Theodoros Skouras
Certified in Cybersecurity
Experience
Network Security Architect
Freelancer / Consulting Services
- Architect network solutions in hybrid and heterogeneous environments, both in cloud and on premises
- Workshop and Proof of Concept
- System and Network hardening
- Penetration Testing and Vulnerability analysis
- Packet Analysis, and identification of root causes in heterogeneous and complex networks
- API security testing
- ISMS Design and Development, Private Sector. Assisted companies of various sizes and complexity by leading projects with the aim to design and develop robust enterprise information security (ISO 27001 compliant)
- Produce and maintain technical documentation
Technologies and Methodologies used: OWASP, MITRE ATT@CK, ITIL v4, COBIT, Cisco IOS XE and NX-OS, Cisco Thousandeyes, Aruba, pfSense, Azure, AWS, Kali Linux, Burpsuite, Maltego, Metasploit, Nessus, Wireshark/tcpdump, Grafana, Zabbix, Proxmox, Debian
Principal Network & Security Engineer
Far Galaxy Networks
- Team Leader of IT & Network and responsible for the overall company's security posture
- Architect network solutions in hybrid and heterogeneous environments, both in cloud and on premises
- Management of IT & Network and responsible for the overall company's security posture
- Produce and maintain technical documentation and guides leveraging Jira Confluence
- System Engineering Linux Clusters and Data Center farms
- Troubleshooting networks and applications performance
- System hardening following industry's best practices
- Vulnerabilities Assessments
Technologies and Methodologies used: ITILv4, COBIT, SD-WAN Zscaler, Cisco IOS XE and NX-OS, pfSense, Fortinet, Sophos, Aruba Docker/Ansible, Microsoft Azure, AWS Linux, Proxmox, VMWare, F5 Load Balancers, Palo Alto, Shell Scripting Network Automation with Python Paramiko, Wireshark/tcpdump, Nessus
GALILEO Ground Network Monitoring Engineer
European Space Agency, DLR
- Monitoring & Control of GALILEO ground segment devices
- Performing Troubleshooting Activities
- Performing Contingency Activities
- Trouble Ticket Management
- Testing & Integration
- Review of element/segment operative procedures
- Contribution to preparation of reports
Technologies and Methodologies used: Linux, SNMP, Sophos, Forcepoint, GDATA, openLDAP, Alcatel-Lucent Switches & Routers
Senior Network & Security Engineer
Orange TS
- Analysis of business needs of potential customers
- Workshop and Proof of Concept
- Implementation of IT projects according to the business needs
- Maintenance of the overall company's onprem infrastructure
- Second & Third level support
Technologies and Methodologies used: CISCO Routers/Switches, Barracuda Load Balancers, Virtualization (VMWare vSphere, Hyper-V), Dell Servers & Storage, VoIP technologies (Cisco Call Manager, CUCM, Asterisk, FusionPBX), Linux
Network Engineer
Intrasoft International S.A.
- Network design & implementation of the Public Insurance Institution of Greece. This project included Cisco Switches & Routers, Cisco ASA for the perimeter security, Barracuda Load Balancers. More than 100 points of presence, directly connected to the main infrastructure, in the whole country with WAN (BRI and Serial)
- Network design & implementation of Mesh Wireless Network in the Port Authority of Piraeus, with Cisco Aironet, Cisco Wireless Controllers and Cisco Switches & Routers
- Design and configuration of site to site VPN with private banks with Cisco ASA
- Network design & implementation of Greek Police network with Fortinet appliances
- Network design & implementation of Ministry of Development with Cisco Routers/Switches and Cisco ASA and IPS for the perimeter security
- Network implementation of the information system in Public Transportations of Athens, with HP MSM Wireless Controllers and HP5800 Layer 3 switches
Technologies and Methodologies used: Cisco Catalyst Switches 2924, 2950, 3550, 3760X Stackwise 3950, Cisco Layer 3 Switches 6500, Cisco Routers, Barracuda Loadbalancer, Barracuda WebFilter, Barracuda Antispam, HP MSM Wireless Controllers, HP Procurve Switches, Fortinet FortiGate, FortiAnalyzer, FortiManager
Network Support Engineer
Velti S.A.
- Member of the internal IT department with focus on networks
- Daily network and systems checks
- Redesign of the local network infrastructure according to the needs of the company
- Presales of network equipment
Technologies and Methodologies used: Cisco Catalyst Switches 2924, 2950, 3550, Microsoft Servers
Summary
Languages
Education
Athens Information Technology (affiliated with Carnegie Mellon)
MSc · Information Technologies & Telecommunications · Athens, Greece
University of West Athens
BSc · Information Systems Engineer · Athens, Greece
Certifications & licenses
Certified In Cybersecurity
Isc2
Cisco Ccnp
Cisco
Fortinet Fcp - Network Security
Fortinet
Ipv6 Analyst & Database Associate
Ripe
Linux Foundation Certified System Administrator
Linux Foundation
Microsoft Certified: Azure Network Engineer Associate
Microsoft
Wireshark Certified Network Analyst
Wireshark
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