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Staff Directory

President & Artistic Director

Marketing & Public Relations

Jean Hsu

Chief Operating Officer /
Vice President of Communications

Marie Songco-Torres

Senior Marketing & Public Relations Manager


Mark Saville

Vice President of Development

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Halim Kim

Senior Director of Development

Paige Frank

Development Associate

Artistic Operations

Drew Cady

Production Manager

Emily Persinko

Artistic Operations Manager

Kathy Smith

Piano Technician


Sarah Little

Vice President of Education & Community Engagement

Courtney McKinnon

Manager of Volunteer and Education Services

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Chloe Hopper

Education Associate

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Roan Alombro

Vice President of Finance

Jessica Cho

Finance Associate / HR Administrator

Patron Services

Jonathan Mariott

Director of Patron Services

Angelica Nicolas

Marketing & Patron Services Associate /
Board Liaison

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Randy Polevoi

Musical Concierge

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Orange County Youth Symphony

Johannes Müller Stosch

Music Director & Conductor

Dr. Yorgos Kouritas

Interim Conductor

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Cathy Olinger

General Manager & OCYSE Conductor

Danielle Culhane

Operations & Personnel Manager

Moni Simeonov

Coordinator of Strings

Mathieu Girardet

Coordinator of Winds

Jason Ezquerro

Assistant Manager & Librarian