Nguyen Trong Doan

• Designed and deployed LLM-powered applications using LangChain, OpenAI GPT-4, and Hugging Face Transformers, enabling document summarization, chatbot interfaces, and knowledge extraction workflows. • Collaborated with data science teams to design PostgreSQL and MongoDB schemas and built Node.js data ingestion services to reliably process high-volume data streams from various social media APIs, reinforcing scalable system integration. • Established a robust testing and quality culture by creating unit, integration, and end-to-end tests using Jest, React Testing Library, and Cypress, while also setting up cloud deployment and CI/ CD pipelines with GitHub Actions and Docker for continuous improvement. • Implemented secure authentication flows and role-based dashboards with React Router and Context API. • Developed a hybrid triage system (rules + ML) that boosted accuracy by 28% compared to heuristics.

• Directed backend and frontend development for a telehealth platform serving 100K+ monthly visits and distributed telehealth dashboards and virtual visit Uls used by 100K+ monthly patients • Built real-time dashboards (WebSockets + GraphQL) that cut clinician response time by 25% • Integrated authentication (OAuth2, Okta) and patient privacy workflows directly into frontend flows • Led a cross-team initiative to establish TypeScript standards and component guidelines, resulting in improved code consistency and reduced development time

• Delivered key features (Threads, Forum Channels, Stickers) with React + TypeScript, reducing frontend bug reports by 40% • Designed reusable Ul patterns and form frameworks using React Hook Form and Zustand for efficient state management. • Enhanced SDLC and CI/ CD processes by implementing TypeScript and GitHub Actions, leading to more efficient development cycles

•Artificial Intelligence •Data Science •Software Engineering •Algorithms & Systems