Perhaps 'Orchestra Master of Efficiency', 'Architect of Workflow', or even 'Master of Operational Excellence' would be a more appropriate title ...
You will work with the entire team. For example, with our Operations Manager you plan sessions with our clients, with the Director you take care of contract management or invoicing, and with the researchers you create a contact list for the market research.
You will make an impact on our operations and our customers will be noticeably better served by your role in our organisation. We therefore expect you to be very proactive and to have some experience with office management. It is an advantage if you are familiar with social media.