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Marco is a Senior Mechanical Engineer and lifelong athlete. He grew up playing competitive soccer, competed in national track-and-field events, and has remained active in sports throughout his life.

Over the past 15 years, he has participated in sprint, Olympic-distance, and middle-distance triathlons, including a full-distance Ironman in Italy in 2019.

He has coached youth soccer, volunteered in sports programs, donated equipment and supplies, and helped create opportunities for children who might otherwise have limited access to sports and recreational activities.

His vision is to build an organization where children can discover their potential, explore new opportunities, and develop the confidence to pursue goals they may never have imagined possible.

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Julia Sherstneva is Co-Founder, Director, and CFO/Treasurer of Osito’s Friends Sports and Endurance Academy. She has over 20 years of experience in the insurance industry, bringing strong leadership, financial, and organizational skills to the team.

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Julia has always had a passion for sports and staying active. From childhood gymnastics to becoming a certified yoga instructor, she enjoys swimming, running, cycling, and fitness.

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At Osito’s Friends, Julia combines her professional experience with her love of sports to help the organization grow and create opportunities for kids to build confidence, stay active, and develop healthy habits.

Vladimir Sherstnev, Secretary 

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Vladimir is a longtime supporter of youth athletics and has supported children involved with the Academy in multiple ways.

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He brings continuity, commitment, and a strong interest in making positive sports experiences accessible to young people.

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As Secretary, Vladimir supports the organization's corporate records, meeting documentation, resolutions, and governance administration

BOARD MEMBERS

Marco Barrueta, Founder and President/CEO 

Julia Sherstneva, Co Founder and CFO

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PO Box 230506

Encinitas, CA 92023

info@Ositosfriends.org

CONTACT US: 

PO Box 230506

Encinitas, CA 92023

Serving San Diego County, California

OUR ORGANIZATION

501(c)(3) Public Charity

Donations may be tax-deductible.

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© 2026 Osito's Friends Sports and Endurance Academy. All Rights reserved

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