Nguyen VanNhat Huy
I build scalable backend systems and AI agents — Node.js, NestJS, PostgreSQL, and LLM/RAG pipelines.
- 0+
- years experience
- 0
- production projects
- 0Backend
- → AI
01 — About
Backend engineer who ships AI that works in production.
I’m Nguyen Van Nhat Huy, a software engineer in Ho Chi Minh City, Vietnam. I design scalable services, RAG pipelines, and realtime systems — and I care about the details that make a product feel fast and reliable.
versioned sources · pgvector retrieval · streamed answers
02 — Experience
Software Engineer
Jun 2026 — PresentSiliconPrime · Ho Chi Minh City, Vietnam
- 5k+Building an AI agent platform for education: LLM orchestration, tool-calling backend services, and realtime streaming (SSE/WebSocket) serving 5k+ learner sessions daily.
- 85%Implemented a RAG pipeline over versioned course materials with PostgreSQL + pgvector, lifting automated question resolution to 85%.
- 1.2sDesigned a streaming inference gateway holding p95 first-token latency under 1.2s during peak study hours.
- ~35%Cut LLM token spend ~35% with Redis-backed prompt/response caching and context-window pruning.
- Node.js
- NestJS
- LLM APIs
- Agent orchestration
- RAG
- pgvector
- PostgreSQL
- Redis
- Streaming (SSE)
- WebSocket
Full-stack Developer
Feb 2024 — Apr 2026QKIT Software · Ho Chi Minh City, Vietnam
- Delivered end-to-end features across frontend, backend, database, and deployment using Node.js, Express/NestJS, Next.js, PostgreSQL, Docker, and AWS.
- Led a 5-member delivery group: requirement breakdown, API contract design, code review, junior support, QA coordination, and release troubleshooting.
- Designed RESTful APIs, RBAC permissions, background jobs, and realtime flows for healthcare, reporting, and business operation systems.
- ~40%Improved backend performance ~40% on key paths via PostgreSQL schema redesign, indexing, Redis caching, and RabbitMQ async processing.
- Owned CI/CD and production operations across AWS environments — Dockerized services, release debugging, incident investigation.
- Node.js
- Express
- NestJS
- Next.js
- PostgreSQL
- Redis
- RabbitMQ
- RESTful APIs
- RBAC
- WebSocket
- Docker
- AWS
- CI/CD
- Schema design
- Indexing
Frontend Developer
Feb 2023 — Jan 2024QKIT Software · Ho Chi Minh City, Vietnam
- Built production UI modules and admin dashboards with Vue.js, React, and Tailwind CSS.
- Integrated complex screens with REST APIs: auth flows, multi-step forms, searchable tables, pagination, error handling.
- Extracted reusable components, shared layout utilities, and generic API integration layers to improve maintainability.
- Vue.js
- React
- Tailwind CSS
- TypeScript
- RESTful APIs
03 — Skills
A full backend toolkit, AI-native.
Backend
APIs and services built to scale
- Node.js
- NestJS
- Express
- RESTful APIs
- WebSocket
- Authentication
- RBAC
AI Engineering
LLM agents and RAG in production
- LLM APIs (Claude / OpenAI)
- RAG
- pgvector
- Agent orchestration
- Prompt engineering
- Streaming (SSE)
Database
Modeling, messaging, and fast reads
- PostgreSQL
- Redis
- RabbitMQ
- MinIO
- Schema design
- Indexing
- Transactions
Cloud
AWS infrastructure and storage
- AWS
- ECS
- S3
- MinIO
DevOps
Containers, pipelines, and operations
- Docker
- GitHub Actions
- CI/CD
- Linux
Frontend
Product UIs across React and Vue
- React
- Next.js
- Vue.js
- TypeScript
- Tailwind CSS
04 — Projects
Systems shipped to production.
05 — Contact
Let’s build something delightful.
Open to backend and AI engineering roles. Say hello.