Freshness Watermarks Belong on Every Row, Not the README
The most common freshness design I see — in my own old code included — is a single stamp at the top: a README that says "last updated 2026-10-01", a…
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AI hiring this week: Anduril added 60 net roles, ElevenLabs cut 47 (22,020 open roles tracked)
Every day I scrape the career pages of 276 AI and tech companies and diff the open roles week over week. This is the diff for 2026-10-04 to 2026-10-…
AIoT in Pharma Manufacturing: It's Mostly a Data Plumbing Problem
If you've ever looked at the systems inside a pharmaceutical plant, the first thing you notice is that there's no shortage of data. Machines log ope…
How to Convert XML to PARQUET?
To Convert XML to PARQUET format can be achieved either through automated enterprise tools or customized ETL scripts: Automated Enterprise Software:…
Best Collaborative Data Modeling Tools: SQLDBM Team Features & Alternatives Compared
Data modeling used to be a solo sport. One architect, one desktop app, one giant ERD file emailed around for review. That world is gone. Modern data…
Ontology, Gates, and a Human Backstop: Three Defenses for Enterprise AI That Don't Spin Empty
Ontology, Gates, and a Human Backstop: Three Defenses for Enterprise AI That Don't Spin Empty 2026-10-05 Enterprise AI usually lands in one of two e…
A Dashboard Is Not a Report. It Is an Argument About Definitions.
Lina runs operations for a furniture manufacturer in Foshan. Two years ago she sent me a screenshot at 7:40 in the morning: two dashboards, side by…
Finding double-billed shipments before the carrier's invoice ages out
Carrier invoices contain duplicates. Not many, and not usually in bad faith, but enough that any operation shipping across several carriers and seve…
How to Automate Fleet Emissions with J1939 Telematics and Continuous Diagnostics
How to Automate Fleet Emissions with J1939 Telematics and Continuous Diagnostics If you engineer products around the logistics or transit industry,…
Cutting AWS Storage Costs: S3 Tables vs. S3 Express One Zone
Last year, my team was fighting the "small file problem" in a standard S3 bucket. We were running massive Glue jobs that spent 40% of their executio…
From Raw Data to Executive Decisions: Building the JCars Logistics Power BI Dashboard
Data without structure is just noise. In this project, I am building a complete, end-to-end Business Intelligence solution for JCars Logistics, a co…
A Case for JCars Logistics Business
Introduction Building a dashboard is only one part of a successful Business Intelligence (BI) project. Before a visual can provide meaningful insigh…
Building an ETL Pipeline with Python, Docker, and PostgreSQL (And Debugging the Real Errors)
Most ETL tutorials show a perfect, frictionless flow. The reality? My pipeline turned into a festival of KeyError's , outdated schemas, and API payl…
How to Build an AI-Ready Customer Profile
Connecting an AI application to a CRM or a customer data warehouse is relatively easy. The harder part is deciding what the AI should actually recei…
From Messy Rows to Management Decisions: Building a Power BI Solution for JCars Logistics
JCars Logistics sells and delivers vehicles across Kenya. Someone handed me one flat CSV, 276 rows and 32 columns, and asked for three things: an ex…
ersioning Business Semantics for Enterprise AI
Your SQL can be perfectly reproducible while your business meaning is not. Suppose a user asks: What was revenue in Q1? Your data agent resolves Rev…
Data Modelling, Relationships and Joints in Power BI
Introduction A Power BI report is only as reliable as the model beneath it. Data modelling is the process of organising tables, keys, relationships,…
Power Bi: Data Modelling, Relationships and Joins
Introduction Picture this measures that return the wrong totals, slicers that don't filter what you expect, and reports that slow down as data grows…
# Tableau vs Power BI: A BI Developer’s Practical Comparison
If you've worked in Business Intelligence for a while, you've probably been asked this question: Tableau or Power BI — which one is better? My answe…
OLTP vs. OLAP: Understanding the Foundation of Modern Data Systems
Modern organizations generate enormous amounts of data every day. Every customer purchase, bank transaction, online order, employee record, product…
The Snowflake Iceberg Pivot: Why Your Data Warehouse Should Be a Storage Engine
Ninety percent of the "performance" you pay for in Snowflake is actually just a tax on your inability to move your data. If you’re like most enginee…
Masa Depan Manajemen Data: Mengenal Konsep Data Mesh yang Revolusioner
Dalam dunia IT yang berkembang pesat, pengelolaan data dalam skala besar seringkali menjadi tantangan tersendiri bagi perusahaan teknologi global. J…
Mengenal Data Mesh: Revolusi Arsitektur Data Modern untuk Skalabilitas Bisnis
Mengenal Data Mesh: Revolusi Arsitektur Data Modern untuk Skalabilitas Bisnis Pernahkah Anda membayangkan sebuah organisasi besar dengan ribuan tabe…
Stop trying to make Airflow work for Medallion pipelines
The "universal orchestrator" is a myth that keeps data engineers awake at 3:00 AM chasing zombie DAGs and orphaned Spark clusters. You’ve been told…
How Databricks Serverless Compute Cost My Team $14k in One Weekend
It’s Sunday, 2:14 AM. The PagerDuty alert hits my phone with that specific, jarring frequency that makes your stomach drop before you’ve even opened…
Power BI: Data Modelling, Relationships and Joins
Introduction When I first approached a health dataset in Power BI, I was more interested in the dashboard than the structure behind it. I wanted to…
Hotel Data vs E-commerce Data: Why They're Nothing Alike
If you've ever built an e-commerce data pipeline and assumed hotel data would follow the same patterns — you're in for a rough ride. I learned this…
Power BI Technical Article: Data Modelling, Relationships & Joins
Introduction Power BI transforms raw data into actionable dashboards and reports, but the quality of these outputs depends heavily on initial data p…
# Building an Interactive Excel Dashboard for E-commerce Product Analysis: A Case Study of Jumia Products
How I turned a raw marketplace export into an interactive dashboard, and what it revealed about discounting. Introduction Jumia's marketplace team h…
Data Modelling, Relationships & Joins
Data Modelling in Power BI Extracting reliable insights from a dataset requires a structured framework designed to guarantee accuracy, optimize perf…