• High-quality PHP and web-based software
  • Professional open-source development
  • Sharing knowledge in public talks
  • Professional consulting
  • Personal coaching

custom-tailored solutions by clue·engineering

Hi, my name is Christian Lück, I'm a maintainer of ReactPHP, public speaker and Software Engineer.

Together with my team, we are clue·engineering. We help planning, designing, developing and maintaining high-quality PHP and web-based projects.

If you need help realizing your projects, we're here to help! Check out our support page and let's get in touch!

Recent blog posts, articles and thoughts

Here are some of my recent blog posts and random ramblings. See also the full blog posts archive and below if you want to learn more about some of our projects. You may also find more on Twitter.

Two heads are better than one: Hello Dennis!

After several weeks of working together, it is time to introduce myself, Dennis. You may have seen our recent Open-Source Sustainability Report and may know why funding open-source development is important. One reason: clue·engineering is no longer a one-man show and Christian now has a co-pilot on the PHP journey.…

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For more blog posts, see also the full blog posts archive.

We work on high-quality PHP and web-based projects.

We're software engineers at heart. We're passionate, competent and experienced. We help planning, designing, developing and maintaining excellent software.

As an open-source enthusiast, we enable others building awesome projects. We care about high-quality, reliable projects and enjoy pushing the limits. For one, I'm a maintainer of ReactPHP, a ground-breaking, low-level library for event-driven programming in PHP. I also maintain a large number of open-source projects my own. If you're into numbers: My own projects have some million downloads on Packagist, a few million downloads on Docker Hub and some thousand stars on GitHub.

As a freelancer, we help my clients building excellent software. To us, software engineering is not about producing code. It's about providing value by helping build the right thing.

If you want to learn more about my projects, you may also check out my profile on GitHub. Need help with any of my projects? Get support! I also offer professional consulting, custom development services and issuing invoices for sponsorships of releases and for contributions.

Say Hello!

Email us if you think we should be working together on interesting projects.