Data courses
Turning a question someone asked in a meeting into a number they can act on, and being able to defend it.
8 free data courses, each ending in a live simulation week and a portfolio of artifacts you keep.
Analytics Engineer
Build the layer of tested, documented data models that dashboards and analysts rely on: settle what a metric means and who owns it, fix test failures at their real source, catch stale data before it reaches a board pack, make models faster without losing late changes, and release changes safely.
20 lessons·4 artifacts·Pairs with dbt Analytics Engineering Certification
Data Analyst (SQL + Excel + BI)
Take a vague stakeholder request, clean the messy data behind it, answer it correctly in SQL, and hand back a dashboard with its spec and a one page memo somebody can act on.
29 lessons·6 artifacts·Pairs with Microsoft PL-300
Data Engineering Foundations
Learn to move and shape data reliably: build pipelines that can be re-run safely, load incrementally, catch bad data before anyone reports on it, and tell people honestly when yesterday's numbers were wrong.
29 lessons·6 artifacts·Pairs with Microsoft Azure DP-900, then a provider data engineering certification
Energy Analyst
Cut energy waste across nine leisure centres for a week: find a night-time load that should not be there, catch a bill that charges for energy never used, build a case for pool covers, prove whether a new boiler saved anything, and report energy and carbon honestly.
20 lessons·4 artifacts
GIS Technician
Keep a water utility's map data right: fix a dataset that lands in the wrong place, repair a join that silently failed, geocode customer reports without hiding a neighbourhood, measure distances in the right projection, and make a map the board can trust.
20 lessons·4 artifacts·Pairs with Esri ArcGIS Pro Foundation
Healthcare Data / Reporting Analyst
Run a family practice's quality reporting for a week: define a diabetes measure so it cannot flatter, find a units error hiding in lab data, release data to researchers without releasing patients, show clinician results without misleading small numbers, and report an honest year-on-year change.
20 lessons·4 artifacts
Junior Data Scientist
Take a churn model from request to report at an online retailer: define what it predicts and why, catch the leak behind a too-good score, choose metrics by cost, test uplift properly, check privacy, hold a launch to evidence and watch it drift.
20 lessons·4 artifacts
Business Intelligence / Power BI Developer
Build the thing other people use without you in the room: a star schema model, relationships that filter the right way, a small library of correct DAX measures, and a multi page dashboard that answers a decision instead of decorating a wall.
29 lessons·5 artifacts·Pairs with Microsoft PL-300
Questions about data courses
Yes. Every course on CertClue is free, with no card and no trial period. You need an account to track progress and collect your artifacts, and that is the only gate.
8 live right now, holding 187 lessons and 37 portfolio artifacts between them. New courses are added regularly and appear here automatically.
No. Each course states its own level, and most of this catalogue starts at entry or beginner. A course assumes you can use a computer and read carefully, not that you have done the job before.
A completion certificate with a public verification link, and the artifacts you produced during the simulation week. The artifacts are the part worth showing an interviewer: they are the work, not a score.