Serge De Klerk Email & Phone Number

Gold Coast, Queensland, Australia

Providing managed cyber security services to customers with a clear goal to elevate their security posture in alignment with the ASD's Essential 8 framework. Let's make cyber space a safer place!

Gold Coast, Australia

ONGC Systems is an IT service provider based on the Gold Coast. We provide a full range of services from full onsite infrastructures to hybrid cloud solutions using Microsoft Azure and Office 365. While resolving problems with current setups is still our bread and butter, we also provide pro-active solutions that are up-to-date with the latest technology.

Utrecht Area, Netherlands

Reclassering Nederland is responsible for the probation of criminal offenders.The company has over 3400 users in 40 different locations spread throughout the Netherlands. It's IT environment consists of 300+ virtual Citrix XenApp servers and 100+ application servers divided over 2 data centers. All XenApp servers are provisioned through Citrix Provisioning Server and the user environment is managed by the AppSense DesktopNow suite.Responsibilities:▪ upgrading all Citrix and AppSense products▪ administering Citrix farm▪ monitoring environment ▪ troubleshooting & solving problems▪ implementing new technology▪ assessing & improving current environment▪ Mentoring junior administratorsAchievements:▪ created a new Citrix PVS vdisk for XenApp farm, which included an upgrade to Office 2010▪ upgrade of the complete AppSense environment, including the introduction of Personalization servers ▪ created load balancing for different application servers by using the Citrix Netscaler.

The Hague Area, Netherlands

SBC Solutions is a solutions provider for enterprise level IT infrastructures. It provides skilled server-based computing specialists for clients in different industries.As a Citrix consultant I was mainly hired by clients for building new datacenters/infrastructures, troubleshooting existing terminal server environments or to support and educate their own IT department.Key technologies:▪ Citrix XenServer▪ Citrix XenApp▪ Citrix XenDesktop▪ Citrix Provisioning Server▪ Citrix Netscaler▪ Citrix Edgesight▪ AppSense DesktopNow▪ RES Workspace Manager▪ Microsoft Windows Server 2003-2008R2▪ Microsoft Exchange

Utrecht

Vitens delivers water to all households in the Utrecht area. The company has over 1.600 users and 80+ terminal servers. Project FIT had as a main goal to build a new datacenter using the lastest technologies providing growth capabilities and an easy upgrade path for future expansions.Responsibilities:▪ sequencing 40+ application with Microsoft App-V technology▪ providing application delivery using RES Workspace ManagerAchievements:▪ virtualized several problem applications, such as AutoCAD 2012

Den Haag

The Ministry of Infrastructure strives to create an efficient network of roads, railways, waterways and airways, effective water management to protect against flooding, and improved air and water quality.The IT environment consists of 4000+ users in 80 locations on different endpoints, such as XenApp servers, XenDesktop VDI’s, thin- and fat clients.Responsibilities:▪ Virtualizing 600+ applications with Citrix Application Streaming▪ Troubleshooting performance issues▪ Tuning XenApp environment

Rijswijk

The Central Agency for the Reception of Asylum Seekers (COA) houses them at reception centres and provides their basic needs. Asylum seekers are entitled to reception from the time they request asylum until they receive a residence permit or must leave the Netherlands. I was working in a project team of 5 consultants, building a new datacenter for COA’s 4000+ users. The XenApp farm consists of over 200 virtual machinesResponsibilities:▪ Developing virtual machine template for XenApp servers▪ Virtualizing approximately 60 applications with MS App-V▪ Introducing mandatory profiles ▪ Upgrading IE6 to IE8▪ Building new user workspace using RES Workspace Manager▪ Building POC environment for AppSense Performance Manager▪ Troubleshoot performance problems on old Xenapp farmAchievements:▪ Designed & implemented entire user environment▪ Identified & solved performance problems n XenApp farm▪ Introduced mandatory profiles & user virtualization with a problem percentage of only 3% across the entire user population

Dordrecht

Managing Citrix Presentation Server 4.5 farm, 3rd level support- Citrix XenApp 4.5- RES Powerfuse 8- Citrix XenServer 5- Microsoft Server 2003- Igel thin clients

Managing Citrix Xenapp 5.0 farm, sequencing applications using App-V and 3rd level support- Citrix XenApp 5.0- Microsoft App-V 4.5- Microsoft Server 2003

Terneuzen Area, Netherlands

Responsible for 2nd and 3rd line support in a Windows Server 2003 terminal server environment.

The Hague Area, Netherlands

Team leader for a unit of 4 medior systems engineers. Responsible for resolving complex problems and introducing new technologies.

The Hague Area, Netherlands

Worked on a large-scale migration from Windows 2000 systems to Windows XP + Server 2003.Responsible for the installation and distribution of 700+ workstations, application deployment and managing a migration team.

The Hague Area, Netherlands

responsible for managing a Server 2003 environment and decommissioning the obsolete Windows NT environment.

The Hague Area, Netherlands

Started on the helpdesk, then moved up to system engineer. Responsible for 2nd and 3rd line support and problem solving.

Citrix Ccee For Virtualization, Citrix Certified Enterprise Engineer

Passed exams: - 1Y0-A15: Engineering a Citrix Virtualization Solution - 1Y0-A05: Implementing Citrix XenApp 5.0 for Windows Server 2008.

Rpfcp 2010, Res Powerfuse 2010 Certified Professional

Passed exam: - ES0-004 RES Powerfuse 2010

Ramcp 2011, Res Automation Manager 2011 Certified Professional

Passed exam: ES0-005 RES Automation Manager 2011 Basic exam

Education record