Junior Security Engineer focused on Web Security, Network Security, and Infrastructure Security.

Infrastructure-oriented security specialist with hands-on experience in Linux, networking, server environments, and web application analysis.

• penetration testing
• API security
• vulnerability assessment
• infrastructure security
• Red Team fundamentals

• Web Security
• Network Security
• API Security
• Linux & Infrastructure
• Penetration Testing
• Red Team Learning Path

• Nmap
• Burp Suite
• OWASP ZAP
• Nuclei
• dirsearch / ffuf
• Amass / Subfinder
• Kali Linux

• Linux / Ubuntu Server
• Nginx, SSL/TLS, DNS
• TCP/IP, HTTP/HTTPS, VLAN
• VPN, VLESS, Xray
• Docker, Docker Compose
• PostgreSQL basics

• Python
• Bash
• Git / GitHub
• Log analysis
• CLI tools
• CSV / JSON / Markdown

Security-oriented Nginx log analysis tool.

• Parses .log and .gz files
• Detects suspicious IPs, paths, User-Agents and scan-like patterns
• Exports reports to JSON, CSV and Markdown
• Supports live monitoring mode

Repository: https://github.com/BUSH-xanta/nginx-access-log-parser

Tool for extracting public contact data from websites.

• Extracts emails, Russian phone numbers and Telegram contacts
• Crawls main and contact-like pages
• Supports HTTPS to HTTP fallback
• Deduplicates results and exports to CSV

Repository: https://github.com/BUSH-xanta/site-contact-parser

Hands-on labs for web and API security.

Status: in progress

Planned topics:

• OWASP Top 10
• IDOR
• Broken Access Control
• API authentication flaws
• Burp Suite testing
• Vulnerability reports

• Identified a business logic vulnerability in a payment flow of a small business website
• Performed MITM labs in an isolated virtual environment
• Worked with server infrastructure and internal technical processes at Selectel
• Built and maintained small infrastructure projects on Ubuntu Server with Nginx, SSL/TLS and Docker

• Web Pentesting
• API Security
• Advanced Linux
• PostgreSQL
• Vulnerability Research
• Red Team fundamentals

• Telegram: https://t.me/xantaa
• Email: alekceu086@gmail.com

Grow as an Information Security specialist focused on penetration testing and Red Team.

Long-term focus:

• adversary emulation
• infrastructure security assessment
• vulnerability research
• practical attack-defense understanding