NetBIOS Experts in Germany

As part of the preparation and operational support of a business succession:

• Company analysis: Analysis of the overall economic, organizational and structural situation (current state, strengths/weaknesses, risk potentials)
• Process analysis: Recording and documentation of all relevant business processes (BPMN, UML) in the areas of management, finance, procurement, sales and operations
• Process optimization: Identification of weaknesses and inefficiencies, development and operational implementation of improvement measures
• Stakeholder management: Identification and analysis of all relevant internal and external stakeholders; structured communication and coordination with previous and future owners, shareholders and employees
• Change management: Supporting the workforce and management through the handover process; building acceptance and trust among all participants
• Governance & documentation: Creation and handover of structured operation manuals, process documentation and organizational handbook for the new business owner
• Risk & vulnerability analysis: Assessment of operational and strategic risks in the handover process and development of recommended actions
• Operational support: Interim takeover of leadership tasks; ensuring business continuity during the transition phase

• The client is undergoing a comprehensive transformation. All SAP ECC landscapes worldwide are being migrated to SAP S/4HANA, with the goal of introducing a global standard template.

• The program also includes the migration and modernization initiative "RISE with SAP", which may involve migrating selected country installations to the SAP Private Cloud.

• On the stakeholder side, the program's reporting line extends up to the company's board and the implementation partner's board.

• Fiserv Germany's ERP landscape currently includes several non-standard SAP tools and applications that extend the ECC environment's functionality and often integrate with downstream systems. As part of the move to SAP S/4HANA, it is essential to assess the core functionality, integration points, and future viability of these applications to determine their alignment with the target architecture.

• The focus of the role is to provide expert advice and assessment to define the scope, strategy, and roadmap for migrating Fiserv Germany's SAP ECC system to SAP S/4HANA.

• SAP's recommended best practices are followed, and a structured approach is used to ensure a smooth transition with minimal disruption while maximizing business value.

• This assessment forms the basis for a successful SAP S/4HANA transformation, ensuring alignment with industry best practices, regulatory compliance, and future scalability.

• Migration strategy definition – evaluating available transition approaches based on business objectives, technical feasibility, and SAP best practices.

• Technical readiness assessment – conducting a system analysis to assess compatibility, custom code impact, data volume management, integration points, and infrastructure readiness for SAP S/4HANA.

• Business process impact analysis – reviewing the latest business process documentation to define the scope and effort needed to implement required functions in SAP S/4HANA and identify process optimization opportunities.

• Roadmap for non-SAP systems and applications – evaluating third-party and legacy applications for SAP S/4HANA integration and recommending consolidation, migration, or replacement strategies.

• Deployment & implementation planning – defining a phased rollout approach, including project timelines, risk mitigation strategies, and key milestones aligned with business priorities.

• The transformation is carried out in phases: the discovery phase leads to the explore phase, which then leads to the design phase and finally to the implementation phase.

• Program management

• Change management

• Requirements management

• Transition management

• Stakeholder management

• Risk management

• Comprehensive coordination

• Focus on EBICS optimization and further development of the customer’s internal EBICS application
• Business and technical consulting for Aareal First Financial Solutions AG on products and applications of the EBICS standard in the areas of operations and further development, as well as project-related communication with external development partners and the product vendor to map the relevant optimizations on a technical level
• In the role of business coordinator, consulting on content-related and regulatory requirements as well as technical prerequisites and needs, and consolidating these on a business level
• Consulting on the use of EBICS formats
• Review of the current EBICS standard for potential optimizations and further development
• Analysis of the current state to identify further development potential and derive suitable recommendations for action, taking regulatory requirements into account
• Carrying out EBICS tests during the project
• Responsible on a business level for requirements management, and in this context capturing and documenting requirements for such tests
• Design of a functional and long-term test management approach
• Execution and evaluation of tests
• Consulting on sustainable quality assurance and audits
• Project languages: German and English
• Tools/methods: MS Project, MS Office, MS Visio, TestRail, Confluence, Jira, Business Logics Bank Rechner, Business Logics test data generator, Business Logics banking tool, Business Logics test system, DBEAVER, Squirrel, Unix virtual machines, WinSCP, Kitty, PuTTY, various Aareal Bank products, online banking portal, Aareal Sign, core banking system, SAP Blue Eagle, SAP RE-FX, Aareon Wodis Sigma, Haufe Real Estate Wowinex, GAP Group Immotion, UTS Karthago, SAP IS-U/Waste, SIV kVASy, various EBICS clients

• Projects for federal networks (NdB).
• CR management, EoL change requests, design and documentation according to ITSCM.
• Data center planning.
• Project management and engineering subproject management.
• Software development for virtual server environments according to BSI.

• Designed and implemented a new user support tower organization as part of the global IT transformation initiative.
• Created an operating and control model for the central service desk, including downstream support units (field service, VIP support, service points).
• Performed a comprehensive as-is analysis of existing service desk and field service structures and developed a target architecture based on ITIL 4 and SIAM.
• Defined roles, responsibilities, and governance mechanisms for internal IT and external providers.
• Prepared the blueprint document Service Management & Governance Handbook (User Support) to standardize global service processes (incident, request, problem, change, knowledge, ITSCM, CSI).
• Developed a KPI and SLA framework to measure service quality and performance in global user support.
• Defined the reporting and review structure (operations meeting, service review meeting, management steering board).
• Prepared RFP documents for the external tendering of L1/L2 support services, including definition of scope, governance model, process requirements, tool integration (ServiceNow), and KPI/SLA sets.
• Supported procurement and legal departments in evaluating and negotiating vendor proposals and assisted in vendor selection and contract finalization.
• Oversaw the handover to operational support, including knowledge transfer, training of provider teams, and establishment of a continuous improvement process (CSI).
• Methods / framework / tools: ITIL 4 / ITSM, SIAM, IT4IT, ServiceNow, Jira, BPMN, operating model canvas, KPI & SLA design, governance & performance management

