Nick Wang
I do data analysis: pulling data, building dashboards and building models, with SQL, Tableau and Python. I work freelance, taking on data-analysis projects for clients. I also write code with AI: I’ve built five websites from scratch, and I’ve written 288 notes on nickwang.xyz. I live in Ottawa.
- 01Data analysis and dashboardsEverything from pulling and cleaning data to KPI dashboards. Now on analysis projects for clients, in SQL and Tableau.
- 02ModellingTime-series forecasting, customer churn, customer segmentation. One segmentation project cut acquisition cost by 14%.
- 03Quantitative financeMy master’s is in mathematical and computational finance. I wrote market-lens, which scores market risk after each close.
- 04Websites and tools built with AIFrom scratch to launch, five websites: Wuhua Learn, Wuhua, Mental Models, Recipes, Memes.
Route: China → Paris → Montreal → Ottawa
01China
2013Moved to Paris for university
02Paris2013–2019
2013–16BSc in computer scienceSorbonne University
2016–18MSc in machine learning and big dataSorbonne University
2018–19Research analyst, data analysisLIMSI lab, CNRS
03Montreal2020–2023
2020–23Master’s in mathematical and computational financeUniversité de Montréal
04OttawaNow
2024Data analystArima · Toronto
2024–FreelanceData-analysis projects for clients
What I’ve done
01Data analysis and dashboards
- KPI dashboardsAnalysis projects for clients, in SQL and TableauFreelance · since 2024
- Sales dashboardsKPI dashboards for sales and marketing; data preparation, debugging and tuning in T-SQLArima · 2024
- +12%Efficiency: product mapping, loading and validation automated with stored proceduresArima · 2024
- Exploratory analysisData extraction, cleaning and exploratory analysis in PythonLIMSI lab, CNRS · 2018–19
02Modelling
- −14%Acquisition cost after customer segmentationFreelance client project · 2025
- +18%Lead conversion, same segmentationFreelance client project · 2025
- +15%Customer retention, with churn prediction and next-best-product models in PythonFreelance client project
- +30%Time-series forecast accuracy, compared with baseline modelsLIMSI lab, CNRS · 2018–19
03Quantitative finance
- Master’sMathematical and computational financeUniversité de Montréal · 2020–23
- market-lens →After each close, five rules score the market as low risk, neutral or high risk; a new state counts only after 5 trading days in a row. It describes; it does not predict.Market page
- 13 notesOn financenickwang.xyz
04Websites and tools built with AI
Tools I use
Python (pandas, scikit-learn, PyTorch, TensorFlow) · SQL · R · Tableau · Power BI · Azure (SQL Database, Data Factory, Databricks) · JavaScript (React, Node.js) · Linux