New York

October 15–17, 2025

Berlin

November 3–4, 2025

London

June 2–3, 2026

Leaf (Jessica) Roy

Leaf is a developer, architect, and author based in Massachusetts.

After 20+ years as a developer, technical lead, and architect, Leaf is writing a book on career growth for developers. She has spoken at Tech Ladies and the Enterprise Technology Leadership Summit, and she is a PMI Agile Certified Practitioner. Leaf is passionate about learning, process improvement, and making developers’ lives easier.

Leaf is an avid reader of leadership and technology books. When not behind a keyboard, she may be found walking, listening to audio books, learning foreign languages, or watching birds. She lives in Massachusetts, neighbor to a horde of safflower-seed-devouring house finches.

“Us vs. Them” thinking

Why us vs. them thinking arises, how to spot it, and how - and why - to bridge the divide.

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