Fullstack Developer, LLMs, AI, SAP

Description:
Overseeing a project involving the migration of infrastructure that in-cludes the integration of new hardware in two customer locations. This project also involves transitioning from a deprecated system to the use of Office 365 and Azure Active Directory.

Products:
▪ Proxmox
▪ Office 365
▪ Azure AD
▪ Exchange Online
▪ Windows Server 2019
▪ Windows 10
▪ Unifi Systems

Details:
▪ Develop a comprehensive audit of the current, outdated system, de-tailing all hardware such as switches, servers, UPS, access points, desk-top computers, notebooks, smartphones, VoIP phones, firewalls, etc.
▪ Collaborate in designing a blueprint for the new technology landscape
▪ Formulate a detailed migration strategy
▪ Oversee the entire process, involving the customer's employees, 3rd party vendors as integral members of the team

Description:
Setting up an efficient system for the evaluation and development of machine learning models, and experimenting with Large Language Models (LLMs) and Stable Diffusion.

Products:
▪ Python
▪ Tensorflow
▪ LLaMa / Alpaca-based models
▪ Conda ▪ Jupyter Labs / Notebook
▪ automatic1111
▪ oobabooga
▪ Facebook / Audiocraft
▪ Angular
▪ Node.js
▪ TypeScript
▪ Docker

Details:
▪ Setting up and assembling the deep learning rig with 2 x ASUS ROG STRIX 4090
▪ Preparing the software with CUDA drivers
▪ Launching oobabooga and automatic1111 with different models as a service
▪ Developing a code completion tool for VSCode on CodeGen models
▪ Training a financial model on historical and live stock market data combined with current and historical news
▪ Developing a financial bot for the evaluation of market data with
Node.js, Postgres, Jenkins

Description:
Further developer of a digital platform in the energy sector running on Amazon AWS in an agile enviroment.

Products / Skills:
▪ Angular (Nx, NgRx, RxJs, Jest, Mocha)
▪ AWS (ParamStore, DynamoDB, SDK, SQS, SNS, S3, Lambda)
▪ Drone CI
▪ Jenkins
▪ Golang
▪ Confluence
▪ Slack
▪ Contentful
▪ Papertrail
▪ Amazon AWS
▪ Kubernetes
▪ Docker
▪ Dynatrace
▪ GitHub
▪ Jira

Details:
▪ Conception of go-live campaignslanning of strategic fir, benefit esti- mations and detailed user stories
▪ Microservice backend development in Golang, SQL, Kubernetes, SQL
▪ Monorepo frontend development in Angular
▪ Release management, preparing and deploying services / contens
▪ User test execution

Description:
Led the architecture and development of a comprehensive cloud-na-
tive microservices ecosystem, utilizing a sophisticated tech stack that in-
cluded Golang, Postgres, S3, Kubernetes, Docker, and GitLab. This pro-
ject involved intricate database design and the creation of both REST
and WebSocket APIs. Spearheaded the backend development using
Golang and Node.js, focusing on efficiency and scalability. The frontend
development was managed using a blend of Svelte, Angular, TypeScript,
SCSS, HTML, and micro frontends, ensuring a responsive and modern
web user interface. Additionally, the project encompassed the develop-
ment of a cross-platform mobile application with React Native, achiev-
ing seamless functionality and user experience across diverse devices.

Products / Skills:
▪ Google Suite
▪ Kubernetes
▪ Docker
▪ Gitlab
▪ Wasabi / S3
▪ FullStory
▪ Postgres / Redis
▪ Golang
▪ Node.js
▪ Svelte, Angular
▪ TypeScript / JavaScript
▪ React Native
▪ Jest, Mocha
▪ JSDoc

Details:
▪ Technical requirement analysis
▪ Development of infrastructure concept for the SaaS model
▪ Scaling architecture conception for frontend and backend
▪ Monitoring / Analytics conception
▪ Backend development in Golang | Node.js |Postgres | Docker
▪ Frontend development in Svelte | Angular | TypeScript
▪ Mobile development in React Native
▪ Co-development of a cross-platform mobile App
▪ Design of REST and WebSocket APIs and database schemas
▪ Code reviews for frontend & backend
▪ Setting up CI/CD pipelines in Gitlab

