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Joe Heitzeberg

Founder · AI Tinkerers

Eastside Entrepreneurs

Founder, AI Tinkerers. Prior: Crowd Cow (>$50M ARR), MediaPiston (acq. Upwork), Snapvine (acq. Whitepages). Former co-founder/President, Madrona Venture Labs. UW CSE, MIT Sloan. Building the global AI Tinkerers community and platform.

AI product strategy technical hiring agentic dev tools full-stack development API integrations
9 presentations 4.3/5 audience rating
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Builder evidence

Presentations

9
Live fixing an agent defect

July 07, 2026 - Paris

5.0/5 (3) Presented

See how a real agent defect was fixed live, demonstrating evals, testing, and system improvement without regression. This talk showcases a complete, working agent system.

Claude Code SDK Claude Haiku Tool calling architecture Agentic loop
4.3/5 (10) Presented

Learn how to automate speaker badges to drive community growth. This talk demonstrates a system that generates, emails, and tracks shareable badges for recognized builders, showcasing a real-world growth automation loop.

Ruby on Rails Sidekiq Open Graph Nano Banana Analytics dashboard
AI Video Editing Pipeline

May 18, 2026 - San Francisco

4.0/5 (4) Presented

Learn how to build a deterministic AI video editing pipeline using LLMs for smart decisions and ffmpeg for reliable rendering, breaking down complex tasks into small, tested skills.

ffmpeg
Instant Viral Video Creator

January 22, 2025 - Seattle

4.5/5 (23) Presented

Learn how to transform any video into a viral sensation using readily available open-source tools in this straightforward demonstration.

AI Tinkerers Global Update

July 23, 2024 - Chicago

3.3/5 (3) Presented

Hear about AI Tinkerers' global growth, hands-on projects, and impactful innovations. Discover how the community actively builds and collaborates, inspiring future AI development.

Youdub.ai

December 05, 2023 - Chicago

Presented

Learn how to create new videos using a YouTube URL and your own voice with Youdub.ai, showcasing Replicate, OpenAI, and FFmpeg.

Replicate OpenAI API FFmpeg
Claude 100k Dynamic Megaprompt

October 04, 2023 - Chicago

Presented

Learn how a RAG + Claude 100k system was built to quickly understand complex medical information for a personal health crisis, sharing practical lessons learned.

Claude 100k RAG OSX Notes Dynamic Megaprompt LLM