Tadeusz A.-Enterprise Architecture • Security Architecture • Infrastructure • Network • Cloud
Check rate
Experience
Lead Architect Enterprise Architecture & Security
CGI
Lead Architecture in an interdisciplinary architecture team covering enterprise, solution, NOOTS, cloud and security architecture as well as regulatory and European interoperability requirements.
Public / Government
Development and management of target architectures, principles, standards and technical guardrails; assessment of Security-by-Design, IAM, data protection and interface/integration architectures; architecture reviews, security assessments, risk analyses, and preparation of decision records, target visions, roadmaps and decision papers. Architectural knowledge and consideration of relevant AD-NOOTS requirements, particularly for IAM, authorization, secure integration and interoperability.
Technologies / Methods: Enterprise Architecture, Solution Architecture, Security Architecture, Cloud Architecture, NOOTS / EU-OOTS, IAM, Authorization, Security-by-Design, API/Integration Architecture, Interoperability, Risk Analysis, Architecture Governance
Security and integration requirements as well as technical decisions are structured in reliable architecture and decision artifacts.
Senior IT Consultant Infrastructure & Security
CGI
Public / Government
Analysis and assessment of existing IT infrastructures with a focus on availability, access security, site security and operational security.
Design of technical target states and target architectures; assessment of assets, topologies, interfaces, dependencies and operational risks; technical stakeholder coordination; conceptual classification of modern network, SDN, firewall and Fortinet/FortiGate topics.
Technologies / Methods: Data Centers, Firewall, Fortinet/FortiGate, BGP, VXLAN, EVPN, SDN, Network Fabric, Proxmox, OpenStack, VMware NSX, VyOS, SONiC, OVN
Existing infrastructure, security and operational risks were assessed in a structured way and transferred into implementable target states and action packages.
Senior IT Architect Migration & Security
CGI
Public / Government
Planning, assessment and support of complex IT migration projects under technical, organizational and security-related requirements.
Validation of migration plans, analysis of source and target environments, assessment of server, network and application dependencies as well as segmentation, tenant separation and virtual network architectures; Fortinet/FortiGate and firewall topics in the context of target architecture and migration.
Technologies / Methods: BSI IT-Grundschutz, Fortinet/FortiGate, Firewall, Cloud, SDN, OpenStack, VMware NSX, Segmentation, Tenant Separation, DevSecOps
Migration, security and operational requirements were transferred into migration- and release-ready implementation steps.
Senior IT Architect
CGI
Public / Government
Planning, implementation and migration of complex data center infrastructures with highly available IT architectures and hybrid cloud connections.
Preparation of technical target architectures as well as migration, operational and security concepts; assessment of solution variants and risks; technical project management; support of implementation, cutover and operational transition.
Technologies / Methods: PRINCE2, TOGAF, BSI, CISSP, IAM, DMZ, ITIL, SAN/LAN, Fortinet/FortiGate, BGP, VXLAN, EVPN, Proxmox, OpenStack, VMware NSX, Cloud, DevOps
Provision and migration of a high-performance, highly available data center environment with an improved operational transition and greater resilience.
Senior Consultant
CGI
Public / Government
Planning and execution of a complete data center migration, including the transition of relevant IT infrastructure components.
Development of target architectures, migration and operational concepts; planning of shutdown, target environment and cutover/rollback scenarios; coordination with customers, manufacturers and service providers; automation of migration tasks and technical checks.
Technologies / Methods: LAN, SAN, Storage, Veeam, BSI, Perl, Clustering, ITIL, VMware vSphere, Backup/Recovery
Planned and supported data center migration with an orderly transition and a reliable foundation for rebuilding the target environment.
IT Infrastructure, Project Management, Network & Security
Itellium / Atos
Retail / Consumer Services
Building and further developing highly available infrastructure, network, and security environments, as well as managing security- and operations-related projects.
Project management for Security Operations & Compliance and SOC/SIEM proof of concept; LAN administration, installation, and troubleshooting; performance analysis, monitoring, data center architectures, and disaster recovery scenarios; creation of technical documentation.
Technologies / Methods: ITIL, SIEM, Cisco, Linux/UNIX, Windows, VMware, LAN, Network Management, Backup/Recovery, IT Security
Building and further developing stable infrastructure and operations environments, as well as successfully managing security- and operations-related initiatives.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Retail, Government and Administration, and Information Technology.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology and Project Management.
