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PLC/SCADA Software Engineer
Unified Microsystems
Dubai, UAE
Full-time
Mid · 3+ years experience
Onsite
Discovered 2 weeks ago
Siemens TIA Portal V21STEP 7 ProfessionalSiemens S7-1200WinCC ProfessionalWinCC UnifiedLadder Logic (LAD)
Free
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Siemens TIA Portal V21STEP 7 ProfessionalSiemens S7-1200
Role Overview
Develop PLC application software using Siemens TIA Portal V21.
Develop and maintain Siemens S7-1200 and S7-1500 PLC programs.
Develop, configure and modify WinCC HMI/SCADA applications.
Review Functional Design Specifications (FDS), Sequence of Operations (SOO), Cause & Effect matrices and I/O schedules before development.
Develop modular, reusable and well-documented PLC software.
Perform offline software testing using PLCSIM where applicable.
Support Factory Acceptance Testing (FAT) remotely.
Provide remote software support during commissioning and troubleshooting.
Maintain software version control, backups and revision history.
Prepare software documentation, testing records and change logs.
Collaborate with project managers, controls engineers and commissioning teams.
Ability to read and interpret electrical schematics, control panel drawings, wiring diagrams, P&IDs and I/O schedules.
Sound understanding of industrial electrical control systems, including AC/DC circuits, relays, contactors, motor starters (DOL/reversing), analogue/digital I/O, protection devices, residual current protection (RCD/RCCB), and fail-safe control principles.
Working knowledge of electrical fault-finding, circuit theory, and industrial troubleshooting techniques to support PLC software development, testing and commissioning.
Key Skills for This Role
Siemens TIA Portal V21STEP 7 ProfessionalSiemens S7-1200WinCC ProfessionalWinCC UnifiedLadder Logic (LAD)
Full Job Posting
Work Overview
Develop PLC application software using Siemens TIA Portal V21.
Develop and maintain Siemens S7-1200 and S7-1500 PLC programs.
Develop, configure and modify WinCC HMI/SCADA applications.
Review Functional Design Specifications (FDS), Sequence of Operations (SOO), Cause & Effect matrices and I/O schedules before development.
Develop modular, reusable and well-documented PLC software.
Perform offline software testing using PLCSIM where applicable.
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