API & Integration Quality Engineering
End-to-end validation of REST and GraphQL services, authentication, request/response schemas, business rules, database state and downstream integrations.
Problem
UI-only testing can miss contract, transformation and persistence failures between services.
Architecture
Layered API tests with reusable clients, positive and negative scenarios, schema validation, SQL verification and CI-friendly regression execution.
Challenges
- Tracing failures across integrated systems
- Maintaining reliable regression data
Solutions
- Validated each integration boundary independently before end-to-end verification
- Used API and database checks to isolate failures quickly
Tech Stack
REST APIGraphQLPostmanRest AssuredSQLCI/CD