Profile

About Me

KB

Karol Budzyn

Cryptography Researcher · OT/ICS Security Engineer · Warsaw, PL

Student at Warsaw University of Technology (ARICS — Automation, Robotics & Industrial Computer Science), with a research focus on Post-Quantum Cryptography (PQC) and Zero-Knowledge Proof systems (ZKP). Particularly interested in ZK-SNARKs, ZK-STARKs, and lattice-based cryptographic constructions in the context of critical infrastructure.

Professionally, I work at the intersection of Operational Technology and information security — commissioning industrial systems, segmenting OT networks, and implementing cryptographic agility for environments where legacy protocols meet modern security requirements.

From programming ATEX-rated PLCs in explosive atmospheres to designing encrypted middleware for governmental data exchange — I build systems where correctness and security are non-negotiable.

GitHub LinkedIn Download CV
Certifications

Certifications

AZ-500 Azure Security Engineer 2026
AZ-900 Azure Fundamentals 2024
CompTIA Security+ 2026
Niebezpiecznik - CyberSec 2024
Experience

Experience

  1. Aug 2025 – Present

    IT Security Consultant · Agentic AI Security @ Freelance · Warsaw / Remote

    Developing secure middleware for governmental data exchange with strict authentication and data integrity protocols. Designing encrypted relational databases for high-concurrency environments and building full-stack applications hardened against OWASP Top 10.

    MiddlewarePythonSQLAPI SecurityOWASPEncryption

  2. May 2024 – Aug 2025

    PLC Systems Engineer - Security @ KBA Automatic Sp. z o.o.

    Onsite commissioning for large-scale industrial zones ensuring OT code integrity and secure communication between nodes. Managed protocol translation (Profinet / EthernetIP / Modbus) and network segmentation to isolate critical production assets.

    ProfinetEthernetIPModbusOT SecurityNetwork Segmentation

  3. 2023

    Technical Intern - OT Security @ Turck Sp. z o.o.

    Programmed devices for explosive atmospheres (ATEX), emphasising security-by-design in high-risk physical environments and IEC 61131-3 PLC programming.

    ATEXIEC 61131-3PLCOT Security
Education

Education

  1. 2024 – Present

    B.Eng. Automation & Robotics - Industrial Computer Science

    Warsaw University of Technology (ARICS)

    Focus: Industrial Computer Science and Networked Control Systems.

  2. 2020 – 2024

    Mechatronics Technician

    ZSEl Tadeusza Kościuszki

    Accelerated path - skipped one grade.

Skills

Skills Matrix

▶ OT & Industrial Security

  • Modbus / Profinet / EthernetIP █████
  • IEC 61131-3 PLC Programming █████
  • OT / IT Network Segmentation ████░
  • ATEX / Secure Commissioning ████░
  • Cyber-Physical Systems ████░

▶ Cloud & Application Security

  • Azure (AZ-500 / AZ-900) ████░
  • API Security / OWASP Top 10 ████░
  • Encryption-at-rest & in-Transit ████░
  • Linux / Windows Hardening ████░
  • Secure Database Architecture ████░

▶ Development

  • Python ████░
  • C++ / Rust ███░░
  • JavaScript / React ███░░
  • SQL ███░░
  • Bash / Shell ████░

▶ Cryptography & Research

  • Post-Quantum Cryptography (PQC) ███░░
  • Zero-Knowledge Proofs (ZKP) ███░░
  • ZK-SNARKs / ZK-STARKs ██░░░
  • Lattice-based Cryptography ██░░░
  • Cryptographic Agility & Migration ███░░