A little about me
I build things.
I ask better questions.
I’m Hafizi, a Malaysian developer turned data analyst. My work lives between two questions: does it work well? And what can we learn from it?
Curious by nature.Grounded in Malaysia.
The through line
From building
to understanding.
I started out in software engineering, making the systems people rely on every day. Over four years, I worked across products, APIs, integrations, and databases—learning how the right foundations make everything else possible.
Now I’m taking that systems perspective into data analytics: cleaning the messy details, finding the signal, and turning it into something a team can act on. It’s a new lens on a familiar curiosity: how do we make things more useful?
That connection is the part I enjoy most. Good analysis needs dependable data; good software makes better data possible.
A recent investigation 01
When a “unique” order ID wasn’t.
While exploring a retail dataset, I found thousands of reused order IDs hiding in the source data. By creating a reliable composite key and rebuilding the analysis, I uncovered discounting patterns behind overall losses and a surprising gap in delivery reliability.
See the work in contextOne better key changed the story the dashboard could tell.
A toolkit in two directions
Different tools.
One useful outcome.
Move between what I work with day to day and what I’ve carried with me from software engineering.
More about my experience- 01SQL
- 02Python · Pandas
- 03Power BI · DAX
- 04Tableau
- 05Excel & Sheets
- 06BigQuery
An unexpected starting point
Nuclear engineering
at Universiti Teknologi Malaysia.
My path into tech wasn’t a straight line. Engineering taught me to think in systems, test assumptions, and stay curious when the answer isn’t obvious. I still bring that mindset to every dataset and every product.