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JoZapf/README.md

Deutsch ⬛🟥🟨

Jo Zapf

- Building Bridges: Dev ↔ Ops | Business ↔ Tech | transforming goals into solutions | FIAE (in training) -


DevOps-adjacent System Integration · Home-Lab Enthusiast · Software Engineering *(in training | IHK → 02.2027)*
I'm professionalizing: 20+ years of cross-media production and Web-/CMS-Practice (Frontend/Template-Development), backed by hands-on IT & network responsibility, through FIAE.

FIAE (IHK) in training Python building up Java building up DevOps and System Integration focus Linux and Windows Docker and Docker Compose GitHub Actions Zero Trust / Least Privilege System Integration IoT Automation


Intrinsic drive with focus on operational requirements and reliability
My personal drive for security turns complexity into clarity — and has repeatedly prevented critical failures in business operations.
Moving from preparation to leading and leaving reaction.

Snapshot

  • Bridging Dev (since 2025) ↔ Ops (since 2018): I bring solid hands-on experience in operations technology (OT) and system integration (SI) into my software engineering work. Most of my learning and building is self-directed, with a strong focus on operational requirements—reproducibility, monitoring, backup/restore, and clear documentation.

  • Background since 1999: Background since 1999: autodidactic work in project- & event-management, networks, digital cross-media production, Web-/CMS-Practice (Frontend/Template-Development, HTML/CSS, partially JS/PHP) and technical problem-solving.

  • Proven responsibility: IT Lead (hands-on, technical) · external specialists coordination / Digital & Media, network design, server/client ops, security & backup concepts, high-demand event/B2B/B2C setups.

  • Business ↔ Tech bridge: translated leadership/customer goals into implementable requirements and reliable operations.

  • Software engineering (in training): Python/Java building up; my strongest lever right now is DevOps via a CI/CD pipeline with continuous deployment, plus system integration (SI) + operations (OT) + automation (IoT/scripting/workflows).

  • Automation focus exemplary: security-driven ops automation in Shell/Bash — expanded to include API-based alerting (SMS/RCS) for for logging and notification at critical states.

Fast scan

  • Hands-on Home-Lab Ops: monitored on-prem Linux server (zero-trust access from the outside) and protected it with segmented Borg backup orchestration and automated offline storage.
  • System integration & automation: shell, APIs, workflows, reproducible environments, pragmatic runbooks.
  • DevOps foundations: Docker/Compose, Continuous Deployment (CI/CD, GitHub Actions), staged deployments, rollbacks (project-dependent)
  • Security mindset: zero-trust-oriented thinking, least privilege, secrets handling, defense-in-depth
  • Platforms: Linux + Windows (incl. WSL where useful), troubleshooting

Internship availability (IHK mandatory)

✅ **Open to a 6-month mandatory internship (Berlin)**
**02 Jun 2026 → 29 Jan 2027**


Click below, to check out details:

Internship Fact Sheet Internship dates

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  1. segmented-borg-backup-system segmented-borg-backup-system Public

    backup orchestration system for BorgBackup featuring: - 17 independent, testable segments - Profile-based configuration - - DB-Dump - Docker Start/Stop - Hardware power management (Shelly Plug) - S…

    Shell

  2. contact-form-abuse-prevention contact-form-abuse-prevention Public

    A production-ready, GDPR-compliant contact form system with comprehensive spam protection, extended logging, IP blocklist management, domain blacklist, and automated anonymization.

    PHP

  3. Java-Directory-Tree-2-html Java-Directory-Tree-2-html Public

    learning by doing -> Generate an interactive HTML directory view from any folder through click on a executable .jar file, including a file-type stats table and a list of files without extensions.

    Java

  4. Zero-Trust-Selfhosted-Cloud-Multi-Layer-Edge-to-Origin-Security-Flow-Defense-Architecture Zero-Trust-Selfhosted-Cloud-Multi-Layer-Edge-to-Origin-Security-Flow-Defense-Architecture Public

    Zero-Trust access for self-hosted cloud behind Cloudflare: proxied DNS, edge mTLS (client cert + serial allowlist), Cloudflare Access (OTP), egress-only Tunnel → Nginx, Docker-segmented cloud. Deny…

  5. jozapf_de jozapf_de Public

    Migrated from containerized static Bootstrap to Next.js/Node.js static site generator (SSG) with TypeScript, automated versioning, and CI/CD deployment

    PHP

  6. EKMP-C4-arch-containerized-visualization-environment EKMP-C4-arch-containerized-visualization-environment Public

    learning by doing -> EKMP-C4-arch - Excalidraw, Kroki, Mermaid, PlantUML Visualization Architecture - ist eine vollständig lokale containerisierte Lösung für Architektur-Visualisierung und -Dokumen…

    JavaScript 1