I've been doing technical blogging for more than a decade. My career has been focussed mostly on Linux servers, PHP development and management.

If you need help with a technical problem, I can help as an independent consultant. Here's what I'm good at.

What can I do?

  • Linux
    • Servers (RHEL & CentOS, Debian & Ubuntu)
    • Varnish (I maintain the popular Varnish baselines used worldwide)
    • Webservers like Apache, Nginx, Lighttpd, Caddy, ...
    • Database servers like MySQL / MariaDB and limited experience with PostgreSQL
    • Caching technologies like Redis
    • Modern PHP (7.x and higher)
    • High availability setups, cloud & on-prem
    • Scaling your application beyond a single server (load balancing, failover, scale-out, horizontal scaling, ...)
    • Server security
  • Development
    • PHP
    • Architecture & design
    • Implementing caching strategies
    • UI/UX
  • Product development
    • Brainstorming features
    • Determining priorities to ship faster
    • Sharing lessons learned building my own SaaS projects
  • Technical writing
    • Blogpost on technical topics (any of the above)
    • Documentation for developers
  • Educational content
    • Group lessons on any of the topics above
    • 1-on-1 teaching
    • Public speaking & conference speaking

I master several low-level protocols like DNS, HTTP & TLS.

Here's my LinkedIn profile with several recommendations (sorry for the #HumbleBrag, but I'm trying to prove I'm a trustworthy guy. 🤗 ).

How to reach me?

If you're interested in working together, reach out via If you prefer other communication methods, have a look at my contact page.

We can schedule a video call to talk about the challenge or problem you're facing and how I can help.

If you have an acute problem or question, I'll most likely be able to help out.