Will A Gt 1030 work with my Inspiron 530s

If any of the new cards would work, it would be that one. The problem is with older systems like that no one can promise you it will work. Some of the older systems work with the new generation cards, some don't. Dell and other companies change small things in their configurations, so it's impossible to predict.

An alternative is to buy a card like a GT 730 DDR5. It's slower than a 1030, but due to being older tech it will be compatible. It also is a low power demanding card and comes in small low profile form factors.