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• Designed and extended architecture enabling database engineers to add new rows in specific tables, with the front-end side automatically generating a complete module that includes routes, virtualized tables, necessary filtering, and actions • Built a custom Apollo GraphQL cache mechanism that listened to subscription events and updated the UI in real-time, that cut server requests by 35%. • Implemented a custom form builder used by 3+ teams This tool allows the creation of complex forms with dependent fields, complex validation and works with APIs in real-time • Rewrote a legacy report builder, creating a separate module with drag-and-drop features, improving report generation flexibility and user experience by 40% • Led and involved the front-end team in improving end-to-end testing • Collaborated with up to 10 front-end devs, communicating ideas for project success and conducted thorough code reviews to maintain code quality and adhere to best practices

• Enhanced code reusability and maintainability by dividing modules into monorepo • Built a liveness detection app using AWS Amplify’s FaceLivenessDetector to verify user identity as part of a shared module used across 3 apps in our monorepo. • Added e-signature and ID verification so users could securely sign documents and verify their identity with less friction. • Built an invoice system for freelance users with dynamic steps and detailed validation depending on their profile and status. • Managed the full Expo app publishing pipeline including setting up internal testing, EAS builds, and handling releases for Play Store and App Store.

• Developed a cross-platform NFT trading platform (Web + React Native) using modular, performant architecture with reusable component libraries, boosting user retention by 25%. • Integrated secure and efficient trading flows using Ether.js and Solidity smart contracts, reducing transaction errors by 40% through reliable Web3 interactions and frontend validation. • Implemented an immersive “card pack opening” feature with randomized NFT generation and smooth animations, driving higher user engagement. • Built a responsive, real-time card inventory interface integrated with wallets, allowing users to intuitively view and manage their NFT assets.

• Built a sophisticated registration process with dynamic branching logic based on user choices • Built a polished, pixel-perfect component library in React to ensure design consistency across the app • Engineered an eShop with Next.js, expanding the platform's capabilities and enhancing user engagement • Integrated SSR to improve initial load times and SEO, resulting in a 30% increase in page speed scores

- Developed an online banking ABS platform, ensuring secure and efficient handling of banking operations React and .NET Core - Created and optimized several types of reports using complex SQL queries to enhance data analysis and decision-making - Supervised and trained interns in preparing and executing learning plans for Online Bank new employees