Work
Forecasting Pipeline & Monitoring App
Automated forecasts for sales data: preparing and validating the data, training and comparing time series and ML models, and surfacing deviations instantly in a monitoring app.
Go to project pageI make data useful.
Timmy Lu · Data Analyst & BI Developer
I bring together data analysis, business intelligence and automation: I prepare data so people can trust it, build dashboards teams make decisions with, and automate whatever repeats – more and more often with AI.
Projects
Work
AI-Assisted Product Data Analysis
An LLM workflow checks product data from several online shops for missing or incomplete attributes – an analysis that used to be done by hand now takes a fraction of the time.
Work
BI Dashboards
KPI cockpits for e-commerce and sales with plan and prior-year comparisons, plus a dashboard for influencer campaigns – from the first requirement to a report that is up to date every day.
Go to project pageWork
Jira Data into the Data Warehouse
Jira data flowing into the data warehouse automatically: queried via REST API and JQL, loaded incrementally, staged and merged into Exasol – as the basis for Qlik reports.
Work
API Data Integration & Reporting
Connecting external data sources via REST APIs, cleaning and standardizing the data – and making it usable in ERP, data warehouse and BI reports.
Work
Coding Workshops with a Robot
Learning to code with a real robot: making it walk, talk, play music, blink its LEDs and adding sensors – in internal workshops and at school events like Girls’ Day.
Go to project pageUniversity
Bachelor’s Thesis: Graph Neural Networks
Purchase prediction with graph neural networks: customers and products as a temporal graph, link prediction with temporal GNNs and graph attention.
Go to project pageUniversity
ImmoCare
Team project
Building management software developed by a team of three. My part: user and task management – from the interface through gRPC services down to the database, including file storage, comments and a custom date picker.
Go to project page
- .NET MAUI App
- gRPC
- ASP.NET Core
- SQL Server
Own projects
DealBot
Work in progress · simulation only
A trading system that tests strategies on real market data: data pipeline, backtester, paper trading bots, model tournament and web dashboard. Runs as a simulation only.
Go to project page
Design mockup with invented example numbers – not real results.
More projects
2021
Registration monitoring
Analysis tool for the daily log files of a customer registration on Windows devices: counts events per device model, calculates error rates (above 1 % marked red), draws charts – with a user interface and an automatic weekly report by email.
2022
Battery Observer
Test program for notebook batteries: switches Wi-Fi sockets on and off automatically so charging cycles run unattended, and records the measurements as a chart and CSV. My part: the interface with charts and dark mode, and the user guide as a web page.
2025
Pallet space simulation
Calculates from inbound lists how many pallets arrive at the warehouse per calendar week – including pallet factor and two-person handling, as a Python script running inside the database.
2024
Choosing a marketplace middleware
Market research and evaluation of marketplace middlewares as an alternative to the current provider: defining criteria, comparing providers and their marketplaces, preparing a recommendation.
2025
Sales analysis with Google Trends
Why do sales of a product group go up? Search interest compared with sales, traffic sources and regions analysed – and the result prepared for the business team.
Experience
since 04/2026
Own projects
Essen
- Working on DealBot and other projects
- Open to new opportunities
04/2025 – 03/2026
Junior Data Analyst
medion GmbH, Essen
- Designed and built Qlik reports and KPI dashboards based on business requirements
- Provided data from the data warehouse via SQL, maintained data models and load processes
- Validated KPIs in SAP ERP and reconciled them with the data warehouse
- Developed and ran a forecasting pipeline for sales data in Python
- Opened up new data sources via APIs
08/2021 – 03/2025
Dual Study Program, Computer Science
medion, Essen
- Android and software development
- Operation & Analysis
- Data warehouse team
- Operation & Analysis
- Built and maintained ETL processes in a data warehouse environment (SAP context)
- SQL transformations and quality checks in an Exasol environment
- Statistical analyses of patterns and trends
- Coding workshops for colleagues and schools
09/2021 – 03/2025
B.Sc. Computer Science · Grade 1.4
FOM University of Applied Sciences, Essen
- Focus: big data & data science, artificial intelligence, database management, web technologies
- Bachelor’s thesis on graph neural networks
Skills
Core
Analytics & ML
Automation
Also
Ways of working
Languages
Beyond data
Dance
Hip-hop and urban dance – training, performances and competitions.
Music
Piano since childhood, plus guitar and my own songs in FL Studio – somewhere between indie and bedroom pop.
Gaming
Self-hosted game servers and mods on my own cloud VM.
Let’s talk.
I’m open to full-time roles in data analytics, BI and AI engineering – remote preferred, hybrid is open for discussion.
