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JoZapf/README.md

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)
Professionalizing 20+ years of cross-media and web work, backed by hands-on IT responsibility, through FIAE (IHK)..

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: “First pain → clarity → freedom”
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

  • Bridge Dev ↔ Ops: I build and operate(d) various solutions learning by doing with production constraints in mind, autodidactic since 1999.
  • Proven responsibility: IT Lead (hands-on, technical) · external specialists coordination / Digital & Media (02/2020–10/2024) — 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; strongest value today is system integration + operations + automation.
  • 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

  • System integration & automation: glue code, APIs, workflows, reproducible environments, pragmatic runbooks
  • DevOps foundations: Docker/Compose, 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 under pressure

“Everything you can imagine is real.”

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

Pinned Loading

  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