PORTFOLIO_2026

CYBERSECURITYENGINEERPaweł_Mierzwa

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Full-Stack Developer & Security Specialist

I write code that works, then figure out how to break it.
Developer by passion. Defender by profession.

SYS.STATUS: ONLINE|SEC.LEVEL: O5
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01

ABOUT

{IMG}
PROFILE.JPG
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ENGINEER. ANALYST. DEVELOPER.

01 Cybersecurity engineer and full-stack developer with a methodical approach to building secure, high-performance systems.

02 2+ years of professional experience in defending networks, responding to incidents, and analyzing threats. Automation enthusiast passionate about streamlining security operations.

03 8+ years of development across game engines, mobile platforms, scripting languages and web technologies.

08+YEARS_DEV
02+YEARS_SEC
50+PROJECTS
02

PROJECTS

EMAIL THREAT DETECTION PLATFORM

Real-time email threat detection system for everyday users and businesses. Features include phishing detection, spam filtering, and threat intelligence integration.

STACK:
[REDACTED]

E2E ENCRYPTED MESSANGER

A secure messaging application with end-to-end encryption, based on user-generated passphrases to ensure privacy and confidentiality, as long as users keep the phrases secure.

STACK:
NODE.JSNUXT.JSWEBSOCKETSCRYPTOGRAPHY

WINDOWS QUARANTINE EXTRACTION DECODER

Script for decoding and rebuilding files from Windows Defender's Quarantine after they are downloaded through EDR remediation tools.

STACK:
PYTHONFORENSICSMALWARE ANALYSIS

COMPANY WEBSITE

Corporate website for my tech startup specializing in AI based Managed Detection and Response. Showcases services, team, and contact information with modern design.

STACK:
NUXT.JSTAILWIND CSSTHREE.JSGSAP
03

SKILLS

01

CYBERSECURITY

Incident Response
CORE
Malware Analysis
CORE
Threat Analysis
CORE
SIEM Tools
Penetration Testing
Network Security
Digital Forensics
02

DEVELOPMENT

TypeScript
CORE
C++
CORE
Vue / Nuxt
Java
Kotlin
Unreal Engine
Android SDK
03

TOOLS & INFRASTRUCTURE

Git
Docker
Linux
CI/CD Pipelines
PostgreSQL
REST APIs
Cloud Platforms
//CORE_COMPETENCIES

SECURITY_FIRST

Security as the foundation of all development

INCIDENT_READY

Swift response when threats emerge

FULL_SOC

Extensive SOC experience through L1 to L3

FULL_STACK

Versatile across frontend and backend

system_info.sh

$ cat skills.json | grep "expertise"

{

  "security": ["incident_response", "malware_analysis", "threat_hunting"],

  "development": ["web", "game_dev", "mobile"],

  "languages": ["typescript", "c++", "java", "kotlin"]

}

$ _

04

CONTACT

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LET'S_CONNECT

Open for collaborations, security consultations, and interesting projects. Drop a message and let's build something secure together.

EMAILcontact@cnsh.dev
LOCATIONGdańsk, Poland
[MESSAGE_FORM]
© 2026 ALL_RIGHTS_RESERVED
BUILT_WITHNUXT.JS + THREE.JS
v2.0.26-01