Opensignal

Mid QA Engineer

Opensignal

Warsaw, POLFull timePosted Jun 17, 2026

Job description

We are looking for a Mid QA Engineer to join our QA team and support quality across data-driven and web applications.

In this role, you will initially focus on database test analysis and development, working with tests written in Python and validating data using SQL. Over time, the role will also expand into web application testing, including Playwright/TypeScript automation and manual feature testing.

This is a good fit for someone who enjoys technical QA work, understands testing fundamentals, is comfortable working with data, and can use AI tools effectively in day-to-day engineering tasks.