Skills you need to be a bi developer
8 skills a hiring manager would actually test for, each with the level this role expects and what it is used for. Not a syllabus — the shape of the job.
Build my path to this roleUpskili checks what you can already do, then sequences only what is missing. No account needed.
What the role requires
Ordered by how much the job depends on it. The bar is the proficiency expected of a competent bi developer — not mastery, and not a passing acquaintance.
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SQL
Essential
Writes complex queries, CTEs, and window functions for data transformation and analysis.
Deep -
Power BI
Essential
Builds interactive dashboards and paginated reports for business stakeholders.
Strong -
Data modeling
Essential
Designs star schemas and dimensional models for reporting performance.
Strong -
ETL development
Important
Builds and maintains data pipelines using tools like SSIS or Azure Data Factory.
Strong -
DAX
Important
Creates calculated measures and time intelligence in Power BI models.
Strong -
Requirements gathering
Important
Translates business questions into technical report specifications.
Strong -
Python
Useful
Automates data prep and performs advanced analytics beyond SQL.
Working -
Git
Useful
Versions code and collaborates on shared analytics repositories.
Working
An order worth learning it in
A list of ten skills is the same unhelpful answer a catalogue gives, just sorted. This is where to actually start.
Start here
Essential to the role, and reachable from a standing start. Everything below rests on these.
- ETL development
- DAX
- Requirements gathering
Then this
The rest of what the role is assessed on. Harder, and it builds on the foundation above.
- SQL
- Power BI
- Data modeling
What sets you apart
Not what gets you hired, but what separates doing the job from being trusted with it.
- Python
- Git
You almost certainly have some of this already.
That is the point of starting from the role rather than a course. Upskili checks what you can do, then builds a path across only the gap.
See my path to bi developer