My specific job, probably not to anything in day to day life but what I do has an impact on our understanding of the universe. CERN itself is more likely to have an impact on day to day life through technologies they develop, such as the world wide web and proton therapy for cancer.
In the space industry, things take many many years to develop and have an impact. My first project at RAL Space was to develop a device which uses quantum physics to measure gravity very very accurately. The technology isn’t ready yet, but hopefully one day it’ll be used to help find aquifers for water supply and monitor sea level rises due to climate change.