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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.

What you’ll be doing

• Lead the development of our platform’s front end.
• Work with the product and design teams along with the founders to build new product features from start to finish: through conception, research, implementation, and maintenance.
• Work closely with founders and internal/external stakeholders to build products, tools, and services from scratch and deliver high-quality software solutions.
• You'll leverage your frontend knowledge to help improve performance and reliability, and polish existing features.
• Share your technical expertise to help the team make thoughtful and scalable design decisions and identify performance bottlenecks to troubleshoot quickly.
• Manage product development priorities, deadlines, and deliverables.
• Ensure high-performant and responsive web applications and websites.

Skills & Qualities we’re looking for

• Bachelor’s/Master’s degree in Computer Science (or equivalent experience).
• 2-4 years of experience as a frontend developer (rare exceptions for highly skilled developers) at a fast-paced, preferably early / growth stage start-up.
• You're familiar with HTML, CSS, Javascript, and a React-like UI framework.
• Knowledge of codebases and version control systems (Git).
• You have experience debugging performance issues with UI in modern browsers across multiple platforms.
• Well-versed with SQL database design & RDBMS concepts.
• Strong arithmetic reasoning, logical and analytical thinking skills.
• Strong knowledge of code quality maintenance and performance analysis.

We are looking for a passionate Senior Software Engineer - UI/UX to join our fast growing team at LogiNext. You’ll collaborate with Product Managers and other UI designers to design new features, translate concepts into living and breathing prototypes, and rapidly iterate on interactions, animations, and details to deliver the best user experience. You will be responsible for conceptualizing & creating highly interactive user interfaces across all supported platforms.

You are passionate about design and are driven to create solutions for our clients that combine business objectives, design principles, and continuous user research into a compelling user experience. You have experience in designing a consistent and adaptable platform-based approach to user experience within a technology-driven and Software-as-a-Service (SaaS) based environment. You are a compulsive problem-solver with excellent visualization and communication skills.

Responsibilities:

• Gather, analyse & process data to determine the user needs & enhance the user experience
• Research & learn new, or re- emerging front- end technologies that facilitate improved user experience.
• Conceptualise designs through storyboards & concept presentations
• Design beautiful digital interfaces and present ideas in a compelling manner
• Perform usability testing with prototypes
• Create wireframes & prototypes to create a perfect user interface
• Create the best visual communication design with graphic design, website design, drawing and illustration, animation, client discussion and standard layouts.
• Mentor other team members in conceptualising and visually articulating design solutions
•  

Requirements:

• Bachelor’s degree or higher in Arts/Commerce/Science/Technology
• 4 to 7 years of experience in UI/UX designing
• Must have experience in designing user interfaces for B2B SaaS Products
• Must have excellent experience using tools such as Sketch, Photoshop, Adobe Illustrator
• Able to work and thrive in a fast-paced, rapidly changing work environment
• Should have excellent communication skills, with an ability to convey ideas clearly & precisely
• Must have leadership skills & a good team player
• Must be pro-active & a self-starter

LogiNext is looking for a technically savvy and experienced Software Engineer to take up front-end development efforts. You will design and develop elegant interfaces that exceed client expectations in terms of value and benefit. You will collaborate on scalability issues involving visualizing massive amounts of data and information. You will identify, define and communicate best practices for front end.

You are passionate about building secure, high-performing and scalable front-end applications. Your design intuition inclines towards usability, elegance and simplicity. You are biased towards open-source tools and existing frameworks. You have demonstrated strong inter-personal and communication skills.

Responsibilities

Translate wireframes into functional requirements, write well-abstracted, reusable, high-performance code for UI components Work closely with design, product management and development teams to create elegant, usable, responsive and interactive interfaces Contribute to continual improvement by suggesting improvements to user interface, software architecture or new technologies Optimize web applications to maximize speed and scale. Support diverse clients from high-powered desktop computers to low-end mobile devices Understand and coach/teach others, show a high level of ethics and team-work

Requirements

Bachelor/Master’s degree in Computer Science, Information Technology or a related field 0 to 1 years of experience in developing responsive, elegant, efficient and cross-browser front-end applications using Javascript, HTML5, CSS3 Hands on experience on various MVC frameworks, UI libraries such as ReactJS, D3.js Hands on experience on Map API’s like Google Maps, Openstreetmap and other powerful information-rich maps Familiar with UX processes and design Proven ability to drive large scale projects with deep understanding of Agile SDLC, high collaboration and leadership Excellent written and oral communication skills, judgment and decision making skills

👋🏼We're Nagarro.

We are a Digital Product Engineering company that is scaling in a big way! We build products, services, and experiences that inspire, excite, and delight. We work at scale — across all devices and digital , and our people exist everywhere in the world (19000+ experts across 33 countries, to be exact). Our work culture is dynamic and non-hierarchical. We're looking for great new colleagues. That's where you come in.

REQUIREMENTS:

• Must-Have: Typescript
• Expertise in TypeScript, HTML CSS, React JS, Unit Testing, Webpack, Service Worker and Web Worker
• Knowledge of high-quality professional software engineering practices for the agile software development cycle, including coding standards, code reviews, source control management, build processes, testing, and deployment
• Fundamental knowledge of design patterns
• Passionate about building great solutions
• Mentoring the team members to meet the client's needs and holding them accountable for high standards of delivery
• Knowledge of multi-site and multi-locale sites would be preferred
• Task delivery, Task status reporting, Proactive Contribution, Process Adherence, Autonomous task delivery, Effort estimation (Strong), Technical risk handling, Technical solutions (Strong), Risk management (Strong), Technical leadership (Capable), Client interaction, Interviewer, Pre-sales support.
• Knowledge of high-quality professional software engineering practices for the agile software development cycle, including coding standards, code reviews, source control management, build processes, testing, and deployment
• Fundamental knowledge of design patterns
• Experience in communicating effectively with users, other technical teams, and management to collect requirements, describe software product features, and technical designs
• Passionate about building great solutions
• Mentoring the team members to meet the client's needs and holding them accountable for high standards of delivery
• Being able to understand and relate technology integration scenarios and be able to apply these learnings in complex troubleshooting scenarios

 RESPONSIBILITIES: 

• Writing and reviewing great-quality code
• Understanding functional requirements thoroughly and analyzing the client’s needs in the context of the project
• Envisioning the overall solution for defined functional and non-functional requirements, and being able to define technologies, patterns and frameworks to realize it
• Determining and implementing design methodologies and toolsets
• Enabling application development by coordinating requirements, schedules, and activities.
• Being able to lead/support UAT and production rollouts
• Creating, understanding and validating WBS and estimated effort for a given module/task, and being able to justify it
• Addressing issues promptly, responding positively to setbacks and challenges with a mindset of continuous improvement
• Giving constructive feedback to the team members and setting clear expectations.
• Helping the team in troubleshooting and resolving complex bugs
• Coming up with solutions to any issue that is raised during code/design review and being able to justify the decision taken
• Carrying out POCs to make sure that suggested designs/technologies meet the requirements

Responsibilities:

• To build next-generation complex web applications that are efficient and modular.
• Works closely with UX designers and back-end engineers to implement versatile front-end solutions and new features.
• Responsible for integration with the services that reside on the back end.

Must-have skills:

• 2+ years of experience in building Single page applications using HTML5 CSS3 and AngularJS.
• In-depth knowledge on HTML5 and CSS is mustHands-on experience integrating upstream services, REST APIs.
• Hands-on with JS and preferably worked with Angular2+.
• Hands-on with automation/bundler like Gulp, Grunt or webpack.
• Extremely detail-oriented to strive for pixel perfection across all browsers.