
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 iRage
About
At iRage, we harness the power of technology and quantitative finance to craft cutting-edge high-frequency trading systems and strategies. Our journey began in 2009, shortly after the introduction of Direct Market Access (DMA) in the Indian markets, which ushered in a new era of possibilities in algorithmic trading.
iRage was founded by a group of passionate quantitative trading professionals who saw the immense potential within this domain. Since our inception, we've been on a relentless pursuit of excellence, aiming to reshape the landscape of algorithmic trading in India.
When you join our team at iRage, you're not just an employee; you're an integral part of our mission to solve some of the most challenging engineering problems in the financial industry. You'll collaborate with exceptional programmers, quantitative analysts, and traders who share your enthusiasm for innovation.
Connect with the team
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- Developing new user-facing features using React.js and Next Js
- Building reusable components and front-end libraries for future use
- Translating designs and wireframes into high-quality code
- Optimizing components for maximum performance across a vast array of web-capable devices and browsers
Skills :
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
- Thorough understanding of React.js and its core principles
- Experience with popular React.js workflows (such as Flux or Redux)
- Familiarity with newer specifications of EcmaScript
- Working Experience in SASS CSS3
- Working Experience in HTML5
- Working Experience in Responsive UI Conversions
- Working Experience in Pixels to Pixels conversion
- Familiarity with RESTful APIs
- Familiarity with modern front-end build pipelines and tools
- Ability to understand business requirements and translate them into technical requirements
- A knack for benchmarking and optimization
About Company
ADDV HealthTech Solutions, a UK-based company, operates with a strong IT presence in Ahmedabad, empowering IT professionals and organizations with cutting-edge technologies. As a product and service-based industry, we have excelled in managing UK healthcare projects, leveraging our novel tech-led approach.
ADDV HealthTech Solutions operates as a subsidiary of the renowned UK company, ADDVantage Technologies (https://addvantage-technologies.co.uk/) delivering innovative healthcare solutions like AllDayDr, Healthya, AppLocum, PharmSmart, ADDVantage Minds, and HEALTHYA Stations. Under the visionary leadership of our Founder and CEO, Suhel Ahmed, we continue to expand our expertise and presence across the UK and the Middle East.
What are we looking for in a candidate?
● 3-5 years of experience in frontend development.
● Proficient understanding of web markup, including HTML5 and CSS3.
● Basic understanding of server-side CSS pre-processing platforms, such as LESS and SASS
● Proficient understanding of client-side scripting and JavaScript frameworks, including jQuery
● Strong knowledge of JavaScript and its frameworks, such as AngularJS or React.
● Good understanding of asynchronous request handling, partial page updates, and AJAX
● Experience with responsive design and frameworks like Bootstrap.
● Proficient understanding of cross-browser compatibility issues and ways to work around them.
● Basic understanding of React.js and its core principles (optional but preferred).
● Familiarity with version control systems (e.g., Git).
● Excellent problem-solving and communication skills.
What will a candidate be doing with us?
● Develop and maintain user-facing features for web applications.
● Build reusable code and libraries for future use.
● Ensure the technical feasibility of UI/UX designs.
● Optimize applications for maximum speed and scalability.
● Collaborate with other team members and stakeholders.
What will we provide to the candidate?
● 5 days working
● Flexible working hours
● Training and Development Opportunities
● Collaborative work environment
● Working with International teams
Software Engineer (Web/UI Engineer)
Please apply only if you satisfy work experience requirements Our Vision , we are building a first-of-its-kind, lifestyle health product for Women in India. We believe that the future of health and fitness is digital, and women will drive the digital fitness revolution in India. Existing digital health and fitness products are highly transactional and we see a huge opportunity to build a truly aspirational product that will inspire and empower millions of women to lead healthier lives. If you are passionate about building a product that blends together, technology, content, and community, we would love to talk to you. looking for results-oriented Engineers. An ideal candidate for us would be a passionate builder of great products/frameworks and someone who would thrive in a fast-paced environment and enjoy the challenge of complex business contexts that are typically being defined in real-time. In this role, you will be responsible for building world-class technology products and platforms that are at the forefront of the technology revolution in the Indian healthcare ecosystem. You are someone who insists on the highest standards for quality, maintainability, and performance. You will be working in a fast-paced and agile work environment delivering quality solutions that have an immediate business impact. Responsibilities ● Own the end-to-end development and launch of features on the web ● Participate in scoping, planning discussions with the designers, PMs, and Leads ● Conceptualize and develop prototypes quickly ● Develop and own launch plans ● Identify opportunities and implement solutions to improve the performance and the architecture of our web stack ● We will depend on this person to set-up/improve the fundamental architecture of our web apps and so it is highly desirable to have someone who has worked extensively on React codebases. Required Skills ● Solid understanding of HTML and CSS ● Strong proficiency in JavaScript ● Responsive Web pages ● React preferably with Typescript ● Has worked with the react ecosystem for eg, redux, react-query, react-router etc. ● At least 2 years of experience working in a consumer tech set-up (ecommerce, D2C) ● Work with Rest APIs Good-to-have Skills ● Next.js ● Knowledge of deployment and hosting react apps
- Work with design and marketing team to improve website conversion rate for different sign up processes
- Work with the marketing team to improve main website KPIs - New users, average time on page, session duration are the main ones
- Write automation scripts to help automate redundant manual processes of other marketing functions– SEO, Outbound, Content, Product Marketing
- Work on our Shopify demo store to showcase new product releases and features. This is pretty interesting as you’ll get to play around with Shopify backend (the most popular eCommerce platform in the world)
- Work on building integrations and workflows between different marketing automation platforms. Our current marketing tech stack involves Salesforce, HubSpot, Reply, Similarweb and more.
