Mohammad Sheikh

Mohammad Sheikh is a skilled cybersecurity professional with experience in penetration testing and vulnerability assessment. Currently serving as a Penetration Tester at Upwork since November 2021, Mohammad specializes in vulnerability assessment and penetration testing (VAPT) along with ISO 27001 compliance. Previously, as a Cyber Security Engineer at Tkxel from November 2022 to February 2025, Mohammad conducted comprehensive penetration tests and vulnerability assessments on web applications, working with internal teams to address security weaknesses. Mohammad’s career began as a Cyber Security intern at VaporVM in August 2021, where skills in Kali Linux and networking were developed.