TCP/IP Experts in Munich

• Development of a comprehensive transformation model for IT departments and ITSM organizations, from operational stabilization through structuring and optimization to strategic advancement
• Design of a transformation matrix that connects development phases with the implementation activities Position, Focus, Model, Enable, Anchor and Develop
• Development of assessment, maturity and decision-making logic to determine the operational starting point, the appropriate entry point and the prioritized areas of action
• Structuring of an end-to-end approach from current-state assessment and target vision through operating model, roadmap and service modules to implementation and integration into steady-state operations
• Derivation of combinable consulting and implementation modules, including methods, deliverables, role models, governance structures and transformation paths
• Collection, structuring and prioritization of business requirements from the perspectives of IT management, service management and operational roles
• Translation of requirements into target visions, process and role models, decision criteria and traceable deliverables

Environment / Tools: ITIL 4, IT4IT, Operating Model Canvas, SIAM, maturity models Kanban

• Modernization of a large-scale Java enterprise application*

The project is modernizing a complex enterprise application that has grown over many years. The existing Spring-based legacy system runs on Java 8, OSGi, and Eclipse RCP and is being gradually migrated to a modern, maintainable architecture with Java 25 and Quarkus.

Marcus works on analysis, architecture, refactoring, and implementation. One focus is on untangling historically grown structures and dependencies and on building a clean, sustainable Java and Quarkus technology stack.

Tools & technologies: Java 8, Java 25, Quarkus, Hibernate ORM with Panache, EclipseLink, OSGi, Eclipse RCP, Maven, JUnit, Mockito, REST, JSON, Git, Eclipse IDE, IntelliJ IDEA Ultimate, Jira, Confluence

• Cisco SDA LAN network
• Transition and Transformation

• Development and maintenance of IT architectures with embedded Linux systems.
• Designing, implementing, and optimizing backend applications and script-based solutions.
• Analyzing and resolving issues, including troubleshooting and user support.
• Developing and implementing security concepts for cloud solutions.
• Administering networks (DHCP, DNS, NTP, VPN).
• Technologies: Linux, PowerShell, Bash, Python, Ansible, Kubernetes, GitLab CI.
• Methods: Kanban.

• Executed standard/complex test cases using ECU-test and Python, improving test throughput by 30%.
• Performed validation and execution of ECU test cases on HiL benches for ADAS to ensure functional quality before release.
• Worked closely with customers to align test activities with project requirements and provide regular validation updates.
• Coordinated with subcontractors to track defects, ensure timely issue resolution, and maintain test quality.
• Ensured testbench stability and maintenance before executing test plans, identifying and resolving issues proactively.
• Developed Python-based automation scripts for reporting and workflow automation.
• Managed test issues and documentation via Jira in coordination with QA and development teams.
• Used CANPE for measuring signals of CAN, FlexRay, Ethernet, and IP using Vector CAN tools.

• Planned and carried out black-box adversarial testing of traffic-sign computer-vision pipelines; created a threat model and attack-surface analysis for safety-critical scenarios
• Built a programmable hardware proof of concept using a holographic POV fan and a repeatable test harness to run real-time experiments and gather evidence for vulnerability assessment
• Measured misclassification across lighting, distance, and angle, achieving up to 90% untargeted misclassification; delivered reproduction steps, PoCs, and prioritized mitigations, and documented limitations and residual risk

• Responsible project manager for complex international infrastructure projects
• Coordinator and decision-maker for IT architects in network infrastructure and software with over 100 000 users
• Holistic project management
• Launch and implementation of initiatives
• Project management of international infrastructure projects with C-level reporting
• Leadership and coordination of IT architects
• Technical project management for merger and cloud transformation
• Execution of international software and hardware rollouts
• Implementation of IT security projects and compliance
• Working with key technologies (e.g. 5G/6G standard)
• Management of complex defense and aerospace projects (e.g. Ariane 6, Eurodrone)
• Establishment of the healthcare and life sciences business unit
• Creation and management of internal employee training

• Designed and built from scratch the automation framework using Playwright, Typescript, JavaScript, Gherkin, Cucumber, BDD, Maven, IntelliJ IDEA
• Defined, developed and maintained test plans, test scripts, reports and other QA documentation in Confluence
• Created and maintained test data with SQL Server Management Studio, Toad and Faker.js
• Performed web services and API testing using Swagger Open API, SoapUI, JSON, HTML and XML
• Executed functional, smoke, regression, black box, GUI, cross-browser, UAT and E2E testing using CrossBrowserTesting and Safari Web Inspector
• Integrated and maintained automated scripts within sprints following Kanban, CI/CD, GitHub, Docker, Azure Pipelines, Agile, Scrum, Kafka and Kibana
• Raised and managed defects in Azure DevOps
• Conducted mobile testing with Robot Framework and Appium

• Test concept creation
• Creation of test processes
• Coordination of TC development: stress tests, functional tests, performance tests, high data rate tests, integration tests, etc.
• HW testing: FPGA, RF
• Test automation and regression tests
• Ensuring 24/7 operation of the test system
• Analysis & reporting
• Regular coordination of the test team, meetings with other stakeholders
• Communication and coordination with stakeholders and the project manager

• Initial technical analysis of the requirements for the two applications

• Creating a system concept for the interim solution and for the final solution

• Creating the product vision, customer journey, and story map for the interim solution in close cooperation with subject matter experts

• Building a development team

• Managing dependencies and interfaces with the other applications according to Domain Driven Design principles

• Creating EPICs and user stories, and maintaining the product backlog in coordination with subject matter experts and developers

• Running sprint reviews with relevant stakeholders such as subject matter experts and management

• Analyzing the requirements for the final solution

• The interim solution was built within 8 months and was successfully used for the 2022 heating cost billing

• The interim solution has since been further developed to increase automation

• A technical concept for the final solution was created

• Handover to two internal Product Owners is currently in progress

• Create a product and service portfolio delivering a 360 degree approach to digital corporate sustainability covering KPI management, CSRD reporting and sustainable strategy
• Create vision and business case
• Onboard and align business partners, negotiate contracts
• Set up partner network as self-organized agile team
• Co-develop product and service portfolio
• Coordinate sales and marketing, go-to-market strategy and roadmap

• Pre-assessments and review of functional safety status for ADAS ECUs and body controller components
• Conduct functional safety audits
• Review the functional safety status of the E3 1.2 in a pre-assessment
• Document interviews
• Document findings and generate internal reports

Methods:

• ISO26262
• Automotive SPICE Level 2, 3
• Agile methods, SAFe

Tools:

• DOORS
• Enterprise Architect
• JIRA & Confluence
• IQ-FMEA
• Isograph

• Analysis and assessment of government business processes with regard to migration capability
• Definition and preparation of the technical framework conditions in the new master data center
• Development and optimization of migration procedures and processes
• Transformation of existing solutions to new technical standards (technology refresh)
• Coordination of architecture and technical cross-cutting topics

• Training professionals in PLC technology, pneumatics, control engineering, and KUKA robots
• Creating scripts for Siemens systems: STEP 5, STEP 7, TIA Portal, WinCC
• Creating scripts for pneumatics, control engineering, and KUKA robot programming
• Serving on the examination committee for quality assurance in vocational training
• Training and certifying over 500 professionals