19.10.2026 aktualisiert
Premiumkunde
100 % verfügbarFreelance AI & Security Architect · Agentic AI · Sovereign On-Prem LLM · Network Security · DORA
Munich, Deutschland
Nur Remote
Master DegreeÜber mich
AI & Security Architect, 25 yrs (NATO, banks under DORA/BaFin, AT&T, Kyndryl). Founder of vExpertAI: built sovereign on-prem multi-agent AI hands-on – fine-tuned LLMs on NVIDIA GPUs, RAG, MCP, guardrails/HITL, Kubernetes – from lab to customer pilot. English C1+, German B1/B2. Available now.
Skills
Cisco AsaKomplexe NetzwerkeVPNNetwork SecurityNetzwerkarchitekturRoutingData Center NetworkCisco-SwitchesCisco
I have a robust set of skills and extensive knowledge in the fields of network architecture, design and configuration, and advanced technological solutions.
- Network Architecture and Design:
- Proficient in high-level and low-level design (HLD/LLD) for complex network infrastructures.
- Experienced in designing and configuring data center networks with Cisco Nexus and Palo Alto technologies.
- Specialized in traditional and advanced networking technologies, including Cisco ACI, SD-WAN, and SD-LAN.
- Expertise in transitioning traditional networks to modern solutions like Cisco ACI and FabricPath.
- Skilled in WAN redesign and IP architecture planning.
- Cloud and Connectivity Solutions:
- Designing and implementing Azure connectivity and vWAN architecture.
- Migration of network solutions to cloud platforms, ensuring robust and scalable connectivity.
- Providing technical advisory services for cloud migration projects.
- Security and Troubleshooting:
- Design and configuration of Cisco ASA and Palo Alto firewalls.
- Implementing VPN, NAT, and routing solutions for enhanced network security.
- Troubleshooting complex network issues using Python scripts for automation.
Erfahrung
Berufserfahrungmehr als 10 Jahre
Freelancer seit2024
Sprachen
DeutschgutEnglischverhandlungssicherRumänischMuttersprache
Projekthistorie
Data Center Networks:
- design new ACI and VxLAN/EVPN DC solutions;
- Designed and configured pilot migrations from traditional networks to Cisco ACI.
- HLD and LLD for new projects and for migration (from traditional to ACI)
- design, configuration of Cisco devices (Nexus, ISE, Prime etc)
- Conducted assessments of network architecture from various vendors including Cisco, Arista, and Juniper
- Azure Connectivity and vWAN Architecture: Developed designs for connectivity of the customer environements (DC, HQ) to Azure
European Bank Migration and Transformation Project:
- Network Transformation: Led the migration from traditional Cisco Data Center technologies to FabricPath and SDN.
- Presales Consultancy: Provided consultancy for networking solutions and built business cases for innovation projects.
- WAN Network Redesign: Redesigned WAN networks and created HLD and LLD documentation.
- Firewall Migration: Migrated from Juniper SRX to Palo Alto firewalls, handling VPN, NAT, and routing.
- QoS Design: Configured and automated pilot sites for new QoS design.
- Workshops and Collaboration: Conducted workshops with customers and other supporting organizations.
- SDN Initiatives: Worked on SDN initiatives and technological roadmaps.
- Cisco SW Certification Project: Led a project to certify Cisco software with a team of architects and engineers.
AT&T - Bratislava, Slovakia
* Performed network assessment and recommended best practice network architecture for the client's
network performance and design;
* Performed the low level design for a WAN redesign project;
* Contributed to the design of the overall IP architecture as well as IP planning;
* Supported and provided technical leadership for network integration of cross tower services to
the service delivery engineering teams;
* Responsible for the end-to-end projects, from the design phase till the testing phase and handing
over to the customer;
* Supported of the client to define and plan all major infrastructure changes within the AT&T
scope.
* Performed network assessment and recommended best practice network architecture for the client's
network performance and design;
* Performed the low level design for a WAN redesign project;
* Contributed to the design of the overall IP architecture as well as IP planning;
* Supported and provided technical leadership for network integration of cross tower services to
the service delivery engineering teams;
* Responsible for the end-to-end projects, from the design phase till the testing phase and handing
over to the customer;
* Supported of the client to define and plan all major infrastructure changes within the AT&T
scope.