Software Engineering skills
System Engineering skills
15+ years server administrator experience in Linux and Windows Server environments with a multitude of different technologies and applications.
I have built and run a webhosting and a VPN service: Joostwebhost & WifiMask VPN.
My experience helps me to connect the dots quickly and implement new technologies fast.
Besides working on longer term development projects I like to spend my free time cycling, reading, playing the guitar and piano or work on my car to keep it on the road.
Projects as a freelancer:
• Implementation of account configuration, CardDAV based contact synchronisation and rebranding of a Linphone based VoIP app (iOS & Android) for a Dutch VoIP provider.
• Investigate and solve a reconnecting bug in a VPN app (iOS & macOS) for a Dutch non-profit organisation.
• Bitcoin Lightning Network node installation, management & support.
WifiMask VPN is a fast VPN and ad/malware blocker.
Creating WifiMask VPN involved designing, building, securing & maintaining the Linux server based infrastructure, iOS & macOS app development, front-end & back-end web development.
Through building WifiMask VPN I obtained in-depth knowledge of many different technologies including cryptography, app development, security, fire-walling, load-balancing/failover, automation, monitoring, alerting, logging, webservers, databases, networking and frontend & backend web development.
Joostwebhost sells webhosting, email hosting & domainnames.
Over the years I've implemented many different technologies to keep the customers websites online and fast at all times.
I have gained experience with webservers, databases, caching, automation, migrations, monitoring, alerting, logging, web development, cryptography, networking, fire-walling, security and load-balancing/failover.
CloudVPS is a leading cloud provider in the Netherlands with a focus on Linux & Windows VPS servers.
I was employee #12, which means I got and took lots of opportunities and responsibilities, I've experienced an exponential learning curve and it was a great stepping stone to starting my own business.
I was tasked with building, maintaining and supporting Linux and Windows server & network configurations and got familiar with many different technologies including virtualization, load-balancing/failover, monitoring, alerting, logging, firewalling, security, webservers, databases, networking, hardware & datacenter infrastructure.
At the end of this invaluable experience I decided it was time for me to take the leap, follow my dream of building my own businesses and work full-time on WifiMask VPN and Joostwebhost, while taking on ocassional freelance assignments.
Through Sogeti I was subcontracted to several clients from a wide range of industries. I got to experience many different technologies within many different environments & teams and took on helpdesk support, test engineering and system administrator roles.
I've received a few years higher level IT education (AMBI), but I am mostly
The internet, my curiosoty and my own businesses & projects are helping me to stay on top of this quickly
Earlier in my career I got my Microsoft Certified System Administrator and Linux Professional Institute certificates.