2015 - 2019
chemical production engineerSmall and medium-sized enterprise - Incheon, 韓國
2021 - 2022
junior project engineerSmall and medium-sized enterprise - Augsburg, 德國
2023 - 2024
chemical and project engineerSmall and medium-sized enterprise - Schwedt/Oder, 德國
2024 - 2025
process technicianSmall and medium-sized enterprise - Dresden, 德國