I design, build and ship consumer products end to end, from strategy to production. I've been building in tech for over 25 years as an entrepreneur, at Microsoft, Twitter and the last five years at majr.
I've built with AI and machine learning since 2008; first with algorithmic feeds and recommendation systems at Microsoft, then the recommender, segmentation models and data pipelines behind majr's music app. Today I ship products end to end with agentic SWE.
- #1iOS App Store Entertainment category — MX, the artist/fan marketplace from majr
- 20%+launch conversion on MX, from the recommender architecture and segmentation models I designed
- Scaled to ~$1B / quarterSurface revenue across 32 countries. I led consumer product management and doubled it in under two years
- First 10,000app publishers recruited to the Windows store. I owned the store P&L, certification and developer incentives
- CodePlexWrote Forges and Foundations, the strategy paper for Bill Gates that led to Microsoft's first open source foundation and community hosting forge
building now
- Dossier — macOS app that runs on-device LLM analysis of your iMessage threads, built with 100+ privacy and security protections.
- Return Goblin — parses your email to track retailer return windows and reminds you before they close.
- MX — marketplace for direct artist/fan connection. I designed the recommender and personalization stack; 20%+ conversion at launch, 30+ artist and label partnerships in year one.
- MAJR Agent Services — shared infrastructure for AI agents.
- Noah — an AI voice built for reading technical documentation aloud. ~200 creators and teams, 1.7M+ characters generated.
contact
Email me at jmcannon@gmail.com. You can also find me on X, LinkedIn and Instagram.
free time
Frequent Ironman, marathoner, and travel adventurer. I make music sometimes. I try to write regularly.
