To get a job or promotion, one has to focus on his/her work with calm mind. Vastu can help you to keep your mind calm by following certain rules, which will help you to focus in your work. These rules are based on 5 basic elements of nature and scientific.
Nothing else can get you job/promotion.
Good luck.
Note: if you can send your home plan, one can analyse it from Vastu point of view and give proper guidance.