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Sectors with hands-on experience

More than 20 years of practice in large organizations. Below I summarize typical pain points and how I think about each sector.

Energy

6 years at ČEZ ICT Services as Enterprise Solution Architect (security, cloud, SAP). Deep knowledge of environments where IT and OT live under one roof.

Typical pain points and topics

  • IT/OT convergence and isolation of industrial networks
  • Legal requirements for critical information infrastructure
  • Supply chain for industrial solutions
  • Security of SCADA / DCS systems and field level
  • Cloud adoption while maintaining compliance

Finance & Banking

Migration of banking applications to AWS for Tatra Banka. Security review of an investment group, post-quantum PKI in fintech.

Typical pain points and topics

  • Migration of core systems to cloud while staying compliant
  • IAM and privileged access management
  • PKI, cryptography, post-quantum readiness
  • Security baselines for AWS/Azure (EC2, S3, RDS)
  • Compliance with NIS2, DORA, and other regulations

Manufacturing

Current project: incident response plans for global chemicals manufacturer (IT + OT, NIS2). IoT architecture for 50,000 industrial devices.

Typical pain points and topics

  • Convergence of IT and OT security
  • Disaster recovery and continuity for production sites
  • IoT at the scale of tens of thousands of devices
  • Supply chain security
  • NIS2 impact on manufacturing processes

Telco & Payments

IT Architect (cloud, security) at W.A.G. payment solutions (Eurowag). Online onboarding design, cloud strategy, IAM for hybrid scenarios.

Typical pain points and topics

  • Security of payment platforms
  • Hybrid cloud (front-end in cloud, back-end on-prem)
  • Identity management for millions of end users
  • Integration with CRM, ERP, third parties
  • PCI DSS context during cloud migration

Critical Information Infrastructure

Work in environments with the highest security and availability demands. Experience with formal processes, security audits, and regulator communication.

Typical pain points and topics

  • Inclusion in CII and related obligations
  • Role separation and formal governance
  • Security documentation at the level required by the regulator
  • Regular audits and inspections
  • Incident reporting and NÚKIB communication

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