As a penetration tester, I conduct security assessments and penetration tests for various clients, identifying and addressing potential security weaknesses in their web and mobile applications. I use ethical hacking techniques and tools to simulate real-world attacks and provide recommendations and solutions to improve their cybersecurity defences. I have successfully completed several projects, including a large contract with a financial institution, where I detected and exploited several critical vulnerabilities that could have compromised their data and systems.I have gained recognition from reputable companies like Google, Microsoft, AT&T, Blackberry, and Dell for reporting and resolving security issues in their products and services. These acknowledgements demonstrate my skills and professionalism in the field, as well as my passion and curiosity for learning new things and staying updated with the latest trends and developments in cybersecurity. I hold a Certified Ethical Hacker (CEH) certification, which validates my knowledge and proficiency in ethical hacking, as well as an Offensive Security Certified Professional (OSCP) certification, showcasing my advanced penetration testing and exploit development skills. Additionally, I possess a Bachelor of Science in Software Engineering from American International University-Bangladesh, which provides me with a solid foundation in software development and security. I am a well-rounded penetration tester and security researcher, leveraging my expertise in web and mobile application security and vulnerability assessment to contribute to the security community and assist organizations in enhancing their cybersecurity defences.