As one of the world’s preeminent authorities on Infrastructure Security , Open Source Intelligence Gathering , Ethical hacking and cybersecurity, Hasan has experience in Linux System Administration, Cyber Security and Red Team Penetration testing , where He has advised many companies and persons around the world, assuring security on big projects. Now provide consultation on creating and hardening highly secured websites for financial institutions , Banks and agencies .

A specialist in Cybersecurity and Data Protection , Python Programming , WordPress Development , Enthusiastic in blockchain, smart contract , NFT, Cryptocurrency , Database Design, Architecture Design, Performance Optimization, Caching and, Design, Hasan Mahmud has come across several complex systems and projects in his 12+ years of IT experience in several social enterprises, real estate industry and education industry.