My name is Damian Pajszczyk, and I am a Penetration Tester at Logicaltrust. I am passionate about cybersecurity and approach my learning journey with dedication and determination.

My certifications:

• OSCP (Offensive Security Certified Practicioner)
• OSWE (Offensive Security Web Expert)
• BSCP (Burp Suite Certified Practicioner)
• PentesterLab Authentication/Authorization Badge
• PentesterLab Orange Badge

My experience:

- Over 150 vulnerable machines on the OSCP course (Proving Grounds + 2023 and previous course)
- I performed security code review on over 10 real-world applications (OSWE course)
- Pro Hacker at HackTheBox (over 173 boxes and33 challenges)
- Over 115 exercises on PentesterLab and earned two badges
- I finished all Apprentice and Practicioner level PortSwigger labs
- I'm linux user since 2005 (gentoo, debian, ubuntu distros)

My biggest programming projects was:

- Android application for locating the WIFI devices

- Windows Desktop application that connects with the ECG devices, present the data and calculate the pulse

- NET core aircraft maintenance database in MVC.

- Windows Desktop Application "Baza Niesprawności" serving as database of aircrafts malfunctions history

- Many python exploits for HackTheBox/CTF machines

What i know and what are my top skills:
- Knowledge of OWASP top 10
- Detecting and Exploitation of Web Application vulnerabilities including:

• Client-Side vulnerabilities: XSS, CSRF, Clickjacking, CORS misconfigurations
• Server-Side vulnerabilities: Path Traversal, LFI, RFI, Command Injection, RCE, Race Condititions, SSRF, XXE, SQL/NoSQL Injection, File Upload vulnerabilities, Broken Authentication, Business
• Business Logic Vulnerabilities.
• Cryptography - Hash length extension, Forbidden Attack, creating custom wordlists, performing dictionary/bruteforce attacks

- Creating Web Application exploits POC.

- Perform active/passive reconaissance.

- Source Code Review.

- Active Directory Enumeration and Exploitation.

- Linux, Windows systems Enumeration and Exploitation.

At the beginning of 2022, I decided to pursue a career as a Penetration Tester. The vast range of skills and knowledge required to work as an Offensive Cybersecurity Professional became a huge motivator for me.

Previously, I worked as the Manager of the Avionics Service Team, where I developed strong leadership and technical problem-solving skills. While this role helped me grow professionally, it wasn’t challenging enough, leaving me unsatisfied.

I transitioned into cybersecurity and started as a Junior Penetration Tester at Elementrica, gaining hands-on experience in offensive security. Currently, I work as a Penetration Tester at Logicaltrust, where I continue to develop my skills and contribute to securing systems against real-world threats.