Primary Responsibilities Include: Perform daily invoicing functions. Generate sales invoices for third party and intercompany customers. First point of contact for Collections. Ensure sales invoices are sent to customers in timely manner and in requested format. Resolve billing errors. Assist wider organisation in reducing DSO. Assist Operations/Finance with any ad-hoc duties. Ensure that all financial and transactions are recorded in compliance with the WIS policies and procedures. Perform various other duties and activities as assigned by Supervisor. Qualifications/Requirements: Prior invoicing experience, working knowledge of FMS preferred. High school diploma or equivalent. Skilled at maintaining positive working relationship with employees and customers. Must be proficient in Microsoft Office including Outlook, Excel & Word. QHSE Commitments: Be familiar with the WIS QHSE policies and Standard and QHSE system – WISE. Demonstrate Company leadership, in its expectations, accountabilities and proactiveness in all QHSE matters. Adhere to all QHSE requirements and local site house rules. Participate in all HSE Safety inspections as required.