Description:
Design and conception of technical architecture within SAP BI & SAP BW products. Building an MVP for a SaaS collaboration project

Products / Skills:
▪ SAP Lumira Studio + Designer
▪ SAP Analytics Cloud
▪ JavaScript ES5 / ES6
▪ HTML, (S)CSS
▪ Angular
▪ ABAP

Details:
▪ Requirements alignment within SAP BW, BI and Web-Components
▪ Project Management and co-implementation
▪ Defining / testing different technology stacks for scalable systems
▪ Development of containerized system design on top of Kubernetes
▪ APIs design and implementation across different services in SAP BW and BO

Description:
Conception and implementation of future-oriented POC project with the Microsoft HoloLens and Unity3d.

Products:
▪ Unity3d
▪ Blender
▪ HoloLens
▪ VivifyScrum

Details:
▪ Requirements alignment with the state-of-the-art technology
▪ Project management and co-implementation
▪ Development of an AR application in Unity
▪ APIs design and implementation
▪ Implementation of API | component testing suites
▪ AR representation of browser windows
▪ Precise storage of visual information within a physical space and finding the information again within the AR application

Description:
Conception and implementation of an SAP Lumira custom component that performs SAP BW master-data operations through a user-friendly frontend.

Products / Skills:
▪ SAP BW
▪ Lumira 2.x
▪ VivifyScrum
▪ JavaScript
▪ Node.js
▪ HTML
▪ Angular.js, Vue.js

Details:
▪ Understanding of business use cases
▪ Integration of matching web frameworks into the SAP Lumira
▪ Extending a web framework with already existing components for the web
▪ API definition and implementation of frontend client connectors
▪ Development of test-cases

Description:
BW hierarchies needed to be graphically managed by dragging and dropping. The user experience was modelled to be similar to the iPhone. Any changes in the hierarchy should be directly saved in the BW or as a new scenario. Different zoom levels with different detail levels were required.

Products:
▪ SAP Design Studio 
▪ SAP BW
▪ VivifyScrum
▪ JavaScript, HTML, CSS
▪ D3.js, Three.js
▪ Node.js
▪ Java, Tomcat

Details:
▪ Conception and configuration for an SAP BW secure connection for the REST API
▪ Developing interactive SAP BW hierarchies in web dashboards of SAP Design Studio
▪ UI / UX conception & implementation across small devices and large screens
▪ Conception of a user-friendly way that handles touch & mouse inputs

FOCUS:
▪ Building software systems & platforms
▪ IT Project Management
​​​​​​​▪ Clean design of software architecture
​​​​​​​▪ Practical, hands-on, new technologies
▪ Software development

Detailed CV - EXPERTISE:
I am always looking for new challenges, new projects and exciting technology. But I also love to dig into existing products, stabilise and tune them. My experience allows me to draw on a wide range of tools, programming languages and knowledge to find the best possible solutions and approaches to future tasks.

In the SAP environment, I can draw on 5 years of experience ranging from web development, applications and to complex architecture design. I gained a deeper understanding by developing custom components in SAP Lumira Studio. The connection of such modules or components to backend systems like SAP BW / BO brought me to backend development, from where I could gain an overview of different SAP landscapes. Wide knowledge of databases, schemas and queries are also in my repertoire.

I make a point to always keep in touch with best practices in software engineering and try to learn new programming languages, frameworks and tools from time to time. That is why I am passionate about IT and love to solve customer problems!

---

Description:
Development of a POC web component, on the basis of which the real product is developed. Implementation of a  commenting solution in SAP Design Studio.

Products:
▪ SAP Design Studio
▪ Eclipse

Details:
▪ Combining SAP Design Studio dimensions/KPI data with custom web components
▪ Development of web-settings components
▪ Development of connectors to the SAP BW RFC Nodes
▪ Deep dive into JavaScript, jQuery etc.
▪ Creating integration and component tests