I am a Master of Engineering in Information Systems Security candidate at Concordia University in Montreal, Canada, with a Bachelor of Science in Computer Science and Engineering from North South University in Dhaka, Bangladesh.

As a software engineer and security and system architect specialist at HiLinkz Ltd. in Dhaka, Bangladesh, I have developed a number of mobile apps for clients on both Android and iOS platforms using the cross-platform framework Flutter. I also performed security checks on client websites using various penetration testing tools and suggested changes to make the system more secure. Additionally, I have made some existing systems SQL injection proof, tested software and APIs for vulnerabilities through penetration testing, and integrated secure payment systems using SSL. Furthermore, I developed desktop apps using '.net.'

During my internship as a software engineer at Ryogas in Dhaka, Bangladesh, I developed a common platform and ERP for gas station owners to maintain their inventories. I also worked on their performance appraisal system to enhance its functionality and features.

My programming skills include C, C++, Java, C#, Dart, PHP, Python, JavaScript, 8086 Assembly, Bash Script, Visual Basic, and Prolog. I have experience with various hardware, including Arduino development boards (Due, Uno, Nano), ESP32/8266, ATTINY85, various sensors, PWM controllers, and RFID modules. I am proficient in Kali Linux, Windows, and Mac OS operating systems, and I have experience using penetration testing tools such as Skipfish, Burp Suit, mitmproxy Nmap, Ngrok, Metasploit (partially), Netcat, BlackEye, Setoolkit, frida and apktool. Additionally, I have expertise in using frameworks and technologies such as Flutter, .NET Framework, Laravel, Firebase, and Cisco Packet Tracer.

I am well-versed in project management using Trello, Slack, GitHub, and SVN. I hold the following certifications: Learn Ethical Hacking from Scratch, issued by Udemy in August 2021, and Workshop on Network Security, issued by BUGSBD in January 2019.

I have worked on several projects, few of them are like NSU Smart-print zone (C#, PHP, Java, MySQL), which I designed and developed to handle client requests for centralized print zones that are RFID-compatible. This system can transform ordinary printers into smart RFID-enabled printers and provides cloud print functionality. Currently, North South University is adopting this project to their ecosystem, and the process is ongoing. My_ducky (C++, Arduino) is another project that I worked on, which involves my custom USB rubber ducky. Using Arduino-based microcontrollers like ESP8086, 8266, and ATTINY85, it targets the Windows platform. NSU_e-Wallet (Java, PHP, MySQL, C++, Arduino) is an LF RFID-based payment system with a customizable protocol that can work with real-life banking systems (Bangladeshi). It is the best match for educational institutes and organizations, and it will be attached to the ecosystem and act accordingly. Encryption_project (Java) is an encryption and decryption (symmetric) algorithm that I designed, which generates a different ciphertext for the same plain text every time. Cracker (Java, PHP) is a fun virus that can send users (victims) all directory information to me (my server). I created it for fun and experience. 128bit AES (Java) involves the implementation of 128-bit AES algorithm using Java and can encrypt images as well. IoT-Water_level (C++, ESP32, ESP8266) is a device that shows the water level in the reserve and filtration system according to my old house's water tank design. It keeps the tank full with filtered water without human interaction and wasting water. 

I am passionate about utilizing my skills and experience to make the world a safer place..