Configuring Cypress and Playwright regression suites testing distributed server integrations to catch memory leaks and performance regressions.
A cloud infrastructure startup had accumulated significant technical debt in their test suite — a mix of flaky Cypress tests and manual QA cycles that created high-confidence releases without actually catching memory leak regressions introduced during their rapid feature sprint cycles.
We rebuilt the test layer from scratch using Playwright for E2E browser tests and Jest for unit and integration coverage. k6 load testing scenarios simulated sustained traffic and burst conditions to surface memory growth patterns. All test suites were wired into GitHub Actions with failure annotations and performance regression thresholds — a build would fail if memory growth exceeded a configured baseline between releases.
The new test infrastructure caught 3 memory leak regressions in the first month that had passed through the prior manual QA process. Cloud compute costs dropped 40% after identifying and patching inefficient resource allocation patterns that the load tests exposed.
ⓘ This is a concept and illustrative case study. It represents Mehrium's engineering design approach and capability depth — not a verified or named client engagement. No client relationship or endorsement is implied.
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