Nguyen Thi Thu Ha

C.O Tech AI Co., Ltd.

• Built RESTful APIs (Django REST Framework, PostgreSQL) for Offspots, a location-based social and voucher platform: map-pin management, tagging, relationship-based access control, and React/Next.js UI from Figma.
• Solo-built the real-time chat and notification layer with WebSocket (Django Channels, Daphne); media upload and storage on Cloudflare R2, served through Cloudflare CDN.
• Built a NestJS microservice for ConcorAI, an AI chatbot integrating the OpenAI ChatGPT API for conversation and image generation, with Free and Plus tiers.
• Deployed and maintained backend services on a Linux VPS with Docker, Docker Compose, Nginx, and systemd.
• Managed the product's domain and DNS records, and set up Google Search Console to monitor indexing and search performance.
• Implemented JWT authentication, CRUD operations, and role-based access logic; modeled many-to-many schemas with migration-driven changes.
• Worked with a cross-functional team to troubleshoot production issues and resolve Git conflicts.

KPI Management System, Bình Tân Ward

• Built a Django authentication and authorization microservice for a local-government KPI system: registration, login, logout, account management, and RBAC across user roles.
• Integrated the service with a NestJS backend and a Vite frontend, defining shared API contracts; added password hashing, request validation, and standardized error handling.

Phu Hung Securities Corporation

• Developed trading app features in Flutter (BLoC/Cubit), integrating REST APIs and WebSocket streams for real-time stock quotes, indices, and order books.
• Worked closely with designers to implement consistent UI/UX from Figma specifications.

Mini Banking Transaction System · Java, Spring Boot, Spring Data JPA, PostgreSQL

Account creation, fund transfers, and transaction history with atomic @Transactional operations and concurrency control.

Learning & Services Platform · Next.js, NestJS, Prisma, PostgreSQL

Fullstack site with a blog, course sales, art commission page, forum, and project booking. Next.js frontend kept separate from a NestJS backend.

Pro Trader — Trading App · Flutter, Dart, WebSocket, BLoC/Cubit

Real-time stock quotes, indices, and order books. Built with a 4-person team.

Conditional GAN Image-to-Image Translation · Python, PyTorch, GANs, Computer Vision

U-Net generator and PatchGAN discriminator for satellite-to-map translation, trained on GPU and scored with PSNR/SSIM.