
React.js Developer
at A Predictive analytics organization with well funded
About organization :
Founded in 2012, the leader in digital identity verification technology for Day Zero and beyond. Our predictive analytics platform applies artificial intelligence and machine learning techniques, with trusted online/offline data intelligence from email, phone, address, IP, device, velocity, and the broader internet, to verify identities in real-time. We have more than 400 customers across the financial services, gaming, telecom, and ecommerce industries, including three of the top five banks, seven top 10 issuers, three top MSBs, multiple tier-one payroll providers, the top credit bureau, and over 75 of the largest and most successful fintechs such as Varo Money, Public, Chime, and Stash. We are funded by some of the world's best investors and entrepreneurs including Accel, Scale Venture Partners, Commerce Ventures, Work-Bench, Sorenson, Citi Ventures, Wells Fargo Strategic Capital, Synchrony, MVB Bank, Santander InnoVentures, and Two Sigma Ventures.
Our trophy case includes numerous industry awards and accolades, including being named one of Forbes America’s Best Startup Employers 2021 as well as the Best New Technology Introduced over the Last 12 months – Data and Data Services at the 2020 American Financial Technology Awards (AFTAs), being ranked #70 on Deloitte’s Technology Fast 500™, getting listed as a Gartner Cool Vendor, and winning Finovate’s Award for Best Use of AI/ML, to name a few!
The only way we can further our mission of becoming the single, trusted source of identity verification and eliminating identity fraud is by building the best team on the planet. This is where you come in!
Total funding amount : $196M
Strong experience in Reactjs
Location : Chennai(Olympia tech park)

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About Us:
We are a fast-growing startup building AI-powered solutions centered around intelligent agents. Our mission is to deliver seamless, intuitive interfaces that make advanced AI accessible to real users through modern, responsive web applications.
Role: Full Stack Developer Developer
We’re looking for a Full Stack Developer who can design and develop production-ready web applications with excellent frontend user experiences and robust backend systems. You’ll work closely with our AI, product, and design teams to build interactive platforms connecting users with intelligent AI agents.
Responsibilities:
- Develop, test, and maintain end-to-end web applications with modern frontend frameworks and scalable backends.
- Collaborate with AI engineers to integrate agent-driven APIs and real-time data into the UI.
- Design and implement RESTful/GraphQL APIs and efficient database structures.
- Optimize application performance, load times, and user responsiveness.
- Write clean, modular, and reusable code following software design principles.
Requirements:
- THE CANDIDATE MUST BE COMFORTABLE WITH FRONTEND DEVELOPMENT AND HAVE A STRONG UNDERSTANDING OF UI/UX DESIGN PRINCIPLES.
- Strong expertise in Frontend Technologies:React.js,HTML, CSS
- JavaScript,TypeScript, and DOM manipulation.
- State management (Redux, Zustand, Context API,Rest API).
- UI libraries like Material UI, Tailwind CSS, or Bootstrap.
- Proficiency in Node.js and Express.js for backend development.
- Strong understanding of database design (MongoDB, PostgreSQL, or MySQL).
- Knowledge of API design patterns, MVC architecture, and low-level OOP design.
- Hands-on experience with Git/GitHub, version control, and collaborative workflows.
- Awareness of real-time data handling (WebSockets), security, and performance optimization.
- Prior experience building or deploying production-grade web applications through past experience and internships.
- Exposure to AI-powered or multi-agent systems.
- Familiarity with Figma or other design collaboration tools.
What You’ll Gain:
- Hands-on experience building real-world AI-integrated full-stack applications.
- Opportunity to work on frontend architecture, design systems, and API integrations.
- Mentorship from experienced full-stack and AI engineers.
- Pathway for conversion to a full-time position based on performance.
We're looking for a Front-end Developer who is able to develop interactive, user-friendly
interfaces which are AMAZING and AESTHETIC in design, appearance, architecture, and compatibility. You will work on a diverse set of unique and challenging projects that allow user to seamlessly interact with technology.
Work Details:
● Deliver best-in-class HTML5/CSS3 front-end code across a broad array of interactive
web and mobile projects
● Excellent eye for layout and ability to translate PSD files into pixel perfect HTML/CSS
code. SASS is a plus.
● Experience with modern JavaScript libraries and frameworks in any of them (React,
Angular or Vue)
● Proficiency working with RESTFUL APIs is a plus
● Intimate knowledge of cross-browser and cross-device development
● Ability to write high-performance, reusable code for UI components, including
appropriate testing
● Some experience in object-oriented programming.
● Strong problem solving, troubleshooting, & analysis skills.
