Subcontractor payables work of project accountants, by verifying that Company and customer requirements are conveyed to subcontractors, assisting project accountants to obtain approved invoices and change orders from project managers as required, monitoring timely and accurate processing of subcontractor invoices, enforcing trailing subcontract and lower tier waiver requirements, reviewing subcontractor checks for proper payment based on backup support, previous payment information and Company receipt of payment from customer, monitor via transaction reports that all reimbursable costs are billed. T&M work of project accountants, by verifying that Company and customer requirements are aligned, assisting project accountants to obtain timesheets and other expenses from project managers, monitoring timely and accurate processing of maintenance invoices, previous payment information and Company receipt of payment from customer, monitor via transaction reports that all reimbursable costs are billed.