SDE 2 Frontend 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.

Headless Development: Lead the frontend development of our Shopify app, including

building new features, revamping existing functionalities, and optimising performance.

User Interface Design: Collaborate with the design team to implement responsive,

pixel-perfect UI components that align with our brand’s aesthetic and provide an intuitive

user experience.

Custom Theme Development: Create and customise Shopify themes to enhance the

visual appeal and functionality of our online store, ensuring compatibility with various

devices and browsers.

Integration and API Management: Work with third-party APIs and Shopify's API to integrate

necessary functionalities, such as payment gateways, shipping solutions, and marketing

tools.

Performance Optimization: Continuously monitor and improve the app’s performance,

ensuring fast load times, seamless navigation, and a smooth user experience.

Collaboration: Work closely with cross-functional teams, including backend developers,

designers, marketers, and product managers, to deliver high-quality solutions on time.

Code Review and Best Practices: Maintain clean, modular, and reusable code. Participate

in code reviews and ensure adherence to best practices in frontend development.

Troubleshooting and Debugging: Identify and resolve issues, bugs, and performance

bottlenecks in a timely manner to ensure a seamless user experience.

Documentation: Create and maintain comprehensive documentation for code, processes,

and development workflows.

Qapita is a SaaS-Net startup with offices in India & Singapore. Qapita’s vision is to transform how equity is managed and traded in the private capital markets in this region. Qapita’s software solution seeks to automate the equity management process for startups including workflows around CapTables, ESOPs, Due-diligence, and transactions. Qapita’s market place solution seeks to facilitate liquidity to ESOP holders and shareholders via structured liquidity programs and secondary transactions. Qapita seeks to automate all processes for equity matters in private markets via its digital platform.

We are looking for a Senior Frontend Developer who is curious, craves for new challenges and loves to solve problems using latest technology. In this role, you will be responsible for developing and implementing user interface components using React.js concepts and workflows such as Redux, Flux, and Webpack.

You will also be responsible for profiling and improving front-end performance and documenting our front-end codebase.

Our Tech stack:

Frontend: React, Typescript, Html, SCSS

Backend: Linux (Ubuntu), ASP.NET Core, C#, Nginx, MongoDB, EventStoreDB

Responsibilities: As a Senior Frontend Developer, you will be

• Meeting with the development team to discuss user interface ideas and applications.

• Reviewing application requirements and interface designs.

• Identifying web-based user interactions.

• Developing and implementing highly-responsive user interface components using React concepts.

• Writing application interface code using TypeScript following React.js workflows.

• Troubleshooting interface software and debugging application code.

• Developing and implementing front-end architecture to support user interface concepts.

• Monitoring and improving front-end performance.

• Documenting application changes and developing updates.

Desired Skills and Experience :

• Bachelor's degree in Computer Science, Information Technology, or a similar field.

• Previous experience working as a React.js Developer (4+ years).

• In-depth knowledge of JavaScript, CSS, HTML and front-end languages.

• Knowledge of TypeScript a plus.

• Knowledge of React tools including React.js, Webpack, Redux.

• Knowledge of performance testing frameworks including Mocha and Jest.

• Experience with browser-based debugging and performance testing software.

• Excellent troubleshooting skills.

We are seeking a highly experienced and skilled React/Next.js developer to join our team. The ideal candidate will have a strong track record of building and maintaining web applications using React and Next.js, as well as a strong understanding of front-end development. 

Responsibilities: 

• Develop and maintain web applications using React and Next.js 
• Write clean, maintainable, and efficient code 
• Collaborate with the design team to implement visually appealing and user-friendly interfaces 
• Work with the back-end team to integrate with APIs and other server-side functionality 

• Troubleshoot and debug issues as they arise 
• Write and maintain comprehensive documentation 

Requirements: 

• Experience with Tailwind CSS to create custom, responsive user interfaces 
• Experience with CSS-in-JS libraries 

• Experience with Git, npm, and webpack 
• Familiarity with RESTful APIs and GraphQL 
• Strong debugging and troubleshooting skills 
• Ability to work well in a team environment and communicate effectively with other developers and designers. 

Preferred: 

• Experience optimizing performance and scalability of web applications 
• Familiarity with testing frameworks such as Jest 
• Experience with deploying and maintaining web applications 
• Experience with TypeScript 
• Familiarity with other JavaScript libraries and frameworks such as Redux, GraphQL, and Apollo, react-query

As someone who will be a part of our team, your understanding of the product and our customers will be incredibly valuable.

Skills Required

• Thorough understanding of React.js and its core principles.
• Experience with popular state management tool -Redux
• Experience with HTTP based packages like Axios.
• GIT experience is a plus

About You

• You take initiative and ownership to see things through to completion. If it needs doing, you do it.
• You’re eager to take on challenges. When you don’t know something, you embrace the chance to grow and get better.
• We work together as a team, and that means we encourage each other to improve as a team. You are self-sufficient and love the challenge of solving problems and learning new things

As a React.js Developer, you will be involved from conception to completion with projects that are technologically sound and aesthetically impressive.

Benefits:

• Food allowance
• Leave encashment
• Paid sick time

We are looking to hire a Full-time, Remote (India) Frontend engineer to help create a SAAS product from the ground up in a niche industry.
This will be the v2.0 of an existing legacy platform with paying customers. This position is within the first few hires in the founding team of the revamped company.
We are on a mission to build a truly world-class product and deliver at high speeds with high quality.

Read on and apply for the job if you are a doer, likes no BS, think you're competent enough to get things done, want some quiet time every day, want to make a difference, values work-life balance, and enjoy life outside work.

