On average, I would say a senior would get between 3k and 4k euros in RO, at a regular company. It depends a lot on city too. In bucharest salaries should be higher.
Obviously Amazon thinks that mortages can be paid just by flexing their employee badge.
On a OSS sideproject, I'm working on a DI container for TypeScript that can autowire interfaces, Array of types and generics.
Since the type information is erased at compile time, it uses the compiler API to extract the data needed and generates TS code for the interface and constructor mappings.
The library is on GH, but not really much to show. I've posted on /r/node and it got some positive reactions, but it didn't got that much attention.
My worst experience was with a PHP app (no framework), 60K LOC per file, 6 dimension arrays, variables and comments in 3 different languages, elseif statements spread over 2-3k LOC, no kind of separation of concerns (HTML mixed with php, db calls, etc).
It was a 3 months nightmare with an arrogant as fudge client/developer.
Obviously Amazon thinks that mortages can be paid just by flexing their employee badge.