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I'm looking for a job! 📌


if you are looking for an experienced Linux system administrator, then you have come to the right place... I'm looking for a job!

I have more then 20 years of experience professionally working as Linux / UNIX system administrator and software developer. Most work was done using open source operating systems and tools.

I, for example, worked for the following companies: AirPlus (Lufthansa), B1 SYSTEMS, EOS.UPTRADE, HABA, Lotto24, Marquard & Bahls (Mabanaft, OIL! and Oiltanking), Phonostar, SAP, T-Systems and many more...

A list of regularly used software and tools, but I use a lot more stuff for my daily work:*

  • Automation & Configuration Management (Ansible, CI/CD, Foreman, Katello, Puppet, Satellite, Terraform)
  • BSD & UNIX, but very limited because Linux was always the primary used OS.
  • Containers & Virtualization (Docker, Kuberauthornetes (minikube), OpenStack, Qemu, Vagrant, Virtual Machine Manager, VirtualBox, VMware etc.)
  • Databases (Access, DataGrip, MariaDB, MySQL, ODBC, Oracle, PostgreSQL, SQL, SQLite)
  • Development & Programming (Anjuta, C, CLion, CMake, Flutter, GCC, GDB, Git, Gtk, IntelliJ IDEA, Java, JavaScript (jQuery), Lua, Make, Netbeans IDE, PyCharm, PHP (Symphony, WordPress etc.), Python (Django, Flask, Kivy, Nikola etc.), Ruby (Jekyll, Rails (basics))
  • Engineering (Bash, Ksh, SSH and Zsh)
  • Linux (Adelie, Alma, Alpine, Arch, Artix, Debian, CentOS, Gentoo, OpenWrt, Red Hat (Fedora / RHEL), SuSE (SEL / SLES), Ubuntu and some more distributions...)
  • Monitoring (Checkmk, Linspector, Nagios, Syslog, Zabbix)
  • Networking (iptables, Routing (basics), TCP/IP (basics))
  • Security (auditd, SELinux (basics), SIEM, Splunk)
  • Storage (NetApp, NFS, Samba/SMB)
  • Tools (Confluence, Jira, Office, Outlook, Teams, Zoom and many more...)
  • Web (Apache, CSS, HAProxy, HTML, Lighttpd, nginx etc.)

My daily tools: Linux (Alpine and Artix), Python, IntelliJ IDEA / PyCharm, Vim, Shell (Bash and Zsh), Git, Qemu, Docker, Netbeans IDE...

So, what am I looking for?

I am primarily looking for a remote job as a Linux system administrator, but software development is a great option to me too.

If you are interested in more information about me and my skills, take a look at the about page, the answers page or just contact me. I can send you a CV and will try to answer your questions or give you all other information you may want to know.

Keep in mind, I am living in North Frisia / Germany!

Permalink: https://hanez.org/job/

Passkey... now with touch button!

Hello all,

My Passkey project got an update. I am using a touch based button now. The code is all the same as before but Passkey is more comfortable to use now. Take a look at my first first post about Passkey for more information.

Passkey with touch button

More information will follow ASAP. I want to build a final device from these parts now... Maybe with a 3D printed enclosure to make it more professional... ;)

[UPDATE]: Renamed the project repository from "passkey" to "Passkey".

Permalink: https://hanez.org/2023/07/23/passkey-now-with-touch-button/

The Embedded Winter Challenge

The Embedded Winter Challenge

I got some embedded devices in the past weeks and are starting playing around with hardware since many years again. I do this just for fun, but I really build some useful devices sometimes. Take a look at my blog post about Passkey to see what I actually do.

Devices from the top left to the bottom right:

  • RFID-RC522 SPI based RFID Reader
  • MicroSD SPI based Card Reader
  • MCP2515 SPI based CAN Bus Shield
  • Raspberry Pi Pico RP2040 microcontroller device running MicroPython
  • Arduino Nano ATMega328 based device
  • OLED I²C based Display with SSD1306 Chip 128 x 64 Pixel
  • OLED I²C based Display Module 128 x 32 Pixel
  • Arduino Leonardo Pro Micro ATmega32U4 based device
  • Digispark ATTiny85 based device with micro USB port using the micronucleus bootloader
  • Digispark ATTiny85 based device with USB-A connector using micronucleus
  • RP2040-Zero Pico-Like MCU Board based on Raspberry Pi RP2040 microcontroller
  • CP2102 micro USB to UART TTL Module
  • AT24C256 I²C 256KB EEPROM memory

I own all of these devices more then once so the devices shown above do not all have pin headers soldered on them. It was looking nicer on the photo without headers... ;)

I am getting some more I²C devices in the next days! I am focussing on I²C devices because the I²C protocol is so easy to use, but SPI is interesting too.

For simple stuff I am using Arduino based devices but I really like the RP2040 based devices because I am very familiar with Python and running MicroPython makes so much sense to me. Also I like the possibility to run a REPL to interact with hardware interactively like a command shell. This is a lot of fun and debugging is a lot more easy too.

Permalink: https://hanez.org/2022/12/23/the-embedded-winter-challenge/


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