• Project review, restructuring, and PM for the migration of a total of 12,000 Windows workplace systems (650 applications) from SCCM and Empirum/Matrix42 to MS-Intune after a merger.
• Took over a heavily delayed / not ideally managed project in the role of the "firefighter".
• Completely revised and adjusted/updated the planning of the customer and the involved service provider.
• Introduced planning baselining as well as tracking/mitigation of current risks.
• Introduced an efficient, partially automated planning/reporting interface between MS Project Planning (service provider) and Jira (customer).
• Restructured meetings to increase efficiency and remove redundant appointments.
• Completed the analysis and design phase and created base data for migrations from heterogeneous systems of the two merged companies.
• Started the User Acceptance Test (UAT).
• Technologies: MS Autopilot, Zero Touch.

• Taking over operational acceptance tests for internal and external applications in a preproduction environment
• End-to-end tests across multiple systems
• Planning and implementation of acceptances based on expected loads and service levels
• Creation of test plans and automated tests
• Monitoring of systems, log analysis and creation of test reports, monitoring charts and acceptance documentation
• Support during rollouts of security and OS patches in preproduction
• Load and performance tests as well as failover/rollback tests
• Testing SOAP/REST APIs with JMeter, Grafana and Kibana
• Batch tests with Bash and log analysis
• Load and performance tests of own applications
• Test automation with JMeter and PyTest
• Maintenance and creation of Bash scripting tests
• Manual system integration tests

• Operation and administration of Windows 2016 / 2019 servers and domains
• Infrastructure services (Active Directory, ADFS, AD Azure Connect, DHCP, DNS, Group Policies)
• Consulting, support and troubleshooting of customer systems
• Documentation and concept design in the area of MS Active Directory
• Updating operation, process and system documentation
• Ticket handling (remote analysis and resolution via incident, change and problem management)
• Technologies: Windows 2022, Active Directory, ADFS, AD Azure Connect, DHCP, DNS, GPO, VMware vSphere, CheckMK, Exchange 2019, PowerShell, Jira, Confluence, Office 365, Matrix42, NetApp, Ansible

• Architecture review and continuation of the architecture of two Red Hat OpenShift 4.16 environments: one for the so-called legacy environment in Berlin, consisting of two availability zones, and the other for a geo-redundant cluster between Berlin and Würzburg with three availability zones each.
• Further development or creation of the detailed designs for the legacy data center and the new DRV data center.
• Architecture of the hub clusters.
• Architecture of the RHACM and RHACS components.
• Architecture of the Red Hat Quay repositories and the connection and replication of existing JFrog Artifactory repositories.
• Creation of the required firewall requests.
• Review of the BSI basic protection checks of the environments and creation of implementation instructions.
• Design and requirements analysis of the Quay image registries.
• Design for the use of Hashicorp Vault as a secret store for the clusters.
• Creation of a backup concept for the Red Hat OpenShift clusters.
• Creation of concepts for the lifecycle of the images in the registries.
• Design of a federated user management based on LDAP/AD for the administrative OpenShift users.

• Analysis and inventory of a system consisting of 2 control units
• Creation and derivation of the static software architecture
• Optimization and standardization of structures for model-based control
• Creation of the dynamic software architecture
• Development of improvement proposals in workshops with the customer

• On-site implementation and upgrade of the life cycle infrastructure for a global partner of a Hays customer.
• On-site implementation for international locations in APAC & AMER.
• Executed on-site life cycle infrastructure upgrades for sites IN-NDA, IN-MOX, US-CAX, US-MOT, CN-YAN, and IN-MOR according to customer requirements. This included project management, administration, network design, optimization, as well as planning and deploying redundant OM4 and OS2 fiber and redundant power systems.
• Designed, upgraded, and migrated data centers for the above sites, including international on-site travel to the USA and India.
• Led and oversaw the network team, providing remote and on-site support for cabling work.
• Created network documentation, including L2 and L3 Visio drawings, IP address planning, network patch plans, power plans, bayface layouts, access point layouts, ISP carrier layouts, data center planning, downtime planning and scheduling, hardware checklists, network device configuration, implementation, test plans, and proposal evaluations.
• Extensive experience with Cisco hardware, including switches (9200, 9300, 9400, 4500, 3850, and 2960 series), WLC (9800, 5505, 3504, and 2800 series APs), ASA (55xx series), and NG Firepower (1010, 1120).
• Maintained documentation, including NetBox, PRTG monitoring, RADIUS, DNS, DHCP, and KX handover sessions, troubleshooting & trainings.
• Life Cycle Technical Guide & Control

• Added a safety shutdown in the MISCEO product firmware when a certain delivery limit (cap) was reached.

• Familiarized myself with the product and its firmware (C code and functionality).

• Identified the code parts needed for the change.

• Implemented the extension.

• Tested and documented (only in the source code).

• Target platform: embedded firmware without an operating system.

• Tools: Eclipse, C.

• Continued an interim project (3 days per week)
• Imaging computers
• Switching Active Directory accounts
• Delivery/setup of computers and user training
• Field support for issues
• Active Directory support of computer accounts
• Exchange administration
• VPN deployment
• Backup management
• Device and license management in the database
• 1st and 2nd level support

• Supported an agile team in the development of a new CRM tool
• Web frontend development (Angular 17 with MDB-Bootstrap, microfrontends, DDD)
• Backend development (C# & .NET 7-9, MongoDB, MassTransit, RabbitMQ, Elasticsearch, microservices, DDD)
• Coordination with stakeholders & product owners
• Assisted in sprint planning