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- Write, test, debug and ship code and gather feedback on the scale, performance, security to incorporate back into the platform.
- Work with the founders to identify complex technical problems and solve them.
- Work with the product design and client experience development team to support
them with scalable services
- Feed into the overall mission and vision of the eParchi’s platform over the period of the coming months and years.
- An ability to perform well in a fast-paced environment
- Excellent analytical and multitasking skills.
Profile: React.js
Location: Mumbai
Experience Required: 2+ Years
Employment Type: Full-time
Required Skills & Qualifications
- Experience: Minimum 2+ years of professional experience in React.js development
- Core Technologies:Strong proficiency in JavaScript (ES6+)
- Extensive experience with React.js and its ecosystem
- Solid understanding of HTML5, CSS3, and responsive design
- Experience with state management libraries (Redux, Context API)
- Knowledge of modern build tools (Webpack, Vite, etc.)
- Familiarity with version control systems (Git)
- Technical Skills:Understanding of RESTful API integration
- Experience with testing frameworks (Jest, React Testing Library)
- Knowledge of modern CSS frameworks (Bootstrap, Material-UI, Tailwind CSS)
- Familiarity with TypeScript is a plus
- Understanding of performance optimization techniques
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.
- You're proficient in React.JS and strong frontend javascript foundation
- Knowing Web3.js integration is a definite plus but not a requirement
- You have a passion for writing code as well as understanding and crafting the ways systems interact
- You have experience deploying to and implementing solutions in AWS
- You believe in the benefits of agile processes and shipping code often
- You are pragmatic and work to coalesce requirements into reasonable solutions that provide value
Responsibilities
- Deploy well-tested, maintainable and scalable software solutions
- Take end-to-end ownership of the technology stack and product
- Collaborate with other engineers to architect scalable technical solutions
- Embrace and improve our standards and processes to reduce friction and unlock efficiency
Current Ecosystem :
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Metaverse : https://shib.io/#/" target="_blank">https://shib.io/#/
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Game: Shiba Eternity on iOS and Android
About the Company:- Rejolut is one of the award-winning fastest-growing emerging tech companies which is working on leading technology like Blockchain, ML & AI, Complex mobile & web apps, IoT etc.
The ideal candidate will be responsible for developing highly scalable and secure code.
React Js Job Description
- Proficient in client & server-side JavaScript, HTML5, CSS3 and webpack
- Competent in building single page web applications using Node.js and React Js
- Redux for state management
- Universal rendering (Client-side rendering and Server-side rendering)
- Experience with cross-browser, cross-platform, and design constraints on the web
- Experience in developing automated unit and functional tests
- Experience in an agile development process
- Solid knowledge of algorithms and design patterns
- Have a passion for quality and writing clean, readable code that scales and performs well
- Good interpersonal communication skills
- 1+ years of software design and web application development
Benefits :
> Health Insurance
> Work from Home
> Fast growth and more visibility into the company
> Experience to work on the latest technology
> Competitive Learning Environment with supportive co-workers
> Employee friendly HR Policies
> Paid leaves up to certain limits
> Competitive salaries & Bonuses
> Liberal working atmosphere
> Get mentored by the best in the industry
Schedule:
Day Shift/Flexible working hours
Monday to Friday
Skills:- React.js, Javascript and Redux/Flux
- Collaborate with team members to develop high quality software.
- Develop intuitive software that meets and exceeds the needs of the company.
- Professionally maintain all software and create updates regularly to address customer and company concerns.
- Analyze and test programs and products before formal launch. Troubleshoot coding problems quickly and efficiently.
- Designing, developing, and testing UI for mobile and web applications. Build reusable code and libraries for future use.
- Accurately translate user and business needs into functional frontend code
We are looking for a JavaScript developer who is proficient with React.js . Your primary focus will be on developing user interface components and implementing them following well-known React.js workflows (such as Flux or Redux). You will ensure that these components and the overall application are robust and easy to maintain. You will coordinate with the rest of the team working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product is important.
Requirements:
- 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.
- Experience with data structure libraries (e. g., Immutable.js ).
- Knowledge of isomorphic React is a plus.
- Familiarity with RESTful APIs.
- Knowledge of modern authorization mechanisms, such as JSON Web Token.
- Familiarity with modern front-end build pipelines and tools.
- Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
- Ability to understand business requirements and translate them into technical requirements.
- A knack for benchmarking and optimization.
- Familiarity with code versioning tools (such as Git, SVN, and Mercurial).
Job Description
SDE-II (FE)
Responsibilities
- Gather functional requirements from product management/UX teams and translate requirements into technical specifications to build robust, scalable, supportable solutions
- Serve as technical lead throughout the full development lifecycle, end-to-end, from scoping, planning, conception, design, implementation and testing, to documentation, delivery and maintenance.
- Provide design reviews for other engineers, including feedback on architecture and design issues, as well as integration and performance.
- Manage resources on multiple technical projects and ensure schedules, milestones, and priorities are compatible with technology and business goals.
- 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 back-end
- Collaborate with other team members and stakeholders
Requirements
- Proficient understanding of web markup, including HTML5, 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
- Good understanding of AngularJS, ReactJS
- Good understanding of asynchronous request handling, partial page updates, and AJAX
- Basic knowledge of image authoring tools, to be able to crop, resize, or perform small adjustments on an image. Familiarity with tools such as as Gimp or Photoshop is a plus.
- Proficient understanding of cross-browser compatibility issues and ways to work around them.
- Proficient understanding of git
- Good understanding of SEO principles and ensuring that the application will adhere to them.
- BTech/BE Equivalent.
- 3-5 years of experience







