React Native DEveloper

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.

JOB DESCRIPTION FOR FRONTEND DEVELOPER ROLE 

Company Overview 

Boolment Software Development Pvt. Ltd. is a fast-growing technology company delivering innovative software solutions across diverse industries. Our mission is to empower businesses through scalable and high-quality technology products. We foster a culture of innovation, collaboration, and continuous learning, providing employees with opportunities to work on cutting-edge technologies and projects. 

Job Title : Front Developer  

Department: Software Development 

Location: Gurgaon, Haryana 

Employment Type: Full-Time / Internship (3 months) 

Working Mode: On-site 

Shifts: 6 Day (9:30 AM – 6:30 PM)  

Reporting To: Manager 

Vacancies: 3–5 

Experience: 0–3 years (Freshers eligible) 

Salary Range: ₹3 LPA – ₹6.5 LPA | Internship Stipend: ₹0–₹15,000/month 

Job Summary 

We are seeking a skilled Frontend Developer to join our dynamic team. The ideal candidate will be responsible for designing, developing, and maintaining responsive and high-performance web applications. You will work closely with UX/UI designers, backend developers, and product teams to deliver exceptional user experiences. 

Key Responsibilities 

UI/UX Implementation: 

• Implement modern, responsive, and interactive user interfaces based on wireframes, mockups, and prototypes. 
• Collaborate with UX/UI designers to translate designs into functional and visually compelling interfaces. 
• Ensure web accessibility and usability best practices. 

Frontend Development: 

• Develop scalable, maintainable, and reusable components using modern JavaScript frameworks and tools such as Angular, Bootstrap, and Thymeleaf and JSP (JavaServer Pages). 
• Write clean, modular, and efficient code in HTML5, CSS3, JavaScript (ES6+), and jQuery. 
• Use CSS Preprocessors such as SASS, LESS, and CSS methodologies like BEM for maintainable styling. 
• Work with JSP (Java Server Pages) and Thymeleaf templates to integrate frontend interfaces with backend systems. 
• Optimize applications for speed, responsiveness, and overall performance across devices. 
• Implement lazy loading, bundling, and code-splitting for enhanced performance. 
• Integrate frontend components with backend services via RESTful APIs. 
• Perform cross-browser and cross-device testing to ensure consistent UI. 
• Participate in code reviews, provide constructive feedback, and follow version control best practices using Git. 
• Ensure cross-browser and cross-device compatibility across web and mobile platforms. 
• Collaborate with cross-functional teams to deliver innovative and high-quality web solutions. 
• Contribute documentation, reusable components, and design systems for long-term maintainability. 

Testing & Debugging: 

• Write unit and integration tests for frontend components. 
• Debug and resolve performance and compatibility issues. 

Continuous Learning & Innovation: 

• Stay up-to-date with the latest trends in front-end development, frameworks, and web technologies. 
• Recommend new tools, libraries, and approaches to improve development efficiency and user experience. 

Must-Have Skills 

• Core Frontend: HTML5, CSS3, JavaScript (ES6+), jQuery 
• Frontend Frameworks/Libraries: Bootstrap, Angular, JSP, Thymeleaf 
• CSS Preprocessors & Methodologies: SASS, LESS, Tailwind CSS, BEM 
• Responsive & Mobile Design: Media Queries, Flexbox, Grid, Mobile-First Design 
• APIs & Data Handling: RESTful Services 
• Version Control & Collaboration: Git, GitHub/GitLab/Bitbucket, Branching & Merging Strategies 
• Frontend Testing & Debugging: Jest, Chrome DevTools 
• Problem-Solving & Analytical Skills: Debugging UI issues, optimizing performance, identifying bottlenecks 
• Cross-Browser & Cross-Device Testing: BrowserStack, Lighthouse 

Good-to-Have Skills / Trending Skills: 

• TypeScript for type-safe JavaScript development. 
• UI libraries/frameworks like Tailwind CSS, Material-UI. 
• Testing frameworks such as Jest, Cypress, or Selenium. 
• Experience with CI/CD pipelines and cloud deployments. 
• Knowledge of micro-frontends architecture or modern web development trends. 

