KEYWORDS: PLC programming, Siemens S7, Allen-Bradley, controls engineer, electrical engineer, industrial controls, HVAC controls, sequence of operation, electrical schematics, panel design, wiring diagrams, factory acceptance testing, site acceptance testing, commissioning, motor control, VFD, relay logic, ladder logic, NEC, hazardous location, ATEX, bill of materials, industrial automation, HVAC manufacturing, troubleshooting. An established, growing manufacturer of custom-built industrial HVAC equipment in the Houston area is hiring a Controls Engineer to own PLC-based control system design, programming, and startup for equipment built to unique customer specifications — not off-the-shelf systems.