Lead Frontend Developer

Frontend Developer (React)

Oddr is seeking a skilled and passionate React Developer to join our team. The ideal candidate will have astrong foundation in JavaScript and React, with experience in building scalable and efficient front-end applications. You will work on creating and maintaining web applications using modern tools and frameworks while ensuring high performance and code quality.

Key Responsibilities

• Build and maintain React (v18+) applications using Vite.

• Develop scalable and reusable components following standard React patterns within a feature-based modular architecture.

• Implement function-based components using React hooks.

• Manage application UI state using MobX and server state using TanStack React Query for caching, pagination, and mutations.

• Handle API calls and manage client-server communication using Axios.

• Implement authentication and authorization workflows, including JWT management.

• Optimize React applications for performance, ensuring efficient usage of React hooks and advanced optimization techniques.

• Create and utilize custom React hooks for reusability and clean code practices.

• Work with the Ant Design (Antd) UI component library.

• Write and maintain unit and integration tests using Vitest and React Testing Library, with MSW (Mock Service Worker) for API mocking.

• Configure and utilize Vite for dev server, builds, and bundle optimization (experience with CRA/Webpack is a plus).

• Work with data visualization libraries such as Recharts.

Required Skills & Qualifications

• Solid understanding of JavaScript fundamentals, including inbuilt data structures and logical problem-solving.

• Proficiency in ES6+ features and their practical applications.

• Strong knowledge of JavaScript Promises and asynchronous programming.

• Strong proficiency in TypeScript and its use in a React ecosystem — TypeScript is used throughout the codebase.

• Experience with TanStack React Query for server state management.

• Experience with React Router for client-side routing.

• Familiarity with Vite and modern build processes.

• Knowledge of UI/UX best practices and ability to build responsive, user-friendly interfaces.

• Experience with Ant Design (Antd) or a similar component library.

• Proficiency with Vitest and React Testing Library for unit and integration testing.

• Familiarity with MSW (Mock Service Worker) for mocking API requests in tests.

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.

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, Micro services 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 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 into the Evaluation Review of your team member

Desired Candidate Profile

• Experience in building 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

Sportz Interactive (SI) works with its clients and partners to revolutionize the sports fan experience across consumption points by creating best-in-class, kickass products. SI was founded in 2002 as a B2B sports content business. Through the years, it gained immense reputation for its state-of-the-art hosted solutions, digital simulators, match centers and fantasy games. Sportz Interactive has a fantastic reputation in the online sports community, having worked with clients across the globe including the likes of The International Cricket Council, STAR Sports, Yahoo!, AOL, Eurosport, Castrol, Web 18, NDTV, Nimbus, Times of India, Rediff.com and Singtel amongst others. 

Sportz Interactive provides in-depth sports information and content and specializes in product development for the web, mobile and other interactive platforms. 
http://www.sportzinteractive.net/">www.sportzinteractive.net 

2+ years of experience on web technologies.

Primary Responsibilities:

• Coding and debugging pure JavaScript, polyglot and multi-lingual applications.
• Working closely with Technical Lead/Project Manager to ensure development timelines are met.
• Contribute with ideas to improve system design or streamline product delivery.
• Working with challenging applications involving Real Time Data.
• Working on different platforms including the usage of the Native SDKs provided on JavaScript.

Required Skills:

• Strong experience in developing applications using Javascript and Jquery.
• Minimum 2 years of experience in React.JS is a must.
• Experience in any other Javascript libraries is an added advantage.
• Create different types of Charts and Graphics with the help of HTML5 Canvas, SVG etc.
• Should possess understanding of UI design and its behavior across devices (desktops to smart phones).
• Good to have worked with APIs exposed by social media sites like Facebook, Twitter, Instagram etc.
• Experience in working with data structures such as XML and JSON.
• Added knowledge of mobile development frameworks like jQuery Mobile is an added advantage.
• Good communication and problem-solving skills.
• Should be a self-starter and should have the ability to work under pressure.
• Should be passionate about sports.

Mandatory: Passionate about sports, Problem solving, Team player, Target & Result oriented

• Building of user-facing elements and Integration
• Writing reusable, testable, and efficient code
• Design and implementation of low-latency, high-availability, and real time applications
• Architecting applications and strategizing them to be scalable for traffic.
• Identifying and working on new innovations which can relate to any kind of technology

• 2-3 years of experience with JavaScript, JQuery, Node.js
• Understanding the nature of asynchronous programming and its quirks and workarounds
• Good understanding of front-end technologies, such as HTML5, CSS3, SASS
• Understanding fundamental design principles behind a scalable application
• Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform
• Creating database schemas that represent and support business processes
• Implementing unit tests
• Proficient understanding of code versioning tools, such as Git

passion for all things JavaScript, having built complex single-page applications on React/Redux for at least 2 years.

Profound understanding of HTML, CSS, and browser capabilities to build beautiful, fast and snappy applications.

Comfortable with jest for writing unit and integration tests/puppeteer for e2e tests.

Curiosity to remain updated with the newest technologies and frameworks. Intuition for usability and UI design, with an ability to balance polish with the constraints of timing and scope.

Comfort with any of WebRTC/Backend Stack/React Native is a strong plus.

Most importantly, love coding and debugging gnarly problems! 

• Responsible for development of new highly-responsive, web-based user interface
• Construct visualizations that are able to depict vast amounts of data
• Work and collaborate with the rest of the engineering team
• Work with product team and graphic designers
• Learn and understand user interactions
• Develop a flexible and well-structured front-end architecture, along with the APIs to support it