Microsoft Power Apps Experts in Germany

• Created data pipelines and visualization tools to support sustainable energy decision-making
• Developed insights that could optimize renewable energy deployment and grid integration strategies

• Advising companies on building, migrating and optimising BI and reporting landscapes (Power BI, SQL, Python, ETL)

• 5 client engagements in real estate and finance since 05/2025: taking over and stabilising existing reporting, automating recurring standard and management reports, building cash-flow models

• Proposal and feasibility assessments for BI and reporting projects

• Using AI-assisted development (Claude Code) to accelerate automation, tooling and web/app development

• Custom ERP system

• Problem: A client's core processes ran on scattered, siloed Excel files with no central data storage – error-prone, hard to scale and impossible to analyse end-to-end.

• Approach: Captured the business processes and requirements, modelled the data and developed iteratively together with the business team.

• Implementation: Built a tailored, web-based ERP system with a central database, role-based modules and automated reporting – delivered using AI-assisted development in Claude Code.

• Timesheet app

• Starting point: Time tracking based on an overgrown, macro-heavy Excel template – maintenance-intensive, single-user and error-prone.

• Implementation: Migrated all functionality and VBA macros into a standalone web app with central data storage, multi-user support and automated reporting.

• Cash-flow modelling

• Starting point: The existing cash-flow model covered standing investments only; project developments were missing from steering.

• Implementation: Built and extended the CF model to include project-development cash flows.

• Optimisation: Reviewed and optimised existing CF models and expanded the KPI outputs for reporting and steering.

• IT consulting
• Power Platform & Databricks
• AI software development (custom software)
• Commercial responsibility for the company

Technologies: n8n, Notion, OpenAI API, Claude, MS AI Foundry, MS CoPilot Studio, MS CoPilot, LLM, Node.js, Vercel, LangGraph, PostgreSQL, pgEdge, pgvector, Docker, LangChain, Ollama, Open WebUI

• Continuous evaluation and prioritization of internal automation needs
• ~20 AI agents in active use: research, content pipelines, document processing
• 5 n8n workflows for automated data and process control
• Architecture built on the same principles as in customer projects: state management, event-driven orchestration, API integration
• Ongoing operation and further development

• Built and maintained Power BI dashboards (DAX, Power Query, data modeling) tracking KPIs across 15+ global manufacturing sites — primary reporting tool for EU leadership decision-making.
• Developed a multi-screen Power Apps application (configurator-style tool) with SharePoint-based workflow integration for the sales team — designed jointly with business stakeholders and IT.
• Built and maintained automated Power Automate workflows connecting to SQL databases; independently identified and deployed an LLM-driven automation use case that eliminated 90% of manual reporting effort — self-pitched to leadership and taken end-to-end into production.
• Built a Python-based data pipeline (SQL) extracting, modeling, and validating data across 10+ EU plants — establishing reliable data models and KPIs for cross-site reporting.

• Thesis Title: Designing a Semantic Layer for Enterprise Analytics and AI Integration.
• Designed a semantic layer architecture for enterprise analytics that improved dataset discovery, relationship mapping, and governed access to reporting data.
• Built schema discovery and SQL generation workflows across 400+ data products, translating complex data structures into consumable analytics assets.
• Implemented role-based access control, Row-Level Security, and query validation to ensure data quality, governed access, and reliable use of enterprise reporting datasets.

• Support end-to-end innovation lifecycle, from technology scouting and use case development to incubation and implementation of digital, automation, and AI solutions.
• Designed and implemented process automation solutions using Power Automate, Mendix, and Power Apps to digitalize internal workflows and reduce manual effort.
• Prototyped AI-based agents to automate internal processes and explore efficiency gains in IT operations.
• Developed Power BI dashboards to provide leadership with clear visibility into strategic KPIs and operational performance.

• Consultancy Databricks Lakehouse Platform Architecture
• Migration of existing manufacturing data services to Databricks. Existing services are running on various platforms & tools and are unified on target platform
• Implementation of new Data & AI use cases on Databricks platform (e.g. connecting new systems, building AI Agent prototypes, …)

Tech Stack: Databricks, Azure, PySpark, Python

• Structured analysis and evaluation of business processes

• Gathering, documenting, and prioritizing requirements

• Creating business-friendly and technically executable process models

• Use of Camunda tools

• Deriving requirements and interfaces from BPMN diagrams

• Coordination with stakeholders and business units

• Translating business requirements into technical solution designs

• Implementing efficient and tailored applications

• Systematic collection, analysis, and documentation of requirements

• Prioritizing and validating requirements in close collaboration with stakeholders

• Alignment between business and development to ensure shared objectives

• Creating use cases, user stories, and acceptance criteria

• Continuous requirements and change management throughout the project lifecycle

• Define project goals and create project plans

• Delegate tasks and monitor project progress

• Monitor budgets and inform stakeholders

• Mendix: Architecture, development, and maintenance of custom applications (Microflows, Domain Model, Security, XPath)

• Modeling Mendix workflows for process optimization

• Develop scalable apps with Mendix including REST/SOAP integration with SAP, SQL, Azure & SharePoint

• UI design for Mendix using Atlas UI, Fluent UI, HTML, CSS, JavaScript

• Develop web & mobile apps with Mendix using agile methods (Scrum, Kanban)

• Implement business logic with Mendix Microflows and Nanoflows

• Performance optimization and architecture improvements for Mendix applications

• Conduct Mendix training

• Create technical documentation and best practices for Mendix

• Coaching and mentoring for low-code development with Mendix

• Lecturer for the GenAI Track at the Master School Institute of Technology
• Development of a full-stack AI application (React + Python/FastAPI) for automated supplier product import with intelligent column and category classification (4-layer hierarchical) including human-in-the-loop validation

• Responsibility for daily HR operations across 4 studios in Germany, focusing on personnel administration and the employee lifecycle
• Drafting, reviewing, and managing all employment law documents (employment contracts, contract amendments, certificates, references)
• Preparing payroll, especially for hourly wage models, including data preparation and coordination
• Maintaining and managing timekeeping data in the system (Gfos) and ensuring data quality
• Proactively managing and tracking personnel-related deadlines (e.g., probation periods, fixed-term contracts, evaluations) in close coordination with studio managers
• Acting as the central point of contact and reminder for managers on all HR-related topics and processes
• Structuring and tracking HR processes while ensuring completeness and compliance of all documents
• Creating and maintaining HR documents, reports, and overviews in Word and Excel

• Managing and scaling multiple client accounts (Meta & Google Ads) with a focus on ROAS and CPA
• Developing and A/B testing ad creatives, offers, and landing pages
• Building email and flow automations in Klaviyo (welcome, abandoned cart, post-purchase)

• Enhanced the AI model monitoring solution to allow comparative analysis of model versions and full tracking of input variables with relative drift metrics for complete monitoring.
• Developed a custom LLM solution to automate the certificate of incoming goods of supply and support downstream analysis.
• Enhanced Digital Twin AI models to support model validation.

Skills: Python, Statistical Computation, Large Language Models (LLM), Machine Learning Engineering, Natural Language Processing (NLP), Data Wrangling, Data Visualization, Statistical Evaluation.

Tools: Python programming, Snowflake, Databricks, Microsoft Powerapps, Powerautomate, PowerBI, Scipy, Seaborn, Scikit-Learn.

• Support and further development of a complex process for creating XML documents for electronic invoices / E-Invoicing (XRechnung, ZUGFeRD)
• Automation of operational processes, process development and optimization
• Development of frontend applications with MS Power Apps
• Porting SQL Server 2016 to SQL Server 2022
• SQL Server database administration