Controls Technician III (Engineering)

NOV; San Antonio (TX); On-site; USD 70,000 - 95,000; Full time

Job summary

NOV in San Antonio, TX seeks an experienced Controls Technician to troubleshoot and repair PLC systems, configure HMIs/SCADA, and support instrumentation and motion control in an industrial setting.

The role requires 5–8 years of automation experience, reading electrical drawings, and strong teamwork. Occasional overtime and on-call duties may apply, with potential travel as needed.

Qualifications

• Associate degree or equivalent experience in electrical/automation
• 5–8 years of industrial controls/automation experience
• Strong knowledge of electrical systems up to 480 VAC
• Experience troubleshooting PLCs, HMIs, VFDs, and industrial automation equipment
• Ability to read electrical drawings and technical docs
• Experience with electrical test equipment (multimeters, scopes)
• Strong troubleshooting and teamwork skills
• Excellent communication and collaboration abilities

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 VFDs.
• Diagnose electrical, mechanical, hydraulic, pneumatic, and controls-related failures.
• Interpret electrical schematics, P&IDs, wiring diagrams, and control drawings.
• Perform preventive 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 LOTO.
• Maintain accurate maintenance records using a CMMS.
• Participate in on-call support and respond to emergency equipment failures as required.

Skills

PLC Programming

HMI Development

SCADA Systems

Industrial Networking

Servo & Motion Control

VFD Configuration

Robotics Integration

Instrumentation Calibration

Electrical Troubleshooting

CMMS

Root Cause Analysis

Education

Associate degree in Electrical Engineering Technology

Mechatronics or Industrial Automation background

Tools

Allen-Bradley ControlLogix

Allen-Bradley CompactLogix

FactoryTalk View

Siemens TIA Portal

Omron automation tools

Job description

Job Description

TBD

PRIMARY DUTIES & 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.

Job 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.
• Up to 25% Travel with occasional international travel.

REQUIRED QUALIFICATIONS

• 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.

Preferred Qualifications

• 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.

Technical Skills

• PLC Programming and Troubleshooting
• HMI Development and Support
• SCADA Systems
• Industrial Networking
• Servo and Motion Control
• VFD Configuration
• Robotics Integration
• Instrumentation and Calibration
• Electrical Troubleshooting
• Control Panel Design and Wiring
• Preventive and Predictive Maintenance
• Root Cause Analysis (RCA)
• CMMS Software
• Microsoft Office Suite