Shopify 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.

Requirements

Must have (1.5 - 10) years of experience in front end development in an internet startup

Deep knowledge of Angular practices and commonly used modules based on extensive work experience

Proficiency with javascript and html5

Extensive knowledge of CSS and JS methods for providing performance visual effects and keeping the frame rate above 30 fps at all times

Thorough understanding of the responsibility of the platform, database, API, caching layer, proxies and other web services used in the system

Creating custom general use modules and components which extend the elements and modules of core Angular

Ability to understand business requirements and translate them in to technical requirements

Roles and responsibilities

Delivering a complete front end application

Ensuring high performance on mobile and desktop

Writing tested, idiomatic and documented Javascript, HTML, CSS

Co-ordinating the workflow between graphic designer, HTML coder and yourself

Cooperating with the back end developer in the process of building restful API

Communicating with external webservices

Ensure high quality graphic standards and high consistency

Stay up to date on emerging technologies

Write functional requirement documents and guides

Must have skills (Angular 6, CSS, HTML, Javascript (ES5 and ES6), rest ful API, Product company / startup experience)

Roles and Responsibilities :

• Lead the delivery of high quality, innovative, flexible, cost-optimized, and scalable technical solutions that meet business requirements
• Design, Develop, test, and maintain software applications with MVC architectures, Microservices, and scalable cloud-native apps.
• Perform hands-on coding and provide thoughtful code reviews
• Mentor and lead team members to continuously improve quality and productivity of deliverables
• Demonstrate ability to work within an agile team as well as collaborate with many other teams on design and implementation strategies. Follow SCRUM Agile Development methodology
• Effective Communication Skills- An ability to express your ideas to the recipient & Co-ordinate and communicate with cross-functional team along with the client's team
• Problem Solving, Hustler - Get Stuff Done, Self-Disciplined Open-minded, User-Focused, Adaptive
• Lean Principles & Analytical Thinking
• Project planning, timelines, and milestones for execution and deliverables
• Participate in the Evaluation Review of your team member

Primary Skills

• Experience in building an enterprise web application using ReactJS as the frontend framework
• Experience with Redux and React Hooks
• Expert in HTML5, CSS3
• Experience in Bootstrap4 or CSS pre-processor like Less or Sass is highly desirable
• Strong knowledge of best practices and modern web design trends is necessary.
• Some experience with modern web-based typography.
• Excel at rapid prototyping and at writing good code.
• Experience with testing/debugging in multiple browsers and platforms.
• Expertise in using JavaScript
• Should have worked on REST client and WebSockets
• Should be able to write Unit testing using any one of the frameworks like Cypress, Jasmine, Karma, Jest, Enzyme, or any other similar framework.
• Should have experience in either one of the Build scripts like Gulp or Grunt or Webpack
• Low-Latency UI, Page optimization, and bundle build+caching
• Problem-solving and debugging skills
• Component-based architecture

Job Description:

- We are looking for a great Frontend developer who is proficient with Javascript and/or React.js to join us at the earliest.

- You will be entrusted with developing user interface components and implementing them using popular React.js workflows (Flux, Redux, etc.).

- 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.
- Apply now if you love collaborative problem solving, sophisticated design, and ensure the quality is maintained.

Know your work:
- Responsible for the development of a new highly-responsive, web-based user interface.
- Construct visualizations that are able to depict vast amounts of data.
- Building reusable components and front-end libraries for future use.
- Translating designs and wireframes into high-quality code.
- Optimizing components for maximum performance across a vast array of web-capable devices and browsers.
- Develop a flexible and well-structured front-end architecture, along with the APIs to support it.

What you need to apply:
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.
- Thorough understanding of React.js and its core principles.
- Hands-on experience with React Native is an added advantage.
- 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 builds 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 (Git, SVN, and Mercurial)

What you get:
- Amazing workplace and colleagues in the IT corridor of Bangalore
- Competitive salary at par with the best in the industry
- Immense exposure to new technologies

Notice Period & Location:
Notice Period: Immediately or within 2 Weeks
Location: Bangalore/Bengaluru or Pune

