Manual Testing Engineers for Release, Regression and API Testing

Expensive bugs live between pieces that each passed their own checks. A subscription charges on the wrong date because the shipping method and the billing cycle were tested separately. A fix for the German site breaks the Italian one that shares its templates. A change to a shared core reaches dozens of apps, and only the one nobody opened fails in the store. Developers test what they built, so these gaps belong to the person who tests the whole release.

Cortance reads a QA engineer's history for that kind of coverage. We look for test plans written from the requirements, regression runs before every release and API checks against the database rather than only the screen.

Releases our QA engineers have protected

Oleksandra P. tested a subscription commerce platform for brands that sell physical goods, covering subscription dates, shipment methods, addresses and quantities in TestRail. On a keg deposit app, she built automated API collections in Postman and UI checks in Ghost Inspector, and ran smoke tests against every new build in each environment.

Oleh Mor. worked in a large testing team on AUTODOC, an auto parts marketplace, running functional, smoke, regression, end-to-end and API tests. On another product, he was the only tester, writing the test cases, the bug reports and the test plan himself.

Dmytro P. tested a shipping platform for Etsy sellers: the order import from the Etsy API, rate calculation by dimensional weight and parcel creation with customs declarations. A user cannot check any of these calculations, and a carrier rejects the parcel when one is wrong.

How do you test a feature built on an AI model?

An AI feature rarely returns the same answer twice, so a test that compares exact text fails for the wrong reason. Dmytro P. also tested an AI conversation platform with long-term memory, voice messages, generated images and content moderation. Useful checks there look at properties. Does the assistant recall what the user said 50 messages earlier? Are unsafe requests blocked, and does each generation charge the right number of tokens? That is the QA judgment we look for when a client's product includes a model.

Manual, API or automation: who to bring in first

A product with frequent releases and no tester usually needs a manual and API tester first, because someone has to write the test plan before anything gets automated. Once the regression suite is stable and repeated every sprint, automation pays off. In our network, 34 developers list Playwright, Cypress, Selenium or Appium, and Marat Z. built the Playwright framework and Page Object Models that Ucraft's QA team used to test its website builder end to end. Tell us your release cadence and platforms, and we'll send a QA shortlist within 30 minutes.