Helping children stay active is our goal - and our passion.

GrowFit was co-founded in 2011 by Russ Nuffer. Inspired by his happy childhood memories, which all seemed to involve sports and friends, Russ sought to provide that same fun experience to today’s children and spark an interest in movement and exercise. Rather than the competitive sports environment found in many programs, Russ wants GrowFit to provide a safe atmosphere for all kids to enjoy sports and play safely with each other.

 

Our Approach

  • We personalize the learning experience. Each child is allowed to learn and develop at their own pace, leading to skill competence and confidence.

  • We focus on fundamental motor skills.  These skills are the building blocks for specialized movement patterns that allow kids to take part in a range of activities.

  • We keep students moving. Our activities incorporate a great deal of aerobic exercise to deliver immediate health benefits.

  • We make PE enjoyable. To keep kids engaged and moving, we make sure that each session seems like play, not work.

  • We offer decades of experience. To tap our team’s collective wisdom, we encourage knowledge sharing—so that each instructor is much more than just a teacher.

  • We provide a supportive environment. Children learn best when they’re in a non-competitive setting focused on each kid’s self-improvement.

 

Our Values

In addition to developing their motor skills, we share with children life skills that will allow them to be great teammates and adults:

  • Be respectful. It is important for kids to be open minded to others’ needs and feelings. They will learn to show respect to others, themselves and the sports equipment.

  • Work hard. GrowFit kids learn to become risk takers, to be brave and try new things. It is important for kids to try their best and understand the need for practice when learning a new skill.

  • Be honest. Kids will learn to be honest with themselves and with others.

 

Our Team

Russ Nuffer

Co-Founder, CEO

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Russ is a nationally certified personal trainer with the American College of Sports Medicine and a certified Double Goal Coach by Positive Coaching Alliance. In addition to founding GrowFit, he's the Director of Fitness for The Fit Kids Foundation, a 501(c)(3) non-profit corporation that brings a free after-school fitness program to children in underserved communities. He was also on the advisory committee of Stanford GOALS, a research project aimed to improve health through sports and physical activity. With a lifetime love of sports and the outdoors, he enjoys helping people discover the fun in physical fitness and is passionate about introducing a healthy lifestyle to young children. Russ graduated from Cal Poly, San Luis Obispo with a BS in Kinesiology (concentration in Physical Therapy) and a minor in Psychology.

Ashley Schildwachter

Director of Sports Programs

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Ashley has six years of experience teaching in urban settings with students ages 6-14. Prior to GrowFit, Ashley worked as a special education teacher and consultant in the Bay Area and in New York City. She earned her bachelor’s degree in Human Development and International Studies from Boston College and her Masters in Education from the New York City Teaching Fellows program at Long Island University, Brooklyn. Ashley was a Division I scholarship swimmer at Boston College. As a lifetime athlete and health advocate, she is inspired to work at GrowFit because she believes in the company’s desire to support the well being of youth through physical fitness. She is passionate about providing kids with a healthy and fun outlet for their energy and a space where they can make friends in a team environment.

Clare Barbella

Director of Curriculum

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Clare has been instructing youth fitness classes for over eight years. She earned her Bachelors in Science in Health Education from San Francisco State University, where she developed a passion for health and teaching. In college, she volunteered her time as a Health Educator facilitating health workshops for high school teens. Upon graduation, Clare pursued a career as a physical education teacher. Additionally, Clare has taught basketball and multi-sport after school enrichment classes. She also teaches adult kickboxing classes in her spare time. She continues her professional development through the International Baccalaureate program and has recently finished her Level 1 certification.

Tracy Maxwell

Director of Sales

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Tracy has 20 years experience in the sales field. She specializes in technology, market research and educational sales. Prior to joining the GrowFit team, Tracy’s work served special needs students. She brings a passion for products and services that enable children to grow, develop and become their best. In her spare time, Tracy enjoys gardening, hiking, yoga and spending quality time with her family in the Utah area.

 

Joe Callinan

Co-Founder, Advisor and Director of Finance

Prior to GrowFit, Joe spent 8 years as a Product Leader for a $4 billion dollar technology company.  During that time he was the Product Leader for two new products, QuickBooks Self-Employed and QuickBooks Financing. Joe earned a BS and MBA from Cal Poly, San Luis Obispo and is a Certified Public Accountant.

