Designed and built a novel forensic analysis platform for the Monero blockchain, utilizing state-of-the-art visualization techniques to expose underlying cryptographic structures. Implemented a custom high-performance indexing engine to map ring signatures in reverse, enabling real-time 'forward-looking' traversal of the transaction graph. Leveraged this architecture to implement advanced heuristics, such as automatic tracing of poisoned outputs, to analyze monetary flows within a privacy-preserving network.

Built a self-hosted, non-custodial point-of-sale (POS) system for accepting Monero payments, integrating directly with monero-wallet-rpc. Designed a full payment lifecycle including invoice creation, subaddress generation, real-time status tracking, and webhook-based backend integration. Implemented fiat-to-XMR conversion, underpayment handling, invoice expiration, and background workers for blockchain polling and price updates. Developed a lightweight embeddable checkout widget and browser-based POS interface for both in-person and online use.

Developed a full-stack, OpenWebUI-like application enabling users to interact with locally running large language models via Ollama, supporting persistent chat history, multimodal input (text, image, files), and model switching during conversations, paired with a clean and responsive UI. Integrated a vector database for retrieval-augmented generation (RAG) to enhance contextual accuracy.

Created a web application for browsing, reserving, and purchasing event tickets with graphical seat selection. The system supports full user authentication, advanced search, and handles concurrent ticket purchases to prevent conflicts. Built as a group project following SCRUM principles, with a focus on meeting strict technical requirements and delivering a smooth user experience.