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What a data engineer does, what a typical data project looks like, which tools matter, how the role compares with a data scientist and what it pays in Poland.

What Polish engineers actually charge by stack and seniority, the four things a vendor rate carries beyond that, three ways you will be billed, and five questions that separate a comparable quote from a number you have to trust.

Where the testing market actually sits today, how manual work differs from automation, what a test automation engineer earns, and four steps into the profession without a computer science degree.

Bands from 3,500 recruitment conversations: B2B and employment rates by technology, where the curve still climbs, what the architect level pays, what the numbers on each contract actually contain, and four things that work in negotiation.

The role explained through what it is not, the split of responsibility between Product Owner, Scrum Master and the team, and 2026 salary bands with the reason a senior earns the same as a mid.

The profession described by a practitioner from corporate banking: the five stages of work on a feature, five specialisations, B2B rates by technology, and three directions after senior level.

The market seen from a recruiter's chair: why 52 percent of openings are senior roles, which roles clients ask for most, where pay still grows double digit, and whether this is a downturn or a correction.

The role described by an analyst working in banking: what actually takes the time, which skill decides promotion to senior, salary bands from the IT Talent Trends 2026 report, and three realistic routes in.