Stefan L.
Dashboard for Interactive Data Analysis
Experience
Jan 2024 - Present
1 year 8 monthsInteractive Data Analysis Dashboard
LennardtundBirner GmbH
- Developed and deployed an interactive dashboard that allows users to select datasets for visual analysis.
- The application supports filters, AI-based interpretations, and a chatbot for user interactions.
- Technologies: shiny, openai, mirai, plotly, mapgl, duckdb, AWS, ShinyProxy, Docker Swarm
Jan 2023 - Present
2 years 8 monthsAutomated Reporting System
IQTIG
- Revised R scripts to create about 1,500 formatted Word tables for annual reports.
- Led an analysis project to integrate and validate data from various sources.
- Developed and deployed accompanying web applications.
- Technologies: shiny, SQL, rmarkdown, targets, ShinyProxy, Docker Swarm
Jan 2023 - Present
2 years 8 monthsShiny Apps for Data Processing
Roche Diagnostics GmbH
- Developed and maintained multiple Shiny apps and APIs to integrate measurement data into a database.
- Created graphical analyses and automated reporting.
- Technologies: shiny, SQL, rmarkdown, plotly, ggplot2, dplyr, httr
Jan 2023 - Dec 2024
2 yearsMachine Learning Web Application
Internal Project
- Developed a web application to democratize machine learning.
- Covered the entire ML workflow from data preprocessing to API-based model delivery.
- Technologies: shiny, rmarkdown, data.table, mlr3, vetiver, ShinyProxy, AWS EC2, AWS SageMaker
Jan 2022 - Present
3 years 8 monthsShiny App for Automated Reporting and Deployment
LennardtundBirner GmbH
- Maintained and enhanced a Shiny app to automate various data analysis processes.
- Presented results in custom PowerPoint presentations.
- Responsible for scalable and secure deployment.
- Technologies: shiny, officer, ggplot2, ShinyProxy, Docker Swarm, AWS EC2, AWS Route53, AWS Cognito
Jan 2022 - Dec 2023
2 yearsGeodata Download Dashboard
LennardtundBirner GmbH
- Created and deployed a dashboard for downloading geodata of German regions.
- Visualized the data on interactive maps.
- Technologies: shiny, osmdata, osmextract, leaflet, sf, ShinyProxy, AWS, Docker Swarm
Jan 2022 - Dec 2022
1 yearAutomated API Data Integration
LennardtundBirner GmbH
- Developed an R package to automate API data download and processing.
- Presented the results in custom PowerPoint reports via a Shiny app.
- Technologies: devtools, shiny, httr, officer, rmarkdown, future, promises, dplyr, ggplot2
Languages
German
NativeEnglish
AdvancedSpanish
IntermediateEducation
Oct 2021 - Jun 2023
TU Dortmund
M.Sc. · Econometrics · Dortmund, Germany · 1.1
Oct 2017 - Jun 2021
University of Passau
B.Sc., Accounting, Finance & Taxation · Business Administration & Economics · Passau, Germany · 1.1
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