LibreOffice Experts in Germany

• Implementation of a full-stack application with Angular as frontend framework and Java as backend language
• Use of the Swagger OpenAPI specification for REST communication between frontend and backend applications
• Control of a card printer via the Nexus Card SDK framework
• Design and implementation of card management software with web interface and JavaFX module for printer monitoring
• Use of Cucumber tests for test automation and creation of test artifacts for testing outside the development environment
• Use of Wireshark for network investigations to analyze the API of a third-party product and to check the REST API of the self-developed software

• Introduction of 5 different process applications for different teams

• Release planning: scope and time management

• Resource/capacity planning

• Conducting Sprint Planning / retrospectives

• Increment planning (several sprints)

• Preparation of Steering Committee meetings / reporting to the Board

• Coordination / alignment with external suppliers / deliveries

• Resource planning for multiple projects

• Coordination with business department and development team

• Identification of best practices with IBM BAW

• Cost control and planning for the project team and external service providers

• Collection of KPIs using LogScale

• Analysis of application errors with LogScale / Queries

• User Story definitions / coordination of requirements with the business department and development team

• Testing and defect tracking

• UI/UX design of applications

• Preparation and moderation of Brown-Paper workshops

• Test concept, test data, test organization, test execution

• Collection of team velocity / metrics

• Test execution

• Script for automated testing

• Test organization with business department and IT

• Recording and prioritization of defects

• Establishment and operation of the application

• Establishment of application monitoring with LogScale Dashboards

• Checking health endpoints with PowerShell

• Post Mortem analysis

• Establishment of Incident Management

• Establishment of Problem Management

• Analysis of errors using LogScale Queries and Dashboard

• Pre-processing of data for AI

• Evaluation using AI language models (Meta Llama 3.3 LLM and deepset Haystack) and RAG

• Installation of runtime environments for LLMs (Large Language Model)

• Evaluation of various LLMs

• Installation of RAG (Retrieval Augmented Generation) and integration with LLM

• Extraction of unstructured data with LLM and RAG

• Project based on IBM BAW (Business Automation Workflow), Websphere Liberty, Domea, d.3, REST, LogScale (formerly Humio), Swagger, Powershell, JIRA, Confluence, Lucom Interaction Platform (LIP), Mattermost, Jabber

• Adding/creating test specifications
• Performing regression tests
• Performing release tests
• Analyzing Jira tickets
• Identifying software defects and fixing them with C#

Evaluation and selection of a new endpoint management platform for an environment with around 50,000 clients. Support for a manufacturing company in evaluating a future endpoint management platform as a possible replacement for the existing client management solution. Conducting a structured software selection process including proof of concept as well as preparing the decision basis for the Enterprise Architecture Board (EAM). Defining the technical requirements and evaluation criteria and creating a short list of possible solutions (Tanium, Baramundi, Microsoft Intune / MECM). Planning and supporting the technical proof of concept as well as evaluating the architecture and operations aspects of the different platforms. In addition, evaluating tools for migrating existing software packages from the Ivanti DSM environment. Comparing and testing IDERI Move and PACE for the automated transfer of the existing package structure to the new platform, with the goal of significantly reducing migration effort. Support in selecting the required Tanium modules as well as preparing the decision documents for the Enterprise Architecture Board.

Tools: Tanium, Baramundi, Microsoft Intune, Microsoft MECM, Ivanti DSM, IDERI Move, Pace, Windows 10, Windows 11, Windows Server. VDI

Customer satisfaction significantly increased. Received praise from several highly senior clients, particularly for my leadership skills. Involved customers more closely in the project and thereby achieved faster progress.

• Industries: biofuels, press and energy.
• Managed four projects and used Requirements Engineering for process digitalization.
• Led teams of 5 - 8 developers.
• Used AI with Copilot and Claude for coding, documentation (.md files), and invoicing.

