Cole McIntosh

Engineer & Founder, Mellow AI · Dallas, TX

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.

Role: AI engineer; founder of Mellow AI
Based in: Dallas, Texas, USA
Company: Mellow AI (founded 2025), staymellow.ai
Focus: Production AI agents, document extraction, and retrieval systems
Languages: Python, TypeScript, Rust
Notable work: Extraction platform for a global law firm; lease extraction over 250K+ documents
Open source: Author of LangChain's Salesforce integration; 50+ merged PRs on LiteLLM
Contact: cole@staymellow.ai

Experience

Founder

2025 – Present

Mellow AI

Rebuilt the core extraction platform for a global law firm: new UI and architecture
Cut OCR cost 95% and latency 75% with a custom pipeline
Built openextract, open source LLM extraction in Python and TypeScript: 10+ model providers, v1.0 on PyPI

AI / Data Engineer

2023 – 2025

Pay Ready

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

2022 – 2023

Otter / CloudKitchens (now Atoms)

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

2021 – 2022

RealPage

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

Tradewind — Turns DFW building permits into dated, trade-specific leads for subcontractors: what the job is, what the scope is worth, and the week to bid it.
Nudge — Delinquency case planner on LangChain Deep Agents: specialist subagents, drafted outreach, and human approval before anything reaches a resident.
openextract — Model-agnostic Python and TypeScript toolkit that turns PDFs, images, and text into typed, structured data. 1K+ PyPI downloads.
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

MCP

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https://colemcintosh.io/mcp