Cybersecurity · Systems · Low-Level Engineering
Cybersecurity specialist and C programmer focused on systems that must stay predictable under pressure. I analyze attack surfaces, build reliable tooling, and write code close to the metal.
I prefer understanding systems at implementation depth: interfaces, assumptions, and failure behavior.
I am Tomasz Pieniążek, a Poland-based builder focused on cybersecurity and low-level programming. My work combines hands-on offensive thinking with practical systems engineering.
I am also a student (2022-2027) at Techni Schools, a private technical school focused on programming.
I care about clear threat models, robust internals, and tooling that stays useful under real constraints. If something matters, I want to know how it fails and how to make it fail safely.
Most of my projects are built to learn deeply: write it yourself, test it hard, observe behavior, and iterate from evidence.
Operating Principles
Terminal-first administration with operational control over hosts, services, and network boundaries.
Practical OWASP-driven testing with focus on root cause and exploitability, not checklist-only scanning.
Network-layer reasoning for detection, segmentation, and attack-path analysis across real environments.
Security design awareness around cryptographic primitives and common implementation failures.
Binary analysis fundamentals for understanding unknown code paths and low-level behavior.
Core capabilities across programming, security tooling, and operations.
Git
DailyVersion control for code, experiments, and release flow
Python
StrongTensorFlow, PyTorch, pandas, matplotlib
Python Environments
Strongpip, venv, virtualenv dependency management
Jupyter
WorkingPrototyping and data exploration
C
AdvancedSystems programming and performance-focused implementation
Make / CMake
StrongBuild systems for C projects
GDB
Non-negotiableStepping, breakpoints, and memory inspection
LLM Engineering
ActiveOpenAPI usage, simple MCP servers, and LM Studio workflows
Burp Suite
CorePrimary web testing platform
Recommended Core Tool
CyberChef
FrequentRapid data transformation and decoding
OpenSSL
FrequentTLS and crypto inspection workflows
Nikto
FrequentWeb server scanning and baseline checks
sqlmap
FrequentSQL injection testing automation
Metasploit
WorkingControlled exploit framework usage
Nmap
FrequentRecon and service enumeration
Gophish
WorkingPhishing simulation awareness
Wazuh
WorkingSIEM and monitoring operations
Linux Administration
Dailypermissions, processes, services, logs
Service Control
Dailysystemd units, restart policies, lifecycle ops
Task Scheduling
Strongcron jobs and automated maintenance
Network Control
Strongiptables/nftables filtering and policy setup
A focused selection of production-minded security engineering work.
A practical cybersecurity lab environment for testing attack paths, detection quality, and hardening decisions under controlled conditions.
Used as a repeatable proving ground for security workflows across network and application layers, with emphasis on evidence-driven remediation.
A full-stack security scanning platform that orchestrates Nmap, OpenVAS, Nuclei, and Nikto with live scan tracking, normalized findings, and analyst-focused triage workflows.
Built and shipped end-to-end architecture with queue-driven workers, scanner adapters, result deduplication, and production-focused reliability fixes so scans run consistently in containerized environments.
Custom database engine project focused on understanding storage internals, query execution, and performance tradeoffs at implementation level.
Builds low-level systems skills by implementing core database mechanisms directly instead of relying on black-box abstractions.
2022 - 2027
Private programming-focused technical school. According to Techni Schools materials, the program extends core curriculum with cybersecurity, AI, and game programming, and emphasizes practical learning on business-used technologies (including web/backend, cloud/devops, and low-level C/C++), plus internship-oriented experience.
technischools.com2023
Internship period focused on practical exposure to security workflows and team operations.
2024
Second internship term with expanded cybersecurity responsibilities and hands-on tasks.
2025
Summer internship centered on real-world security processes and operational support.
2025 | Ongoing
Ongoing internship role with continued growth in security engineering and incident-aware operations.