Experience - At least 5 years building scalable SAAS applications in the cloud. It would be great to showcase anything progressive. Education from premier institutions, git contributions, tech blogs, volunteering, pet projects, etc.

Responsibilities -
- Architect, write, deploy and own the (SAAS) product from a technical frontend standpoint working closely with backend engineers and designers
- Create and deliver the product end-to-end all the way to the user
- Write highly performant code and continuously measure performance and make the application better based on benchmarks
- Debug production issues and keep the application quality high always
- Assist with hiring more people when the team grows
- Pick up any appropriate work as in any early-stage company

General Skills Needed -

- Create state-of-the-art user experiences including complex dashboards, pdf reports, complex graphs delivering the end-to-end implementation all the way to the user
- Should be able to build and deploy multi-tenant SAAS applications end to end
- Need to have a technology-agnostic mindset. Should be able to easily pick up any new technology based on the use case
- Should be an expert software craftsman/craftswoman. Must own the code and be proud of what you build
- Write well thought out, well-tested code with extensive unit tests and integration tests so that the addition of future features is easy.
- Must know cloud deployment concepts and be comfortable working on CI/CD pipelines, cost-effective cloud deployment strategies. AWS experience highly preferred
- Must be able to design and architect simple, market-tested yet highly scalable solutions
- Must be able to quickly iterate and produce working software at a high speed. Must not be shy to scrap and rebuild when there is a need
- Must be appreciative of documentation and write well-documented code and technical documentation alongside

Technical Skills Needed -
- Expert level knowledge in JavaScript, HTML, CSS, and modern web development standards and frameworks (React preferred/Angular/Vue/etc)
- Expert level knowledge in the appropriate frameworks

1. React (preferred), Angular, Vue, or other modern frontend frameworks
2. Integrating with Rest APIs
3. PostgreSQL, MySQL, any NoSQL or other database technology

- Expertise in data presentation and reporting - creating beautiful reports and graphs in the UI based on the data collected by the backend
- Must have a great level understanding of various frameworks on authentication and authorization, billing and metrics
- Must have some knowledge in creating cost-efficient and scalable cloud deployments (AWS preferred) and be ready to learn
- Expert level knowledge in industry-standard design patterns and tools

About Mobiquity 

Founded in 2011, Mobiquity provides end-to-end omnichannel digital consulting services to trusted B2B  and B2C brands (HealthCare, Banking, IoT, Big Data, and cutting edge Web & Mobile Applications). With  over 750 employees spread across the USA, Europe, and India, 40 different nationalities combined; we  create compelling digital experiences to help our clients create the best human-centric products. Our  expertise includes Strategy, Design, Product Engineering, Analytics, and Cloud Services. Each day, 50  million users interact with our solutions. 

Our teams are inspired by technology but it doesn’t rule them. We love to learn, we are curious by nature  and committed to making a mark. Working at Mobiquity means that sometimes you’ll be working outside  your comfort zone, and you’ll work with smart people, possibly some that are even smarter than you. We  value people that judge their success by the success of the team and the happiness of customers. 

We’re also proud to be an Amazon Web Services (AWS) Premier Consulting Partner. 

Your responsibilities: 

• You will be working together with fellow junior and senior Frontend developers, helping to improve the group's skill level and exchanging new ideas.
• On a daily basis, you write JavaScript/Typescript/ES6/Angular/React and HTML5, CSS3 (SASS/LESS/Stylus)
• Closely collaborate with designers and the rest of the technical team (Backend, DevOps, QA) to make sure we’re all aligned.
• You will manage projects with open-source JavaScript and TypeScript libraries and frameworks (we're big on React and Angular), and explore new technologies (GraphQL, AppSync, Apollo). 
• Code reviews are, of course, a part of your responsibilities as well as providing high-quality work.

What it takes to excel in this role 

• Strong core JavaScript and TypeScript
• 5+ years of JavaScript development experience
• Minimum of 2 years of experience with either, Angular 5+ or React
• Experience with Webpack/Grunt/Gulp or other automated build tools
• Experience with Jasmine/Jest or other JavaScript testing frameworks and tools• Strong Experience with HTML, CSS, SASS/LESS/Stylus
• Experience with JSON, REST, Web Services
• Experience with working in an Agile environment
• Good communication(in English) and consultancy skills
• Affinity for working in a flexible, diverse and fast growing environment
• Proactive mindset focused on teamwork and continuous improvement - we want to grow together with you

Bonus 

• Experience with AWS
• Experience with React Native
• Experience with GraphQL, PWA, NodeJS
• Experience in a Fullstack position or in a lead position• Experience working in a consultancy company

Dear Applicants

Greeting from SplashBI...! 

Please find the below JD for your reference, 

Role: Senior UI Developer/Angular Developer 

Experience: 3-7 Years

Notice period: immediate – 30 Days

Technologies: 
 
Total experience of 3+ years with experience using Angular 2 / 4 or above but preferably Ver 7 along with JavaScript, HTML5, Bootstrap, Material, CSS, Less/Sass, Typescript 
 
Preferred candidate background 

 
- Good working experience on angular 2 /4 and Above. Preferably 7 but knowledge will do 
 
- Good working experience with Restful Services and API Integration. 
 
-Experience in responsive UI design 
 
-Good Knowledge in working With Karma, Jasmine and grunt 
 
-Good Exposure on Fusioncharts, chartjs, integrating third party libraries with angular. 
 
- Expert in CSS3, BootStrap, Material UI