- Web scraping for new growth initiatives
Key Responsibilities:
- Build interfaces as per the design provided by the UX / UI team
- Ensure the work output is as per the design inputs provided
- Work closely with the backend team to integrate the pull or push APIs
- Work with the support team to troubleshoot issues faced by customers
- Build programming abstractions for the specific domain
- Keen interest to always present code and work of high-quality standards.
Key Competencies (Functional):
- Proficiency in Javascript / ES5 / ES6 or Typescript
- Proficient in code versioning tools including Mercurial / Git / SVN.
- Familiarity with APIs and WebSockets
- Work with Canvas related frameworks – Cocos2d / PixiJs
- Experience with Cocos Creator is a Bonus.
Murf AI is a fast-growing Series A-funded startup backed by Elevation Capital and Matrix Partners India. Founded in 2020 by alumni of IIT Kharagpur, we have served 2 Mn+ voice-over projects through our core product, the Murf Studio, which now caters to customers in 100+ countries.
We are working on simplifying voice audio and making high-quality voiceovers accessible to everyone, using artificial intelligence. Murf helps users create lifelike voiceovers in a matter of minutes, without the need for any recording equipment. (https://murf.ai/).
Some interesting facts about Murf AI:
Customers in 100+ countries
1Mn+ registered users
7X growth in revenue in the last 12 months
120+ voices in 20+ languages offered by Murf Studio
Job Description
We are looking for a React.js developer who has a good knowledge of modern (ES6+) Javascript to build the next generation of Murf AI Studio’s frontend. You would be responsible for building a feature packed cloud based tool for generating and editing synthetic media. You will build user-facing components and implement them with different workflows and toolchests like Redux and Flux. Your primary focus will be to develop a stable, robust, aesthetic and maintainable product. You also need a good understanding of the toolchain of modern web development including packers and transpilers and apply these pragmatically to achieve high quality deliverables.
Responsibilities
- Create new features or parts of applications, with a natural ability to deliver on short timelines.
- Develop components and libraries that are reusable and future-proof
- Confident in using UI/UX designs or wireframes to create the respective code and the application
- Use your knowledge on React.js and its lifecycle to maximise components performance across different devices and browsers
- Work with design and content teams, to improve customer facing landing and resource pages.
Required Skills & Qualifications
- 1-3 years of experience in building complex react based applications
- Bachelor's degree in CS or similar fields
- Deep understanding of React.js and its fundamentals, ideally including modern features like hooks
- Excellent understanding of Javascript including the OOP concept and how shadow DOM and DOM work
- Experience with widely used React.js state managers like Flux, Redux, Thunks or Sagas
- Knowing modern ECMAScript
- Experience with data structure libraries like Immutable.js
- Knowledge of RESTful APIs
- Familiarity with modern front-end build pipelines and tools like Webpack, Babel, NPM etc.
- Knowledge of the overall browser rendering behaviour and measuring and optimising performance
- Strong hands-on experience with source code management systems like Git
- Understanding of what the business / stakeholders need and transfer that into your project
Extra Awesome
- Animation skills using CSS/SVG/JS
- Experience with AWS technologies such as Cloudfront, Lambda, S3.
- Understanding of authorisation mechanisms like OAuth, JSON Web Token
- Understanding of on-site Technical SEO and accessibility concepts
- At TailNode, we are at the bleeding edge of this change.
- We conceptualize and develop products that are aimed to enable this transformation of the political architecture of the country.
- We leverage the best practices and insights of the technology world and apply them in our unique way to deliver impact on a massive scale.
- We want to offer you a once in a lifetime opportunity to be a part of this massive change and build new and exciting products with us
- We are seeking motivated and self-driven Frontend React JS Developer.
- You will be building product features by solving complex problems using cutting-edge technologies in an ownership and integrity driven culture.
The Role :
- As a Frontend Developer, your role will be to work closely with the design team and execute their ideas to reality.
- Ensuring that design is adhered to in building leading edge Frontend solutions.
- Translate designs and wireframes into high quality code.
- Design, build, and maintain high performance, reusable, and reliable code.
- Ensure the best possible performance, quality, and responsiveness of the application.
- Identify and fix bugs.
- Help maintain code quality and organization.
Skills and Experience Required :
- At least 2-5 years of frontend development experience.
- Should have hands-on development experience in React JS.
- Exceptionally able with key development tools - JS/HTML5/CSS, React JS, experience working with REST APIs.
- Proficient understanding of CSS frameworks & architecture (Material-UI, Bootstrap, BEM etc).
- Proficient understanding of SASS/Preprocessors, Webpack, npm and Git.
- Should be familiar with Test Driven Development and are familiar with relevant testing frameworks (Jest, cypress, react-testing-library).
- Well versed with core JavaScript & React JS concepts.
- Should have experience in working with Context API, Hooks & Redux.
- Proficient understanding of cross-browser compatibility and responsive design.
- Good understanding of SEO & accessibility principles and ensuring that our applications will adhere to them.
1. Experience working with a Java Script framework.
2. In-depth understanding of Java Script, the DOM, and relevant concepts
3. Proficiency with browser-based debugging and performance testing
4. Thorough understanding of React.js etc., (Redux) and its core principles
5. Familiarity with newer specifications of ECMA Script
6. Familiarity with RESTful APIs
7. Ability to understand business requirements and translate them into technical requirements
8. Familiarity with code versioning tools such as Git, SVN, and Mercurial
Note: Right candidate will have no bar












