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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 build the best of commerce tools for brands across India. We power commerce for some of the top brands like Levis, boAt, Birkenstock, Kohler and lot more. We are looking for a rockstar Reactjs developer to join us and build the best of tools to empower the largest brands of India.
- 3-5 years of experience in front-end development with React.js.
- Strong proficiency in JavaScript (ES6+), TypeScript (preferred).
- Hands-on experience with Redux, Context API, or Zustand.
- Good understanding of RESTful APIs, GraphQL, and WebSockets.
- Experience with front-end build tools (Webpack, Babel, Vite, etc.).
- Knowledge of CSS frameworks like TailwindCSS, Bootstrap, Material UI.
- Familiarity with unit testing (Jest, Cypress, React Testing Library).
- Experience with Git, GitHub, and CI/CD pipelines.
- Ability to work in an Agile development environment.
- Strong problem-solving skills and attention to detail.
- Candidate should have strong knowledge of Javascript and HTML5 Canvas
- Should have knowledge of HTML5 Canvas Drawing Pad
- Experience in HTML5 Canvas is a must
- Thorough semantics-level understanding of HTML5 Canvas
- Good understanding of JavaScript programming and DOM manipulation
- Understanding and deployment of Responsive Web Design
- Understanding of how web design/dev is related to web Performance
Other Selection Criterias
- Candidate should be available to join immediately
Frontend Developer (ReactJS)
Company Profile
Egregore Labs (www.egregorelabs.com) is a financial software company founded in 2017 by Prashant Vijay (ISB, Tulane) & Hari Balaji (IIM Ahmedabad, IIT Madras) both of whom have spent over a decade each in Financial Services, with a majority of their experience at Goldman Sachs across New York, Hong Kong & Singapore in roles across Trading, Quant & Technology.
Opportunity
We are looking for an experienced Frontend engineer with ReactJS development experience to join our team.
Here’s are some of the things you might have to do on any given day:
- Implement responsive and performant UIs with user centered approach with frontend technologies including ReactJS, Javascript(ES 6), Typescript, SCSS, etc
- Write meaningful test cases for frontend &
- Integrate our products with 3rd party products/tools/services
- Develop Infrastructure for delivering services using a performance driven approach, build databases, schedule automated jobs, etc
Ideal Background / Experience
- At least 5 yrs of diverse experience in web development for product or services oriented environment with exposure to working production deployments
- Expertise in programming using Python/ReactJS or similar scripting languages
- In-depth exposure to technologies used in web-based SaaS products, including REST APIs
- Sound understanding of Postgres and NoSQL databases such as MongoDB
Nice to have exposure to any of
- AWS
- Azure
- ELK
- Object Relational Models (SQLAlchemy, etc)
- Google APIs
- Microservices Architecture Pattern
- NodeJS / ExpressJS
Work From Home
Work Timings: 1:30 PM to 10:30 PM IST
Location: Noida/Delhi NCR/Mumbai
Qualifications: B Tech / MCA or Higher
Experience: 2-7 Years
IMMEDIATE JOINERS & SERVNG NOTICE PERIOD CANDIDATES ARE PREFFERED.
NextGen Invent (“NGI”) is a leading global professional services company that specializes in providing strategy, technology, operations, and data management services. NGI has always been at the forefront in providing solutions using disruptive technologies such as Big Data Analytics, Blockchain, IOT, Artificial Intelligence and Augmented Reality. Our in-depth Industry knowledge, specialized technical expertise, unmatched data science experience, and global delivery network along with our “Customer first” policy has allowed us to grow via word of mouth. Our clients are fortune 500 companies to start-ups with innovative ideas. Regardless of technology, we can be your trusted technology partner who can solve your business problems. NGI is Microsoft gold certified partner, AWS consulting partner and IBM Registered Partner.
For more updated information,
please follow-us on https://www.linkedin.com/company/nextgen-invent-corporation." target="_blank">https://www.linkedin.com/company/nextgen-invent-corporation.
Headquartered: New York, USA
KEY RESPONSIBILITIES:
You'll be expected to own projects from start-to-finish. We are looking for passionate Web Engineers who appreciates good engineering and user experience. The person should be enthusiastic about maintaining a clean codebase and possess a passion for pushing web technologies to the limits to design and build exceptional products.
§ Work closely with design, product management, and development teams to create elegant, usable, responsive, and interactive interfaces across multiple devices.
§ Turning UI/UX designs into prototypes, creating awesome interactions from designs, writing reusable components and maintainability of the code.
§ Demonstrates excellent problem solving & debugging skills.
§ An ability to perform well in a fast-paced environment and bring in optimal flow for rapidly changing design/ technology.
§ Write unit and integration tests to improve and maintain high code coverage.
Skills, Knowledge, Experience:
• Excellent programming skills in JavaScript
• Experience with expertise in designing and implementing high-performance web applications
• Expert in SPA Frameworks React JS
• Solid understanding and demonstrated ability of creating self-contained, reusable, and testable modules and components.
• Solid understanding of HTML5, CSS3 and cross-browser compatibility issues.
• Solid understanding of CSS box model and flex layouts.
• Proficient in SASS.
