Jo Zapf – Mandatory Internship Application Development Berlin

Mandatory Internship for Application Development · Berlin

Intrinsic drive
with focus
on operational requirements
and reliability.

wanted!


· DevOps & infrastructure practice (self-hosted, 24/7 ops) · Software Engineering (in training → 02.2027)
I'm specializing into structured software engineering: 20+ years of cross-media production and Web-/CMS-Practice, backed by hands-on IT & network responsibility, through FIAE (IHK) training.

Internship Fact Sheet

  • Type Mandatory internship / "Betriebliche Erprobung" (FIAE – IHK)
  • Location preference Berlin · open to SMEs, the public sector, and enterprise · partial hybrid possible
  • Period 02 Jun 2026 → 29 Jan 2027
  • Work volume 960 hours (60-minute hours)
  • Probation 4 weeks (from start)
  • Compensation Unpaid for the company (per contract)
  • Vacation (planned) 16 days total
  • School blocks 31 Aug 2026 → 16 Sep 2026 · 26 Oct 2026 → 25 Nov 2026
    (dates may change)
  • Training scope and self-directed learning: Organization & work processes · data handling · customer-oriented processes · project management · application development (programming, testing, defect handling, support, documentation) · IHK mandatory final project (80 hours) including documentation

Snapshot

  • Bridging Dev (since 2025) ↔ Ops (since 2016): I bring solid hands-on experience in operations technology (OT) and system integration (SI) into my software engineering work. I work iteratively, with a focus on testing and documentation, with a strong focus on operational requirements—reproducibility, monitoring, backup/restore, and clear documentation.
  • Background since 1999: autodidactic work in project- & event-management, networks, digital cross-media production, Web-/CMS-Practice (Frontend/Template-Customizing, 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): building up Python/Java; 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 logging and notification at critical states.

Fast Scan

  • Web/CMS practice (client projects): Delivery and maintenance of small to mid-sized web projects — including CMS work (e.g., WordPress / TYPO3 in an editorial role), frontend/template work, polished CSS animations, and e.g. PHP version upgrades on production shop systems.
  • Hands-on Home-Lab Ops: I run on-prem Linux services with zero-trust access from outside: reproducible setups & deployments, monitoring/alerting, and segmented Borg backup orchestration with automated offline storage.
  • System integration & automation: shell, APIs, workflows, reproducible environments
  • DevOps foundations: Docker/Compose, Continuous Deployment (CI/CD, GitHub Actions), staged deployments, rollbacks (project-dependent), (CMS) web projects.
  • Security mindset: zero-trust-oriented thinking, least privilege, secrets handling, defense-in-depth
  • Platforms: Linux + Windows (incl. WSL where useful), Windows Server (basics)
  • Storage & Backup Ops: Synology in a business environment (administration & operations): access control & sharing, backup/restore, updates, and documented operational procedures.
Recent GitHub Projects

Languages

Python / training context / private projects / building up / FastAPI / monitoring & logging
JavaScript / training context / home-lab / building up
Shell (Bash) / home-lab / building up / system administration / automation of critical processes / logging / integrity checks / rotating archiving
Java / training context / private projects/ building up
SQL / training context
PHP / employer / freelance / legacy snippets

Frameworks & Tools

Next.js / Node.js / private projects / building up / currently static build / jozapf.de
Fragment-CMS / Build-Injection / private projects / building up / Next.js / Node.js / jozapf.de

Tests & Documentation

Javadoc / home-lab / private projects
Pydoc / home-lab / private projects
Github / home-lab / private projects / CodeQL / Dependabot
Material for MkDocs / home-lab / private projects / responsive Markdown System
Diagramms / training context / priv. projects / System and design structures using UML class diagrams / tracking requirements and error analysis / PlantUML / Mermaid / Kroki, etc.
PythonJavaSQLJSNext.jsComponent Diagrams

AV Systems

Event Tech / employer / structural setup of high-availability audio & video systems / routing / monitoring

Network

Enterprise Infrastructure / employer / Structural fiber optics & infrastructure setup / Documentation / Operations / Coordination of external parties / High availability (5G fallback) for B2B & B2C events up to 900 m² / 500 devices
Synology / employer/ ops / access management / process ownership / process automation / paperless office

Security

Networks / employer/ ops / subnet-based VLAN segmentation / deny by default
Video / CCTV / employer/ ops / PoE/IP cameras / 900 m² / concept / technical implementation / documentation
Zero-Trust / employer & home-lab / identity & access management / PKI / mTLS / MFA
LinuxWindowsLeast PrivilegeUnifiSynologymTLSPKIautomation

Systems

Virtualization / training context / home-lab / Hyper-V / Docker-Compose / VMware
Linux / home-lab / private projects / ops / hardening / monitoring / patching / backup
Windows / employer & home-lab / ops / patching / backup
Windows Server / training context

Versioning & Deployment

GitHub / Git / freelance / private projects / CI tests / versioning / rollbacks
GitHub Actions / freelance / private projects / CI/CD pipelines / SSH deploy
Staged Deployment / home-lab / private projects / develop → staging → production

Tests & Documentation

Javadoc / home-lab / private projects
Pydoc / home-lab / private projects
Github / home-lab / private projects / CodeQL / Dependabot
Material for MkDocs / home-lab / private projects / responsive Markdown System
Diagramms / training context / priv. projects / System and design structures using UML class diagrams / tracking requirements and error analysis / PlantUML / Mermaid / Kroki, etc.

Selfhosted Stack

Docker / Compose / home-lab / private projects / development & production environments / production-grade
Selfhosted Cloud / home-lab / mTLS zero-trust / WAF / defense in depth
Home Assistant / home-lab / IoT / Docker / MQTT / monitoring
GitActionsDockerSelfhostingIoT

AI & Workflows

MCP Server / home-lab / private projects / cloud / CI / API
LLM Integration / home-lab / private projects / on-premise / in preparation for autonomic business use case
CLI-Agents / Home-Lab / priv. Projekte/ Cloud / API / Development environment / Command Line

Secrets & Zero-Trust

Secrets Management / freelance / employer / private projects / least-privilege / runtime injection
MCPLLMLeast-PrivilegeSecrets ManagementZero-TrustAutonomic AI
Bootstrap / freelance / private projects / concept / implementation / responsive customizing / smaller static projects
WordPress / freelance / employer / private projects / B2B / B2C / concept / implementation / responsive customizing / small to mid-sized projects
Typo3 / freelance / private projects / editorial
BootstrapWordPressHTML/CSSUI/UX

Print / Web

Graphic Design / freelance / employer / private projects/ Photoshop / Illustrator / InDesign

Still / Motion / Post

Video / MoGraph / freelance / private projects/ After Effects / Premiere / C4D

Photo

Photography / freelance / employer / private projects/ event / location / people
Retouching / Image Editing / freelance / employer / private projects
PhotoshopIllustratorPremiereAfter EffectsB2B
Self-teaching / intrinsic / iterative / all phases
Motivation / Curiosity / Personal development / Intrinsic / Courage to fail
Problem Solving / pragmatic / through communication / experience-based
Precision / as a security principle
Systemic thinking / Resilience training / Evidence-based models / Reflection and design of interaction patterns, conflict resolution & team dynamics
Teamwork / through communication / inclusion / prioritizing goals
Team Leadership / by example / project mgmt. with cross-functional teams / Interface between mgmt. and team / solution orientation
Project ManagementProject ResponsibilityBudget ResponsibilityInitiativePrecision

"Everything you can imagine is real."


For questions about the internship, please reach out via the contact form.

recent GitHub projects

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