Charlie Schreiber

Head Coach and Director of Programming

Head Coach, Charlie Schreiber, CSCS has been coaching, competing and route-setting for a multitude of gyms on the East Coast for the past 12 years. As an 8-time Youth National Championships Competitor for Bouldering, Sport and Speed Climbing, he has continued his career as an Open competitor and has used his knowledge of competition to teach the upcoming youth of our sport. He helped open the doors of and was the Head Coach and Head (and only) Route Setter at currently set routes and boulder-problems at High Exposure Climbing Gym in NJ for 4 years. For High Exposure, Charlie took a youth team of exclusively first-day climbers, and quickly created a National Champion, a 1st place Team victory at the Regional Championships, 28 individual National Championship invitations, and 3 podium finishes.

Luke Berkowitz

Luke has been training and competing in Ninja Warrior since he was 16. He has qualified for the National Ninja League World Championships in all 3 seasons he has competed. He has also been climbing since 2018 and played hockey since he was 3 years old. Luke has been coaching kids in hockey and ninja since 2018, and he loves to share his passion and energy with those around him at The Factory.

Collin Marshall


Collin has been climbing for 5 years. He enjoys getting to the Red River Gorge for sport climbing, the New River Gorge for sport climbing and bouldering, and the Gunks for trad climbing. He’s also excited to get to new crags and climb on new rock types in the future. 

His favorite things about climbing are the opportunities provided to hang out with friends and the friends he has made through climbing. His climbing goals are to keep training to climb harder and climb as many classics as he can. 

Fun Fact:
He spent a few years working as an environmental engineer before deciding that he wanted to do something different. He is now coaching climbing and pursuing certification to teach high school sciences.

Michelle Gainer

Climbing Coach

Michelle has been climbing for 14 years. Her favorite area to climb is New River Gorge and her favorite thing about climbing is the clarity of being way up above everything. 

Her goal is to someday lead 5.12. 

Fun Fact:
I have driven I 80 across the country 6 times, including 2 trips on the Al/Can

Daniel Taratut

Climbing Coach

Daniel has been climbing for two years. He grew up bouldering off and on at local hometown spots with friends, and has always loved the rock climbing community for its inclusivity and immense diversity. Aside from his climbing endeavors he is a lifelong skier, avid yoga enthusiast, and slackliner. Daniel is currently finishing up a degree in Biology at Temple University and is very passionate about research and teaching. His goal is to one day lead 5.12 and climb in another country.

Fun fact:
Fluent in Russian

Tyler Giesen

Tyler started casually climbing in 2016, and simply fell in love with the sport and accompanying community. Two years later he started working in the indoor climbing industry and became a lead coach at Earth Trek Crystal City in 2019 with the goal of helping young people find themselves through climbing while becoming better humans in the process. In climbing he is always trying to have fun and remember the counterculture and nature-loving roots of the sport. 

Fun Fact: 
Tyler has a degree in physics, a passion for creating ceramic art on the potter’s wheel, and a love for books and reading.

Robbie Jimenez 

Our coach Robbie Jimenez has trained in Ninja Warrior for 5 years. He has been a course tester for seasons 9, 10, and 11 for the Los Angeles region of American Ninja Warrior. Coach Robbie has competed in several Ninja Competitions with high rankings and has even qualified for the World Championship for the National Ninja League.

He has plenty of ninja experience that he is looking forward to share with anyone willing to learn!


Joby has been rock climbing for about 3 years now. He has been coaching ninja and climbing for over a year now. When he’s not in the gym you can find him climbing outside at local areas. He loves to see even the smallest forms of progression in the class or gym setting. 

Fun Fact: He has been skateboarding for 5 years! 

Jake Rosengarten 

Jake has 5 years experience with Ninja Warrior and started rock climbing about 2 years ago. Because he loves helping people work on fitness, he became a ninja coach at iCore in 2016, got his personal training certification in 2020, and coached at OrangeTheory Fitness for over a year. Jake has competed in several National Ninja League competitions, played soccer for most of his life, loves to hike, and enjoys any good workout.

Fun Fact: Jake is planning to start school to become a physical therapist sometime next summer.