From reading the job description, it's clear that you're looking for someone supportive of the team members and understands the degrees of managing an executive's busy day and can take charge in making sure every day has a clear plan and every plan is clearly communicated.
During my time at IGIHE LTD(a communication firm based in East-Africa), I served as a coordinator to three different departments while also serving full-time as a social media manager and content creator.
While supporting three different departments, I practiced different personal and professional skills for example; time management, improved my copy-writing skills, and most of all commitment to excellence. I was recognized as the most supportive team member which allowed directors of different departments to truly excel in enacting contingency plans.
In my experience as an assistant/coordinator, I understand the importance of being proactive. In addition to expert myself in scheduling meetings, preparing well-tailored agendas, and managing travel arrangements, I have also developed the ability to create effective plans and alternative plans.
What I bring to any Executive is my ability to give a hundred percent to anything I work on, which supports an executive to focus on all other needs of the company. I understand that we only grow by learning, hence why I am always researching and ready to learn ways to improve and be of greater importance to the company I'm committed to.