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Performance coach with a background in functional bodybuilding, hybrid training, and nutritional coaching. His approach blends strength, hypertrophy, and conditioning to help clients improve how they look, move, and perform. Jon is passionate about structured training, discipline, and creating programs that are challenging, effective, and sustainable.
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I grew up playing sports, and I loved the training and conditioning aspect of it. I knew it was something I wanted to do after I finished my sports career. After college, I became a certified fitness trainer through the American Council of Exercise. After a few years training at a national gym, I wanted to create my own fitness program, and so JustFit began!
Fitness has been a lifelong foundation for Thomas, with roots in competitive sports and a strong background in powerlifting, where he rose to president of the Texas Tech Powerlifting Club and qualified for national competition early on. His experience expanded into bodybuilding and CrossFit, ultimately leading him to pursue personal training full-time after a successful career in automotive sales. Since beginning his training career in 2018, he has helped numerous clients achieve lasting results through a balanced approach that combines exercise, nutrition, and education. Now an independent trainer in Austin, he offers flexible, personalized coaching while continuing to pursue his own goals in competitive bodybuilding, driven by a passion for constant growth both for himself and his clients.
Marie Belle Pérez Rivera, Ph.D., CPT, E-RYT 500 is a powerhouse of a teacher, athlete, artist, writer, community leader, and experience maker. She is a globally recognized yoga teacher, expert in Somatic and Embodiment Practices for Reducing Stress, Developing Resilience, and Healing Trauma, and a Latina health coach, Personal Trainer, and small business owner.
Born and raised in Houston, TX, I grew up active in sports and later discovered my passion for fitness while pursuing my education—a Bachelor’s in Psychology from Texas State and a Master’s in Kinesiology from A&M–Kingsville. My own fitness journey began in 2014, evolving from trial-and-error workouts to structured programming, proper nutrition, and eventually competing in bodybuilding, where I earned multiple top finishes. Now a Certified Exercise Physiologist and Nutrition Coach, I specialize in helping individuals of all backgrounds—from general fitness to those with health risks—transform their health, build sustainable habits, and reach their goals with a balanced approach.
I am a NASM certified Personal Trainer. I am highly experienced in designing programs that are safe, effective, and tailored to your individual needs. I stay up-to-date with the latest research and trends in the fitness industry to ensure that my clients receive the best possible guidance and support.
I specialize in helping busy professionals reclaim their health and confidence. My approach combines evidence-based training, personalized nutrition, and mindset coaching so you can achieve meaningful results without unnecessary complexity. Whether your goal is fat loss, muscle growth, or overall wellness, I focus on strategies that fit your lifestyle and support long-term success.