About us. We have a career opportunity for a hands-on, full time Office Administrator to join Badger State, Inc. We are a commercial/industrial/residential plumbing & HVAC contractor. The responsibilities include. Answer/direct incoming phone calls, order office supplies, schedule work orders. AP coding and AP entry (Assessing use tax as required). Assist with accounts receivable-Work with Accounting software (ComputerEase). Weekly billing of ser...