Skills you need to be a api 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 api developer — not mastery, and not a passing acquaintance.
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RESTful API design
Essential
Designs consistent, versioned endpoints the frontend and partners consume.
Strong -
Python
Essential
Builds and maintains the core backend services and integrations.
Strong -
PostgreSQL
Essential
Models data, writes performant queries, and handles migrations.
Strong -
Docker
Essential
Packages and ships every service the team runs.
Strong -
Automated testing (pytest)
Important
Writes integration and contract tests to prevent regressions.
Strong -
Git
Important
Manages feature branches, code reviews, and release tags.
Strong -
OpenAPI/Swagger
Important
Documents APIs so consumers can generate clients automatically.
Working -
CI/CD pipelines (GitHub Actions)
Useful
Maintains the workflows that lint, test, and deploy services.
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.
- Python
- PostgreSQL
- Docker
- Automated testing (pytest)
- Git
- OpenAPI/Swagger
Then this
The rest of what the role is assessed on. Harder, and it builds on the foundation above.
- RESTful API design
What sets you apart
Not what gets you hired, but what separates doing the job from being trusted with it.
- CI/CD pipelines (GitHub Actions)
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 api developer