# Cole McIntosh

**Engineer & Founder, Mellow AI**

[GitHub](https://github.com/colesmcintosh) · [LinkedIn](https://www.linkedin.com/in/colemcintosh/) · Dallas, TX · [cole@staymellow.ai](mailto:cole@staymellow.ai)

## About

Full-stack engineer who builds the internal tools a company would otherwise buy — backend, data, front end, and the deploy. Agent systems that run daily operations, with the evals and monitoring to keep them unattended: 60% less manual effort in ops, 30% faster ticket resolution. Python and TypeScript, hands-on in Salesforce, Linear, and Jira. Author of LangChain's Salesforce integration and 50+ merged PRs on LiteLLM.

## Experience

### Founder — Mellow AI
*2025 – Present*

- Built a sandboxed coding agent and agentic workflows for a global law firm under strict data boundaries
- Owned the cost and latency tradeoffs on custom OCR: 95% cheaper, 75% faster than the prior path
- Build across harnesses — Claude Code, Codex, Droid, OpenCode, Ori

### AI / Data Engineer — Pay Ready
*2023 – 2025*

- Built a general support agent harness that prompts and skills steer into new workflows
- Shipped a lease and contract extraction API on GPT-4 Vision: 250K+ documents, +25% accuracy
- Built the Slack RAG assistant teams used daily instead of a bought tool: 60% less manual effort, 75% faster retrieval

### Scaled Tooling Analyst — Otter / CloudKitchens (now Atoms)
*2022 – 2023*

- Embedded with ops and engineering on internal tooling: Python pipelines scoring ~500GB/week
- Shipped a Jira ticketing chatbot from discovery to production: 30% faster resolution

### Business Analyst — RealPage
*2021 – 2022*

- Built SQL models and dashboards for 75+ internal users; cut manual reporting 25%

## Open Source

- **LiteLLM** — 50+ merged PRs on the LLM gateway
- **LangChain-Salesforce** — Author of the official Salesforce (CRM) integration
- **Pydantic AI** — Agent framework: xAI tools and model settings
- **SmolAgents** — Hugging Face's lightweight agent framework

## Projects

- **[Open Lease Audit](https://github.com/colesmcintosh/open-lease-audit)** — Streaming lease extraction and cross-portfolio integrity checks in TypeScript, with evidence and confidence per field.
- **[openextract](https://mellow-artificial-intelligence.github.io/openextract/)** — Model-agnostic Python toolkit that turns PDFs, images, and text into typed, structured data. 1K+ PyPI downloads.
- **[pdfmd](https://github.com/colesmcintosh/pdfmd)** — Zero-dependency Rust PDF-to-Markdown converter — parser, decoder, and heuristics end to end. ~4ms on a 17-page paper.

## Education & Certifications

- RAG, LangChain, LangGraph, Semantic Search, DeepLearning.AI
- Azure Applied AI, Microsoft
- AWS Cloud Technical Essentials, Amazon
- Google Cloud Fundamentals, Google