML, and CSS.
• A curious and constant learning mindset that looks at tech to an end to solve problems.

Life at Incubyte

We are a remote-first company with structured flexibility. Teams commit to shared rhythms during core hours, ensuring smooth collaboration while maintaining autonomy. Twice a year, we come together in person for a co-working sprint and once a year for a retreat — with all travel expenses covered. 

Our environment is built for crafters: pairing, refactoring, experimenting with AI, and pushing the boundaries of software excellence. We are all lifelong learners, and our work is our passion.

Benefits

• Dedicated learning & development budget.
• Sponsorship for conference talks.
• Comprehensive medical & term insurance.
• Employee-friendly leave policies.
• Home Office Fund
• Medical Insurance

Incubyte is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. 

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.

• Experience: 5+ years of professional experience in front-end development with a strong focus on React.js.
• Technical Skills: Proficiency in JavaScript (ES6+), HTML5, CSS3, and modern JavaScript frameworks/libraries.
• React Expertise: Deep understanding of React.js and its core principles, including hooks, context API, and state management.
• Tools: Experience with version control systems (e.g., Git), build tools (e.g., Webpack), and testing frameworks (e.g., Jest, React Testing Library).

Preferred Qualifications:

• Experience with: Knowledge of TypeScript, Redux, and modern front-end build pipelines and tools.
• Design: Familiarity with UI/UX design principles and responsive design.
• Blockchain: Understanding of blockchain technologies and cryptocurrency concepts is a plus.

IRIS Business Services Ltd is looking for a Senior Front-end Angular Developer who is passionate about design and programming to work in an exciting space of tax technology. Responsibilities include implementing visual elements and their behaviours with user interactions. You will work with both front-end and back-end web developers to build all client-side logic. You will also be bridging the gap between the visual elements and the server-side infrastructure, taking an active role on both sides, and defining how the application looks and functions.

Requirements:

• 2+ years working in front-end web development
• Front end technologies: Angular.js (1.x), Angular (4-12), HTML5, CSS3, jQuery, Ajax, Bootstrap
• Excellent Javascript knowledge and programming experience with ES5/ES6
• Solid understanding and development experience in Angular
• Experience consuming REST APIs
• Experience with client-side architecture and design patterns
• Awareness of cross-browser compatibility issues and client-side performance considerations
• Solid understanding and extensive experience with version control tools like Git, SVN or Mercurial
• Exceptional problem solving and ability to work independently
• Exceptional learning skills
• Fluency in both oral and written English

Responsibilities:

• Implementing the front-end logic that defines the behavior of the visual elements of a web application.
• Actively involved throughout the project lifecycle, often times starting with rapid prototypes early in the design phase
• Writing clean, production-ready code, which will be integrated with the backend/APIs
• Will be supported by back-end web developers, who are responsible for server-side application logic
• Will be supported by front end designer who specialize in markup and styling

Your role and responsibilities

• Integrating REST APIs in front-end application using React JS
• Implementing business logic in front-end application using javascript, should be able to handle complex JSON architecture.
• Should be able to manage states using Redux, Redux thunk/saga, Mobx.
• Should be comfortable in using both functional and class components in React.
• Should be able to create reusable components to make efficient applications. We hate code duplication.
• Must be familiar with popular React UI libraries like Material UI, Antd.
• Implement best practices and constantly learn new ways of keeping codebases up to date.
• Having knowledge in Typescript, GraphQL, NextJS, Socket.io is like a match made in heaven.

Criteria

• 2+ years of work experience with Javascript and React JS.
• Proficient understanding of code versioning tools, such as Git.
• Open-minded individual, open to learning new things
• A bit lazy is okay. Lazy people always find the quickest way to reach the solution. They write the most efficient code. We love that.
• You care about the design and user experience of an application. The choice of third-party libraries should be elegant.

What you will do:

• Build cross-browser compatible front-end applications using ReactJS, JavaScript, HTML and CSS.
• Develop fast and highly scalable and responsive applications.
• Work closely with cross-functional teams of product manager, backend developers, and UI/UX designers.
• Partner with product teams to ensure user interactions & features are well-designed and implemented.
• Manage individual project priorities, deadlines and deliverables.

Skills And Qualifications:

• 4+ years of work experience in frontend web development.
• Strong understanding of Core Javascript, ReactJS, React Native (desired), semantic HTML5 CSS, Flexbox and responsive development.
• Thorough understanding of Javascript design patterns
• Proficient understanding of web markup, including HTML5 CSS3
• Understanding of server-side CSS pre-processing platforms, such as LESS and SASS
• Proficient understanding of advanced JavaScript libraries and frameworks, such as ReactJS, AngularJS
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• Preferably from a SaaS and web applications platforms background, and/or B2B applications.
• Proficient understanding of cross-browser compatibility issues and ways to work around them
• Proficient understanding of code versioning tools, such as Git
• Experience in building APIs / application backends using Node.js (good to have)

Understanding of UI / UX best practices and ability to collaborate with the Design team to implement functional and intuitive user experiences