CV | Kurt Wiedenhofer – Network & Security Leadership

Contact
📞 +43 664 847 9106
✉️ office@wiedenhofer.co.at
🔗 linkedin.com/in/kurtwiedenhofer
🌐 wiedenhofer.co.at

Download CV (PDF)

Professional Summary

IT leader with 30+ years in enterprise networks and telecommunications, including 20+ years in senior management. Proven record delivering global Data Center and WAN transformations (Cisco ACI, NGFW, SD-WAN) with near-zero downtime. Deep expertise in cloud & hybrid networking (Azure, Kubernetes connectivity), enterprise security & compliance (ITIL, PCI DSS, SOX), and voice consolidation (Microsoft Teams Phone). Strong vendor management, RFP leadership, and multi-million-euro budgets.

Core Competencies

Data Center & SDN (Cisco ACI), micro-segmentation
WAN, MPLS & SD-WAN, Zero Trust, local Internet breakout
Azure & hybrid networking, Kubernetes connectivity, enterprise VPN
Next-Gen firewalls, remote access, governance & compliance
Microsoft Teams Voice, SIP/SBC, migration & adoption
Operational Network Security, IDS/IPS, DDoS, SIEM
International team leadership, project/program mgmt, RFPs, vendor negotiation, budget control

Selected Achievements

23 PBX → Microsoft Teams Voice for >1,000 users across EMEA & APAC; ~–25 % voice OPEX; zero downtime.
Global SD-WAN across 30+ locations / 30+ countries; up to 2× app performance and double-digit % cost reduction.
Data Center SDN & Security migration to Cisco ACI with NGFW; micro-segmentation; auditability (PCI/SOX).
Data Center migrations (e.g., Singapore → Vienna) without significant business disruption.

Professional Experience

Global Blue Service Company Austria GmbH — Vienna · 2012–2024

Senior Manager, Corporate Network & Telecommunications

Global network ownership (EU/Asia/Australia): Data Center, Security, WAN/LAN, Voice.
DC transformation to Cisco ACI; NGFW; micro-segmentation.
MPLS → SD-WAN for 30+ sites; performance ↑, carrier spend ↓.
Cloud networking (Azure, hybrid), Kubernetes connectivity, enterprise VPN.
PBX consolidation to Microsoft Teams Phone; ~–25 % OPEX.
SSL/VPN migration with regional cloud gateways; >50 % OPEX reduction.
Governance/compliance: ITIL, PCI DSS, SOX; vendor & budget control.

Self-Employed Consultant · 2011

Telecom & data center migrations; project management training.

Erste Bank Group — Bratislava & Vienna · 2005–2010

Head of Group Network; Head of Competence Center Data/Voice; Head of Network

DC network replacing regional infrastructures; unified security/telecom.
~50-person international team; standards & governance.

Hutchison 3G Austria (Drei) · 2001–2005

Engineering Lead — Packet-Switched Core (UMTS)

Implemented/operated mobile core network incl. LIR Internet access & roaming.

Azlan GmbH · 2001

Product & Account Manager — Cisco Systems.

IT-Austria GmbH (formerly Spardat GmbH) · 1985–2000

Network Architect — Banking DCs; backbone; savings bank LAN/WAN.
Technical project management — technology & banking merger.
SNA systems programmer.

Project Highlights (Goal → Approach → Impact)

Microsoft Teams Voice Consolidation (Global)

Goal: Reduce telephony OPEX and standardize collaboration.
Approach: Replace 23 Siemens/Unify PBX with Teams Phone (Direct Routing, central SIP/SBC).
Impact: ~–25 % voice OPEX, zero downtime; better collaboration.

Global SD-WAN Transformation

Goal: Better app performance and lower costs.
Approach: SD-WAN with local Internet breakout; Zero Trust posture.
Impact: Up to 2× performance; double-digit % cost reduction.

Data Center SDN & Security Modernization

Goal: Scalability, cloud computing & compliance.
Approach: Cisco ACI fabric + NGFW, micro-segmentation, policy automation.
Impact: Higher agility; audit readiness (PCI/SOX).

Education & Certifications

Foundation Certificate in IT Service Management (ITIL)
Executive Management Training — Erste Bank Group
Comprehensive Project Management Training (2011)
Industrial Business Administration (Apprenticeship — “Industriekaufmann, LAP”) — Siemens AG
Ongoing: security, DC mgmt, cloud, SD-WAN, enterprise telecom

Languages

German: Native
English: Fluent

Additional Experience (Family Business)

Co-Owner & Operations/Digital Lead — Salon Eva (Vienna) · Part-time, 2024–present

Finance planning & controlling, vendor & contracts, website/frontend, SEO/Local SEO (Google Business Profile), online booking stack, CRM/newsletter, campaigns (Meta/Google), POS & scheduling, inventory; GDPR & fiscal compliance. No hairdressing duties.

Kurt Wiedenhofer: Professional Network Management & Security Expertise