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Leadership Team

Abigail Cossettini
Deputy Head of Primary School

Abigail Cossettini is a university trained teacher with a specialty in Gifted Education. She was a class teacher in public and bilingual schools in the US for 7 years before joining the Josef-Schwarz School in 2012. At Josef-Schwarz School, she has taught in the Reception, 1st grade and 2nd grade, as well as being a part of the school Leadership Team and working as the Talent Coach. 

Kevin Helsel
Deputy Head of Primary School (Josef-Schwarz-Schule Heilbronn)

Kevin Helsel is a trained primary and middle school teacher. He has a Master’s Degree in STEM Education (MINT) and has been working as a primary and middle school teacher for several years in schools in the U.S. and in Germany.  He joined the team at Josef-Schwarz-Schule in 2016 and has taught grades 1, 3, and 4. Currently he is working in the leadership team and is teaching in grade 1 at the JSS Campus Heilbronn. "I love working with kids and enjoy supporting the students and their families in having a positive experience in the primary school."

Daniela Hennig
Reception Coordinator

Daniela is a trained Kindergarten teacher and studied Early Childhood Education at the Ludwigsburg Teachers’s College.  After finishing her Bachelor’s degree she worked in Kindergartens in the Heilbronn area.  In September 2012 Daniela started working for Josef-Schwarz-School. She began as a Reception teacher and later she took over as the Co-ordinator of the Reception programme.

Lena Dudenhöffer
Temporary Head of Primary School

Lena Dudenhöffer completed her primary school education studies at the University of Landau in 2014 with a focus on German and Protestant theology and has been working as a teacher since then. Since moving to Heilbronn in 2017, Lena has been working in our team at Josef-Schwarz-Schule as a specialist teacher of German and in the area of cooperation with the day care centres run by Phorms Education. In school year 2018/19, she was a member of the leadership team responsible for the team of subject teachers and the German department at JSS. Since school year 2020/21 she has taken over the temporary position as Head of Primary School.

Lisa Schüfer
Head of Primary School

Lisa Schüfer studied German, Math and Catholic Religion in Ludwigsburg at the University of Education. As a native to Neckarsulm, she enriches the Josef-Schwarz-School Team since 2013. In 2015 she became a member of the Leadership Team and is responsible for all subject teachers and the German department. Beginning in January of 2017 she initially took over the temporary position as Head of the Primary School and is now Head of Primary School.

Lisa Schüfer is currently on parental leave.

Karin Berner
Coordinator for After School

Karin Berner completed training as an educator and movement therapist. After many years of running an open children and youth ward, she joined the JSS team in 2015. Since 2019, Karin has been the After School Coordinator, managing the entire area of afternoon and holiday care and coordinating the team of assistant teachers.


Susanne Keller
Coordinator for After School

Susanne Keller completed her degree in general and special education at the University of Würzburg in 2009. Her passion has always been the area of childcare in all-day schools. In 2013 she came to the Lindenparkschule Heilbronn via various stations. She joined the JSS team in 2015, starting as Assistant Teacher. Since 2016, Susanne has been in charge of the entire after-school and holiday programme as extra curricular coordinator. 

Susanne Keller is currently on parental leave.