Controls Technician III (Engineering)

NOV•San Antonio, TX
•Onsite

About The Position

The Controls Technician III will be responsible for troubleshooting and repairing PLC-controlled manufacturing equipment. This role involves programming, modifying, and maintaining PLC logic, configuring and troubleshooting HMIs and SCADA systems, and installing, calibrating, and maintaining industrial instrumentation. The technician will also troubleshoot servo systems, motion control, robotics, and VFDs, diagnose electrical, mechanical, hydraulic, pneumatic, and controls-related failures, and interpret various technical drawings. Responsibilities include performing preventative and predictive maintenance, supporting equipment startups and commissioning, configuring industrial communication networks, performing system backups, and assisting engineers with installations and upgrades. The role also involves recommending and implementing continuous improvement projects, mentoring junior technicians, coordinating with various departments and vendors, ensuring compliance with safety regulations, maintaining maintenance records, and participating in on-call support.

Requirements

  • Ability to lift up to 50 pounds.
  • Ability to climb ladders and work from elevated platforms.
  • Ability to work in confined spaces when necessary.
  • Ability to stand, walk, bend, kneel, and reach for extended periods.
  • Ability to distinguish wire colors and read detailed electrical drawings.
  • Must be able to work in industrial environments with varying temperatures, noise levels, and moving machinery.
  • Exposure to electrical equipment, rotating machinery, compressed air systems, and production processes.
  • May require overtime, weekend work, and on-call responsibilities.
  • Appropriate PPE is required.
  • Associate degree in Electrical Engineering Technology, Industrial Automation, Mechatronics, or related field; equivalent experience may be considered.
  • 5–8 years of industrial controls or automation experience.
  • Strong knowledge of industrial electrical systems up to 480 VAC.
  • Experience troubleshooting PLCs, HMIs, VFDs, and industrial automation equipment.
  • Ability to read and interpret electrical drawings and technical documentation.
  • Experience using electrical test equipment including multimeters, oscilloscopes, and process calibrators.
  • Strong troubleshooting and analytical skills.
  • Excellent communication and teamwork abilities.

Nice To Haves

  • Experience with Allen-Bradley ControlLogix, CompactLogix, FactoryTalk View, Siemens TIA Portal, or similar platforms.
  • Exposure to CNC motion control (Omron-Delta Tau, Siemens).
  • Knowledge of robotics (FANUC, ABB, KUKA, Yaskawa, or Universal Robots).
  • Experience with industrial networking and cybersecurity best practices.
  • Experience supporting SCADA and MES systems.
  • OSHA safety training or NFPA 70E certification.
  • ISA Certified Control Systems Technician (CCST) certification.

Responsibilities

  • Troubleshoot and repair PLC-controlled manufacturing equipment.
  • Program, modify, and maintain PLC logic using platforms such as Allen-Bradley, Siemens, Schneider, or Omron.
  • Configure and troubleshoot HMIs and SCADA systems.
  • Install, calibrate, and maintain industrial instrumentation including pressure, temperature, flow, and level devices.
  • Troubleshoot servo systems, motion control, robotics, and variable frequency drives (VFDs).
  • Diagnose electrical, mechanical, hydraulic, pneumatic, and controls-related failures.
  • Interpret electrical schematics, P&IDs, wiring diagrams, and control drawings.
  • Perform preventative and predictive maintenance on automation systems.
  • Support equipment startups, commissioning, and production changeovers.
  • Configure industrial communication networks including Ethernet/IP, Modbus, Profibus, Profinet, DeviceNet, and other fieldbus systems.
  • Perform system backups, software version control, and documentation updates.
  • Assist engineers with new equipment installations and automation upgrades.
  • Recommend and implement continuous improvement projects that increase equipment reliability and productivity.
  • Mentor Controls Technicians I and II on troubleshooting techniques and best practices.
  • Coordinate with maintenance, engineering, operations, and outside vendors to resolve equipment issues.
  • Ensure compliance with electrical codes, company standards, and safety regulations including Lockout/Tagout (LOTO).
  • Maintain accurate maintenance records using a CMMS.
  • Participate in on-call support and respond to emergency equipment failures as required.
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