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Razvan D.
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Razvan D.

AI Systems Architect | Multi-Agent, RAG & LLM Solutions

I build production-grade multi-agent AI systems that actually work, not just prototypes. Under the hood that means hybrid RAG pipelines, graph databases (Neo4j/Memgraph), and the plumbing most demos skip. My focus is on the hard parts: reliable agent orchestration, memory strategies that scale, and deterministic workflows that don't break in production. What I deliver: → Multi-agent systems with proper state management and error handling → RAG and knowledge graphs built for accuracy and low latency → LLM integrations with structured outputs and guardrails → Workflow automation that ties your tools together: REST, OAuth, webhooks, MCP, and third-party apps → Custom MCP servers and Claude builds →†’ Full-stack builds: Python and TypeScript APIs, React and Next.js frontends 8+ years building technology products. Comfortable owning projects end-to-end in async, distributed teams.

🇷🇴Voluntari, Romania$60/hr100% JSS5.00 (1)Since Jan 2026

Earnings and projects

MRR
$2.7k

Last 6 months ÷ 6

World#15,153 / 412k
🇷🇴Country#92 / 2,286
Revenue, last 30 days
$1.9k

Last 6 months: $16k

World#22,680 / 412k
🇷🇴Country#134 / 2,286
Total earnings
$26k

Billed in all: $27k

World#120,599 / 412k
🇷🇴Country#779 / 2,286
Per project
$4.3k

$5.3k in the last 6 months

World#39,795 / 412k
🇷🇴Country#236 / 2,286
Projects, last 6 months
3
67% fixed33% hourly
World#66,479 / 412k
🇷🇴Country#268 / 2,286
Projects in all
6
50% fixed50% hourly
World#250,290 / 412k
🇷🇴Country#1,532 / 2,286

Earnings, last 30 days

$27k+$1.9k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$25k$26k$27k$28kOct 8Oct 23Nov 7

Skill rankings: Top 5% in Prompt Engineering

Ranked by MRR among everyone on Upwork with the skill.

  1. 2Cypher10 freelancers · 🇷🇴 #1Top 20%
  2. #6Contextual Prompt33 freelancers · 🇷🇴 #1Top 18%
  3. #12Neo4j153 freelancers · 🇷🇴 #1Top 8%
  4. #33OpenAI Codex409 freelancers · 🇷🇴 #1Top 8%
  5. #94Vector Database1,142 freelancers · 🇷🇴 #1Top 8%
  6. #146Prompt Engineering2,859 freelancers · 🇷🇴 #1Top 5%
  7. #210AI Consulting2,321 freelancers · 🇷🇴 #1Top 9%
  8. #221AI Implementation2,382 freelancers · 🇷🇴 #5Top 9%