¡Hola!

My name is Sandra Moreno, and I am a passionate teacher, educator, and coach with a background in language, literacy, movement, and working with children.

As a native Spanish speaker who learned English as a second language, I have a personal understanding of the language-learning journey. This experience helps me deeply connect with students who are learning a new language.

With over 15 years of teaching experience since 2010, I have had the joy of teaching pre-k, elementary, and university students in Colombia and in the U.S. My teaching approach combines movement, music, Colombian culture, and language to make learning Spanish fun, active, and memorable.

My experience includes:

• Spanish Teacher for young learners
• Literacy Tutor for Pre-K through 2nd grade in reading and writing
• Dance & Latin Dance Teacher, Certified Zumba® Instructor (ZIN), and AcroDance Leader
• 20 years of cheerleading coaching experience in Colombia and 2 years in the USA, including six consecutive years competing at The Cheerleading Worlds in Orlando, Florida.

Education & Certifications:
Bachelor of Education in Elementary Education from Universidad Libre de Colombia (2011), Folklore Dance Certification (Colombia, 2018), ZIN – Zumba Instructor specializing in Brazilian rhythms, dance, and house, plus professional training in food allergies, classroom safety, outdoor classroom design, and strategies for working with children on the autism spectrum.

I am so excited to welcome your child to class!

¡Bienvenidos!

Matt Mulconrey was born and raised in Austin, Texas. Mr. Mulconrey was a student at Paragon Prep from 1999-2002 where he never met a sport he didn’t love. He went on to Anderson High School, and then graduated from Texas State University with a Bachelor’s of Business Administration in management.​

In 2015, he rejoined his Paragon family. Since then, Mr. Mulconrey has worked with all ages Pre-K through 8th grade at the school. He has coached sports for the school, but currently Mr. Mulconrey teaches social studies to various grades and coaches football & basketball.

Matt Mulconrey joined the Paragon Team in 2015.

Mr. Nelson is a “hometown boy” having attended Doss Elementary School, Murchison Middle School, and Anderson High School. He went on to earn his BS in Nutritional Science for the University of Texas at Austin.

Mr. Nelson began his science teaching career at The Outdoor School & Camp Champions in 2013. Since then he has taught and tutored science and other subjects in a variety of venues, including: The Austin Nature & Science Center, YMCA Camp Orkila, Boutique Educational Services, and Travis High School – where he taught Chemistry and Aquatic Science for two years. For the past three years, he has been teaching 8th grade Language Arts at Lively Middle School.

Mr. Nelson has been part of the Paragon team since 2022.

Juliana Pettiette has a diverse educational background in Austin and experience as an Assistant Director. Juliana is ready to embrace school events, form connections with Paragon families, and contribute to the cherished traditions of Paragon.

Isabella Pietroboni serves as the Director of Enrollment at Paragon Prep, supporting families throughout the admissions and enrollment process across both the Preschool and Upper Campus.

Ms. Pietroboni graduated from Boston University in 2012 before beginning her career in education through Teach For America. She spent six years teaching middle school mathematics, where she developed a passion for helping students build confidence, discover their strengths, and reach their potential.

After leaving the classroom, Ms. Pietroboni transitioned into higher education, where she led an enrollment team for a nursing school. Her experience in both teaching and enrollment ultimately brought her back to early childhood through middle school education, combining her love of working with families with her passion for creating meaningful educational opportunities for students.

Ms. Pietroboni joined the Paragon team in 2025. She loves getting to know prospective families, learning what matters most to them in a school, and helping them envision their child’s journey from their earliest years at Paragon Preschool through eighth grade.

Outside of Paragon, Ms. Pietroboni enjoys traveling, staying active, learning Italian, and spending time with her Boston Terrier, Bean.

Lincey has taught Mandarin in a variety of settings, from private tutoring to a Chinese immersion program in Singapore and an after-school learning center in Texas. Besides her teaching diploma, Lincey holds a master’s degree from Johns Hopkins University (Nanjing campus) and has a background in international relations. She is passionate about making language learning fun and meaningful. Outside the classroom, she loves traveling to new countries, spending time with her kids, and chasing after their playful dog, Milo.

Joey was born in Albuquerque, NM and was raised in El Paso, TX. After graduating from high school he worked while going to college part-time; eventually going to the University of Colorado at Colorado Springs and transferring to and graduating from the University of Texas at Dallas, majoring in Psychology with in minor in Communication. Joey then moved to Austin, TX in 2007, continuing to work and eventually received his masters degree in Educational Psychology from the University of Texas in Austin in 2013.

​Joey has been working with children for more than 20 years, 14 of them within the educational system. He has two young children of his own.

​“I’m trying to make people become the best versions of themselves possible, all the while appreciating the struggle that it takes. Life is not measured on where one ends up, but the obstacles one had to overcome to get there.”

​Mr. Joey joined the Paragon Team in 2015.

Valor Program

William Smith is a Texas native, born in Austin and raised in Liberty Hill, just outside of the city. He attended the University of Arkansas in Fayetteville, where he earned his Bachelor of Science degree in Software Engineering and Mathematics.

After graduating, William worked as a software engineer for some years. While he enjoyed the challenges of the field, he discovered a growing passion for working with people and making a meaningful difference in the lives of others. This led him to make a career transition into education and pursue his passion for teaching mathematics.

William began his teaching career at the junior high level, where he spent time helping students build their mathematical skills and confidence. He is excited to continue growing as an educator and to bring his background in mathematics, problem-solving, and technology to the classroom.

William is thrilled to join the Paragon community this year as the 5th Grade Math teacher. He looks forward to getting to know his students, fostering a love of mathematics, and helping them develop the skills and confidence they need to succeed.

Ms. Sreekantham joins Paragon with 8 years of science teaching and curriculum development experience. She earned her BS degree in Cell, Molecular, and Developmental Biology from the University of California, and an MS in Biotechnology from Penn State.

A resident of Austin since 2003, she worked as a DNA analyst for a decade before shifting gears to teaching. Her passion for excellent education extends to UT – mentoring college students in the UTeach program – and also extends to her service on the Board of Directors at Williams Community School.

Rama Sreekantham joined the Paragon Team in 2020.

Shaun Stubblefield is a passionate educator who brings over five years of teaching in history, literature, and music to the classroom. He is deeply committed to creating engaging, student-centered learning environments that spark curiosity and critical thinking. Mr. Stubblefield specializes in project-based and mastery-based learning, helping students connect academic subjects to real-world experiences.

Mr. Stubblefield holds a Master’s in Secondary Education from Regis University, a Master of Music in Music History from Northern Arizona University, and a Postgraduate Certificate in English Church Music from the University of York in the U.K. His academic background reflects his passion for both the humanities and the arts, and he brings this depth of knowledge into his interdisciplinary teaching. He has taught in a wide range of educational settings—including gifted and talented programs and IB-aligned schools—where he has developed original curricula in history, literature, drama, and music.

When he’s not in the classroom, Mr. Stubblefield enjoys independent research, playing video games, and spending time with his partner and their energetic three-year-old dog, Gianna.