Portrait of Raphael Stadler

IT architect and
system administrator

I work as a freelancer with strong hands-on experience in CI/CD automation & DevOps, server infrastructure & administration as well as IT security.

My deepest expertise is on Linux; Python is the main language I use for automation and integration — alongside other stacks when a project needs them.

Experience

How recent work clusters — tools and stacks named here are representative, not exhaustive.

Automation, delivery & platforms

Python, GitLab CI/CD, Git, Bash; Docker and Kubernetes; pipeline automation and release engineering. Also Java, PowerShell, C, Batch, and Assembly if necessary.

Infrastructure & operating systems

Arch Linux, Debian, Ubuntu; Proxmox; Windows Server. Reverse proxies and web fronts: HAProxy, Apache2, Nginx.

Data, observability & collaboration

MariaDB, PostgreSQL, Redis, InfluxDB. Grafana, Icinga2. Mail: Postfix, Dovecot, Rspamd. Nextcloud; Matrix (Synapse); PHP application stacks.

Security, networking & miscellaneous

IPv6, QUIC, TLS 1.3; GPG / PGP. Perimeter and host: WireGuard, iptables, fail2ban, ufw. Storage and sharing: ZFS, NFS, SMB.

Each icon links to the vendor’s primary site. Trademarks belong to their respective owners. SVG marks are from Simple Icons (MIT), stored locally.

Career

Partners

  • Rohde & Schwarz (2025–now)
  • ECS Engineering Consulting & Solutions GmbH (2025–now)

Employments

  • Working student @ Rohde & Schwarz (2020–2025)
  • Salesperson, computer department @ MediaMarktSaturn Salzburg (2019–2020)
  • Internships: conova Salzburg datacenter, Convention Center Salzburg, University of Salzburg

Education

  • Software engineering and internet computation (DI) @ TU Vienna (2025–now)
  • Engineering degree (Ing.) in electronics / electrotechnics @ Wirtschaftskammer Salzburg (2026)
  • Computer science (M.Sc., not finished), focus IT security @ FAU Erlangen–Nuremberg (2023–2025)
  • Computer science (B.Sc.) @ TU Munich (2020–2023)
  • Technical computer science and electronics @ HTL Salzburg (2015–2020)