Ameren Missouri anchors St Louis linework across dense urban distribution, Mississippi River storm exposure, and metro transmission maintenance. Active utility and crew employers include Ameren, ITG Communications, CDG Engineers, and Sunrise Telecom. Average lineman salary in St Louis: $85,036 per year. Nearby hiring hubs: Florissant , St Charles , Belleville , O'Fallon , Alton . Ameren lists lineworker apprenticeship progression tied to climbing school, utility, tower, tree, military, and related field experience. View open lineman jobs in St Louis below.