First of all, you should know how to be a real leader. This position involves a great of management procedures, making leadership skills really necessary for it. For example, you should be a model for prioritization, coordination, collaboration, facilitation, organization, etc. Consequently, oral and communication skills make all the difference for an employer who wants to see that a candidate is not just solid on a technical background but he knows how to communicate with both CEOs of the organization and the staff under him in hierarchy.
The ability to work under stress, having a strict deadline and with limited resources to finish a project is also an important skill that employers want to see in their potential candidates. Finally, your problem-solving skills are really essential and your abilities to be process oriented individual are really praised and recommended.