No of Positions: 10

Job Type: Full-time

1. Strong expertise with HTML, CSS, and writing cross-browser compatible code
2. Good understanding of AJAX and JavaScript Dom manipulation Techniques
3. Experience with RESTful services
4. Experience in JavaScript build tools like grunt or gulp
5. Expert in Angular, TypeScript, Angular Material and Server Side Rendering (SSR)
6. Hand on and implements complex Angular applications, directives, controllers, services and components, create the same from scratch
7. Experience in Third Party integrations like Payment Gateway, Facebook, Gmail and any other Google APIs
8. Knowledge of state management tools such, NgRx, Redux

1. Develop User interfaces for Modern Rich Internet Applications with the latest Front End Technologies Perform product analysis and development tasks of increasingly complex nature which may require extensive research and analysis
2. Writing tested and documented JavaScript, HTML and CSS
3. Make design and technical decisions for Angular projects
4. Ensuring high performance

About the company

Qrata is hiring for a Venture funded startup that is backed by marquee investors. Their product provides a collaborative new way for SaaS companies to onboard their large customers. Our unified workspace aims to help streamline customer onboarding and implementation journeys, and get every customer off to a great start.

Quick Facts

Founded in: 2020

Number of Employees: 11 - 50 employees

Industries: Computer Software / IT / Internet

Location: Chennai

Senior frontend lead

Description

Are you a front-end developer looking to fast-track your learning and growth? Have you

looked at world class products like Asana, Notion, or Airtable, and felt “I wish I were part of

the early team that built these products”?

we’re a team that has previously built and rolled out globally successful SaaS

products used by tens of thousands of customers. We’re laser focused on delivering a world

class new product again, and looking for an ambitious front-end engineer to join our existing

team.

If it excites you to think of a fast paced start-up environment, building something big from

scratch, breaking down new problems, creating well structured UI components, executing on

pixel perfect design, paying great attention to every little interaction detail, and doing demos

of your work every Friday with a happy and passionate team, then this is the right

opportunity for you.

Some of the tech problems you get to work-on as a front-end developer would include

building real-time collaboration experiences across our product, building live document

editing and modern spreadsheet experiences from scratch, creating flexible new

Kanban-style views of work tasks, and crafting cool new UI components and interactions that

we will use across our product.

Tech Requirements

• Expertise in React
• Hands-on experience in HTML, CSS, SASS & Object Oriented Javascript
• Code audits and guidelines
• SPA Framework patterns
• Browser features (Caching / Storage / Compatibility etc )
• Test automation
• Deployment strategy

Nice to have

• Familiarity with AWS
• Experience with startups or early stage teams
• Typescript
• Knowledge of module bundlers like Webpack

• This job is on Contrecting role Max $70/hr 
   Java or Scala web developer with 8 to 12 years of experience and strong fundamentals/proficiency in core technologies used for web development - HTML, CSS, JavaScript, Spring and Hibernate (to include relational database experience). 

• Object oriented analysis and design patterns using Java/J2EE technologies, 

• Knowledge on Spring Framework, MVC architectures, ORM frameworks like Hibernate  

• Experience with Restful Web Services, data modeling  

• Strong experience in relational database design and development (preferably with Oracle) and understanding of NoSQL databases like HBase, Druid, Solr 

• Experience working with event/message-based communication platforms such as Kafka, ActiveMQ etc., 

• Experience working with Hadoop technologies and Spark framework  

• Working proficiency in build and development tools (Maven, Gradle, Jenkins) 

• Experience with test frameworks like JUnit, Mockito  

• Experience in front end development using modern JavaScript frameworks and charting frameworks

Qualifications

• Bachelor’s/Master’s degree in Engineering with 3+ years experience.
• Strong knowledge in HTML5, CSS, SASS/Bootstrap, OOP JavaScript, JQuery & AJAX are preferred.
• Strong knowledge in developing responsive web app, designing models (JSON) and (Server communication (REST APIs) are preferred.
• Strong knowledge in modern Frontend frameworks & libraries like Angular, Redux + React are preferred.
• Strong Knowledge in HTML templates and modern templating technologies are preferred.
• Strong knowledge in modern libraries like React is preferred.
• Knowledge of NodeJS, NPM packages is a huge plus.
• Knowledge of Gulp, Bower is a plus.
• Knowledge of ExpressJS is desirable.
• Knowledge of Docker is desirable.
• Basic Knowledge of relational DBMS and SQL