David Franken
IT Specialist
Resume
Education
2005
Albeda CollegeICT Systems- & Networks
2003
Albeda CollegeICT Administrator
Experience
2016 - Current
Stichting ICTUNetwork Engineer
The project focused on migrating server clusters from SaaS to private cloud, redesigning the data center network, and migrating Citrix XenDesktop VDI. It included SSL hardening for HTTPS sites, a network migration from Cisco to Huawei, and ISATAP implementation for Direct Access with load balancing. Additionally, various Citrix NetScaler solutions were deployed, including Office 365, ADFS, and Exchange 2013. The Citrix NetScaler OS was upgraded, and network performance was monitored. Operational management covered Citrix NetScaler, FortiGate firewalls, Huawei firewalls and switches, Cisco routers and switches, and an AeroHive wireless network supporting 525+ clients.
2014 - 2016
DAMEN ShipyardsNetwork Engineer
As a Network Engineer, responsibilities included designing networks for mid-sized engineering sites in Ukraine and South Africa. Developed a WiFi design using EAP-TLS with NPS for secure access. Managed the remote network migration for the Ukraine site and implemented Office 365 integration with Microsoft ADFS 3.0 on NetScaler for seamless authentication and access management.
2014 - 2016
Ipse de BruggenNetwork Engineer
Redesign of the existing KPN DWDM ring to enhance infrastructure availability. This involved a full rework of the current DWDM ring, with consideration for a migration path across 10 mid-sized locations and 2 data centers.
2011 - 2014
GGZ RivierduinenNetwork Engineer / Technical projectlead
As a Network Engineer and Technical Project Lead, I designed LAN/WAN networks for 25 locations and developed a KPN DWDM ring design for 10 sites and 2 data centers. I created standard firewall and load balancer clusters using Cisco and Citrix technologies. Additionally, I implemented highly available Cisco networks for 10 new healthcare facilities and established a LAN link between Stichting Ipse de Bruggen and GGZ Rivierduinen.
2010 - 2011
GGD Zaanstreek-WaterlandSystem and Network Administrator
I was responsible for maintaining an infrastructure across 17 locations, managing over 25 server clusters.
2005 - 2010
Mintel NetwerkbeheerSystem and Network Administrator (Field Service)
As a System and Network Administrator in the field service, I was responsible for managing the IT infrastructure of small to medium-sized businesses, ranging from a few employees to up to 50 employees for over 30 companies.
Network Skills
General understanding
Theory (OSI)
Troubleshooting
Monitoring
NIDS
Segmenting (subnet/VLAN)
Network Protocols
TCP/UDP/IP
Redunancy (HSRP/VRRP)
Spanning-Tree (STP)
Routing (OSPF/EIGRP/BGP)
MultiCast
Vendors
Cisco
Palo Alto
HP/Aruba
Huawei
Citrix
Kemp
Operating Systems
Microsoft
Linux
VMware
Knowledges
- TCP/IP
- Routing
- Switching
- Virtualisation
- Azure Cloud
- AWS Cloud
- Firewalling
- VMware
- Problem-Solving