There is no shortage of discussions on direct tech and scientific skills every person working in a tech job should have. There is <i>also</i> no shortage of discussions on the kind of soft skills which are hard to verify or quantify (teamwork, personality, independence etc.).<p>What about non-essential skills (for the position) that <i>are</i> a bit more verifiable? To give you one example: Would CEFR[1] language certificates (let's say equal to or above C1 level) in multiple languages be something you look upon favourably?<p>[1]: https://en.wikipedia.org/wiki/Common_European_Framework_of_Reference_for_Languages