Welcome to my portfolio
SJ OlsenData Analyst
From labs to dashboards — Chemical engineer with 6+ years of hands-on data work — Python, SQL, and a scientist's instinct for finding what the numbers are actually saying.
Data Analysis & VisualisationStatistical Modelling (Python / SQL / Excel)Scientific Research & ExperimentationDashboard & Reporting Design
What I can do
Skills
01
Data Analysis & Insight
Exploratory analysis, regression modelling, and anomaly detection on complex datasets — turning raw numbers into clear, evidence-backed conclusions.
- EDA
- Regression Modelling
- Anomaly Detection
- Statistical Analysis
- Python
02
Data Infrastructure & Engineering
Building and querying structured databases across PostgreSQL, MySQL, and Snowflake, with cloud data handling via AWS and reproducible, audit-ready pipelines.
- SQL
- PostgreSQL
- Snowflake
- AWS
- Data Pipelines
03
Reporting & Visualisation
Translating analytical outcomes into structured dashboards and reports using Tableau and Python — built for technical and non-technical audiences alike.
- Tableau
- Matplotlib
- Data Visualisation
- Reproducible Reporting
- Stakeholder Communication
Ready to work!
