Software Engineering Manager (PLC & Automation)

fa systems automation (s) pte ltd; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

fa systems automation (s) pte ltd is seeking an accomplished System Architect for PLC software in automation and semiconductor equipment. You will define and standardize scalable PLC architectures, lead architecture reviews, and mentor engineers on best practices.

Requirements include 8–10 years hands-on PLC automation experience, proficiency with major PLC platforms (Omron, Siemens, Rockwell, Mitsubishi, Beckhoff, Keyence), and strong knowledge of EtherCAT, Modbus TCP/IP, SECS/GEM, and OPC UA.

Qualifications

• 8–10 years hands-on PLC automation experience.
• Bachelor's or Diploma in Electrical/Electronics/Automation.
• Experience with major PLC platforms: Omron, Siemens, Rockwell, Mitsubishi, Beckhoff, Keyence.
• Strong knowledge of industrial protocols: EtherCAT, Modbus TCP/IP, SECS/GEM, OPC UA.
• Proven leadership in guiding software teams and design reviews.

Responsibilities

• Design and develop PLC software architectures for automation and semiconductor equipment.
• Define I/O structures, state machines, interlocks, safety, and fail-safe strategies.
• Lead and mentor software engineers on PLC design and best practices.
• Review software quality, coding standards, and project deliverables.
• Support project planning, risk assessment, and customer technical discussions.

Skills

PLC software architecture

System design

Team leadership

Troubleshooting automation

Industrial protocols

Education

Bachelor's or Diploma in Electrical/Automation/Mechatronics/Computer Engineering

Tools

Omron PLC

Siemens PLC

Rockwell PLC

Mitsubishi PLC

Beckhoff PLC

Keyence PLC

Job description

Job Description

System Architecture & Design

• 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.