Full-Stack Software Engineer with 3+ years of experience building high-performance, user-centric web and mobile applications. Skilled in developing scalable solutions using React.js, Next.js, React Native, and TypeScript. Focused on writing clean, maintainable code and delivering seamless user experiences. Experienced in building reusable architectures, optimizing performance, and working on production-grade applications. Continuously exploring new technologies and approaches to build efficient, scalable systems and impactful digital products.
- 🌍 I'm based in Sagar, Bihar
- 💬 My portfolio is [(https://raushanapp.github.io/raushan_kumar_portfolio/)]
- ✉️ You can contact me at sraushan890@gmail.com 💡 Currently exploring system design & scalable architectures
💬 Ask me about:
- React Native performance optimisation
- Scalable frontend architecture
- Micro-frontends
- Trading app development
- React.js,
- React Native,
- Next.js,
- TypeScript,
- JavaScript,
- HTML5,
- CSS3
- Node.js,
- Express.js,
- Postgres,
- MongoDB,
- Redis,
- Redux,
- Context API,
- Redux-toolkit
- Git,
- Postman,
- AWS,
Google Play Store [(https://play.google.com/store/apps/details?id=com.wealthagile&pli=1)]
Apple Play Store [(https://apps.apple.com/ca/app/tokenwell/id1639369761)]
- Built from scratch using React Native & TypeScript
- Multi-exchange support with real-time data
- Built core trading platform features enabling users to execute basket trades across multiple exchanges
- Designed and implemented a flexible basket trading system, allowing users to create custom baskets, trade across multiple exchanges, and manage portfolios seamlessly
- Integrated AI-powered basket generation, enabling dynamic basket creation based on token inputs
- Developed the mobile application using React Native with Expo (Bare workflow), combining native flexibility with Expo tooling
- Implemented secure and scalable authentication flows using Clerk (Expo integration), including session management and user onboarding
- Created scalable and reusable UI components to maintain a clean and maintainable architecture
- Integrated REST APIs to handle trading data and asynchronous workflows
- Optimised application performance by reducing unnecessary re-renders, improving list rendering, and optimising memory usage
- Collaborated with backend, product, and design teams to deliver production-ready features
Apple Play Store [(https://apps.apple.com/us/app/underground-arena/id6754181818)]
Google Play Store [(https://play.google.com/store/apps/details?id=com.anonymous.PadelUndergroundMobile&hl=en_IN)]
- React Native & TypeScript
- Match Lifecycle Management
- Score Logging
- Score Confirmation & Dispute System
- Player & Court Ratings
- Player Reporting
- Jail & Coin-Based Gamification
- REST API Integration
- Production Deployment (iOS & Android)
- Developed new features from requirements to production
- Built complex business logic for match workflows and score validation
- Maintained and enhanced the application for both Android and iOS platforms
- Developed runtime architecture for scalable apps
- Improved modularity and performance
