Stefan Linner-Dashboard for Interactive Data Analysis
Check rate
Experience
Dashboard for Interactive Data Analysis
LennardtundBirner GmbH
Development & deployment of 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.
shiny, openai, mirai, plotly, mapgl, duckdb, AWS, ShinyProxy, Docker Swarm
Automated Reporting System
IQTIG
Refactoring R scripts to create around 1,500 formatted Word tables for annual analyses.
Leading an analysis project to integrate and validate data from different sources.
Development of web applications and responsibility for deployment.
shiny, SQL, rmarkdown, targets, ShinyProxy, Docker Swarm
Shiny Apps for Data Processing
Roche Diagnostics GmbH
Development & maintenance of several Shiny apps and APIs to integrate measurement data into a database.
Visual analysis and automated reporting.
shiny, SQL, rmarkdown, plotly, ggplot2, dplyr, httr
Machine Learning Web Application
Internal Project
Development of a web application to democratize machine learning: from data preprocessing to API-based model delivery.
shiny, rmarkdown, data.table, mlr3, vetiver, ShinyProxy, AWS EC2, AWS SageMaker
Shiny App for Automated Reporting and Deployment
LennardtundBirner GmbH
Maintenance and further development of a Shiny app that automates various data analysis processes.
Presentation of the results in customer-specific PowerPoint presentations.
Deployment and ensuring a scalable and secure rollout.
shiny, officer, ggplot2, ShinyProxy, Docker Swarm, AWS EC2, AWS Route53, AWS Cognito
Geodata Download Dashboard
LennardtundBirner GmbH
Built and deployed a dashboard that lets users download geodata for German regions.
Interactive map visualization.
shiny, osmdata, osmextract, leaflet, sf, ShinyProxy, AWS, Docker Swarm
Automated API Data Integration
LennardtundBirner GmbH
Developed an R package to automate API data downloads and data processing.
Presented the results in custom PowerPoint reports through a Shiny app.
devtools, shiny, httr, officer, rmarkdown, future, promises, dplyr, ggplot2
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology and Healthcare.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Business Intelligence, Information Technology, Project Management, and Product Development.
Skills
R Very Good Knowledge.
Interactive Web Applications: Shiny, Bslib, Golem, Rhino
Ai & Chatbots: Openai, Mirai
Package Development: Devtools, Usethis, Roxygen2
Machine Learning, Deep Learning: Mlr3, Tidymodels, Caret, Tensorflow, Vetiver
Data Preparation: Dplyr, Duckdb, Duckplyr, Data.Table, Purrr, Dbplyr
Data Visualization: Ggplot2, Plotly, Ggiraph
Unit Tests, Assertions: Checkmate, Testthat, Shinytest2
Reporting: Quarto, Officer, Rmarkdown, Knitr
Geodata: Mapgl, Osmdata, Leaflet, Sf
Web Scraping: Rvest
Api Requests: Httr, Httr2
Parallel Computing: Future, Furrr, Promises
Api Development: Plumber
Data Processing/Analysis Pipelines: Targets
Reproducibility: Renv, Box
Deployment: Shinyproxy, Docker, Ci/Cd, Aws Ec2
Sql Good Knowledge.
Subqueries, Joins, Grouping & Aggregation
Excel Good Knowledge.
Formulas & Functions, Data Visualization, Pivot Tables, Power Query, Vba
Other Docker, Aws, Javascript, Html, Python, Latex, Git.
Languages
Education
TU Dortmund
M.Sc. Econometrics · Econometrics · Dortmund, Germany · 1,1
University of Passau
B.Sc. Business Administration & Economics, focus on Accounting, Finance & Taxation · Business Administration & Economics · Passau, Germany · 1,1
Statistics
Experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Stefan is based in Tittmoning, Germany.
Stefan speaks the following languages: German (Native), English (Advanced), Spanish (Intermediate).
Stefan has at least 5 years of experience. During this time, Stefan has worked in at least 7 different roles and for 4 different companies. The average length of individual experience is 1 year and 8 months. Note that Stefan may not have shared all experience and actually has more experience.
Based on recent experience, Stefan would be well-suited for roles such as: Dashboard for Interactive Data Analysis, Automated Reporting System, Shiny Apps for Data Processing.
Stefan's most recent position is Dashboard for Interactive Data Analysis at LennardtundBirner GmbH.
In recent years, Stefan has worked for LennardtundBirner GmbH, IQTIG, Roche Diagnostics GmbH, and Internal Project.
Stefan is most experienced in industries like Information Technology and Healthcare.
Stefan is most experienced in business areas like Business Intelligence, Information Technology, and Project Management. Stefan also has some experience in Product Development.
Stefan holds a Master in Econometrics from TU Dortmund and a Bachelor in Business Administration & Economics from University of Passau.
The availability of Stefan needs to be confirmed.
Daily rate distribution
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Average rates for similar positions
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The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 7 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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