• Experience with REST APIs, Node JS/.Net Web API/Golang is a plus.
• Experience with the entire Software Development Life Cycle (SDLC)
• Experience with unit testing & Test-Driven Development (TDD) with various test frameworks (like Jasmine, Karma, Protractor).
• Experience in optimizing the application for performance and scalability.
• Experience in state management using Akita and cross-browser support.
• Experience with Git.
• Experience with DevOps tools for CI/CD
• Working with USA or European clients is a plus.
• Experience working with multi-vendor, multi-culture, distributed offshore and onshore development teams in dynamic and complex environment.
• Must have excellent written and verbal communication skills.
Please find below JD
- 4 -10 years' experience in Frontend technologies
- Strong core JavaScript with ES6, ES5, ES7
- Proficient in React.JS with minimum 2 years of experience
- Proficient in HTML5, CSS3
- Proficient in Grunt, Gulp and Webpack, bower, yarn, module loader
- Hands on experience with multiple library/frameworks - jQuery, Jasmine, Mocha, etc.
- Unit testing / E2E testing is necessary.
- Expert level understanding of HTTP protocols (1.0, 1.1, and 2.0) and WebSockets and JS WebSocket
- Experience with working on SaaS/PaaS based applications.
- Good analytical and problem-solving skills.
- Upbeat, highly motivated, and self-starter & Strong communication skills.
Company profile: https://apc01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.innominds.com%2F&data=04%7C01%7C%7Cbfa37f316b0142ee45e008d91a9266fd%7C4643991463b7464e83279b13737ae8cf%7C1%7C0%7C637570038501362488%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=mX05qphV6hkETXRm1DLlYLCNbkGAuwQ37P3%2BsQFwBpE%3D&reserved=0">www.innominds.com
Do share below details to proceed further:
CTC:
ECTC:
NP:
Work Location: Bangalore / Hyderabad / Pune
Relevant experience in JavaScript, React / Angular:
We are looking for a skilled React.js Developer to join our front-end development team. In this role,
you will be responsible for developing and implementing user interface components using React.js
concepts and workflows such as Redux, Flux, and Webpack. You will also be responsible for profiling
and improving front-end performance and documenting our front-end codebase.
To ensure success as a React.js Developer, you should have in-depth knowledge of JavaScript and
React concepts, excellent front-end coding skills, and a good understanding of progressive web
applications. Ultimately, a top-class React.js Developer should be able to design and build modern user
interface components to enhance application performance.
React.js Developer Responsibilities:
• Meeting with the development team to discuss user interface ideas and applications.
• Reviewing application requirements and interface designs.
• Identifying web-based user interactions.
• Developing and implementing highly-responsive user interface components using React
concepts.
• Writing application interface codes using JavaScript following React.js workflows.
• Troubleshooting interface software and debugging application codes.
• Developing and implementing front-end architecture to support user interface concepts.
• Monitoring and improving front-end performance.
• Documenting application changes and developing updates.
React.js Developer Requirements:
• Bachelor’s degree in Computer Science, Information Technology, or a similar field.
• 2years experience working as a React.js Developer.
• In-depth knowledge of JavaScript, CSS, HTML and front-end languages.
• Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
• Experience with user interface design.
• Knowledge of performance testing frameworks including Mocha and Jest.
• Experience with browser-based debugging and performance testing software.
• Excellent troubleshooting skills.
• Good project management skills.
About Alore
Alore brings revenue velocity to businesses by being their dependable growth operating system.
For further information on what Alore can do for growing businesses, please visit http://alore.io">alore.io
Alore is based out of Singapore with an office at Bangalore.
Who should NOT apply for this job
- If you are looking for a 100% hike in your salary but can't commit to what value you will bring on the table
- If you never read books
- If you jump companies every 11-12 months
- If you are not comfortable working on Saturdays
- If you have less than 2 years of experience
- If you have more than 4 years of experience
- If you have never worked in a product-led company
CTC:
5.5-7.5 LPA based on experience and on performance in the interview round (70% Fixed - 30% Variable Incentive based on delivery schedule) (We do ZERO deductions since the salary will be paid from Singapore)
About the Role:
We are looking for a Front-End Web Developer who is motivated to combine the art of design with the art of programming. Responsibilities will include translation of the UI/UX design wireframes to actual code that will produce visual elements of the application. You will work with the UI/UX designer and bridge the gap between graphical design and technical implementation, taking an active role on both sides and defining how the application looks as well as how it works.
Responsibilities:
- Develop new user-facing features
- Build reusable code and libraries for future use
- Ensure the technical feasibility of UI/UX designs
- Optimize application for maximum speed and scalability
- Assure that all user input is validated before submitting to the back-end
- Collaborate with other team members and stakeholders
Requirements:
- Min 2 years experience
- Max 3 years of experience in Web development
- Proficient understanding of Angular 2+
- Proficient understanding of web markup, including HTML5 CSS3
- Proficient understanding of client-side scripting and JavaScript frameworks, including jQuery
- Proficient understanding of cross-browser compatibility issues and ways to work around them.
- Proficient understanding of code versioning tools, such as (GitHub, GitLab)










