Our MissionSee how and why we’re introducing language learning excellence across the US.

Going beyond language education

LLN is committed to more than just language education. LLN is grounded in holistic educational practices that prioritize developmentally and age-appropriate instruction; social-emotional learning; diversity, equity, and inclusion; and sociocultural competence.

Language education isn’t just another grade on the report card, but a way to understand different cultures, communicate across borders, and ultimately unlock the world. But not every student gets this opportunity. That’s where LLN comes in.

Our Mission

To meet the needs of schools and students across the United States without language learning opportunities. We aim to do this by providing you access to real teachers, a flexible curriculum, quality materials, and a range of resources.

A curriculum committed to excellence

We don’t believe in halfway. That’s why our teachers are experienced, our curriculum is innovative, and our technology is cutting-edge. LLN teachers meet state and national standards and, as lifelong learners, regularly complete professional development.

Meet the Team

Learn more about:
Sean Kreyling's picture
Sean KreylingFounder & CEOHe/Him/Él

Sean has over a decade of experience in preK-12 language education. Sean started his work in the classroom as a Spanish teacher for early childhood students in a Reggio-inspired school. He then went on to teach students ranging from elementary to high school. In addition to his work in the classroom, Sean also facilitates professional development for teachers across the country in language pedagogy; educational technology; social-emotional learning; and diversity, equity, and inclusion. Sean holds a Bachelor of Arts in Organizational Leadership from The Pennsylvania State University and a Master of Arts in Educational Leadership and the Reggio Emilia Approach from Antioch University.

Cristina Bricoli's picture
Cristina BricoliManaging DirectorShe/Her

Cristina oversees process improvement efforts and is key to developing the organizational culture at LLN. She has nearly a decade of experience in business and people operations. She started her career at Deloitte, where she worked as a consultant providing human capital strategies for organizational and tech transformations and then in the Office of the US CEO for Deloitte, where she supported firm-wide programming. Prior to joining LLN, Cristina was a Talent Advisor at JP Morgan, where she led initiatives focused on leadership development, performance management, and DEI. Cristina holds a Bachelor of Arts in Organizational Sciences from The George Washington University.

Sierra Battaglia's picture
Sierra BattagliaDirector of OperationsShe/Her

Sierra oversees LLN’s operational processes to ensure everything from contracts to personnel management runs smoothly. She started her career in marketing and business development, but soon realized education was her true calling, pursuing an education at a small Reggio-inspired school in NJ. Years later, Sierra joined LLN, where she combined marketing and business development with her passion for education. Sierra holds a Bachelor of Arts in Psychology and Business Administration from Montclair State University.

Adam Shepherd's picture
Adam ShepherdDirector of Teacher Training & DevelopmentHe/Him

Adam oversees the professional development of LLN teachers, using his expertise in world language and teaching to create impactful training. He has worked in public and private middle schools, high schools, and universities, teaching French, Arabic, German, and English and mathematics test prep. Adam holds an impressive language resume with a Bachelor of Arts in German from Ursinus College; a Master of Arts in French Education from Southern Oregon University; a Master of Arts in German Language and Pedagogy from the University of Pittsburgh; and K-12 certifications in French and German. Adam also completed Middlebury’s Arabic intensive immersion program.

Maria Lewis's picture
Maria LewisDirector of Talent AcquisitionShe/Her

Maria is in charge of recruiting exceptional teachers for LLN partner schools, based on schools’ unique needs. She has worked in public and private schools, both teaching and leading fundraising. In addition to her classroom experience, Maria worked with children as a co-leader for the Boy Scouts. She also worked in sales and recruiting before joining LLN. Maria holds a Bachelor of Science in Marketing from Rutgers University.

Julissa Estrada's picture
Julissa EstradaDirector of Partnership DevelopmentShe/Her

Julissa works with schools to identify their unique needs and develop a partnership that provides them with exceptional educational services from LLN. She started her career in education over 10 years ago as a teacher in charter schools. In addition to her classroom experience, Julissa has worked with children in recreational sports. She also is an involved member of her community’s educational system as a board member of the Special Education Parental Advisory Committee. Julissa holds a Bachelor of Arts in Education from the University of Phoenix. 

Mariana Dussan's picture
Mariana DussanDirector of Educational TechnologyShe/Her

Mariana ensures all LLN teachers and staff have the technology setup and support necessary to be successful. She has worked in the classroom as an ELL/ESL teacher and a Spanish and humanities teacher in the US and in Aruba. Before teaching, Mariana worked as an independent content producer, ghostwriter, and entertainment producer for NBC Latino. Mariana holds a Bachelor of Arts in Journalism and Media Studies from Rutgers University and a Master of Arts in Instructional Design and Technology from Seton Hall University.

Sandra López Lorente's picture
Sandra López LorenteDirector of Curriculum DevelopmentShe/Her

Sandra uses her years of world language teaching experience to lead the development of curriculum that drives student learning and is user-friendly for LLN teachers. She has over 20 years of experience in education. Sandra started her teaching career as a TA at the University of Akron before moving into elementary, middle school, and high school education. She has taught in public and Montessori schools and also has experience in developing world language curriculum. Additionally, she has extensive experience creating meaningful learning opportunities for students that promote real-life language communication. Sandra holds a Bachelor of Business Administration; a Master of Arts in Spanish and Latin American Studies; a Master of Arts in Secondary Education; and a K-12 certification in Spanish.

Mirella CongiuDirector of Teacher & Partner SuccessShe/Her

Mirella manages relationships with LLN partner schools and oversees all LLN teachers, ensuring that they receive the support that they need. She has over 10 years of experience in assessment administration and teaching online and in-person preschool-12 Spanish and Italian. Before starting her career in education, Mirella managed administrative and sales teams domestically and internationally. Mirella holds a Bachelor of Arts in International Business from Pace University and a Master of Arts in Spanish from the University of North Carolina.