Fullstack Developer

Profile: React.js

Location:  Mumbai

Experience Required: 2+ Years

Employment Type: Full-time

Required Skills & Qualifications

• Experience: Minimum 2+ years of professional experience in React.js development
• Core Technologies:Strong proficiency in JavaScript (ES6+)
• Extensive experience with React.js and its ecosystem
• Solid understanding of HTML5, CSS3, and responsive design
• Experience with state management libraries (Redux, Context API)
• Knowledge of modern build tools (Webpack, Vite, etc.)
• Familiarity with version control systems (Git)
• Technical Skills:Understanding of RESTful API integration
• Experience with testing frameworks (Jest, React Testing Library)
• Knowledge of modern CSS frameworks (Bootstrap, Material-UI, Tailwind CSS)
• Familiarity with TypeScript is a plus
• Understanding of performance optimization techniques

Join our core Platform Implementation Team to build intuitive, high-performance user interfaces for a cutting-edge enterprise Data & AI platform. You will develop scalable frontend applications including AI agent marketplaces, operational dashboards, and real-time chat interfaces that integrate seamlessly with backend APIs to support global business units and insurance advisors.

Key Responsibilities

• Design and develop responsive user interfaces for AI-driven applications such as web/app chat interfaces, AI copilots, and personalized content delivery systems.

• Build complex, data-rich dashboards supporting MLOps, GenAIOps, and AgentOps workflows to monitor model performance, manage approval gates, and track infrastructure costs.

• Develop a centralized Agent Marketplace portal for discovering, publishing, and managing reusable AI agents with strict versioning and access controls.

• Integrate frontend applications with APIs to consume reusable AI business services (e.g., document intelligence) and enterprise data products.

• Handle real-time data streams and asynchronous interactions to ensure smooth, low-latency user experiences for chat SDKs and streaming APIs.

• Implement robust state management solutions to support complex user workflows, session states, and multi-step AI agent interactions.

• Optimize frontend performance for high-traffic enterprise applications ensuring fast load times, smooth rendering, and cross-browser/device compatibility.

• Ensure all frontend implementations follow enterprise security standards, data privacy requirements, and WCAG accessibility guidelines relevant to the BFSI sector.

• Collaborate closely with UI/UX designers, backend engineers, integration engineers, and ML architects to bridge design and technical implementation.

• Write and maintain comprehensive unit and integration tests to ensure UI reliability and prevent regressions during continuous deployment cycles.

Must-Have Skills

• Experience with modern frontend frameworks such as React, Next.js, Angular, or Vue.js for building complex SPAs and SSR applications.

• Strong proficiency in JavaScript (ES6+) and TypeScript for writing scalable, maintainable, and type-safe code.

• Familiarity with modern styling approaches such as Tailwind CSS, SASS/LESS, Styled Components, Material UI, Ant Design, or Bootstrap.

• Experience building interfaces for AI/ML platforms, such as chatbot UIs, prompt engineering tools, or complex data visualization dashboards.

• Experience integrating frontend applications with REST APIs, GraphQL, WebSockets, and handling asynchronous data fetching using tools like React Query, SWR, or Axios.

• Familiarity with cloud-native deployment environments such as GCP Cloud Run, Firebase, or Azure Static Web Apps and build tools like Vite or Webpack.

• Hands-on experience with frontend testing frameworks including Jest, React Testing Library, Cypress, or Playwright.

• Experience integrating enterprise Identity and Access Management solutions such as OAuth 2.0, OIDC, or MSAL.

• Understanding of CI/CD pipelines for frontend applications and automated deployment workflows.

Good to Have

• Experience in the Life Insurance or broader BFSI domain with familiarity with user personas such as insurance agents, underwriters, or policyholders.

Responsibilities:

• Review, Evaluate, and Validate technical requirements.
• Work and lead other team members to translate the requirements into final deliverables.
• Understand Storyboards and Visual mock-ups.
• Understand and utilize the latest tools, technologies, and trends in Web development.
• Ensure the deliverables meet Primathon standards, and guidelines.
• Developing your frontend capability in complex problems and expanding your horizon of technologies.
• Responsible for designing, coding and modifying web pages that are focused on content within the standards, guidelines and requirements of clients.
• Work with clients, and other team members as appropriate.
• Understand and utilise the tools and technologies being used.
• Work with CTO to keep on track with the project plan.
• Come up with efficient, modular and scalable solutions for business and technical problems.

Requirements:

• Experience with Frontend technologies (React.js ).
• Proficient understanding of web markups, including HTML, CSS-3
• Proficient with modern JavaScript (ES6+: classes, modules, arrow function, destructuring etc).

Not just a delivery company…

RaRa Delivery is revolutionising instant delivery for e-commerce in Indonesia through data driven logistics.

RaRa Delivery is making instant and same-day deliveries scalable and cost-effective by leveraging a differentiated operating model and real-time optimisation technology. RaRa makes it possible for anyone, anywhere to get same day delivery in Indonesia. While others are focusing on ‘one-to-one’ deliveries, the company has developed proprietary, real-time batching tech to do ‘many-to-many’ deliveries within a few hours.. RaRa is already in partnership with some of the top eCommerce players in Indonesia like Blibli, Sayurbox, Kopi Kenangan and many more.

We are a distributed team with the company headquartered in Singapore 🇸🇬 , core operations in Indonesia 🇮🇩 and technology team based out of India 🇮🇳

Future of eCommerce Logistics.

• Data driven logistics company that is bringing in same day delivery revolution in Indonesia 🇮🇩
• Revolutionising delivery as an experience
• Empowering D2C Sellers with logistics as the core technology

A section describing benefits and life at your company is a great way to attract talent.
About the Role

1. Architect, build, and maintain excellent React Native applications with clean code.
2. Implement pixel-perfect UI's that match designs.
3. Implement clean, modern, smooth animations and transitions that provide an excellent user experience.
4. Integrate third-party APIs.
   1. Work as part of a small team to build applications.
5. Write unit and integration tests.
6. Release applications to IOS and Google Play stores.
7. Work with native modules when required.
8. Work as part of a small team, which will include other React Native developers, a project manager, QA professional, and designer.
9. Complete two-week sprints and participate in sprint retrospectives and daily standups.
10. Assist with building estimates.
11. Interface with clients via Slack, Zoom, and email.
12. Track your time throughout the day using Toggle.
13. Work with modern tools including Jira, Slack, GitHub, Google Docs, etc.
14. Be part of a community of React Native developers who share knowledge and help each other as problems arise

Responsibilities

• Developing new user-facing features using ReactJS
• 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
• Understand business requirements and translate them into technical requirements
• Building robust applications that can handle both unexpected errors and heavy load

• 3+years experience in Reactjs
• Strong proficiency in JavaScript and Typescript
• Strong Knowledge of Redux/React Context/Hooks
• Strong Knowledge of frontend end technologies such as HTML/CSS
• Experience developing with responsive applications
• Knowledge of modern authorization mechanisms, such as JSON Web Token
• Familiarity with modern front-end build pipelines and tools like Webpack or Create React App
• Familiarity with Git

• Develop new user-facing features
• Build reusable code and libraries for future use
• Ensure the technical feasibility of UI/UX designs
• Optimize application for maximum speed and scalability
• Assure that all user input is validated before submitting to back-end
• Collaborate with other team members and stakeholders