Henrietta Dombrovskaya is a distinguished database expert serving as Founder and President, with over four decades of academic and industry experience in data systems and query optimization. She holds a Ph.D. in Computer Science from the Saint Petersburg State University and is widely recognized for her deep expertise in database architecture and performance tuning.

Henrietta is an active leader in the PostgreSQL community, serving as President of Prairie Postgres, a local organizer of the Illinois Prairie PostgreSQL User Group, and a member of the PG Data conference Operations Committee.

A frequent international speaker and author of a book on PostgreSQL query optimization, Henrietta brings both technical depth and community leadership. As Founder and President, she drives the organization’s vision, fosters community growth, and champions education and innovation in the PostgreSQL ecosystem.

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Dian is an experienced data architect and technologist serving as Vice President, bringing over a decade of hands-on expertise in building data-driven systems with PostgreSQL at the core. Since 2015, she has led and contributed to data architectures across diverse domains, including weather logistics, accessibility platforms, and clinical research.

Currently a data architect at Clairity, Dian is building radiological data ingestion, metadata extraction, management, and analysis infrastructure for breast cancer risk prediction. She is also a respected open-source contributor, known for projects like the data mappers MassiveJS and monstrous and the database exploration tool pdot, and brings a strong foundation in data modeling, system design, and developer tooling.

In her role as Vice President, Dian combines deep technical leadership with strategic vision, supporting innovation, community engagement, and the advancement of data-centric initiatives within the organization.

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Anna Bailliekova is a staff data Engineer at XeoMatrix. Previously, she has worked at early stage start ups and enterprise SaaS giants, working on data platforms and developer tools, productizing data science workflows, and optimization problems for TB-scale geospatial data. She lives in Milwaukee, WI.

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Shaun is a long-time contributor to the PostgreSQL ecosystem, with decades of experience in database architecture and high availability. He is widely recognized for his book PostgreSQL High Availability Cookbook and his popular PG Phriday blog series, where he shares practical insights from real-world systems.

Currently a Principal Software Engineer and Postgres SME at pgEdge, Shaun focuses on advancing Postgres as a distributed, cluster-aware platform.

As a member of the organization, he brings deep technical expertise, thought leadership, and a strong commitment to the Postgres community.

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Carlos Aranibar is a Data Scientist and active community member with a strong background in Economics, Statistics, and Data Science. Currently working as an Analytics Developer at Northwestern Medicine, he focuses on data querying, process optimization, and automation to support data-driven decision-making.

Originally from Bolivia and now based in Chicago, Carlos is fluent in both English and Spanish and brings a global perspective to his work. He is an engaged member of the tech community, regularly participating in meetups and contributing as a volunteer within the PostgreSQL ecosystem.

As a member of the organization, Carlos contributes with enthusiasm, continuous learning, and active community involvement, supporting the group’s mission and collaborative initiatives.

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