Meet the Team

David-Dorian Ross

Founder, CEO

Wondering about me? Leveraging the power of the internet, I have had the honor to introduce over 100,000 students around the world to Tai Chi. I am the founder and CEO of TaijiFit, the creator of the TaijiFit mind-body exercise program, and have created more than 150 educational DVDs and television programs. I've taught almost 2000 students TaijiFit, many who are instructing others. I'd love to share my love of Tai Chi with you. If you're interested in this ancient art, this is a perfect place to start.

Support Staff

Heather Powell

Director of Operations and Technology

Heather is go-to for all things operations, squirrel herding, and technology. She also focuses on the majority of the Network Management as well as website development. Having been in the online entrepreneurial space for several years, she’s enjoying the vibe here at TaijiFit.

She’s also a graphic artist and designer, has 6 pigs as amazing pets, and is mom to three beautiful humans.

Jessi Kennedy

Director of Marketing and Creative Services

Jessi has been in the marketing & creative field for nearly a decade. Her focus is ensuring the right information gets to the right people, with a focus on heartfelt messaging that resonates with those for whom it was intended.

On a personal note, Jessi is an avid WoW player, artist, and mom to one human and two dogs.

Jennifer Smith-Petersen

Director of Customer & Interpersonal Relations 

Jennifer is thrilled to be part of the team and is big-hearted, organized, and a natural relationship builder. She has 20+ years of experience working in a wide range of customer-focused environments ranging from supporting a leader in the wellness industry to working with seniors in both activities and social work. Her goal is to help clients achieve their goals.

Mentors + Instructors

Judy Whitlock

Lead Mentor

​Judy's story begins 83 years ago in Storm Lake, IA. After obtaining her Master's Degree, she decided it was best to leave the nest.

Judy taught in Pomona for 31 years (K through 8) and then became a middle school counselor. After retiring, Judy started teaching Water Aerobics.

Then in 2014, she found David-Dorian Ross, signed up for his classes and here she is—happier than a bird with a French fry!

Heather Umberger

Bamboo Fusion Instructor

Heather Umberger (she/her) is a dancer, healer, wellness presenter, movement advocate, and business owner. Over the last 28 years, she has worked in the roles of Rehabilitation Counselor, Bodyworker and Integrative Wellness Practitioner. The techniques she practices (Taijifit, Bamboo Yoga, Relaxation Therapy, Nia, Laughter Yoga, MELT Method, and Ageless Grace) have ignited her own wellness journey and assisted her in achieving remission with a chronic illness. She brings playfulness and curiosity to her private and group sessions and inspires people of all ages and capabilities to use movement variety to “feel better” and awaken authenticity and infinite potential. Learn more at