Most Big Tech companies don't employ dedicated people to do testing (eg QA, SDET). Ones that do: it's frequently for hardware or software released monthly or less frequently.
It's not because they don't care about quality: but because they found more efficient ways to get to it.
It's not because they don't care about quality: but because they found more efficient ways to get to it.
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There's also a closed source managed service, which is updated continously. For this, we only rely integration tests + monitoring.
- Internal teams building and operating CI/CD, testing tools/platforms
- Integration test platforms that allow complex test scenarios
- Ways to (safely) test in prod
- Realtime monitoring & alerting