Design and develop scalable, modular, and maintainable PLC software architecture for automation and semiconductor manufacturing equipment.
Define and standardize PLC software architecture, including:I/O structure and naming conventionsState machine and sequence control logicInterlock, safety, and fail-safe strategiesAlarm handling philosophyReusable software modules and coding standards
Review and continuously improve PLC software design standards across projects to ensure consistency, reliability, and maintainability.
Software Development & System Integration
Develop advanced PLC software using IEC 61131-3 programming languages, including Ladder Diagram (LD), Structured Text (ST), and Function Block Diagram (FBD).
Design and integrate PLC systems with:HMISCADAMESERPIndustrial communication protocols such as EtherCAT, Modbus TCP/IP, SECS/GEM, OPC UA, and REST APIs where applicable.
Support system commissioning, troubleshooting, performance optimization, FAT, SAT, and customer buy-off.
Technical Leadership
Lead and mentor Software Engineers on PLC software design, architecture, troubleshooting, and best engineering practices.
Review software quality, coding standards, and project deliverables.
Drive technical decisions, software standardization, and continuous improvement initiatives.
Support project planning, technical risk assessment, resource planning, and customer technical discussions.
Job Requirements
Bachelor's Degree or Diploma in Electrical Engineering, Mechatronics, Automation Engineering, Computer Engineering, or a related discipline.
Minimum 8-10 years of hands-on PLC automation experience, preferably in semiconductor equipment or machine automation.
Proven experience in:PLC software architecture and system designComplete project lifecycle (design, development, commissioning, FAT, SAT, and customer buy-off)Troubleshooting complex automation systemsSystem integration with HMI, SCADA, MES, ERP, and industrial communication networks
Strong hands-on experience with one or more major PLC platforms, such as Omron, Siemens, Rockwell, Mitsubishi, Beckhoff, or Keyence.
Strong knowledge of industrial communication protocols, including EtherCAT, Modbus TCP/IP, SECS/GEM, OPC UA, and related automation technologies.
Experience leading technical teams, mentoring engineers, and establishing PLC software standards.
Strong analytical, problem-solving, communication, and project coordination skills.
