Secretary and administrator which will include the following tasks.

Answering calls, taking messages and handling correspondence.
Maintaining diaries and arranging appointments.
Typing, preparing and collating reports
Filing
Organising and servicing meetings (producing agendas and taking minutes)
Managing databases
Prioritising workloads
Implementing new procedures and administrative systems.
Liaising with relevant organisations and clients.
Coordinating mail-shots and similar publicity tasks.
Logging or processing bills or expenses
Acting as a receptionist and/or meeting and greeting clients.
If more senior, recruiting, training and supervising junior staff.