The Team

PyCascades is organized by members of the Vancouver, Seattle, and Portland Python communities. Our goal is to host a diverse, accessible, and memorable conference.

Feel free to reach out to anyone of us with suggestions, concerns or even just to say that you're excited to see us in Portland 😇!

Eric Holscher

Conference Chair

Eric is co-founder of Read the Docs and Write the Docs, a director of the Python Software Foundation, and a proud member of the Portland Python community.

Esti Shay

Conference Chair

Esti is a PyLadies PDX event organizer, PNW native, and works as a software engineer in Portland OR.

Georgia Reh


Georgia Reh is a Portland-based mathematician, rock climber, pylady, git surgeon, and friends with every dog she’s ever met

Mariatta Wijaya


Mariatta is a Python Core Developer, a software engineer at Zapier, Vancouver PyLadies co-organizer, and one of the founding members of the PyCascades conference. She moved to Canada almost two decades ago, and now lives in Vancouver with her husband and two children. In her free time, she contributes to open source, builds GitHub bots, fixes typos, and likes to tell you about f-strings. Her favorite emoji is :stuck_out_tongue_closed_eyes:.

Alan Vezina

Alan is a co-organizer of Puget Sound Programming Python (PuPPy) and works as a software engineer in Seattle, Washington.

Britt Gresham

Britt is a Release Engineer at CircleCI living in Portland. He has spent most of his career focusing on infrastructure automation and uses Python daily in his life. In his free time he enjoys cycling, board games, and cooking.

Eloisa Tran

Eloisa is a Data Scientist and Tech Community Organizer of PyData by NumFOCUS, and PyLadies Seattle. Founder of Women in Data Science conference in Seattle. As an active member of the Seattle tech community Elo collaborates with multiple nonprofit tech organizations to promote diversity and inclusion programs to support women in the field.

Nina Zakharenko

Nina is a Software Engineer with a passion for speaking and teaching, and over a decade of experience writing software for companies like Reddit, Meetup, and HBO. She currently focus on Python at Microsoft on the Cloud Developer Advocacy team.

In her spare time, she enjoys snowboarding, hiking, and tinkering with wearable electronics from her home base in Portland, OR.

Sebastian Vetter

Sebastian is an organizer of the Vancouver Python and Django groups, and a co-organizer of Vancouver Python Day. Seb has been a Vancouverite for almost three years now and loves it here. He is part of the local Python community as much as he loves the outdoor scene. He can’t wait to share the beauty of Vancouver with you all!

Thea Flowers

Thea is an open-source advocate, member of the Python Packaging Authority, maintainer of far too many Python libraries, and part of the Seattle Python community.

Tyreke White

Tyreke is currently a Program Manager at Microsoft for Python in VS Code and Visual Studio. In his free time, he enjoys running, internet surfing, and trying out new group fitness classes through ClassPass! Tyreke also enjoys traveling and is always planning his next adventure!