Web Developer & SysAdmin / DevOps · Greece 🇬🇷
I build the applications — and the infrastructure they run on.
I started out building websites in WordPress. Then I got curious about what happens after the deploy — panels, SSH, mail queues, DNS, firewalls — and never really came back. Today I work as a freelancer on both sides of the line: I build the apps and sites, and I run the servers they live on.
Most of my work sits somewhere in web hosting: Linux servers, Nginx, Docker, mail infrastructure and DNS — plus the Laravel and WordPress applications on top.
- 🧱 Applications — Laravel apps, WordPress/WooCommerce plugins, custom websites
- ⚙️ Infrastructure — Linux server administration, Nginx/Caddy, Docker stacks, control panels
- 📬 Mail & DNS — SPF / DKIM / DMARC, PTR & FCrDNS, DNSBL troubleshooting, IMAP migrations
- 🛡️ Security — server hardening, WAF & rate-limiting rules, brute-force mitigation, TLS
- 🛠️ Tooling — CLI tools in Go and Bash for DNS, mail, TLS and domain diagnostics
- 📚 Writing — open technical guides (many in Greek) on hosting, SSH and server security
Languages
Application development
Systems & hosting
Panels, mail & security
Daily driver
- Kyklos — a Laravel-based hosting CRM; a modern take on WHMCS / Blesta
- sek — a cloud CLI toolkit in Go: DNS, subdomains, certificates, WHOIS and port scanning in one binary
- Email hosting infrastructure — mail nodes on Hetzner with a dedicated outbound relay strategy
- chriskarabinis.gr — my site, on a custom Laravel framework with GSAP scroll animations
Open to hosting engineer / systems administrator roles.