Senior Front End Developer at A product start up company · Bengaluru (Bangalore) · 4 - 7 years · ₹20L - ₹30L / yr · Posted 4 Sep 2020

What you will work on Your primary focus will be to implement a complete user interface in the form of a responsive web app, with a focus on performance. Your main duties will include creating modules and components and coupling them together into a functional app. A thorough understanding of all the components of our platform and infrastructure is required as you will be working closely with the back-end team to decide REST contracts.
Responsibilties
• Assess the technical feasibility of UI/UX designs
• Develop new user-facing features
• Build reusable code and libraries for future use
• Optimize application for maximum speed and scalability
• Assure that all edge cases are handled
• Collaborate with other team members and stakeholder
What can CasaOne promise you – An opportunity to - increase your rate of learning exponentially by defining hard problems and solving them - partake in a high-growth journey and increase revenues 5x+ Y-o-Y - be an early innovator in the shifting trend: ‘ownership economy’ -> ‘access economy’ - build a category-defining platform for FF&E (Furniture, Fixture, and Equipment) leasing - build high-performance teams
The must-haves
• Good understanding of single-page web applications and Javascript libraries and frameworks, such as ReactJS, AngularJS, and jQuery.
• Good understanding of asynchronous request handling, partial page updates, and AJAX.
• Proficient understanding of web markup, including HTML5, CSS3.
• Basic understanding of CSS pre-processing platforms, such as LESS and SASS.
• Good understanding of responsive web development.
• Proficient understanding of cross-browser compatibility issues and ways to work around them.
• Basic understanding of SEO

Similar jobs (10)
React Developer – Trading & Fintech (Broker-Focused Solutions)
About Us:
At Tradelab Technologies Pvt Ltd, we don’t just build web applications, we create high-performance trading platforms tailored for brokers and financial institutions. Our platforms power real-time market analysis, ultra-low-latency trade execution, and seamless broker-client interactions.
What We Expect:
- 2+ years of front-end development experience, with 2+ years specializing in React.js.
- Deep expertise in React, Next.js, TypeScript, and state management libraries (Redux, Recoil, Zustand, etc.).
- Proven experience in building and optimizing ultra-responsive, high-performance trading platforms for brokers.
- Strong understanding of financial data visualization, real-time charting, order book mechanics, and trade execution workflows.
- Hands-on experience with real-time data streaming, WebSockets, FIX protocol, and API integrations for brokerage services.
- In-depth knowledge of performance optimization, server-side rendering, and rendering strategies for trading dashboards.
- Security-conscious mindset—you know how to build secure, compliant fintech applications that handle sensitive brokerage and trading data.
- A problem-solving mentality that thrives under pressure—brokers depend on our platforms for seamless trade execution, and we deliver nothing less than perfection.
What You Will Do:
- Lead the front-end development of trading applications designed specifically for brokers and financial institutions.
- Architect and optimize blazing-fast, low-latency web applications that ensure brokers can execute trades with unmatched speed and accuracy.
- Design and implement high-performance data visualization components—live stock charts, trade analytics, real-time market depth, and complex order books.
- Work closely with brokers, backend engineers, and UX designers to craft seamless, intuitive, and highly secure trading solutions.
- Solve hard problems at scale—whether it’s optimizing execution speeds, handling high-frequency WebSocket updates, or ensuring zero downtime during peak trading hours.
- Innovate and experiment with cutting-edge front-end technologies to push the boundaries of brokerage solutions.
- Own your work end-to-end—from concept to deployment, ensuring traders and brokers get a flawless user experience.
Must-Have Skills:
- Proven expertise in Front-end development with React.Js
- Deep expertise in React, Next.js, TypeScript, and state management libraries (Redux, Recoil, Zustand, etc.).
- Proven experience in building and optimizing ultra-responsive, high-performance trading platforms for brokers.
- Strong understanding of financial data visualization, real-time charting, order book mechanics, and trade execution workflows.
- Hands-on experience with real-time data streaming, WebSockets, FIX protocol, and API integrations for brokerage services.
Nice-to-Have Skills:
- Experience working on brokerage trading platforms, order management systems (OMS), or risk management tools.