Qualification & Soft Skills 

• B.Tech / BE / MCA / Equivalent degree in Computer Science, IT, or related field. 
• Strong verbal and written communication skills. 
• Ability to explain technical concepts to non-technical stakeholders. 
• Collaborative, adaptable, and open to learning. 
• Attention to detail with a creative problem-solving mindset. 

Compensation & Benefits 

• Competitive salary (based on experience). 
• Health & Medical Insurance, Gratuity, and Retirement Benefits. 
• Paid Leaves, Travel Reimbursements, and Performance Bonuses. 
• Access to training programs, certifications, and mentorship. 
• Cross-functional exposure and opportunities for career growth and advancement. 

We are looking for a skilled React Native Developer to join our mobile development team. You will be responsible for building performant, maintainable, and responsive mobile applications for iOS and Android platforms using React Native.

Key Responsibilities:

• Develop cross-platform mobile applications using React Native and JavaScript
• Translate designs from Figma or other specs into responsive UI using Flexbox, StyleSheet, and semantic components like View, Text, and Image
• Work with APIs using fetch, async/await, and implement robust error handling
• Use React Hooks (useState, useEffect, useRef, etc.) and manage component state and lifecycles effectively
• Optimize performance using FlatList, SectionList, useMemo, useCallback, and memo
• Handle accessibility, dark mode, safe areas, notches, and orientation changes
• Implement animations using Animated API and LayoutAnimation
• Use tools like React DevTools, Flipper, and Chrome DevTools for debugging and performance profiling
• Integrate third-party libraries, native modules, or write custom native bridges as needed
• Handle OTA updates, app size optimizations, and splash screens for both platforms
• Set up automated testing using tools like Detox or Appium
• Integrate and manage analytics (Firebase, Mixpanel), Crashlytics, and logging
• Write clean, modular, and reusable code following patterns like atomic design or MVVM

Job Summary:

Core Technical Skills

Strong JavaScript OR TypeScript experience (minimum 2 years)

Angular OR good balance of JS/TS + Angular skills

Understanding of HTTP requests & web technologies

Hands-on project experience in JavaScript ecosystem

Good to have (not mandatory):

Node.js

XPath

Puppeteer

Automation scripting exposure

Coding & Development Skills

Building and maintaining UI components

Writing clean, maintainable code

• Debugging & troubleshooting in production/test environments

Share Cv to

Thirega@ vysystems dot com - WhatsApp - 91Five0033Five2Three

Mandatory Skills 

1. Very strong hands on experience of web technologies: - HTML JavaScript,  HTML5/CSS3,
2.      3 + years of UI Development Experience
3. Has implemented coding patterns and built UIframework
4. Cross browsers support/experience and knowledge of DOM manipulation on different browsers
5. Performance enhancements on web page load and execution
6. Experience with tools like   Firebug.
7. Basics knowledge on Ajax, jsp etc.
8. Experience in Adobe Photoshop & Adobe Dreamweaver to mock up UIelements.
9. Knowledge in any prototyping tools.
10. Use responsive web design to create applications that automatically conform to multiple screen sizes/devices.
11. Conduct usability testing to identify and fix UIissues
12. Familiar with popular UIlibraries like Sencha, AngularJS, ExtJS & JQuery
13. Collaborate with business analyst to discuss user interface requirements and brainstorm UIideas.

Job roles and Responsibilities: 

• Ability to develop UIframework on JavaScript and CSS which confines to requirement of Solutions.
• Ability to work on cross browser compatibility
• Develop reusable components.
• Work closely with other developers in the team

Job Title: Mid-Level Frontend Developer (React/TypeScript)

Job Description: We are looking for a Mid-Level Front End Developer with 2-3 years of experience in React and TypeScript to join our team. The ideal candidate should have a strong understanding of React and TypeScript, and be able to write high-quality, maintainable code. They should also be familiar with module CSS, have experience working with component libraries and state management frameworks, and have a passion for creating beautiful and intuitive user interfaces.

