Front End Developer(Angular Js)

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.

Role:

Senior Frontend Developer

Role Description:

Desired Experience Range 5+ years

Location: Mumbai / Work from Home

Work Experience:

Minimum 5+ years of professional experience in HTML, CSS, AngularJS

Requirements:

1. Must have hands on experience in AngularJS, NodeJS
2. Must have hands on experience in HTML 5, CSS 3
3. Must have hands on experience in developing responsive layouts
4. Must know how to test frontend layouts for various devices and resolutions
5. Must have hands on experience working with SCSS
6. Must have worked with Git
7. Understanding of SDLC process
8. Good to have knowledge of Jira

Key Responsibilites:

1. Converting layouts to HTML/CSS
2. Integrating the created HTML/CSS into the dynamic Slate platform
3. Consuming APIs in AngularJS
4. Setting up oAuth token exchange in AngularJS
5. Looking into any bug fixes post go live
6. Helping the junior developers

Reporting

Candidate will report to the Engineering Lead

Responsibilities

• Use markup languages like HTML to create user-friendly web pages
• Maintain and improve website
• Optimize applications for maximum speed
• Design mobile-based features
• Collaborate with back-end developers and web designers to improve usability
• Get feedback from, and build solutions for, users and customers

Requirements and skills

• Proven work experience of 4-5 years as a Front-end developer
• Hands on experience with markup languages
• Experience with JavaScript, CSS and jQuery
• Familiarity with browser testing and debugging

React JS Developers

Experience: 3-6 Years

Location: Bangalore (onsite)

Responsibilities:

Design and implement user interface components for JavaScript-based web applications

using React JS

 Work as a part of a small team that includes other react JS developers, designers, QA

experts, and managers

 Build app and UI components from prototypes and wireframes

 Built REST APIs for tight integrations with the Backend

 Write automated tests to ensure error-free code and performance

 Improve front-end performance by eliminating performance bottlenecks

 Create front-end modules with maximum code reusability and efficiency

 Work with third-party dependencies and APIs

 Work with Redux architecture to improve the performance of the websites/mobile apps

 Coordinate with the cross-functional teams to build apps in the stipulated time/budget

 Knowledge of TypeScript 

 Knowledge of HTML, JavaScript, CSS, Bootstrap

 React routing, React Hooks, Internationalization

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.

Job Description:

We are looking for an experienced JavaScript developer who is proficient with React.js. The primary focus of the selected candidate would be on developing user interface components implementing and executing them following well-known React.js workflows (such as Flux or Redux). Also ensuring that these components and the overall application are robust and easy to manage. A commitment to collaborative problem solving, sophisticated design, and quality products are important.

Responsibilities:

• Developing the latest user-facing features using React.js
• Designing a modern highly responsive web-based user interface
• Building reusable components and front-end libraries for future use
• Translating designs and wireframes into high-quality code
• Learn and understand user interactions
• Optimizing components for maximum performance across a vast array of web-capable devices and browsers
• Coordinating with various teams working on distinct layers
• As a React.js Developer, you will be involved from conception to completion with projects that are technologically sound and aesthetically impressive. 

Technical skills:

• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
• Thorough understanding of React.js and its core principles
• Prior experience with popular React.js workflows (such as Flux or Redux)
• Familiarity with more current specifications of ECMAScript
• Prior experience with data structure libraries (e.g., Immutable.js)
• Knowledge of isomorphic React is a plus
• Familiarity with RESTful APIs
• Familiarity with HTML / CSS
• GIT experience is a plus
• 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

• Experience with Web Components and Custom Elements
• Understanding of data visualization concepts and technologies (SVG, D3.js)
• Familiarity with JavaScript build tools such as Webpack.
• Git Source Control
• Unit and E2E Testing - Cypress.io / Chai / Karma / Jasmine / etc.
• Experience building responsive interfaces.
• Good sense for building visually appealing products.
• Some Node experience
• Experience using RESTful Web Service Architecture
• Experience working in Agile Environments
• To be considered for this role, you must have:
• A deep understanding of building complex, single-page JavaScript apps using frameworks such as Angular, React, or Vue
• Fluency with JavaScript, TypeScript, CSS and SASS

