Resume: Dominik Wombacher

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Contact

Address:Neumuehlstr. 15, 65510 Huenstetten, Germany
Website:https://dominik.wombacher.cc
Email:dominik@wombacher.cc
Matrix:@wombelix:matrix.org
Github:wombelix
LinkedIn:dominik-wombacher
Languages:English (fluent), German (native)

Personal

  • Enjoying my side projects and open source contribution
  • Troubleshooting and solving tricky, almost unsolvable issues
  • Learning new things and improving Skills
  • Spending time with my family and my dog

Summary

My current Position is Principal Engineer and Head of Infrastructure Operations at NTT Germany, Business Unit MAN. I'm an Open Source Enthusiast and Contributor, Dog Person, Passionate Engineer who loves solving tricky issues and always eager to learn new things. My professional career started in 2002 and has always been IT-centric, distinguished by broad knowledge of different technologies and fields. I'm responsible for the IT & Datacenter Infrastructure (Network, Compute, Storage, Hypervisor, Operating System) as well as Lead of the Operations Team located in Germany and Czechia. Adopting new Technologies and DevOps paradigm, Automation, Programming and Mentorship are important parts of his day-to-day business.

  • 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: Principal Engineer & Head of Infrastructure Operations | Permanent
Company: NTT Germany AG & Co. KG | Bad Homburg
Business Unit: MAN
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
Business Unit: MAN
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
Business Unit: MAN
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

08/2022:SUSE Sales Specialist & SUSE Technical Sales Specialist in SUSE NeuVector
07/2022:Microsoft Certified: Azure Administrator
07/2022:AWS Certified Cloud Practitioner
07/2022:Microsoft Certified: Azure Fundamentals
06/2022:SUSE Partner Support Accreditation - SUSE Linux Enterprise Server
04/2022:SUSE Sales Specialist & SUSE Technical Sales Specialist in SLES, SLES for SAP, SUSE Manager and SUSE Rancher
09/2021:SUSE Certified Administrator in SUSE Manager 4
09/2021:Red Hat Certified Specialist in Linux Diagnostics and Troubleshooting
06/2021:Red Hat Certified Specialist in Advanced Automation: Ansible Best Practices - Ansible 2.8, Tower 3.5 & Enterprise Linux 8
05/2021:Red Hat Certified Engineer - Ansible 2.8 & Enterprise Linux 8
05/2021:Red Hat Certified System Administrator - Enterprise Linux 8
11/2020:SAP Certified Technology Associate - System Administration (SAP ASE) with SAP NetWeaver 7.5
11/2020:SAP Certified Technology Associate - System Administration (Oracle DB) with SAP NetWeaver 7.5
10/2020:NetApp Certified Storage Installation Engineer, ONTAP (NCSIE)
10/2020:NetApp Certified Technology Associate (NCTA)
10/2020:SAP Certified Technology Associate - System Administration (SAP Max DB) with SAP NetWeaver 7.5
02/2020:Understanding of Cisco Network Devices - Level 200
05/2020:SUSE Certified Engineer (SCE) in Enterprise Linux 12
11/2019:SAP Certified Technology Associate - System Administration (SAP HANA) with SAP NetWeaver 7.5
10/2019:SAP Certified Technology Associate - OS/DB Migration for SAP NetWeaver 7.52
09/2019:Linux Professional Institute LPIC-1
08/2019:Cisco Certified Network Associate Routing and Switching (CCNA)
06/2019:Cisco Certified Entry Networking Technician (CCENT)
06/2019:ITIL Foundation v4 Certificate in IT Service Management
08/2019:SUSE Certified Administrator (SCA) in Enterprise Linux 12
02/2019:VMware vSphere 6.5 Foundations
01/2019:CyberArk Certified Trustee - Level 1
12/2018:SUSE Certified Administrator (SCA) in Systems Management / SUSE Manager 3
02/2015:Securepoint UTM Advanced Certified Engineer Platinum Level
07/2014:Microsoft Certified Professional (Exam 410 - Windows Server 2012)
04/2014:Securepoint UMA Certified Engineer Gold Level
02/2014:Auerswald PBX Level 3
11/2013:IHK Aschaffenburg Ordinance on Aptitude of Instructors (Ausbildereignungspruefung)
04/2013:Microsoft Certified Technology Specialist (SBS 2011)
10/2012:Securepoint Certified UTM Engineer Gold Level
10/2012:Securepoint Certified UTM Engineer Silver Level
10/2012:Securepoint UTM Network Expert Bronze Level
08/2009:Agfeo PBX Smart Home (WAC / EIB / KNX)
10/2008:Agfeo PBX ISDN over IP
08/2008:Agfeo PBX Gold Level
06/2008:Agfeo PBX Silver Level
04/2008:Agfeo PBX Bronze Level

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