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Long N.
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Long N.

AI Agent & LLM Automation Developer | React, Next.js, FastAPI, AWS

I build AI-powered products end-to-end: LLM agents, RAG systems, chatbots, and workflow automation — shipped on React/Next.js, FastAPI, and AWS. Top Rated Plus, 10 completed contracts, $88k+ earned. I specialize in AI integration, agentic systems, MCP/tool integration, LLM APIs (OpenAI, Anthropic), and RAG, combining them with strong backend architecture and cloud engineering to build AI capabilities that work reliably in real-world production environments. I build modern platforms using FastAPI, React/Next.js, and AWS, with AI integrated as a first-class capability for automation, intelligent workflows, search, document processing, and complex business operations. My approach is pragmatic: clean architecture, clear data flows, production-ready AI integrations, and systems designed to scale and remain maintainable. 🚀 Have an AI idea, PoC, or MCP that needs to become a production-ready product? I can help turn it into a scalable system — from architecture and AI integration to cloud deployment and production delivery.

🇻🇳Ho Chi Minh City, Vietnam$25/hr100% JSS5.00 (8)Since Jul 2023

Earnings and projects

MRR
$3.1k

Last 6 months ÷ 6

World#12,135 / 412k
🇻🇳Country#99 / 3,463
Revenue, last 30 days
$1.8k

Last 6 months: $19k

World#23,479 / 412k
🇻🇳Country#205 / 3,463
Total earnings
$86k

Billed in all: $93k

World#46,043 / 412k
🇻🇳Country#326 / 3,463
Per project
$8.6k

$4.6k in the last 6 months

World#19,156 / 412k
🇻🇳Country#129 / 3,463
Projects, last 6 months
4
0% fixed100% hourly
World#51,815 / 412k
🇻🇳Country#607 / 3,463
Projects in all
10

Across 11 contracts

45% fixed55% hourly
World#201,800 / 412k
🇻🇳Country#1,736 / 3,463

Earnings, last 30 days

$93.4k+$1.8k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$91k$92k$93k$94kOct 8Oct 23Nov 7

Skill rankings: Top 3% in ExpressJS

Ranked by MRR among everyone on Upwork with the skill.

  1. #115Web Application Development2,030 freelancers · 🇻🇳 #1Top 6%
  2. #179ExpressJS5,651 freelancers · 🇻🇳 #3Top 3%
  3. #185Software Development2,923 freelancers · 🇻🇳 #2Top 6%
  4. #262DevOps4,403 freelancers · 🇻🇳 #5Top 6%
  5. #283FastAPI4,337 freelancers · 🇻🇳 #1Top 7%
  6. #377Java8,313 freelancers · 🇻🇳 #10Top 5%
  7. #482MongoDB10,865 freelancers · 🇻🇳 #5Top 4%
  8. #523Amazon Web Services7,488 freelancers · 🇻🇳 #11Top 7%