• In this Senior Front End Engineer position, you will:
• Inherit a well-architected, clean and robust codebase built with TypeScript, Angular, and SCSS/SASS with a modern interface
• Work with our design team and other engineers to make sure our application is performant and intuitive to use
• Evaluate and implement new libraries and components
• Ensure best practices are followed in the design and development of the application
• Contribute to and help manage our open source libraries

• Collaborate with product, design, and other engineering teams to brainstorm and resolve complex problems.
• Ensure the quality of code is up to the highest standard of readability, conciseness, efficiency, modularity, and extensibility.
• Experience with the entire Software Development Life Cycle (SDLC)
• Solid communication skills: Demonstrated ability to explain complex technical issues to both technical and non-technical audiences
• Talking to customers and business teams to suggest improvement areas in product flows.
• Create peer learnings for team members and build context for new teammates
• Help with building the company's tech team and iterating on the hiring framework.
• Provide regular feedback to your team (peers and managers) to ensure continuous improvement.
• Keeping abreast with the latest technologies and working on your skills regularly.

Must-haves

• At least 3 years of experience working in frontend for desktop and mobile web.
• Familiar with design tools and convert them to actual code (HTML+CSS+JavaScript)
• Mastery in DOM Manipulation (including Jquery) and understand components, CTAs.
• Well-versed in other non-vanilla languages (ex. TypeScript)
• Well-versed in standard frontend framework (ex. ReactJS)
• Understanding of GraphQL APIs.
• Deep understanding of web technologies in various mobile systems
• Have empathy for the users you build for

Good to have

• Experience in the fintech industry
• Experience leading design and implementation of robust and secure web services.

Job Title: UI Developer- HTML / CSS / JavaScript

Department: Technology and Research

Location: Mohali, Punjab

Reports to:  Technical Lead

Context

Sampana Digital (SDPL) (http://www.sampanadigital.com">www.sampanadigital.com)  is a digital technology company that provides end-to-end product engineering and digital transformation services. Our engineering services includes web & mobile application development, user experience design, cloud, testing and infrastructure managed services to transform businesses digitally. We also enable enterprises with contextual and personalized two-way multi-channel mobile communications, including SMS, voice, email and PWA technology.

We believe in small teams of smart, committed, and diverse individuals coming together and form a breakthrough insight. We are a team of passionate professionals to craft an unbeatable culture and services.

Come and join us!   

Role Description

We are looking for a creative and skilled UI Developer to develop websites and applications with functionality and aesthetics in mind. The UI Developer will work with Back-End Developers and Front End Developers to ensure that the website is optimized for several devices and presented in an attractive way. As a UI Developer one must have excellent knowledge of HTML, CSS and JavaScript.

Job Responsibilities

• Writes high quality code & unit tests, builds, tests as per agreed timelines
• Participates in technical design and provides estimation
• Owns one or more small to medium features
• Becomes a go-to person in at least one area
• Communicates clearly and gets clarification upfront to minimise rework.

Skills

• Exhibit strong problem solving skills, helps other developers and demonstrates teamwork
• Understands detailed requirements and demonstrates excellent problem solving skills
• Deep understanding of software engineering practices, Design Patterns.
• Hands-on experience in UI framework
• Understanding of web markup, including HTML5, CSS3 and cross-browser compatibility issues.

• Proficiency in converting visual design (created in Adobe Photoshop, Illustrator,etc) into HTML CSS.

• Strong sense of ownership, drive and ability to deliver results
• Strong communication skills
• Must have experience in bootstrap/ responsive design
• Experienced in web performance testing tools