• Strategic consulting, technical consulting, interim management, and training
• Management consulting and development of application solutions through interdisciplinary solution approaches
• Employee and team development as well as innovation and communication management

• Requirements analysis and replacement of local SharePoint as CMDB with open source NetBox to prepare for deploying Cisco ACI (SD-WAN) with Microsoft Azure
• Coordination with systems like Checkmk and Grasp
• Introduction and coordination of cmdbsyncer as CMDB data hub; further development of the syncer with Kuhn & Ruess GmbH
• Implementation of SNMPv3 on AIX LPAR/VIO, Linux, Windows, SAN/storage, network components (Cisco switches, F5 load balancers, Palo Alto and CheckPoint firewalls, iLO boards)
• Deployment and further development of the network scanner JDisc in cooperation with the vendor (Utimaco HSMs, Linux detection)
• Integration of NetBox, JDisc, and cmdbsyncer into the infrastructure using Docker containers
• End-user training: preparation, creation of materials, and delivery
• Creation of data flow and network diagrams
• Population and planning of IPv4/IPv6 with NetBox including VLAN import
• Dual-stack setup of servers and clients with IPv4 and IPv6
• Connection of REST interfaces for Checkmk, JDisc, vSphere, HMC, i-doit, NetBox Software: Confluence, Jira, MS Office 365, Teams, i-doit, NetBox, JDisc, cmdbsyncer, DB Visualizer, vSphere, HMC

• Development of a B2B shop based on Magento 2
• Plugin research and implementation, e.g. individual prices per customer
• Implementation of custom adjustments
• Quality assurance
• Release management
• Collaboration with the marketing team
• Technologies: Magento 2, CSS, Javascript, PHP, Docker, Git

• Implemented data/feature pipelines and automated validation/reporting for multi-million-row insurance datasets.
• Built production-grade image processing to detect fabric defects; delivered maintainable, well-tested Python code and concise reports.

• Selected clients: b.telligent, Jugendfeuerwehr, Stackable, 1K5

• Consultant for system architecture, AI agents & integration, coach for data & process logic, Graph-RAG approaches, security and data protection.
• On-premise AI solutions with high compliance and performance requirements.
• Architecture decisions, operational setup, strategic prioritization & deployment.
• Technologies: LiveKit JS SDK, LiveKit Agents, Web Audio API, JS, AudioWorklet, Loki, vLLM, Zscaler, Docker, Neo4j, MySQL, Python.
• Models: GPT-OSS 20B, Whisper large v3 turbo, Qwen3-TTS.

• Conducted Excel trainings and supported the reorganization and setup of cost controlling in wholesale trade.
• Excel training content: spreadsheet setup, data validation, date calculations, logical formulas (IF & IFERROR), lookup functions (VLOOKUP & XLOOKUP), name manager, error checking, grouping, file, workbook and sheet protection, sorting and filtering, subtotal calculations, pivot tables, Get and Transform (Power Query), Power Pivot, formulas and functions, creating links (GETPIVOTDATA).
• Review of the existing data structure, organization and creation of improvement suggestions.
• Support in implementing all measures.
• Answering questions about MS Excel.

• Product responsibility for the central platform "one" as a group-wide web-based customer portal
• Coordination of the connection of 20 group companies to the product platform
• Derivation and steering of a group-wide product strategy and roadmap aligned with company goals
• Prioritization and bundling of strategic requirements from the various group companies
• Harmonization of different interests and moderation of complex decision-making processes at management level
• Ensuring the technical and business integration of the product into existing system landscapes, business processes, and business models
• Building transparent governance and decision-making structures for group-wide product development
• Representation of the product towards internal and external stakeholders at leadership level

• Introduced an integrated approach for structural damage detection across concrete, steel, and glass using advanced technologies such as LiDAR and thermal imaging. Highlighted cross-material interactions to enhance diagnostics and enable predictive maintenance.

• Developed an NLP-based medical note simplifier that transforms complex clinical instructions into plain, child-level English. Applied prompt engineering with Flan-T5 transformer models to extract patient-relevant actions and rephrase them into clear to-do items. Built dual Flask and Tornado backends with a printable web interface.