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CS50's Introduction to Databases with SQL
Harvard · CS50 · SQL & databasesFrom Harvard: table design, queries and indexes, with lectures and hands-on problem sets. Entirely free.
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Junior Data Engineer
Data engineering path · Data & BIBuilds the pipelines that move data from systems into the data warehouse so analysts find it clean and ready. More programming than data analysis.
Open to new graduatesمهندس بيانات مبتدئ
What the job involves
- Builds ETL/ELT pipelines
- Designs data warehouse tables
- Monitors data quality and daily refreshes
- Writes SQL and Python for processing
- Works with cloud platforms such as Fabric and Databricks
Your path from this job
- Junior Data EngineerYou start as · 0–2 years
Builds and fixes small pipelines under supervision.
- Data Engineer2–5 years
Designs pipelines and the warehouse for a whole business area.
- Senior Data Engineer5–8 years
Sets platform standards and improves performance and cost.
- Data Architect8+ years
Designs the organisation's whole data platform.
Years are approximate and vary by employer. What matters is that each stage builds on the last.
Where you'd work
Large data-heavy companies: banks, telecoms, retail and tech firms.
Skills you need
Advanced SQLPythonData modelling (star schema)Cloud basicsGit
Tools of the trade
Microsoft Fabric / Azure Data FactoryDatabricksSnowflakeAirflowPython
Certification ladder
Tap any certification for details. You don't need them all: pick one per level based on where you work.
EntryStart here
IntermediateAfter about 2 years
AdvancedFor seniors
Get ready for this role
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