Start with the decision
A metric matters only when it changes what someone understands, prioritizes or does next.
About / Sajid Hasan Sifat
DATA SHOULD
HELP PEOPLE
DECIDE.
I’m a Senior Data Analyst based in Dhaka, working remotely across product, growth and business problems.
My work sits between analysis and building: understanding behavior, defining useful metrics, creating decision systems and turning repeated questions into reusable data products.
The short version
ANALYST.
BUILDER.
WRITER.
I studied Computer Science at AIUB and built my career through analytics roles spanning ecommerce, education technology, business intelligence and product analytics.
Professionally, I work with SQL, Python, cloud data warehouses, BI tools, product-event data and experimentation. The interesting part is rarely the query itself. It is deciding what should be measured, why a number moved and what someone should do with that information.
Outside my day job I build things such as TaxHishab.com ↗, browser analytics tools, public dashboards and data experiments. I also write about analytics, technology, Bangladesh and whatever rabbit hole is worth researching properly.
01HOW I
HOW I
WORK
Four principles that show up repeatedly in my analysis and side projects.
Make the work inspectable
Definitions, assumptions, sources and limitations should be visible enough that another person can challenge the analysis.
Build beyond the slide
When a repeated question can become a dashboard, tool, automation or small product, I prefer to build the reusable thing.
Stay curious
Some of my best projects begin outside a formal brief: browser extensions, calculators, public-data experiments and long-form research.
02WHAT I
WHAT I
FOCUS ON
The themes that connect most of the work on this site.
Product analyticsBusiness intelligenceGrowth analyticsCustomer behaviorData productsAutomationExperimentationData storytelling
03THIS
THIS
WEBSITE
A portfolio, but also a place to publish useful work in full.
WORK
Case studies, dashboards and projects that show how I approach analytical problems.
Explore work ↗WRITING
Original articles, research, tutorials and data stories published directly on this domain.
Read writing ↗INTERACTIVE
Tools and experiments such as World by Numbers that are meant to be used, not just viewed.
Open World by Numbers ↗