Justin Tönjes
Work Package Lead
Experience
Jul 2022 - Present
3 years 1 monthGermany
Work Package Lead
Heraeus Consulting & IT Solutions GmbH
- Implementation of Omada Identity Cloud (SaaS)
- Configuration of interfaces in the SAP context
- Troubleshooting, SQL debugging
Jul 2022 - Present
3 years 1 monthGermany
Project Manager
Heraeus Consulting & IT Solutions GmbH
- Migration from Redwood Cronacle (on-prem) to Redwood RunMyJobs (PaaS)
- Managed the introduction of a PaaS solution for job scheduling and legacy system migration
- Demand management
- Project management
- Scheduling
- Creating documentation
- Risk management
- Coordination of project staff
- Vendor management
May 2022 - Present
3 years 3 monthsGermany
Operation of SAP Systems
Heraeus Consulting & IT Solutions GmbH
- Administration of heterogeneous SAP landscapes (on-premise, AWS IaaS)
- Database administration for SAP MaxDB and SAP HANA
- Hardening of SAP systems
- Configuration of single sign-on
- Incident management (ITIL)
- Interface configuration
- Project activities
- SAP updates and upgrades
Jan 2022 - Present
3 years 7 monthsGermany
Work Package Lead
REWE Systems
- Implemented SecurityBridge for SAP security
- Installed/configured an SAP system landscape with SecurityBridge add-on
- Installed various systems and acted as technical contact
- Configured SAP Fiori Launchpad and Fiori apps
- Configured single sign-on
- Configured interfaces
Nov 2021 - Present
3 years 9 monthsGermany
Operation of SAP Systems
REWE Systems
- Administration of heterogeneous SAP landscapes (on-premise, Google Cloud IaaS)
- Database administration for DB2 and SAP HANA
- Hardening of SAP systems
- Configuration of single sign-on
- Incident management (ITIL)
- Automation with shell, Python and SQL scripting (SAP LAMA SaaS)
- Project activities (SAP updates and upgrades)
Oct 2020 - Oct 2021
1 year 1 monthGermany
Project Team Member
EWE AG
- SAP S/4HANA implementation
- SAP Basis support for greenfield SAP S/4HANA rollout
- Installed various systems and served as technical contact
- Configured SAP Fiori Launchpad, Fiori apps and SAP Migration Cockpit
- Configured single sign-on
Sep 2020 - Oct 2020
2 monthsGermany
Work Package Lead
EWE AG
- Connected SAP HANA and BW to SAP Analytics Cloud (PaaS)
- Linked various BW systems and SAP HANA databases to the SAC
Jul 2020 - Oct 2021
1 year 4 monthsGermany
SAP Basis Team Lead
BTC IT Services GmbH
- Disciplinary and technical responsibility for 15 staff
- Managed various SAP projects
- Responsible for operations of heterogeneous SAP landscapes (ERP, SRM, IS-U, HCM, S/4HANA, BW/4HANA, XI/PI/PO, BW, HANA XSA, GRC, Mobile Engine, etc.)
- Customer liaison
- Vendor management
- Personnel leasing
- Contract management
- Nearshoring
Mar 2020 - Oct 2020
8 monthsGermany
Work Package Lead
EWE AG
- Built HA cluster
- Transformed existing SAP landscapes (SAP PI/PO) into a distributed system landscape
- Set up a cluster solution (Pacemaker, IBM TSAMP, DB2 HADR)
Jun 2019 - Sep 2019
4 monthsGermany
Work Package Lead
EWE AG
- SAP HANA XSC to XSA migration
- Technical execution of the migration from SAP HANA XSC to XSA
- Installed SAP HANA XSA
- Created spaces and organizations
- User administration (native SAP HANA and XSA)
- Installed SAP HANA XSA apps
- Administered SAP HANA XSA
Jun 2019 - Sep 2019
4 monthsGermany
Project Team Member / Project Manager
EWE AG
- OS migration
- Project management
- Demand management
- Scheduling
- Risk management
- Coordination of project staff
- Technical migration of all SAP systems from SLES 11 to SLES 12
- Filesystem migration to new servers
- DB native backup/restore
- Interface configuration
Mar 2019 - May 2019
3 monthsGermany
Work Package Lead
EWE AG
- SAP HANA upgrade
- Upgraded to HANA 2 with MDC introduction
- Updated the SAP HANA cockpit
Feb 2018 - Feb 2019
1 year 1 monthGermany
Work Package Lead
EWE AG
- Built HA cluster
- Transformed existing SAP landscapes (ERP, IS-U) into a distributed system landscape
- Set up a cluster solution (Pacemaker, IBM TSAMP, DB2 HADR)
Nov 2017 - Jan 2018
3 monthsGermany
Work Package Lead
EWE AG
- SAP HANA upgrade
- Upgraded to HANA 2 with MDC introduction
- Configured interfaces
- Installed SAP HANA cockpit
- Updated the SAP Landscape Transformation Server
Oct 2017 - Nov 2017
2 monthsGermany
Project Team Member
EWE AG
- EHP upgrade
- Release upgrade from SAP ERP 6 EHP 7 to EHP 8
- Stack calculation
- Coordination with business and development teams
- Ran SAP Update Manager and follow-up tasks
Dec 2016 - Aug 2017
9 monthsGermany
Work Package Lead
Thüringer Energie AG
- Introduced iMSB systems (IS-U)
- Installed an SAP IS-U landscape
- SAP and DB installation
- Configured single sign-on
- Set up monitoring (SAP Solution Manager, Icinga/Nagios)
- Created backup strategy
- Coordinated with business teams
- Configured transport management
- Configured interfaces
Oct 2016 - Aug 2017
11 monthsGermany
Work Package Lead
EWE AG
- Introduced SAP HANA
- Deployed native SAP HANA DB with XSA and XSC
- Replicated various tables from SAP and non-SAP sources for big data via SLT and SAP HANA SDI/SDA
Jul 2015 - Aug 2021
6 years 2 monthsGermany
Operation of SAP Systems
BTC IT Services GmbH
- Project activities
- SAP updates & upgrades
- Sub-project lead for SAP
- Change management (ITIL)
- Administration of heterogeneous SAP landscapes
- Configuration of single sign-on
- SLT replication server
- Monitoring (SAP Solution Manager, Icinga/Nagios)
- Incident management (ITIL)
- Automation with shell, Python and SQL scripting
- System copy manually or (partially) automated
- User administration
Summary
My career took me from a northern German IT service provider into self-employment. As a certified SAP technology consultant (formerly SAP Basis) and interim manager, I help you today achieve a successful project completion and smooth SAP operations. Since I’m interested in new technologies, I got involved with SAP HANA early on and now focus strongly on automation, IaaS, PaaS and SaaS. It’s always important to me to align my work with ITIL.
Languages
German
NativeCertifications & licenses
SAP HANA
SAP Basis Administration
SAP Technology Consultant
SAP
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