Responsibilities:

●      Develop high-quality, scalable, and maintainable code using React and TypeScript

●      Collaborate with cross-functional teams to design and implement new features

●      Participate in code reviews and contribute to code quality improvement initiatives

●      Use our in-house component library and Storybook to develop reusable components

●      Work with Recoil.js for state management and Context API for in-house libraries

●      Write clean, efficient, and well-documented code that follows best practices

●      Ensure code quality and maintainability through automated testing, linting, and code analysis

●      Stay up-to-date with the latest trends and technologies in front-end development

Requirements:

●      2-3 years of experience in developing front-end applications using React and TypeScript

●      Strong understanding of HTML, CSS, and JavaScript

●      Familiarity with module CSS and component libraries

●      Experience with state management frameworks like Recoil.js and Context API

●      Strong understanding of code quality and best practices

●      Excellent problem-solving and analytical skills

●      Good communication and teamwork skills

●      Bachelor’s degree in Computer Science or a related field is preferred

Responsibilities 
- Develop new user-facing features 
- Ensure the technical feasibility of UI/UX designs 
- Optimize application for maximum speed

Skills And Qualifications 
- 2+ years of experience in ReactJS and Redux 
- 1+ completed project of reasonable size using server-side rendering 
- Knowledge of Preact is a plus 
- Proficient understanding of web markup, including HTML5, CSS3 
- Basic understanding of server-side CSS pre-processing platforms, such as LESS and SASS 
- Good understanding of asynchronous request handling, partial page updates, and AJAX 
- Proficient understanding of cross-browser compatibility issues and ways to work around them. 
- Proficient understanding of Git

• Integrate data from various back-end services and databases
• Gather and refine specifications and requirements based on technical needs
• Create and maintain software documentation
• Stay plugged into emerging technologies/industry trends and apply them into operations and activities

What are we looking for in the Ideal Candidate?

• Proficient in creating Web (Responsive) applications using Angular 8+, AngularJS/ React JS, JavaScript, JQuery.
• Experience developing/consuming REST APIs
• Knowledge of multiple back-end languages (e.g. Python) and JavaScript frameworks (e.g. Node.js)
• Familiarity with databases (e.g.MSSQL, MySQL), and UI/UX design
• Hands-on experience with code versioning systems like Git, SVN.
• A clear understanding of client requirements & design specifications
• Aggressive problem diagnosis and creative problem-solving skills
• Ability to work and thrive in a fast-paced environment, learn rapidly, and master diverse web technologies and techniques.

Attributes:

• Team player, Positive Attitude
• Proven ability to work well with others in a fast-paced, iterative product definition and development environment.
• Able to work independently with little direct supervision and take initiative and willing to mentor and solve problems

Your Responsibilities

• You will be a rockstar front end engineer bringing to life designs and solutions created in collaboration with designers and product managers. You will be responsible for converting the requirements to fast, optimised, usable interfaces, loved by our users.
• You will be the main source of knowledge on everything “front end” related and guide the team to make correct technical decisions to ensure the speed and scale of the solutions deployed.
• Collaborate daily with back-end developers and web designers to improve the usability
• You will be a key person in ensuring that agile processes created by the team are adhered to and you actively contribute to the improvement of these processes. You will be responsible for estimating your tasks and ensuring that promised timelines are met.
• You will be responsible for the performance, security, scalability, reusability and quality of the applications under you. You will collaborate with senior engineering managers/architects to refine & improve your solutions. You will cascade the same culture across the team by supporting and mentoring team members, helping build truly scalable applications
• You will need to collaborate closely with product managers, designers and business stakeholders to achieve predictable results at a rapid pace. 
• You will be able to handle competing priorities and chart the best course of action for yourself and your team members ensuring blockers are removed
• You will help in attracting and evaluating tech talent to help build the engineering brand of the organization.

Desired background & skills

• 3-9 years of experience as an engineer at top tier digital product companies across consumer or SMB. 
• 3+ years of experience in working on front end JS frameworks like React/Angular/Vue
• Excellent knowledge of working with responsive and adaptive designs. Expert in HTML5, JAVAScript, JQuery & CSS. Basic knowledge of SEO.
• Experience of design collaboration tools such as Zeplin, Figma, XD, Invision. 
• Bonus if either you’re a full stack developer with knowledge of the back end or have experience with cross-platform mobile technologies such as React Native or Flutter.
• You have strong problem-solving skills, data structures and algorithms. 
• Passion to work in an exciting, fast-paced environment. conscientious, curious, hard-working individual who craves accountability and loves to solve complex problems.
• You get a kick out of people using and loving your produced outcome.