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JohnnyWilson16/README.md

Hi, I'm Johnny Wilson Dougherty 👋

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Building reliable AI agents, LLM-powered data pipelines, and robust data-quality infrastructure.

LinkedIn Email GitHub

📌 About Me

  • 🔭 I build Agentic RAG systems, self-healing data pipelines, and production data-quality infrastructure.
  • 🌐 100+ Merged PRs across open-source repositories including FreshData, Semantica (12k+ ⭐), and Tel-Agent.
  • ⚡ Core Contributor (90+ merged PRs) to FreshData — contributed semantic validation, out-of-core streaming, and automated PyPI CI/CD.
  • 🛠️ Tech stack: Python, LangChain, CrewAI, ChromaDB, FastAPI, Pandas, Polars, DuckDB, Pytest.
  • 🎯 Available for Full-Time Remote/Onsite AI/ML Roles and Freelance GenAI/Data Engineering Projects.

🚀 Featured Projects

🤖 Agentic RAG System

  • Autonomous financial report analysis moving past rigid top-k retrieval.
  • Agent dynamically formulates queries, evaluates evidence, and synthesizes grounded insights.
  • Multi-provider model layer (Groq, OpenAI, Gemini, Ollama) with 100% test coverage.

🔄 Self-Healing Data Pipeline

  • Detects upstream schema drift and heals column headers at runtime without crashing ETL jobs.
  • Layered resolution: 0ms exact match → local signature cache → heuristics → LLM reasoning.
  • Zero-PII transmission protocol with automated dtype coercion and audit telemetry.

🛡️ FreshData Engine (90+ Merged PRs)

  • High-throughput data quality engine delivering 118,000 rows/sec corruption cleaning.
  • Implemented field-aware text sanitizers, privacy filters, and PyPI release workflows.

📊 Complaint Intelligence System

  • End-to-end customer complaint triage pipeline using supervised NLP classifiers.
  • Automated routing, sentiment breakdown, and interactive analytical reporting.

🌐 Open-Source Contributions

FreshData Semantica Tel-Agent

Project & Ecosystem Domain Accepted / Merged Contribution & Engineering Impact
FreshData
FreshCode-Org/freshdata		 Data Quality & Out-of-Core Execution Core Contributor (90+ Merged PRs): Engineered semantic validation, context-aware per-cell field validation, and field-aware text sanitizers reaching 118,000 rows/sec at 1.00 F1 score. Implemented streaming data workflows, benchmark suites, and automated PyPI Trusted Publishing CI/CD (View 90+ Merged PRs).
Semantica
semantica-agi/semantica
⭐ 12.8k		 Model Context Protocol (MCP) & Context Infra Nested metadata filtering (PR #1603 — Merged): Resolved nested metadata filtering and normalization in handle_query_decisions (#1247) for MCP-based semantic decision routing and knowledge retrieval.
Tel-Agent
Dpro-at/Tel-Agent
⭐ 330+		 Conversational AI & Agent Channels Mattermost transport & i18n (PR #243, PR #244, PR #248 — Merged): Implemented the Mattermost channel transport for the open-source AI phone assistant agent, resolved gateway auth challenges, and added full internationalization support across committed locales.

🛠️ Technical Skills

Core & APIs

Python FastAPI SQL JSON

AI, LLMs & Vector Systems

LangChain CrewAI ChromaDB HuggingFace Ollama

Data Engineering & Analytics

Pandas NumPy Polars DuckDB

MLOps, Quality & Tooling

Pytest GitHub Actions Git Ruff

📈 GitHub Analytics

📬 Let's Connect

⭐️ Built by Johnny Wilson Dougherty

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  1. agentic-rag-system agentic-rag-system Public

    Production-ready End-to-End Agentic RAG System using LangChain, ChromaDB, and CrewAI

    Python

  2. indian-pharmacy-analytics indian-pharmacy-analytics Public

    SQL-first analytics on 253,973 Indian medicines — stock monitoring, expiry risk, seasonal demand, and supplier optimization. SQLite + pandas + Faker.

    Python

  3. self-healing-data-pipeline self-healing-data-pipeline Public

    Autonomous self-healing data pipeline framework using schema caching, heuristics, and LLM semantic reasoning

    Python

  4. FreshCode-Org/freshdata FreshCode-Org/freshdata Public

    The explainable, semantic data-cleaning layer for pandas & Polars — automated repairs, local AI intelligence, and full audit trails for fresh data

    Python 5 14