Dawid

Junior Cybersecurity Specialist | Web Application Security

Handle

@dawid-uge9

Role

Senior Web Developer

Company

void netRun()

Location

Kraków, Poland

Languages

Polish, English

Open to

junior-level roles in penetration testing, application security, or cybersecurity operations.

About

Aspiring Cybersecurity Specialist with 5+ years of commercial web development experience and 60+ documented security lab writeups covering SQL Injection, XSS, SSRF, IDOR, JWT, XXE, and CSRF. Completed TryHackMe Pre Security path and currently progressing through Cyber Security 101. Practical lab experience with Burp Suite, Nmap, Wireshark, SQLMap, and Metasploit in lab environments. Development background provides deep understanding of how web applications are built and therefore how to test and secure them. Seeking junior-level roles in penetration testing, application security, or cybersecurity operations

Experience

• Senior Web Developer at void netRun()
  Mar 2024 to Aug 2026
  Identified and resolved 50+ production vulnerabilities across PHP and JavaScript applications, including SQL Injection, XSS, IDOR, and CSRF. Developed and maintained 30+ web applications and client projects using WordPress, WooCommerce, PHP, JavaScript, HTML, and CSS.
• Frontend Developer at DotLineCode
  Aug 2022 to Feb 2024
  Developed 20+ custom WordPress themes and plugins and WooCommerce stores. Integrated web applications with REST APIs and external systems, and built advanced user interfaces and animations using JavaScript, GSAP, and Three.js.
• Frontend Developer at Funktional
  Feb 2021 to Jul 2022
  Developed custom WordPress and WooCommerce solutions and responsive web interfaces for 10+ clients. Maintained existing websites, diagnosed technical issues, optimized application performance, and worked in an Agile/Scrum environment.
• Junior Frontend Developer at Millenium Studio
  Sep 2020 to Jan 2021
  Modified and developed WordPress themes and implemented dynamic components using ACF for 5+ client projects. Built simple online stores using WooCommerce and PrestaShop, and maintained and optimized client websites.

Education

• Wyższa Szkoła Biznesu - National Louis University
  Bachelor of Engineering, Computer Science
  2023 to 2026

Skills

• Application Security
• Web Application Security
• Penetration Testing
• Vulnerability Assessment
• Secure Code Review
• OWASP Top 10
• Burp Suite
• Nmap
• Wireshark
• SQLMap
• Metasploit
• PHP

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