Jonathan Kalonji is a career counselor at Skill BuilderS, having started in April 2024. Previously, Jonathan held roles as a full-stack developer at Signpost from January 2022 to December 2023 and as a junior full stack web developer at BeCode.org between April and December 2021, gaining proficiency in technologies such as HTML, CSS, Javascript, React, and PHP. Earlier experience includes serving as a senior sales account executive for the European Commission at Bechtle from October 2018 to December 2019, and as a sales account executive for the European Commission at COMPAREX from October 2016 to October 2018, where responsibilities included client management and conflict resolution. Additionally, Jonathan worked as a service dispatcher at Belcar and as a merchandiser at Mars Belgium in 2014. Jonathan holds an ASO degree in Humane Wetenschappen from Sint-Godelieve.