WSO2 Certified Ballerina Developer - Swan Lake
Target audience
This certification is for developers with intermediate knowledge of and hands-on experience with Ballerina Swan Lake.
Prerequisites
We recommend completing the Ballerina self-paced training on the WSO2 Online Training Platform.
Competencies
A WSO2 Certified Ballerina Developer can:
- Design, develop, and deploy Ballerina applications using clean, idiomatic code.
- Build secure, high-performance APIs and integration flows across systems and protocols.
- Handle errors, transform messages, and secure integrations in Ballerina.
Exam content
This exam is based on Ballerina Swan Lake.
Candidates should have a working knowledge of the following areas:
| Area | Approximate % of questions |
|---|---|
| Network-oriented programming and integration protocols | 35% |
| Ballerina fundamentals and package management | 16% |
| Testing, observability, and IDE tooling | 14% |
| Database and service connectors | 11% |
| Data-oriented programming | 10% |
| Concurrency and Java interoperability | 10% |
| Security | 4% |
Exam format
Delivered online
40 multiple-choice questions
120 minutes
Proctored
Exam cost: Free
The exam is activated and instructions are sent within two working days of signing up. Candidates receive two attempts for each registration. Please make sure to read the Examination Guidelines before signing up.