Chaima Ennar is a Big Data Engineer with extensive experience in data-related roles across various companies. Currently working at Carrefour since November 2023 and previously at Zenika from March 2019, Chaima has also served as a Big Data Developer at Enedis from December 2021 to July 2023 and as a Developer at oppido. Notable technical skills include Java, PostgreSQL, Prometheus, Grafana, Jmeter, and AWS. Chaima's earlier roles include development internships at Zenika, SPIKE-X, and LINAGORA, with a focus on web applications, data visualization, and administrative software solutions. Education includes a degree in Distributed Systems Engineering from the National Engineering School of Sousse and studies at the Preparatory Institute for Engineering Studies of Tunis.