Jürgen Waldl
Lead Architect - Security @ base-IT GmbH
📍 Austria 🇦🇹
Ich unterstütze Unternehmen dabei, widerstandsfähige Sicherheitsarchitekturen im Microsoft-Ökosystem aufzubauen - von Identity über Detection bis Response.
Helping organizations build resilient security postures across the Microsoft ecosystem - from identity to detection to response.
Über mich
Ich bin Jürgen Waldl, Lead Architect für Security bei der base-IT GmbH in Österreich. Mit über 15 Jahren Erfahrung in der IT - davon der Großteil im Security- und Netzwerkumfeld - unterstütze ich Unternehmen zwischen 250 und 15.000+ Mitarbeitern dabei, ihre Microsoft-Infrastruktur wirklich sicher zu machen.
Mein Weg in die Security war kein geradliniger: Vom IT-Systemadministrator über den Network & Security Architect bis hin zum CISO-Agenden-Verantwortlichen bei einem internationalen Industriekonzern - ich habe die Herausforderungen auf allen Ebenen erlebt. Heute fließt diese Praxiserfahrung direkt in meine Consulting-Arbeit und in diesen Blog ein.
Mein Fokus liegt auf Entra ID, Active Directory Security, Microsoft Sentinel, Defender XDR und Azure Security - immer mit dem Ziel, reale Bedrohungen zu adressieren statt Compliance-Checklisten abzuhaken.
Ausbildung & Zertifizierungen
🎓 Studium
FH St. Pölten
📜 Zertifizierungen
Karriere-Highlights
Lead Architect Security - base-IT GmbH
Microsoft Security Consulting: Sentinel, Defender XDR, Entra ID, Defender for Cloud. Architektur & Konzeption für Enterprise-Kunden.
Security Architect & Teamleitung - POLYTEC Holding AG
Aufbau ISMS & TISAX-Vorbereitung, globales SDWAN-Rollout, Zero-Trust Firewalling, Identity Management, CISO-Agenden. Fachliche und personelle Führung eines 6-köpfigen Infrastrukturteams.
Senior Architect & Teamlead - base-IT GmbH
Enterprise Network & Security Projekte: 802.1x Rollouts, PKI-Aufbau, Firewall-Migrationen, WLAN-Infrastruktur für internationale Kunden.
IT Systems & Network - Wacker Neuson / Dimension Data
Die Grundlagen: Systemadministration, Netzwerkbetrieb, Routing & Switching, Field Engineering bei internationalen Kunden.
Focus Areas
Entra ID & AD Security
Identity Governance, Privilege Escalation Prevention, Conditional Access Hardening, Hybrid AD Security.
Azure Security
Cloud Posture Management, Tenant Hardening, Workload Identity Security, Zero Trust Architecture.
Microsoft Sentinel
Detection Engineering, KQL Query Development, Threat Hunting, SIEM Optimization.
Defender XDR
Extended Detection & Response, Incident Investigation, Threat Intelligence, SOC Operations.
Speaker & Community
Ich teile mein Wissen regelmäßig auf Konferenzen und Community-Events. Auf meinem Sessionize-Profil findest du aktuelle und vergangene Sessions rund um Microsoft Security, Threat Detection und Identity Protection.
→ Sessionize-Profil ansehenDieser Blog
whennotif• ist der Ort, an dem ich Findings aus der Praxis, Detection-Queries, Fehlkonfigurationen und hands-on Security-Guidance aus Enterprise-Projekten teile. Kein Marketing. Kein Buzzword-Bingo.
Jeder Beitrag basiert auf realen Szenarien, die mir in der Praxis begegnet sind - anonymisiert und in umsetzbare Inhalte verwandelt.
About Me
I'm Jürgen Waldl, Lead Architect for Security at base-IT GmbH in Austria. With over 15 years of experience in IT - most of it in security and networking - I help organizations with 250 to 15,000+ employees truly secure their Microsoft infrastructure.
My path into security wasn't a straight line: From IT Systems Administrator to Network & Security Architect to CISO responsibilities at an international industrial corporation - I've experienced the challenges at every level. Today, this hands-on experience flows directly into my consulting work and this blog.
My focus is on Entra ID, Active Directory Security, Microsoft Sentinel, Defender XDR, and Azure Security - always with the goal of addressing real threats rather than ticking compliance checkboxes.
Education & Certifications
🎓 Education
University of Applied Sciences St. Pölten
📜 Certifications
Career Highlights
Lead Architect Security - base-IT GmbH
Microsoft Security Consulting: Sentinel, Defender XDR, Entra ID, Defender for Cloud. Architecture & design for enterprise customers.
Security Architect & Team Lead - POLYTEC Holding AG
Built ISMS & TISAX preparation, global SDWAN rollout, Zero Trust firewalling, Identity Management, CISO responsibilities. Technical and personnel leadership of a 6-person infrastructure team.
Senior Architect & Team Lead - base-IT GmbH
Enterprise Network & Security projects: 802.1x rollouts, PKI setup, firewall migrations, WLAN infrastructure for international customers.
IT Systems & Network - Wacker Neuson / Dimension Data
The foundations: Systems administration, network operations, routing & switching, field engineering for international customers.
Focus Areas
Entra ID & AD Security
Identity Governance, Privilege Escalation Prevention, Conditional Access Hardening, Hybrid AD Security.
Azure Security
Cloud Posture Management, Tenant Hardening, Workload Identity Security, Zero Trust Architecture.
Microsoft Sentinel
Detection Engineering, KQL Query Development, Threat Hunting, SIEM Optimization.
Defender XDR
Extended Detection & Response, Incident Investigation, Threat Intelligence, SOC Operations.
Speaker & Community
I regularly share my knowledge at conferences and community events. On my Sessionize profile you'll find current and past sessions on Microsoft Security, Threat Detection and Identity Protection.
→ View Sessionize profileThis Blog
whennotif• is where I share real-world findings, detection queries, misconfigurations, and hands-on security guidance from enterprise engagements. No marketing. No buzzword bingo.
Every post is based on actual scenarios I've encountered in the field - anonymized and turned into actionable content.