The Wombelix Post

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Personal

• Enjoying my side projects and open source contribution
• Troubleshooting and solving tricky / "unresolvable" issues
• Learning new things and improving Skills
• Spending time with my family and my dogs

Summary

• Since 2002 experience in IT support, engineering, consulting
• 2nd and 3rd level support
• Project and people Management
• ITIL based Operations, Incident and Change handling
• DevOps, Automation and Software development
• Virtualization, High-Availability and Storage
• Datacenter, Hosting and IT-Outsourcing
• Various certifications from Red Hat, SUSE, SAP, Cisco, NetApp and others
• Quick comprehension, team worker, conscientious, service and solution oriented

Job History

Focus on my permanent Position with NTT Germany since March 2019

August 2020 - present

Position: Head of Operations (L4) | Permanent

Company: NTT Germany AG & Co. KG | Bad Homburg

Sector: Network & IT Services

Summary:

• Datacenter Infrastructure responsibility
• Lead of Operations Team (L1, L2, L3) located in DE and CZ
• Support and coordinate global delivery units
• Acting as emergency support and escalation contact
• Mentoring, knowledge transfer and Documentation
• Insourcing, Budget Planning and Cost Optimization
• Configuration and Patch Management
• Automation and Development
• ITIL based Ticket and Incident handling
• Establishing and optimize operational processes

Technologies, Products, Tools:

• VMware vSphere, Cisco (UCS, Nexus, Catalyst, MDS, ASR, ASA), F5 Big-IP LTM, NetApp (ONTAP 9 - FAS, AFF, Metro Cluster), SAP HANA TDI
• SUSE SLES 12 / 15, Red Hat 7 / 8, Oracle Linux 7 / 8, openSUSE Leap 15, openSUSE MicroOS/ JeOS, Windows Server 2012 R2 / 2016
• SUSE Manager 4 / Uyuni, Red Hat Satellite 6, AWX, Gitea, Jenkins, iTop / TeemIP, TeamPass, NetBox, Observium, Grafana, Docker, Kubernetes
• NetApp SnapManager / SnapCenter (Oracle Database, SAP HANA Database), Commvault (Files, Oracle Database, SAP HANA Database, Microsoft SQL)
• Sophos Anti-Virus, CyberArk Privileged Access Manager, Cisco vWSA, Cisco ISE, Tufin, Microsoft Active Directory and DNS
• Python, Ansible, Scripting (Bash, Powershell), F5 iRules, RPM Packaging, TCPdump / Wireshark, BGP, HSRP, LACP, IPSec VPN
• Microsoft Azure, Jira, Confluence, Service-Now, HP Service Center, Cisco UCS Manager / Central, Sharepoint, BMC Control-M, Seal Systems Plossys

March 2019 - July 2020

Position: Lead Engineer Operations (L3) | Permanent

Company: NTT Germany AG & Co. KG (formerly Dimension Data) | Bad Homburg

Sector: Network & IT Services

Summary:

• ITIL based Operations Support, Ticket and Incident handling
• Establishing and optimize operational and deployment processes
• Datacenter Infrastructure Support, Optimization and Architecture
• Knowledge transfer and Documentation
• Configuration and Patch Management
• Automation and Development
• 24/7 On-Call support

Technologies, Products, Tools:

• VMware vSphere, Cisco (UCS, Nexus, Catalyst, MDS, ASR, ASA), F5 Big-IP LTM, NetApp (ONTAP 9 - FAS, AFF, Metro Cluster), SAP HANA TDI
• SUSE SLES 12 / 15, Red Hat 7, Oracle Linux 7, Windows Server 2012 R2 / 2016
• SUSE Manager 4 / Uyuni, Red Hat Satellite 6, Jenkins, iTop / TeemIP, TeamPass, Observium, Grafana
• NetApp SnapManager (Oracle Database), Commvault (Files, Oracle Database, SAP HANA Database, Microsoft SQL)
• Sophos Anti-Virus, CyberArk Privileged Access Manager, Cisco vWSA, Cisco ISE, Tufin, Microsoft Active Directory and DNS
• Python, Ansible, Scripting (Bash, Powershell), F5 iRules, TCPdump / Wireshark, BGP, HSRP, LACP, IPSec VPN
• Jira, Confluence, Service-Now, HP Service Center, Cisco UCS Manager / Central, Sharepoint

Januar 2007 - present

Position: Self-Employed / Company owner / Freelancer

Company: various

Sector: various

Summary:

• 2nd / 3rd Level Support
• ITIL / Operations
• DevOps / Software Engineering
• Virtualization / Storage
• Datacenter / Hosting
• IT Outsourcing
• Onsite Support
• Consulting
• Project Management
• People Management

Technologies, Products, Tools:

