Reference

1 Samuel 16-17

The Bible is full of stories, especially in the Old Testament. 

In those stories we find that a "God encounter" can happen anywhere; God is not restricted to influencing our lives only on Sundays and/or at church.  He will be with us always and everywhere.  

We also find mention of God being involved in peoples' jobs.  God can use what we are doing, even the seemingly insignificant duties, and enable us to build up skills He can use later in our lives.  If God has equipped you with a skill or talent, we should look for ways to serve Him.  Do all things for the glory of God. 

It's not all about our skills, it is most important to have a heart for God and be faithful in all parts of our lives.  Combined, the Lord will be able to use you to bless many.