 

Bernie Castro

Educator and curriculum developer

Bernie has taught physical education for two years with GrowFit. Prior to GrowFit, Bernie coached basketball at Bayside Stem Academy and St.Peter's School in San Francisco. Additionally, he has coached basketball at the middle school and junior high levels and has played basketball and football in high school. He is passionate about coaching and enjoys teaching youth sportsmanship and the concept of teamwork.

 

Daniel Mancilla

Educator and Internal curriculum sales representative

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Daniel has taught Physical Education with GrowFit for eight years. He has worked with students ranging in age from 18 months to 13 years old. Prior to GrowFit Daniel coached pee wee football for five years. Additionally Daniel has played rugby at the semi-pro level for three years. He is very passionate about making physical education fun for everyone. He loves mentoring children and spends his spare time with his daughter.

Devin Harris

Educator

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Devin has over 14 years of experience working with children. Prior to joining GrowFit, Devin was as an Outdoor Education teacher and basketball coach for both elementary and middle school students. In his spare time, he enjoys being outdoors, dancing and playing baseball. Devin is currently pursuing a degree in child development and looks forward to a long career in physical education.

 

Frank Ciardullo

Educator

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Frank has five years of experience teaching physical education in international settings. Prior to GrowFit, Frank was an athletic director, PE teacher and coach. Additionally, he has coached and taught soccer, basketball, badminton and futsal teams at the middle school and high school level. He earned his college diploma in recreation and leisure services from Ontario College, where he followed his passion of athletics and teaching. He was inspired to teach for GrowFit after moving from Malaysia and learning the passion of the organization. He is excited about teaching and coaching and looks forward to inspiring students of all ability levels.

Winson Yip

Educator

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Winson has three years of combined experience teaching and assistant teaching in elementary and middle school program settings with students ages 5 to 13. Prior to GrowFit, Winston was involved in many athletics. Additionally, he  was in the volleyball club at the University of Santa Cruz. He earned his degree in environmental sciences from the University of Santa Cruz, where he found his passion for teaching and working with youth. He was inspired to work for GrowFit after realizing teaching was what he loves to do. He is passionate about being active and working with kids and looks forward to inspiring the students to love being active.
 

Bobby Walton

Educator

Bobby has taught Physical Education for 6 years in a school setting with students ranging from 5 to 13 years old. Prior to GrowFit, Bobby was an AAU level basketball player and power level volleyball player. Additionally, Bobby has past and present experience coaching power level club volleyball, middle school volleyball and basketball, as well as high school basketball. Bobby is a determined athlete who is passionate about working, coaching and mentoring youth. He looks forward to an exciting year teaching P.E.

Yvonne Gragnola

Educator

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Yvonne has many years of experience working with kids in elementary and middle school settings. Yvonne joined the GrowFit team in 2017 and has been a natural fit. Yvonne adds a tremendous amount of compassion to GrowFit. She currently teaches kids from 4 to 16 years old and looks forward to a long career in education.  

 

 

Our Partners

If you are an employee of one of our partners, contact us to find out what perks we have for you.

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Careers

Part-Time Teachers

We’re looking for part-time educators in the Peninsula area that are passionate about teaching; believe in the importance of being physically active and want to have an impact on millions of children. If this sounds like you, join us on our mission to personalize physical education and provide every child with the skills and motivation to live a physically active life.

Responsibilities:

Teaching PE and enrichment classes

This includes preparation, student assessments and communication with parents, teachers and students. In addition to PE, you may be teaching one or more of the following enrichment classes: basketball, flag football, soccer or PE games.

Furthering the curriculum and lesson plans

We believe the secret to a great PE program is a personalized curriculum that allows each student to learn and develop at his or her own pace. As a teacher, you will be responsible for providing feedback and suggestions on ways to enhance the learning experience.

Improving the customer experience

There is nothing more important than the experience of our students, teachers and parents. All teachers are responsible for ensuring their schools have the best possible GrowFit experience.