Dave Rosenfeld—Senior Director of Youth and Teens

Dave has been a member of the OFJCC family for over 13 years and has been lucky enough to support and experience the thrill of J-Camp ever since the summer of 2011. He has more than 25 years of experience working with children, knowing from an early age that is what he wanted to do with his professional life.

Dave and his wife live in a popular small town in the South Bay with a house full of kids, pets and snacks to keep them young. He loves to be active and then, after being active, really loves being inactive. Dave is enthusiastic for the kids to see what we have in store for them this year.

Cyrus Mallare-Diethorn—Camp Director

Cyrus joined the OFJCC in the fall of 2012, where he served as the Director of the Club J after school program for 12 wonderful years. In 2024, he relocated with his husband and their four beloved "fur babies" to Miami, where he currently resides. Now, Cyrus is thrilled to return to the OFJCC community as your new Camp Director.

With nearly 30 years of experience working with children and families, Cyrus brings deep dedication, leadership and heart to his role. He is incredibly excited to be back in the Bay Area, reconnecting with family and friends, and rejoining the community he loves.

Outside of camp, Cyrus is a passionate foodie who cannot wait to explore all the new restaurants he missed while living in Miami. He is also a former singer and enjoys collecting vintage 1980s toys.

Monica Valdez—Assistant Camp Director

Monica joined the Youth and Teens team at the OFJCC in 2013. During the years that followed, she took on the role as the Department Coordinator and supported all of the programs in the Youth and Teens Department, including J-Camp. More recently, Monica has been focusing solely on camp and stepped into the role of Assistant Camp Director. This will be Monica's fifth summer in this role and she is looking forward to witnessing the countless friendships that develop over the summer at J-Camp.

As a Bay Area native, Monica loves the San Francisco Giants and Golden State Warriors. During her downtime, Monica enjoys spending time with friends and family, watching Project Runway and getting a workout in at the OFJCC Fitness Center.