Me at my desk

Hi, I’m Jan

A pragmatic software engineer from Germany. PHP and Symfony veteran with a preference for DevOps, testing, and code quality.

Extra ingredients: software architecture, mentoring, consulting, development lead, team lead, people lead, python, IoT

I build systems using PHP/Symfony, Docker/Kubernetes, and modern CI/CD practices, while exploring how AI/LLM can streamline development and operations.

  • 🔭 I’m currently working with PHP, Symfony, containerized systems, Kafka, and Caddy.

  • 🌱 I’m currently expanding my capabilities in AI tooling and LLM workflows.

  • 🎹 In my free time, I enjoy bread baking, learning piano, and the harmonica.

  • 💬 Ask me about PHP, Symfony, software engineering, security, observability, DevOps, containerization, Caddy, PHPUnit/testing, and Linux.

  • 📫 How to reach me: jan@markmann.dev

  • 📄 Want the full story? Here’s my resume: https://markmann.work/resume/

  • ⚡ Fun fact: in theory, music is pure logic.

Connect with me:

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Tech Stack:

PHP Symfony API Platform Doctrine Composer PHPUnit Docker Kubernetes Harbor Helm Rancher Google Cloud AWS Ansible MariaDB MySQL PostgreSQL Redis InfluxDB RabbitMQ MongoDB Kafka Git Gitea GitHub Actions GitLab Jira Grafana Backstage Caddy Linux Zsh LM Studio Cline OpenAI Codex Python VS Code