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Francis1998/README.md
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Senior AI Infrastructure Engineer · San Francisco Bay Area

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What I build

I design and ship production AI infrastructure — systems where model routing, agentic loops, safety controls, and cost budgets are first-class concerns, not afterthoughts.

Current focus areas:

  • LLM routing — task-aware multi-model dispatch, cost optimization, fallback chains
  • Agentic architecture — Observe-Decide-Act loops with durable audit trails and explicit safety gates
  • RAG at scale — multi-hop retrieval, GraphRAG, hybrid dense/sparse pipelines
  • Health-AI safety — scope enforcement, PII de-identification, escalation triggers

Featured Projects

Project What it does
nexus-llm-router Drop-in OpenAI-compatible API that routes requests across LLM providers with task-aware strategies, per-user cost budgets, and durable audit logs
scholar-rag-agent Production-grade Agentic RAG for scientific literature — multi-hop reasoning, GraphRAG, multi-LLM routing
medagent-core Safety-first clinical AI reasoning agent — explicit state machines, Bayesian hypothesis ranking, mandatory disclaimers
multi-bot-agentic Deterministic multi-provider AI-agent orchestrator with rationale traces, safety controls, and durable event logs
agentic-career-search Autonomous AI-agent orchestration engine for job discovery with decision traces, tool adapters, and production-grade run control

Stack

Python FastAPI LangChain LangGraph LLM Serving AI Agents RAG Model Routing Vector Search OpenAI Kubernetes Docker PostgreSQL Redis Prometheus GitHub Actions


Totals

Total commits and total stars

Stars

Total stars across all repositories (last 6 months)

Building infra that lets teams ship reliable AI — without surprises in production.

Popular repositories Loading

  1. multi-bot-agentic multi-bot-agentic Public

    Deterministic multi-provider AI-agent orchestrator — ODA loops, GPT/Claude/Gemini/Kimi adapters, safety controls, event log

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  2. nexus-llm-router nexus-llm-router Public

    Intelligent multi-LLM router with task-aware routing strategies, cost optimization, and production safety controls — drop-in OpenAI-compatible API

    Python 20

  3. interview interview Public

    Backend & infra interview handbook — 9 topics, browsable web preview (make serve), demo GIF, English

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  4. Video-Player Video-Player Public

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  5. Java_bfund Java_bfund Public

    remote

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  6. leetcode leetcode Public

    push forward, expected 5 LTs per day

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