After receiving my application online, a recruiter called me and asked a few clarifying questions. We scheduled a 30-minute call with the hiring manager. After a seemingly very smooth interview with the hiring manager, got a letter a few days later that my application was not selected for further consideration for the job in question. "The final decision came down to minor details". I wasn't given any test task/case study either so I wasn't given the possibility to present my skills. I respectfully asked to elaborate a bit more on what those are, so I could do better in the future but got no feedback in return.