Manual QA Engineer
Core
Manual QA Engineer ensuring stability of a payments platform during frequent releases and hotfixes via risk-based testing and API validation.
Role type
Manual QA Engineer (API-heavy)
Builds
Payments platform features and critical payment routes
Domain
Fintech / Payments
Deliverable
production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work
Required skills
Manual testing fundamentals, API testing (Postman/Newman/curl), SQL (PostgreSQL), log/monitoring analysis (Grafana/Kibana/Sentry), risk assessment
Preferred skills
PSP experience (Stripe/Adyen), 3DS/SCA flows, test automation frameworks (pytest/Playwright), network tokenization
Technologies
Postman, Newman, Swagger, OpenAPI, PostgreSQL, Grafana, Kibana, ELK, Sentry, Stripe, Adyen, PayPal, Braintree, Worldpay
Responsibilities
Validate new features, fixes, and hotfixes across Web UI and APIs; define test scope based on financial/customer impact; test REST APIs, async flows, and webhooks; verify state transitions and side effects in PostgreSQL; maintain and improve smoke and regression suites; convert production incidents into regression cases or monitoring checks.
Seniority
Mid-level (3+ years)