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Archana S. is a Penetration Tester at OnSecurity since August 2022, specializing in web application and API pentesting, infrastructure pentesting, cloud audits, O365 configuration reviews, social engineering, and OSINT. Prior to this role, Archana served as a Junior Penetration Tester at Merimetso and has an extensive background in medicine as a Doctor specializing in Paediatrics and Paediatric Oncology with the NHS from 2001 to 2021. Archana also held a position as a Clinical Research Fellow in Paediatric Oncology at Birmingham Children’s Hospital and the University of Birmingham, focusing on rare paediatric brain tumours. Archana holds an MBBS from Imperial College London and a PhD in Cancer Sciences from the University of Birmingham, complemented by training from a Firebrand training bootcamp.