Senior PLC Engineer

Integrix Solutions Pte Ltd; Singapore; On-site; SGD 90,000 - 150,000; Part time

Job summary

Integrix Solutions Pte Ltd is seeking a Senior PLC Engineer for a 1-year contract at our client location in Singapore. The role focuses on delivering safe, compliant, and reliable automation and control system solutions with hands-on PLC engineering, lifecycle management, and end-to-end project execution.

You will design, program, and support Siemens PLC systems, develop HMI/SCADA solutions, and lead FAT/SAT, commissioning, and site acceptance testing while ensuring schedule, cost, quality,

Qualifications

• Bachelor's degree in electrical, electronics, instrumentation, mechatronics, or related engineering discipline.
• 7–10 years' experience in industrial automation and control systems.
• Minimum 2–3 years in a lead engineer or project engineer role.
• Strong hands-on experience with Siemens PLC platforms.
• Experience in Pharmaceutical Manufacturing is preferred.

Responsibilities

• Design, program, support, and troubleshoot Siemens PLC systems (S7-300/400, S7-1200/1500) using TIA Portal / STEP 7.
• Develop, maintain, and upgrade HMI/SCADA systems using WinCC / WinCC Flexible / WinCC Unified.
• Provide engineering support for PLC and HMI systems during operations, incidents, and planned maintenance.
• Lead FAT, SAT, commissioning and site acceptance testing; support lifecycle management and obsolescence programs.
• Manage automation projects from conception through commissioning and handover; track schedules and risks.
• Coordinate with automation vendors and system integrators during upgrades and lifecycle activities.

Skills

Siemens PLC systems

HMI/SCADA (WinCC/WinCC Unified)

Project management

Industrial networks

Education

Bachelors in Electrical/Electronics/Instrumentation/Mechatronics

Tools

TIA Portal

STEP 7

WinCC

DeltaV DCS

OSI PI

Job description

Position : Senior PLC Engineer
Contract role for 1 year at our client location.

Role Purpose

The Senior PLC Engineer is responsible for deliveringsafe, compliant, and reliable automation and control system solutionsfor Phama client manufacturing operations. The role combineshands‑on PLC engineering,PLC/HMI lifecycle management, andend‑to‑end project execution, ensuring automation systems and upgrades meetschedule, cost, quality, safety, and compliance requirementsacross their lifecycle.

Key Responsibilities

Automation, Support & Lifecycle Management

• Design, program, support, and troubleshootSiemens PLC systems(S7‑300/400, S7‑1200/1500) usingTIA Portal / STEP 7
• Develop, maintain, and upgradeHMI/SCADA systemsusingWinCC / WinCC Flexible / WinCC Unified
• Provideengineering supportfor PLC and HMI systems during operations, incidents, and planned maintenance
• SupportPLC and HMI lifecycle management activities, including Obsolescence management, Version upgrades and migrations, Hardware and software refreshes and Backup, recovery, and system integrity checks
• Design and support industrial networks (PROFIBUS, PROFINET, Ethernet/IP, Modbus)
• Integrate PLC systems with instrumentation, VFDs, MCCs and packaged equipment.
• Interface PLC systems withDeltaV DCSvia Profibus, VIM Serial & EIOC andOSI PI (OPC‑UA)where required.
• Lead and supportFAT, SAT, commissioning, and site acceptance testing
• Troubleshoot control system issues to minimize downtime and production impact

Project Management & Vendor Coordination

• Manage automation projects fromconcept through commissioning and handover
• Plan and executePLC/HMI upgrade projects, including scope definition, scheduling, and risk management
• Coordinate and manageautomation vendors and system integratorsduring upgrade and lifecycle activities
• Review vendor proposals, technical solutions, and deliverables
• Track project schedules
• Manage risks, issues, scope changes, and technical clarifications
• Act as theprimary technical point of contactfor stakeholders and vendors
• Lead project meetings, technical reviews, and upgrade planning discussions

Quality, Compliance & Documentation

• Prepare and maintain automation documentation (control philosophy, I/O lists, lifecycle records, as‑built drawings).
• Ensure compliance withGxP, safety, data integrity, and cybersecurity expectations
• Adhere to applicableIEC, ISA, and site safety standards
• Support on activities including validation, audits, and inspection readiness during system upgrades and changes

Required Qualifications

• Bachelor's degree in electrical, Electronics, Instrumentation, Mechatronics, or related Engineering discipline
• 7–10 years' experience in industrial automation and control systems
• Minimum2–3 yearsin alead engineer or project engineerrole
• Strong hands‑on experience withSiemens PLC platforms
• Experience inPharmaceutical Manufacturing preferred

Value Added

• Project Management certification (PMP or equivalent)
• Experience withPLC/HMI upgrade programs or site lifecycle roadmaps
• Industrial cybersecurity knowledge (e.g., IEC 62443)

Engagement Expectations

• Works with minimum supervision and clear accountability
• Supports site upgrades, cutovers, and commissioning activities as required
• Comply with allsafety, quality, and compliance requirements