Night-Shift OT Technician: PLC/SCADA Systems

Lonza Group Ltd.; Houston (TX); On-site; USD 70,000 - 95,000; Full time

Job summary

Lonza Group Ltd. in Houston, TX is seeking an Operational Technology Technician for night shift to maintain and repair industrial control systems, including PLCs, SCADA, HMIs and instrumentation.

You will diagnose incidents, perform system upgrades under engineering guidance, document activities, collaborate with engineering, production and IT, and participate in on-call rotation while ensuring safety and quality standards.

Qualifications

• Experience with industrial control systems preferred.
• Strong problem-solving and troubleshooting skills.
• Ability to read electrical schematics and diagrams.
• Willingness to work night shifts and weekends if needed.

Responsibilities

• Perform preventative maintenance, troubleshooting, and repair of PLC/SCADA/HMI systems and related instrumentation.
• Respond to OT incidents and alarms during night shift to minimize downtime.
• Implement modifications and upgrades to control systems under engineering guidance.
• Document maintenance activities, repairs, and system changes accurately.
• Collaborate with engineering, production, and IT to resolve recurring issues.
• Assist in calibration and verification of critical process instrumentation.
• Ensure safety, quality standards, and compliance with policies.
• Participate in on-call rotation as required.

Skills

SAP

Microsoft Excel

Inventory Tracking System(s)

Tools

PLC

SCADA systems

HMIs

Job description

Lonza Group Ltd. in Houston, TX is seeking an Operational Technology Technician for night shift to maintain and repair industrial control systems, including PLCs, SCADA, HMIs and instrumentation.

You will diagnose incidents, perform system upgrades under engineering guidance, document activities, collaborate with engineering, production and IT, and participate in on-call rotation while ensuring safety and quality standards.