In informal talk, no probs means you are happy to do what someone asked, and you can do it easily — there will be no trouble. It is a light, friendly yes, like no problem. You will hear it in messages and casual speech, especially in British and Australian English, not in a job interview. Though actually, the same spelling probs is also a very common short form of probably (“I’ll probs be late”). That is a different word that looks the same. This entry is the “no trouble” one, from problem. The “probably” one is probably plus a casual -s. No probs answers a request; I’ll probs be late guesses at the future.