Microsoft Certified: Azure Fundamentals (AZ-900)

Product:

• Built a production-ready AI platform for generating brand-aware marketing images and videos from product data, user requirements, and uploaded media.
• Own the platform architecture, technical roadmap, API design, security, deployment workflow, operational reliability, and model-provider strategy.
• Developed the core platform in .NET and built supporting AI and workflow prototypes in Python, applying language-independent API contracts and structured interfaces between services and model providers.
• Implemented reliable background processing with RabbitMQ, persisted workflow state, idempotent handling, retries, failure recovery, logging, secure storage, authorization, and credit accounting.
• Made pragmatic build-versus-buy and model-routing decisions based on reliability, latency, cost, and maintainability rather than novelty.

Agent Orchestration & RAG Systems

• Built and compared agent workflows using Microsoft Agent Framework, LangGraph, and LangChain, including tool use, conditional routing, clarification steps, state management, and hand-offs between agents.
• Implemented reusable .NET components for agents, prompts, tools, model providers, structured responses, and retrieval with pyvector, making it easier to change AI providers without rewriting the core workflow.

• As-is assessment of the current network infrastructure and its documentation, including on-site inspections
• Independent planning of new distribution and main distribution rooms in the individual district offices (components used, rack layout, connectivity), considering the BSI IT-Grundschutz and InfoSic requirements
• Planning of new copper and fiber optic cabling, including patch panels
• Coordination with building services engineering (TGA) to ensure compliance with relevant on-site requirements
• Development of detailed execution plans and high-level concepts for the rollout of the new infrastructure
• Additional support after the components go live (hypercare phase)
• Regular communication with project management and client stakeholders

Project: Tax Exemption Order Application

The client has an existing application for creating and maintaining tax exemption orders for end customers; design and implementation of a comparable application for internal employees.

• Design and implementation of microservices and the UI for the business area "tax exemption orders" using Domain Driven Design as well as Spring Boot and Angular.
• Implementation of reactive, non-reactive, and asynchronous APIs (Spring REST, WebFlux, GraphQL).
• Development of the Angular application, including state management using Signals, RxJS Observables, and subscriptions.
• Securing the API and the application using OAuth2, JWT, and OpenID Connect.
• Configuration and setup of CI/CD pipelines with Jenkins.
• Collaboration with cross-functional teams and conducting code reviews.

Environment: Java, Spring Boot, Angular 18 & 19 (standalone, signals), RxJs, Bootstrap CSS, Vitesting, OpenShift, Istio, microservices, Kafka, Dynatrace, Jenkins, GitLab, Graylog, Sonar, Oauth2, OracleDB

• Completed an intensive AI Engineering Program focused on LLM evaluation, retrieval, agent orchestration, and multimodal workflows.
• Designed retrieval pipelines with document ingestion, semantic search, and citation-aware outputs using LangChain and ChromaDB.
• Built LangGraph-based agent workflows with state handling, clarification loops, and human-in-the-loop approval steps.
• Applied prompt engineering and evaluation patterns, including scoring logic and guardrails, to improve output quality and reliability.
• Worked extensively with Python, FastAPI, OpenAI APIs, LangChain, LangGraph, and ChromaDB in end-to-end implementations.

• Successfully led IT infrastructure projects with budgets up to €10M, including data center migrations and cloud transformations, improving operational efficiency by 30%.
• Managed project specifications, resources, and stakeholder alignment, delivering 95% of projects on time and within budget, ensuring seamless execution.
• Reduced project risks by 40% through proactive risk, cost, and claim management while maintaining 99.9% system uptime and effective C-level communication.
• Optimized team performance by 25% using agile methodologies like Scrum, enhancing service readiness and ensuring a 20% faster go-live for IT solutions.

• Realtime monitoring and analysis of individual devices, device groups, or the entire machine park

• Data evaluation of one or more measurement systems or a complete machine park to compare devices

• Data export as .csv file for: utilization, usage, collisions, measurement plans and temperatures

• Notifications via browser and email

• Analysis of project requirements and goals

• Implementation of UI components and features based on design specifications

• Development of RESTful APIs with C# .NET

• Implementation of business logic and server-side data processing

• Review of code changes by other developers

• Azure IoT infrastructure, Cosmos DB, Angular, .NET 6

• C#, Typescript, REST

Digital Strategy & Enterprise Architecture Industry 4.0 Sustainable Supply Chains Digital Twins, Data Spaces and Digital Product Passports Manufacturing, Energy, Automotive, Transport&Logistics, Mining Management Consulting Business Architecture Digital Business Model

• Conducted stakeholder interviews and market analysis to identify challenges in secure genetic data use, translating insights into a product concept and AI graph-RAG prototype.