All Services Engineering & Architecture Ingeniero Electricista Electronico $9/hr · Starting at $25 Automation of asphalt and concrete plants, continuous scales, dosers, variable speed drives, especially with Siemens HMI & PLC. About $9/hr · Ongoing Download Resume Automation of asphalt and concrete plants, continuous scales, dosers, variable speed drives, especially with Siemens HMI & PLC. Skills & Expertise ArduinoElectrical Controls DesignEPLANPLCPlc Programming 0 Reviews This Freelancer has not received any feedback. Browse Similar Freelance Experts Arduino ProgrammersPLC ProgrammersEPLAN Electrical Designers