- Contributions to open-source React trading libraries or a portfolio of real-time financial applications.
- Knowledge of regulatory compliance, order execution policies, and broker risk management tools.
- A track record of leading front-end teams, mentoring developers, and driving architectural decisions.
Why Join Us?
- Work with elite engineers and brokerage professionals in the fast-moving world of trading technology.
- Build platforms that brokers, traders, and financial institutions depend on daily.
- A culture that values bold innovation, real-time execution, and pushing the limits of brokerage tech.
- Expect challenges, high expectations, and a relentless pursuit of performance and precision.
- Competitive compensation, performance-driven growth, and a real opportunity to lead and shape the future of trading web applications for brokers.
UI/UX Designer responsibilities include gathering user requirements, designing graphic elements and building navigation components. To be successful in this role, you should have experience with design
software and wireframe tools. If you also have a portfolio of professional design projects that includes work with web/mobile applications, we’d like to meet you.
Scope of Work:
• You will mainly be responsible for developing the frontend side of the web application and enhancing
the user experience through high-level transitions & animations.
• Combine interface design concepts with digital design and establish milestones to encourage
cooperation and teamwork
• Develop overall concepts for improving the user experience within a business webpage or product,
ensuring all interactions are intuitive and convenient for customers
• Collaborate with back-end web developers and programmers to improve the usability
• Work with other developers to ensure that the website is functional and visually appealing.
• Plan the layout of the website.
• Ensure that the website is optimized for various devices.
• Use analytics to test client enjoyment.
• Stay up-to-date on emerging technologies
Essential Requirements:
• Advanced understanding of UI Design patterns and UI Architecture Paradigms
• Expertise in Responsive Web Design and Adaptive Web Designing.
• Solid hands on experience of browser fundamentals, HTML5/CSS3/JavaScript
• Understanding of commonly used frameworks and libraries such as Yii2, Angular, React, Material UI,
bootstrap, high charts, ChartJS and D3
*Strong experience with angular or react
*More than 2+ yrs of experience in angular would be added advantage
*Strong understanding with .net,C# would be added plus
*Experience using HTML5/CSS and other web standards
*Familiarity with Linux and AWS-based environments would be added advantage
*Experience architecting, debugging and optimizing frontend applications to make them fast and reliable
*Excellent with debugging skills and experience in a TDD/ATDD environment
Our client is a decade-old software development company, that offers its clients a wide range of customized web, mobile, and eCommerce tools and software. They are known to use advanced languages and platforms used to build reliable, secure, and scalable solutions for their business clients as well as individual customers. Their disruptive craftsmanship and strategy help in high-performance growth and allows customers to transform digitally and competitively.
Their products are being used by most of the banks and NBFCs in India, apart from clients from other industries. The founder is an IIM and MDI alumni and has experience of more than 13 years in business and strategic roles in MNCs. The company has been accredited by the government as a premier IT company, committed to quality and driven by customer success.
- Architecting and building the applications and coordinating with the teams
- Building other layers of the product infrastructure.
- Building pixel-perfect UIs across both mobile platforms.
- Leveraging native APIs for deep integrations with both platforms.
- Diagnosing and fixing bugs and performance
- Bottlenecks for performance that feels native.
- Reaching out to the open source community
- Implementing mission-critical software fixes
- Maintaining code and writing automated tests to ensure the product is of the highest quality.
What you need to have:
- Experience in building React-Native mobile apps for both Android and iOS platforms.
- Strong understanding of Javascript, ES6 and Clojure Scripts and ES6+ syntax
- Experience in building local storage-based caching and fast performing applications
- Experience with test suites like Mocha or Jest
- Strong understanding of how Redux
- Strong understanding of component state Management
- Experienced in RESTful API integration and good knowledge of how APIs work.
- Experienced in building modular app components that can be reused
- Experienced in creating React Native Bridges for deep integration with Native APIs
- Experience in writing automated test cases for mobile apps.
- Strong understanding of javascript and UI layouts in React Native
- Knowledge of ecommerce application development
We are looking for a full time Reactjs Developer who is well-versed with the process of combining the art of programming with the art of designing.
