Facebook's digital wallet Calibra has posted two new marketing vacancies (respectively for brand and media heads) or hinted that it might be preparing to launch its product. Both positions require at least 15 years of advertising and marketing experience and 10 years of leadership experience. A Calibra spokesman declined to comment further on the position, saying only that the company is expanding its existing team. In addition, LinkedIn information shows that at least two other Calibra employees currently have brand titles. According to the company's recruitment page, Calibra is hiring more than 30 positions in various departments.