Nguyen Cong Quan
Frontend Developer / Software Engineer
3rd-year Software Engineering student at Saigon University (SGU). Passionate about React, Next.js, TypeScript, and clean web application architectures.
Building fast, accessible, and scalable web applications with modern frontend architectures.
Nguyen Cong Quan
@cq_wuan
Software Engineering · GPA 3.1Featured Projects
Production-grade applications combining UI craftsmanship, high performance, and complex system integrations.
RAG Assistant
Localized AI document Q&A system with OCR extraction and vector similarity search.
- Local RAG architecture powered by Ollama (Qwen2.5:7B) to maintain complete data privacy
- Multi-format document parsing: PyPDF for text extraction and Tesseract OCR for scanned images
- Text splitting via RecursiveCharacterTextSplitter (1000 characters chunk size, 150 overlap)
About Me
Software Engineering student at Saigon University, specializing in Full-stack web development, modern Frontend engineering, and applied AI systems.
Computer Science Core
Algorithms & Databases- Data Structures & Algorithms (C/C++, Python); Object-Oriented Programming (Java)
- Relational database design (PostgreSQL, MySQL), schema normalization, and SQL query tuning
Full-stack Development
Client-Server & RESTful APIs- Full-stack application development from Frontend to Backend (Node.js, Express, Spring Boot, Laravel)
- JWT auth, Google OAuth2, RBAC access control, VNPay gateway integration, and Docker containerization
Frontend & UI Engineering
React 19 & Next.js Ecosystem- Specializing in Next.js (SSR/SSG, App Router), React 19, TypeScript, state management, and clean components
- Modern, responsive UI engineering with Tailwind CSS, ShadCN UI, focusing on Core Web Vitals and UX
RAG Systems & Applied AI
LLMs & Vector Database- Engineered full-stack RAG platform with FastAPI, ChromaDB, Ollama, Gemini, and hybrid retrieval (Vector + Knowledge Graph)
- Document processing pipeline (parsing, chunking, embedding), real-time SSE streaming, and persistent chat history
Technical Skills
Technologies, frameworks, and engineering principles actively used across production projects.
Frontend & UI Engineering
Crafting high-performance, accessible, SEO-optimized web interfaces with modern component architecture.
RAG Systems & Local AI
Engineering self-hosted RAG pipelines, hybrid semantic retrieval, and private data sovereignty.
Backend & System Services
Building RESTful APIs, JWT authentication, RBAC access control, and realtime data flows.
Databases & Storage
Relational schema design, SQL query optimization, caching, and vector indexing.
DevOps & Engineering Flow
Containerization, CI/CD automation, version control, and development workflows.
Experience & Education
Professional internships, academic foundations, and key milestones in my software engineering path.
Frontend Developer · VNA International Technology JSC
- Contributed to the Occupational Safety and Health Management System, assisting enterprises and authorities with online report submissions and processing.
- Developed user interfaces from Figma designs: Authentication, Enterprise Management, User Management, Role-Based Access Control (RBAC), System Settings, and Reporting.
- Utilized Next.js, React, Material UI, Tailwind CSS, React Hook Form, and Axios for interactive UI development and backend API integration.
- Implemented dynamic routing, complex form handling, Excel file uploads, pagination, data filtering, and dynamic reporting.
- Applied clean code principles, performance tuning, and reusable component modularity.
- Collaborated closely with the backend team on API contracts, integration reviews, and end-to-end troubleshooting.
Frontend Developer · Viethas Technology Solutions Co., Ltd
- Contributed to web app development with AngularJS and Firebase for user authentication and real-time database.
- Developed responsive UI components, optimized performance and user experience across multiple devices.
- Utilized GitHub for version control and agile task management (Issues/Projects).