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Sebastian Haas

I build things end to end. Offensive security tools, autonomous AI agents, security automation — at the intersection of AI and security. AI Engineer & IT Security Engineer at Thales Group. Based in Kiel, Germany.

you can outsource your thinking but you cannot outsource your understanding.

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Hands-on Experience

Hacking Platforms
TryHackMe — Top 4% globally · 88 Rooms · 19 Badges · [0x9] Mage · SAL1 Certified HackTheBox — Level 15
Self-built Labs
Pentest Lab — Active Directory, network segmentation, lateral movement & attack simulation Forensics & SIEM Lab — Splunk, log analysis, disk & memory forensics, malware triage
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Latest Posts

2026-03-30 AI Productivity Engineering
Iterate With AI: Why the Fastest Builder in the Room Isn't the Best Coder

I rebuilt my entire personal website in 15 minutes. Not by writing every line of CSS by hand, but by iterating with AI until it was exactly …

2026-03-30 AI Neurodiversity Opinion
Why Small Neurodivergent Teams With AI Will Outpace Big Companies

There’s a shift happening that most corporate leaders aren’t paying attention to. While large companies are busy hiring hundreds …

all posts →
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Certifications

Red Team & Offensive Security
CRTO II — Certified Red Team Lead CRTO I — Certified Red Team Operator PNPT — Practical Network Pentester PAPA — Practical AI Pentest Associate CPT — Certified Pentester eJPT — Junior Pentester
Blue Team & Detection
SAL1 — Security Analyst Level 1 BTL1 — Blue Team Level 1
CompTIA
Cloud+ Security+ ITF+