PLC Engineer – Semiconductor Chemical Systems

Marketech International Corporation USA

Phoenix (AZ)

On-site

USD 90,000 - 140,000

Full time

14 days+

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Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

Paid time off

401(k)

Job summary

Marketech International Corporation USA is seeking a skilled PLC Engineer – Semiconductor Chemical Systems to design, program, integrate, test, commission, and maintain automated control systems used within semiconductor chemical delivery and distribution systems.

This role involves working with PLCs, HMIs, SCADA systems, instrumentation, valves, pumps, and related process-control components, collaborating with controls and electrical engineers, project managers, technicians, and field teams

Qualifications

Bachelor's degree or equivalent in Electrical/Automation/Controls Engineering or related field.
Experience programming and troubleshooting industrial PLC systems.
Experience with HMI/SCADA applications.
Understanding of industrial control systems, electrical controls, instrumentation, and automation.
Ability to read electrical schematics, wiring diagrams, P&IDs, and control drawings.
Experience troubleshooting digital and analog signals, sensors, actuators, valves, motors, and related field devices.
Understanding of PLC I/O architecture, control logic, alarms, interlocks, and sequencing.
Strong analytical, troubleshooting, and problem-solving skills.
Strong documentation and technical communication skills.
Ability to coordinate with engineering, construction, maintenance, vendors, and field personnel.

Responsibilities

Develop, modify, test, and troubleshoot PLC programs for semiconductor chemical delivery and distribution systems.
Support PLC-based automation for chemical cabinets, valve manifolds, pumps, valves, actuators, sensors, and related equipment.
Develop and modify HMI screens, alarms, interlocks, status displays, trends, and operator controls.
Support integration between PLCs, HMIs, SCADA systems, and facility monitoring systems.
Perform PLC and control-system commissioning, startup, functional testing, and troubleshooting.
Review control philosophies, sequences of operation, cause-and-effect matrices, alarm requirements, and interlock logic.
Configure and troubleshoot digital and analog I/O, instrumentation, networks, and control devices.
Support FAT, SAT, system qualification, and turnover activities.
Troubleshoot PLC logic, communication failures, instrumentation issues, equipment faults, alarms, and control-system performance concerns.
Coordinate with field technicians during installation, wiring verification, startup, and commissioning.