● Familiarity with Linux/Unix environment
● Keen to learn, mentor and willingness to take ownership of work items
● Some experience with distributed version control systems, such as Git
Requirements
● Bachelor’s degree in Computer Science or a related field, or equivalent professional
experience
● Experience working with agile teams and making rapid decisions in a dynamic and
disruptive environment
● 3+ years of relevant software development experience
● Strong communication skills
We are seeking a Frontend Engineer who can expand our product portfolio and make life easier for locals and local businesses. As part of this role, you will build experiences that help users engage and feel comfortable with the products and services we offer.
We need you to understand Angular, Vanilla JS, HTML and (S)CSS.
We need you to understand the philosophy of writing clean and modular code.
We need you to take your own stand and do what's right to find a solution.
"I'd rather listen to a possible solution rather than a 'don\'t know'" would be plausible to you.
Technologies mentioned above is what you can relate to while applying but that's just the tip of the iceberg.
If you get a score of 10 below,
We need you
You need at least 5 points to proceed to next round.
Answer the following questions by attaching a document link with the note:
-
Why choose ngRx over shared angular services? 1 point
-
How are fork join and merge map different? 1 point
-
How do we wrap html elements in our custom component? 2 points
Ex:
This is not a paragraph element
- How will you handle an error produced by RxJS operator's inner observables without failing any other observables that are yet to emit values to its subscriber, so that all the inner observables including errored ones can be piped to another RxJS operator such as fork join, concatMap etc to be handled smoothly for further operations?
Easiest thing would be to generate a pseudo code.
With above question solve this problem:
[Observables....] -> Emit values simultaneously from the array of observables at once (perform a task when an observable finishes) -> toArray -> [emitted values...] -> process each emitted value one by one -> toArray
This will give you 4 points
- How does javascript achieve its asynchronous nature being single threaded? 2 points
• Relevant experience in React JS 5+ Year
• Experience in Hooks, Typescript
• Experience in GraphQL (Query & Mutations)
• Strong experience in Jest for Unit Testing
• Knowledge on docker, K8 and Kafka
● Web fundamentals as HTML, JavaScript, and CSS
● JavaScript/Typescript frameworks, especially Angular 11 and above
● Libraries like jQuery
● CSS Preprocessors like SASS or LESS
● Front-end (CSS) frameworks like Foundation or Bootstrap, AJAX
● Mobile First and Responsive implementations
● Working with REST API's and integrating them properly in a UI layer
- Designing, developing, and testing UI for mobile and web applications
- Build reusable code and libraries for future use
- Accurately translate user and business needs into functional frontend code.
- Developing new user-facing features using React and redux
- Building reusable components and front-end libraries for future use.
- Translating designs and wireframes into high-quality code with proper standards.
- Optimizing components for maximum performance across a vast array of web-capable devices and browsers.
- Work with outside data sources and APIs.
- Added Advantage: Knowledge and experience in Cloud Computing
Skills Required:
- Deep understanding of React.js and its fundamentals, ideally including modern features like hooks
- Excellent understanding of TypeScript/Javascript including the OOP concept and how shadow DOM and DOM work
- Experience with widely used React.js state managers like Flux/Redux
- Knowledge of RESTful APIs
- Familiarity with modern front-end build pipelines and tools like Webpack, Babel, NPM etc
- Knowledge of the overall browser rendering behaviour and measuring and optimising performance
- Strong hands-on experience with source code management systems like Git
1. Translate designs and style guides into functional user interfaces while ensuring cross browser compatibility, performance and good user experience.
2. Solid coding practices with peer code reviews, unit testing and a preference for agile development.
3. Strong sense of collaboration, ownership, urgency and drive.
Technical Skills Required
1. 2+ years of experience in professional front end web and mobile development.
2. Strong programming knowledge in JavaScript, OOJS and Angular 2.0+ is essential.
3. Understand the intericacies of DOM and have good knowledge of APIs' and their performance implications.
4. In-depth knowledge about HTML5 and CSS3 and can take necessary decisions while building responsive UI.
5. Experience using version control (Git).
6. Sharp analytical abilities with excellent problem solving skills.
Good to have
1. Development experience in ReactJS / React Native.
2. Experience in SEO and website optimisation would be great.
Requirements and Qualifications
- Bachelor’s or master degree in engineering
- 7+ years of work experience, 1+ years of experience as a lead
- Proficient understanding of HTML, CSS, and Javascript
- Proficient understanding of ReactJs or similar library
- Good understanding of responsive web development
- Good understanding of SEO and analytics
- Ability to break the business problem into smaller features
- Ability to access the technical feasibility of UI/UX designs
- Build reusable code and libraries for future use
- Optimize application for maximum speed and scalability
- Proficient understanding of cross-browser compatibility