• openSUSE (42, Leap 15, Tumbleweed - MicroOS, JeOS), FreeBSD (12), Debian (7 - 10), Ubuntu (16.04, 18.04), CentOS (7), Oracle Linux (7 / 8), Red Hat Enterprise Linux (7 / 8), Windows Server (2000 - 2016), Windows (2000 - 10)
• Proxmox, KVM, FreeBSD Jails, Docker, Podman, Kubernetes (k8s, k3s), LXC, VMware vSphere, Microsoft Hyper-V
• MySQL / MariaDB, PostgreSQL, SQLite, Microsoft SQL, Bareos, Icinga, Check_MK, Microsoft Remote Desktop
• Python, Ansible, Scripting (Bash, PowerShell), PHP, HTML, CSS, JavaScript, Go, C#, VB.Net, Java, Make
• Wireguard, IPSec, OpenVPN, Puppet / Foreman, DRBD, Pacemaker, Corosync, DHCP, DNS (Bind, PowerDNS, Windows)
• Microsoft Exchange (2000 - 2013), Stratus everRun, OTRS, OPSI, Securepoint UTM, JTL Wawi, Lexware, Datev, MailStore
• Git, Gitea, Gitlab, Github, Pagure, Cgit, Open Build Service, RPM Packaging, FreeBSD Ports, Container Images (OCI)
• VIM, Screen / Tmux, Eclipse, Visual Studio Code / VSCodium

July 2006 - July 2007

Position: Systemadministrator

Company: IT-Service M+W Grossostheim GmbH

Sector: IT & Telecommunication

Short Summary

• 2nd Level Support
• ITIL / Operations
• IT Outsourcing

August 2003 - July 2006

Position: Apprentice Computer Science Expert (System Integration)

Company: IT-Service M+W Grosostheim GmbH

Sector: IT & Telecommunication

Short Summary

• 1st / 2nd Level Support
• End-User Helpdesk
• Onsite Support

January 2002 - July 2003

Position: Support Engineer

Company: Prosol Spraytechnik GmbH | Kleinostheim

Sector: Aerosol manufacturing

Short Summary

• 1st Level Support
• End-User Helpdesk
• Onsite Support

Project History

Extract from the last few years

August 2016 - February 2019

Position: Service Delivery Support Engineer (L2) | Freelancer

Company: Dimension Data Germany AG & Co. KG | Bad Homburg

Sector: Network & IT Services

Summary:

• ITIL based Operations Support, Ticket and Incident handling
• Establishing and optimize operational and deployment processes
• Datacenter Infrastructure Support, Optimization and Architecture
• Knowledge transfer and Documentation
• Configuration and Patch Management
• Automation and Development
• 24/7 On-Call support

Technologies, Products, Tools:

• VMware vSphere, Cisco (UCS, Nexus, Catalyst, MDS, ASR, ASA), F5 Big-IP LTM, NetApp (ONTAP 9 - FAS, AFF, Metro Cluster), SAP HANA TDI
• SUSE SLES 11 / 12, Red Hat 7, Oracle Linux 7, Windows Server 2008 R2 / 2012 R2 / 2016
• SUSE Manager 3, Red Hat Satellite 6, Jenkins, TeemIP, TeamPass, Observium
• NetApp SnapManager (Oracle Database), Commvault (Files, Oracle Database, SAP HANA Database, Microsoft SQL)
• Sophos Anti-Virus, CyberArk Privileged Access Manager, Cisco vWSA, Cisco ISE, Tufin, Microsoft Active Directory and DNS
• Python, Ansible, Scripting (Bash, Powershell), F5 iRules, TCPdump / Wireshark, BGP, HSRP, LACP, IPSec VPN
• Jira, Confluence, Service-Now, HP Service Center, Cisco UCS Manager / Central, Sharepoint

June 2015 - August 2015

Position: Datacenter Engineer, Consultant | Freelancer

Company: CGM Deutschland AG | Koblenz

Sector: Medical IT Services

Short Summary

• Monitoring System (Check_MK)
• Linux High-Availability Cluster (Ubuntu, Pacemaker, Corosync, DRBD)
• Configuration Management (Puppet / Foreman)
• Backup (Bareos)

February 2015 - May 2015

Position: Datacenter Engineer, Project Management | CEO Wombacher.IT GmbH

Company: JTL-Software GmbH | Remote

Sector: Independent Software Vendor (ISV)

Short Summary

• Proof of Concept & Project Management: Private Cloud Hosting for End-User
• Private Cloud Environment (Microsoft Hyper-V, Windows Server 2012 R2, Microsoft SQL Server 2012 Express and Remote Desktop Services)
• Deployment Automation with Ansible and Powershell

November 2014 - January 2015

Position: Consultant, Project Manager | CEO Wombacher.IT GmbH

Company: MAIREC Edelmetall GmbH | Alzenau

Sector: precious metals trade

Short Summary

• Physical to Virtual Migration (Stratus everRun fault-tolerant Cluster)
• Deployment and Migration (Microsoft Windows 2012 R2, Exchange Server 2013, Sharepoint, CentOS, Ubuntu, OTRS, OPSI)
• Migration of ERP System based on RedHat Linux to CentOS
• Firewall High-availability Cluster (Securepoint)
• CMDB and Ticketsystem (OTRS)
• Software Rollout (OPSI)
• ITIL based Support

Certifications