Profile image of MartinWierenga
Flag of Netherlands Appingedam, Netherlands
Member since February 21, 2013
0 Recommendations


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Hi, I'm a experienced and skilled system administrator. Starting from Windows 2003 Server till the most recent Windows Server 2016. Linux operating systems, including webservers, database servers, (reverse) proxies, caching engines and more. I have extensive knowledge of the following Microsoft server and desktop technologies: - Active Directory (AD and ADFS) + Group Policy - DNS - DHCP - File and Storage services - Internet Information Service - Hyper-V - Windows Deployment service + Deployment Toolkit - Windows XP/Vista/7/8.1/10 - Exchange server - SharePoint Server + FAST - Internet Security and Acceleration server and TMG - System Center 2012-2016 - Office365 and other Microsoft Online Services - Windows Intune - Small Business Server and Essentials Server Other technologies: - 3CX Hosting Partner - ESET Authorised Partner - Microsoft Partner - SiteLock Partner - Dell Partner - SSL Reseller - cPanel - WordPress - Magento - Odoo - PHP/jQuery/HTML5
$39 USD/hr
10 reviews
  • 62%Jobs Completed
  • 100%On Budget
  • 100%On Time
  • 20%Repeat Hire Rate


Recent Reviews

  • image of panel1 Transform Proxmox VMs to Windows Hyper V €30.00 EUR

    “A good idear to work with him good expertise verry patient...nice to meet you”

  • image of B2M Server expert $48.00 USD

    “Best freelancer and system administrator. He knows everything about server etc.”

  • image of chrisdempsey Convert .htaccess to web.config £18.00 GBP

    “Code submitted does not work, Freelancer acknowledged this but has failed to submit corrections and has not been in touch for a week. Project is to translate 8 lines of code, it's been 2 weeks. Not good enough.”

  • image of MyJobEurope Translation into Dutch (Nederlands) [Sealed]

    “The project was not completed. The freelancer promised several times to deliver the translations at the end of the day, and then finally disappeared completely. No communication was possible. On day 4 of the dispute, they stated that the translations were done, but still accepted the dispute without delivering.”

  • image of hurleysltd SMTP Emailer set up on Windows VPS $35.00 USD

    “Very professional. Extremely helpful. Great guy. Thanks Martin”

  • image of wakerunner5 Setup SMTP server on a Server 2008 R2 computer $55.00 USD

    “Great server admin! Will definitely use his services again.”


ServiceDesk Representative

Jan 2007 - Feb 2008 (1 year)

ServiceDesk (second-line) representative at a large ISP in The Netherlands. Supporting private customers with triple-play products that can't be solved directly by (first-line) Helpdesk. Internet, TV and VoIP-telephony. Troubleshooting connection problems with internet, TV, VoIP and wireless. Troubleshooting connection problems at ISP network level, configuring DSLams and monitoring full network in the weekends and outside office hours (in shifts).

Helpdesk Representative

Jan 2006 - Jan 2007 (1 year)

Helpdesk representative at the largest telecom company in The Netherlands. Support private customers with triple-play product. Internet, TV and VoIP-telephony. Troubleshooting connection problems with internet, TV, VoIP and wireless. Semi-floor manager for other callcenter agents to support them with advanced questions, priority problems and learning them the basics when recently joined. From this company to another ISP because of higher position (second-line) ServiceDesk.

Network Administrator

Feb 2005 - Oct 2005 (8 months)

Comptershop in The Netherlands. First Network Admin working for business clients of the computershop. Besides that when the oppertunatie was there sales, advice and repair for private customers in the shop.


MBO ICT-Administration

1997 - 2001 (4 years)


3CX Certified Engineer (2013)


3CX Phone System Certified Engineer


Various Forums

Various posts on forums like Microsoft Technet and Social, Spiceworks, 3CX, etc.


  • Numeracy 1
  • US English Level 1
  • Cloud Computing 1


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