**Responsibilities:-**
1) Translation of the UI/UX design wire-frames to actual code that will produce visual elements of the application.
2) Work with the UI/UX design team and bridge the gap between graphical design and technical implementation.
3) Should take an active role on both sides and help in defining the look and functionality of the application.
**Skills**
1) Deep knowledge in React.JS Practices
2) Must have minimum 3 years hands-on experience with with NgRX or Redux.
3) Knowledge of JavaScript and HTML5
4) Knowledge of CSS and JS methods.
5) Writing non-blocking code and resorting to advanced techniques such as multi-threading
6) Build and deployment process knowledge. Roles and Responsibilities
Desired Candidate Profile
Perks and Benefits
We are looking for a seasoned frontend developer to join our product team. This role requires you to be a tech-savvy contributor in translating the customer needs and user expectation into interactive web apps. You’ll be an exceptional problem solver and take responsible actions in ensuring the application is optimized both in technology and in delivering best user experience.
Responsibilities:
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 content modules and maintainability of the code.
Implement UI development principles to ensure that the product client-side serves at scale.
Review and optimize the app usage by monitoring key metrics and rectifying the issues proactively.
An ability to perform well in a fast-paced environment and bring in optimal flow for rapidly changing design/ technology.
Requirements:
3 to 5 years of relevant work experience as a web developer, UI developer, JavaScript expert or frontend engineer
Sound knowledge in HTML and CSS
Familiar with UI layouts, SASS, bootstrap and the CSS GRID system
Proficient with JavaScript frameworks such as jQuery, Angular et al
Experience debugging using popular JavaScript-based tools like Chrome Developer Console
Passionate to create good design and usability
A team player with good communication skills
Knowledge of Ember & Ruby will be a plus
• 2+ years experience in developing user interfaces with HTML, CSS, and JavaScript
• Proficient in React, Node, HTML5, CSS3 (Flex/Grid), SASS.
• Develop responsive user interface components and implementing them following well known
React workflows such as Context/Flux/Redux.
• Sound understanding of Redux-Saga, React router, Styled components, ES6, Jest.
• Familiarity with newer specifications of EcmaScript.
• Experience with common front end development tools such as Webpack, Gulp, Browserify, etc.
• Translating designs and wireframes into high-quality code Optimising components for maximum
performance across a vast array of web-capable devices and browsers.
- Developing and implementing highly responsive UI
- Design software with great UX
- Produce clean and efficient code
- Troubleshoot, debug and upgrade existing software
- Management of entire end-to-end project pipeline
- Strong working knowledge of React JS and Redux
- Experience with JavaScript and CSS
- Experience with REST APIs
- Familiarity with browser testing and debugging
- In-depth understanding of the entire web development process (design, development and deployment)
- Understanding of layout aesthetics
- Git knowledge is a plus
- Comfortable in working in Linux based environment
Leading the UX Engineering team at AQR you will be responsible for:
Leading set of front-end engineers towards building core infrastructure required for UI development across the firm
Working closely with the business in Bangalore and Greenwich, CT, USA on defining new internal and external application interfaces
Developing the technology strategy for UI development for the firm
Building re-usable web libraries and user-facing components that support large, complex web applications at the firm.
Designing and developing data intensive UI applications with great emphasis on data accuracy,reusability, scalability and performance
Institutionalizing UI development process compatible to work with product owners, users, backend engineers and operations.
Demonstrating the benefits of good design and user experience across AQR
Optimizing web applications on client side (browser) and server side (web servers) to maximize speed and scale.
Continually drive improvements in web infrastructure at the firm to be up-to-date with the latest in the industry.
What You’ll Bring
Bachelor’s or master’s degree in Computer Science or related field of engineering
Over 14+ years of working experience in leading teams and delivering software applications
Strong experience using modern browser frameworks like Angular, or React or Vue
In-depth knowledge of JavaScript and other browser technologies including HTML5 and CSS3.
Working experience with various front end libraries and components including Highchart, d3, ag-grid etc.,.
Strong understanding of user experience design and data visualization techniques
Familiarity with the whole web stack, including browser JS engine, HTTP, web servers and optimization
techniques
Outstanding coding, debugging skills and analytical skills










