When SP-API feeds, catalogs, or finance flows break silently, reconciliation gets expensive. We embed deterministic tests, probes, and runbooks so regressions surface before merchants feel them.
Automated suites catch schema drift early. Structured exploratory sessions stress multi-tenant edge cases before launch. Lightweight performance checks flag queue backlogs tied to Listing Item updates or ads pulls. Alerts pair with escalation paths—not vanity dashboards.
Contract tests vs OpenAPI stubs, parity checks between sandbox + production payloads, deterministic SP-API report fixtures, webhook replay drills.
Responsive verification, RTL/LTR coverage when needed, alert-driven smoke tests triggered post-deploy.
Queue saturation modeling, Postgres slow-query baselines, canary workloads for ingestion spikes tied to promotions.
Trace IDs across Laravel / Node queues, synthetic checks for critical SKU sync paths, tabletop exercises alongside on-call rotations.
We map brittle flows, backlog automated coverage, plug tests into CI, and tutor your team so quality stays predictable after handoff—or provide fractional QA leadership on an ongoing basis.
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