Katherine Petrusa, M.S. Ed, BCBA
Katherine Petrusa, M.S. Ed, BCBA Director of Clinical Support

Katherine received her Bachelor’s degree in English and Psychology and a Master’s of Science in Education from Northern Illinois University. After becoming a certified teacher in Illinois, Katherine completed the Illinois Experiential Practicum for Autism and worked as an Autism Specialist in public school districts in northwestern Illinois.

While teaching, she became aware of how important different types of interventions, applied in an individualized manner, would be to her students’ success and began pursuing further education and training in Applied Behavior Analysis (ABA). As a Board Certified Behavior Analyst Katherine has received training in various therapeutic models and methodologies including Early Start Denver Model, Acceptance and Commitment Therapy, and Relational Frame Theory.

As a certified teacher and ABA practitioner, she has taught and supported children with many disorders including but not limited to Autism, Genetic Abnormalities (neurodevelopmental disorders), Oppositional Defiant Disorder, Obsessive Compulsive Disorder, Attention Deficit Hyperactivity Disorder (ADHD, ADD), Depression, Anxiety Disorders, and Sensory Processing Disorder. Katherine is a confident professional who collaborates with both school district personnel and families in supporting children with disabilities across all settings. As a member of the Association for Behavior Analysis International (ABAI) she attends national conferences annually and in 2018 presented at the Illinois Association for Behavior Analysis Conference and the Second GAND Gathering & Scientific Conference.

In March of 2019, Katherine relocated to Florida to join the JumpStart Interventions team and has since been serving families in South Florida from North Miami to West Palm Beach as Director of Clinical Support. In this role Katherine provides supervision and guidance to student analysts and Registered Behavior Technicians, provides training for parents, caregivers, and JumpStart Interventions staff, offers curricular insight and adaptations to families who have chosen alternative in-home education plans, and leads collaborative communication and planning with the many other practitioners (OT, PT, SLP, Itinerants, Physicians) company-wide.

Jordan Martinez, MA, BCBA
Jordan Martinez, MA, BCBABoard Certified Behavior Analyst

Jordan earned a Bachelor’s of Science in Psychology from the University of Florida. During her undergraduate years, she also received a minor in Educational Studies and specialized in Positive Psychology while volunteering for organizations such as Young Athletes, Special Olympics, and Best Buddies. It was during this time volunteering that Jordan’s passion for the neurodiversity movement began to blossom. After completing her undergraduate studies, Jordan moved back to South Florida and began working as a Registered Behavior Technician for children with Autism Spectrum Disorder (ASD). Over the years, she gained experience providing therapy in various settings such as home, school, centers, and community-based locations. Jordan has supported students with various needs including cognitive deficits, developmental delays, severe aggression, self-injurious behaviors, attention deficits, use of alternative communication, and other behavioral needs related to ASD and diagnoses within the neurodiversity spectrum. Jordan also has experience working with children with comorbid diagnosis’ and genetic disorders. She has collaborated with a diverse range of families and practitioners and is passionate about designing and implementing the most effective interventions to support client progress across providers.  


Jordan pursued a Master’s degree in Applied Behavior Analysis with a specialization in Autism Spectrum Disorder from Ball State University and became a Board Certified Behavior Analyst. As an integral part of the Jumpstart Interventions family, she is driven by her love for helping children connect with their families, friends, and communities and takes pride in providing the best quality care throughout the entire process.

Kristin Nunez, BA, RBT
Kristin Nunez, BA, RBTStudent Analyst
Registered Behavior Technician

A strong advocate for understanding the human mind and behaviors that affect individuals and families, Kristin spent four years at Florida International University studying psychology. During this time, she volunteered with non-profit organizations on a local, state, and international level. In the last two years of her studies she began interning as a research assistant with FIUs Mental Health Interventions and Technology (MINT) program and became a counselor assisting in therapy services for children with mental health disorders including anxiety, selective mutism, and obsessive compulsive disorder. This work allowed Kristin to become invested in learning from a career that fulfilled qualities of good service, respect for others, and which allowed for advocation for families and children. This is when she discovered the field of Applied Behavior Analysis (ABA).

After becoming a registered behavior therapist (RBT) and providing services to children and families for two years, Kristin was committed to understanding ABA and learning ways to apply herself further within the field. Kristin began her coursework to certify as a Board Certified assistant Behavior Analyst (BCaBA) and became a part of the Jumpstart Interventions family. In recognizing the importance of advocating for children with Autism Spectrum Disorder and other learning disabilities, Kristin is ready to sit for her BCaBA exam while she continues her graduate coursework at Mary Baldwin University to become a Board Certified Behavior Analyst.


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