There are many job options out there for Sommelier grads from organizations with respected credentials. The obvious ones that come to mind are staff Sommelier at a restaurant, cellar manager/buyer, wine sales at a distributor — these are all direct selling/buying of wine in the hospitality sectors.
You can also build a career and business as a wine list consultant — someone who researches and develops wine lists tailored to the cuisine of a specific restaurant. That requires you to build a relationship with the distributors and importers as well.
Some Sommeliers also branch out into teaching, either local wine appreciation courses or wine tours. This can be a fun way to share your passion for wine with budding wine lovers.
Regardless of your choice, having the base-level Sommelier Certification is important and will help open doors. Just be sure to get certified from an organization with respected credentials. Hope that helps.