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Jimmy M.
Expert-Vetted

Jimmy M.

Senior AI Engineer - Agentic Systems & LangGraph | RAG, Neo4j, FastAPI

🧭 **I design and build agentic systems that survive production — observable, evaluable, and maintainable by your team after I leave.** 🏅 **Expert-Vetted | 100 % Job Success | Physics PhD, $90K+ earned. Recent: VIVIA (real-estate multi-agent platform, WhatsApp + voice + CRM) and a Neo4j-backed RAG pipeline rated ★5.0 Agents fail where teams don't look: prompt fragility, silent regressions, untraced failures, no fallback paths. That's the first thing I plan for. 🏗️ **Architectural scope I cover** - Multi-agent orchestration with LangGraph — explicit state machines, checkpointing, human-in-the-loop - GraphRAG on Neo4j — entity resolution, hybrid retrieval, explainable reasoning paths - Agent evals & observability — LangSmith / custom tracing, regression suites, cost dashboards - Production deploys — vLLM / Docker / Kubernetes, load-balanced inference, fallbacks across providers - Integration layer — WhatsApp, Twilio voice, CRM APIs, MCP servers, webhook resilience 🔬 **Background** PhD in Physics + years as a quantitative researcher. I treat agent behavior as a measurable system — I run experiments, log everything, and challenge claims that don't come with numbers. ✅ **Recent work** - **VIVIA** — Multi-agent real-estate platform: channel-agnostic core, per-agency scoping, lead follow-up sync, voice calls, CRM integration. Led modular refactor from monolith to clean separation of concerns. - **LLM/VLM fine-tuning & deployment** — custom load-balanced GPU platform, $10K+, ★5.0. - **AI Compliance system** — LLM guardrails, evaluation harness, and audit trail for regulated-industry workflows (i.e., full traceability). - **Neo4j calendar-event ingester** — production graph pipeline, ★5.0. 🛠️ **Stack** LangGraph · LangChain · LlamaIndex · Neo4j · Qdrant/Pinecone · Supabase · vLLM · FastAPI · Python/Cython/C++ · Docker · Twilio · MCP · WhatsApp/Notion SDKs If you're scoping an agent or RAG system and want someone who'll push back on the architecture before writing code — **let's talk.** 📬

🇵🇪Trujillo, Peru$60/hr100% JSS4.93 (6)Since Mar 2020
GlobeUpwork

Earnings and projects

MRR
$0

Last 6 months ÷ 6

World#44,199 / 412k
🇵🇪Country#80 / 790
Revenue, last 30 days
$0
Total earnings
$90k

Billed in all: $94k

World#44,199 / 412k
🇵🇪Country#80 / 790
Per project
$6.9k
Projects, last 6 months
0

Across 1 contracts

100% fixed0% hourly
World#209,850 / 412k
🇵🇪Country#407 / 790
Projects in all
13

Across 21 contracts

33% fixed67% hourly
World#175,712 / 412k
🇵🇪Country#236 / 790

Earnings, last 30 days

$93.8kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$92k$93k$94k$95kOct 8Oct 23Nov 7

Skills