All Services Administrative & Secretarial Executive Assistant $18/hr · Starting at $25 Administrative/Executive Assistant. Proficient in Ariba, Concur, Microsoft Office, PPM project management system. About $18/hr · Ongoing Download Resume Administrative/Executive Assistant. Proficient in Ariba, Concur, Microsoft Office, PPM project management system. Skills & Expertise Administrative AssistantAribaExecutive AssistantMicrosoft OfficeOffice AssistantProject Management 0 Reviews This Freelancer has not received any feedback. Browse Similar Freelance Experts Executive AssistantsOffice AssistantsProject ManagersMicrosoft Office Experts