GAP

Gregorio Adri Prawira

Data AnalystData Scientist

Potrait photo.

About Me

I'm a Melbourne-based data analyst with over two years of experience in commercial and operations analytics and a Master of Data Science from Monash University.

I investigate root causes, improve data reliability and usability with data validation and automated reporting through dashboards which translate findings into business recommendations. Through my studies and projects, I also build and evaluate predictive models.

What I Can Do

What I Can Do

  • Data Quality

    Clean, validate and reconcile data.

  • Reporting & Dashboards

    Automate reporting and track performance.

  • Business Analysis

    Investigate root causes and explain findings.

  • Predictive Modelling

    Build and evaluate predictive models.

View Projects

Projects

City bus in front of buildings, illustrated by Storyset.
Illustration by Storyset / Freepik

Melbourne Bus Accessibility

I analysed bus access to Melbourne's industrial areas and built an interactive dashboard to reveal coverage gaps.

Tools

  • Snowflake
  • Folium
  • Altair
  • QGIS
  • Streamlit

Methods

400 m catchments · Nearest-stop analysis

~70% Industrial meshblocks outside 400 m bus catchments
Dashboard GitHub
Investment charts and financial data, illustrated by Storyset.
Illustration by Storyset / Freepik

Superannuation Early Warning

I built an APRA data pipeline to flag MySuper options at risk of bottom-quartile returns over the next four quarters, with archived predictions and drift monitoring.

Tools

  • pandas
  • scikit-learn

Methods

Random Forest · Feature engineering · Purged temporal validation

0.791 Historical final-test ROC AUC · 29 predictors
GitHub
A person climbing towards a career opportunity, illustrated by Storyset.
Illustration by Storyset / Freepik

BeyondReAim

I led the data workstream for a team-built career-readiness platform, preparing labour-market data, designing the database and supporting model development.

Tools

  • Python
  • SQL
  • PostgreSQL
  • Neon

Methods

Data validation · ERD design · Feature preparation

56Occupations Labour-market and skills data across four industries
Website

Skills

Tools and methods I've applied through professional experience, study and projects.

Programming & Data Wrangling

  • Python
  • SQL
  • R
  • pandas
  • NumPy

Databases & Data Modelling

  • PostgreSQL
  • Neon
  • Snowflake
  • BigQuery
  • ERD
  • Star Schema

Machine Learning & Statistics

  • scikit-learn
  • XGBoost
  • Random Forest
  • Regression
  • TF-IDF
  • Statistical Modelling

Visualisation & BI

  • Power BI
  • Looker Studio
  • Metabase
  • Excel
  • Streamlit
  • QGIS

Core Skills & Tools

  • Data Validation
  • Reporting Automation
  • Root-Cause Analysis
  • Feature Engineering
  • Spatial Analysis

Certifications

Microsoft Certified Associate badge

Power BI Data Analyst Associate

PL-300

Microsoft Certified

Issued

Data preparation, modelling, visualisation and analysis.

View Credential
Microsoft Certified Fundamentals badge

Azure AI Fundamentals

AI-900

Microsoft Certified

Issued

Foundational AI concepts and Azure AI services.

View Credential
Experience Hobbies