I've been in your shoes. I've actually worked several karma spells, with almost a zero percent failure rate.
If the discrimination is illegal, you may wish to pursue that avenue, in addition to your spell work.
Unfortunately, (chances are) if you perform a karma spell your adversaries will suffer. This is the nature of karma. In my experience, however, suffering is not always bad. With suffering comes empathy, wisdom, and foresight.
If this is what you seek, go for it. But they may not equate their suffering with yours right away, if ever. And, in fact, the karma that revisits these people may be for something that has nothing to do with your situation. No karma spell I've ever cast could control the lessons that needed to be learned by the recipient of the spell.
I truly hope this situation has not actually ruined your career. And I hope this information helps, for whatever it is worth.
In love, truth, and light.