Summary
Senior IT Security & Enterprise Architect with 29 years of practical experience in complex IT, infrastructure, network, cloud and migration projects, particularly in regulated and business-critical government environments. Combines enterprise, solution, security, infrastructure and integration architecture with NOOTS/EU-OOTS-related requirements, Security-by-Design, IAM/Authorization, interoperability and technical project management. Focuses on analyzing and assessing complex system landscapes, developing technical target architectures, and translating requirements into reliable, secure and operable solutions. Experience includes Security-by-Design, IAM, BSI IT-Grundschutz, risk and security assessments, high availability, resilience, migration, troubleshooting, and the technical support of cutovers and operational transitions. Complex technical relationships are quickly understood, assessed in a structured way, and communicated appropriately to architecture, security, operations, development and business departments. Even under time pressure, careful planning, a strong sense of responsibility and solution-oriented action shape the way of working.
Skills
Enterprise Architecture & Target Architectures
Security Architecture & Security-By-Design
Solution / Infrastructure Architecture
Network Architecture & Data Centers
Cloud / Hybrid Cloud Architecture
Iam, Bsi It-Grundschutz & Risk Analysis
High Availability, Resilience & Disaster Recovery
Migration, Transformation, Cutover & Rollback
Troubleshooting & Operational Stabilization
Architecture Reviews & Security Assessments
Itsm, Incident / Problem / Change / Release
Technical Project Management & Stakeholder Coordination
Virtualization & Platform Architectures
Automation, Devops & Ci/Cd-Related Processes
Fortinet/Fortigate & Firewall Contexts
Data, Middleware And Integration Architecture
Bgp, Vxlan, Evpn, Sdn, Network Fabric
Vmware, Vmware Nsx, Proxmox, Openstack
Lan/San, Data Centers, High Availability
Cloud / Hybrid Cloud, Cloud-Native Concepts
Monitoring, Troubleshooting, Operational Stabilization
Togaf, Prince2, Ipma Level C, Scrum, Safe, Devsecops
Siem, Pki, Certificate Management, Audit Logging
Dsgvo, Idnrg, Sdg-Vo, Dora, Bait, Eba
Noots / Eu-Oots, Authorization / Pep, Trust Architecture, Mtls, Api Security
Enterprise, Solution, Security, Infrastructure, Cloud And Integration Architecture
Adr / Decision Records, Architecture Governance, Roadmaps
Languages
Education
Technische Universität Wrocław
Diplom-Ingenieur · Computer Science · Wrocław, Poland
Rudolf-Diesel-Technikerschule Nürnberg
State-certified Electrical Engineering Technician · EDP · Nuremberg, Germany
Certifications & licenses
Cisco Basis und Advanced Switch & Router Configuration
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Tadeusz is based in Munich, Germany.
Tadeusz speaks the following languages: German (Native), Polish (Native), English (Intermediate).
Tadeusz has at least 21 years of experience. During this time, Tadeusz has worked in at least 6 different roles and for 2 different companies. The average length of individual experience is 3 years and 5 months. Note that Tadeusz may not have shared all experience and actually has more experience.
Based on recent experience, Tadeusz would be well-suited for roles such as: Lead Architect Enterprise Architecture & Security, Senior IT Consultant Infrastructure & Security, Senior IT Architect Migration & Security.
Tadeusz's most recent position is Lead Architect Enterprise Architecture & Security at CGI.
In recent years, Tadeusz has worked for CGI.
Tadeusz is most experienced in industries like Retail, Government and Administration, and Information Technology.
Tadeusz is most experienced in business areas like Information Technology and Project Management.
Tadeusz has recently worked in industries like Government and Administration and Information Technology.
Tadeusz has recently worked in business areas like Information Technology and Project Management.
Tadeusz holds a Master in Computer Science from Technische Universität Wrocław.
Tadeusz has 4 certificates. Among them, these include: Certified Information Systems Security Professional (CISSP), Cisco Basis und Advanced Switch & Router Configuration, and ITIL V3 Foundation Examination.
Tadeusz will be available from January 2027.
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Calculated based on our freelancers’ daily rates as of 20 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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