⏳ The Beginning
Raffael Willems, born in the eighties in Germany, Europe and based in Blieskastel.
My enthusiasm for computers began with an Atari ST and the Ommikron BASIC programming language.
Later I continued with an IBM Model 30 286/DOS6.2 with Quickbasic.
In the 2000s, I was on the Internet with a US Robotics USR3453B modem. Windows was my daily companion.
Around 2007 I started to get involved with Linux. Not as a desktop but as a server because
I didn't really find it usable as a desktop (I had no idea), first Suse then Mandriva. a little later Fedora. Around 2011 I ended up with Debian.
From the beginning of 2013, I used Fedora with XFCE as my desktop environment because the recently released Windows 8 was simply terrible.
I don't remember exactly when I compiled my first DWM but Kai Hendry got me on the track of the Tiling Window Manager. Here are the Videos DWM Playlist
after this experience, I dared to try something bigger and my pacman.log 😀 says i installed my currently daily driver on 2016-10-06
💼 Work Experience
Here are a list of things i have done over the years. It contains only the Milestones
| Year | Jobtitle/Milestones |
|---|---|
| 09/2025-now | Head of IT @ Scheer Business Services |
| Merging im-c and Scheer to One Tenant (MTO sucks) | |
| - MDM, Endpoints, Servers, IDP, Exchange, Sharepoint, Teams, licenses, ... | |
| Deploy new Asset Management to all Companies | |
| Atlassian Cloud Migration to new Tenant | |
| Process Consolidation Phase IN, Security, Compliance, ... | |
| ... | |
| 2021-08/2025 | Head of IT @ Scheer imc |
| Main responsible for IT Procurement | |
| Contributor ISO-27001 | |
| Providing and maintaining DevOps tools (Git, Jenkins, Sonarqube, Defect Dojo, ...) | |
| Providing and maintaining K8s | |
| Planning, implementation Intune MDM | |
| Setup, Planning new HA Cluster | |
| Migration of bare Metal to VM | |
| Setup, Maintain Postfix MTA Cluster for Customers Worldwide mx1 mx2 mx3 mx4 | |
| DMARC, DKIM, Rollout internal and for Customers | |
| Postmaster | |
| Setup, Maintain,implement Icinga2 for all Internal IT-Services | |
| Setup ELK for central Log Collection and Analyses with Kibana | |
| Setup ECK (Elastic on K8s) for central Log Collection and Analyses of Customers Systems | |
| Containerization services with Docker/Compose for simplified administration | |
| 2011-2021 | IT-Systemadministrator @ RVI GmbH |
| Planning, implementation of a new DMS (Migration from Easy to d.3ecm) | |
| Migration of existing WSS to Sharepoint 2013 | |
| Setup, implementation of Typo3 (Website) | |
| Exchange onPrem to Office365 Migration | |
| Development PlanManagementServer (PlanMS) | |
| Planning, implementation of CTI Solution (Estos Procall) | |
| Mainly responsible for export and validation of customers and master data from GAP Group Immotion | |
| Author of Export scripts (SQL,T-SQL) for Data migration to SAP R3 | |
| Migration from Sharepoint 2013 Application to Salesforce | |
| DSGVO Rollout | |
| 2009-2011 | IT-Systemadministrator @ Fresenius Medical Care |
| Maintain TDMS (Therapy Data Management System) | |
| Setup Healthcare Networks | |
| Customer Support/Helpdesk | |
| 2003-2009 | IT-Technician @ Froehlich & Walter GmbH Saarbrücken |
| Trainee to IT-Technician | |
| Build Desktop Computers | |
| Maintenance of Customer IT-Systems |
♟️ Expertise
ELK (Elastic Logstash Kibana), Elasticsearch ISO 27001 Virtualization PROXMOX KVM HyperV VMWare Docker Kubernetes Cloud AWS Azure MS-500 IT-Operations IPA Icinga Networking CCNA Cisco IOS Routing VPN (S2S, SSL, IPSEC,...) Linux (Arch, Debian, AL2023, AL2, Redheat, Fedora, ...) Storage HP-MSA Ceph ZFS SAN Database MSSQL Server T-SQL Postgres MariaDB MySQL Mail MS-Exchange Postfix haproxy git API's (MS-Graph, 3CX, Atlassian,K8s,git,...) Microsoft Active-Directory Windows Server 2xxx Leadership C-Level Consulting IT-Strategie Cost planning / Budgeting Licenses Teamplayer Management
