Nguyen Khanh Duy · Software Engineer
EXPERIENCES
Internal AI Agent Platforms
07/2025 - Present
- • Built semantic search and contextual understanding with Weaviate, Pinecone, OpenAI APIs, and DeepSeek (self-hosted).
- • Designed multi-tenant architecture with PostgreSQL + Redis, ensuring efficient data isolation and workspace scalability.
- • Implemented license & role management with NestJS, enabling secure enterprise operations.
POS Systems
05/2024 - 07/2025
- • Developed synchronized order and menu updates across multiple devices using WebSocket + Redis Pub/Sub.
- • Optimized transaction flows for data consistency and reliability during peak hours (1000+ orders/hour).
- • Reduced operational latency by ~40%, delivering a smoother experience in fast-paced retail and F&B environments.
ERP Systems
08/2024 - 03/2025
- • Automated enterprise workflows using NestJS + Redis queues, streamlining complex processes.
- • Refactored monolithic services into modular components, improving scalability and maintainability.
- • Integrated external APIs (payment, logistics) with secure token-based authentication.
GoodLaw
01/2024 - 05/2024
- • Developed and maintained the responsive React.js admin website for managing legal cases and consultations.
- • Implemented fullstack features for authentication, case management, and consultation booking across web clients.
- • Integrated REST and GraphQL APIs for data synchronization between front-end and backend services.
Social Platforms
01/2023 - 01/2024
- • Built real-time messaging and notifications with Socket.IO, supporting large-scale user interactions.
- • Operated on a high-traffic Node.js server architecture optimized for SEO-driven content delivery.
- • Developed a CV builder that generated resumes from user data using customizable templates and dynamic layout rendering with Canvas.
SIDE PROJECTS
Personal Portfolio
2024 - Present
- Designed a recruiter-friendly layout with collapsible experience cards.
- Structured content as data-driven modules for easy updates.