PLC Programming Engineer (Siemens SICAM PAS & SICAM A8000 RTU Specialist)

Orbit International Survey Services LLC; Sharjah; On-site; AED 120,000 - 200,000; Full time

Job summary

A leading engineering firm located in Sharjah is seeking a skilled PLC Programming Engineer to manage programming, configuration, testing, and commissioning of automation systems for high-voltage substations. Ideal candidates will have 3-6 years of hands-on Siemens PLC experience and practical knowledge of industrial protocols. This role contributes to complex projects within the oil, gas, and renewable energy sectors.

Qualifications

• 3-6 years of experience in PLC programming and field commissioning.
• Hands-on Siemens PLC experience required.
• Practical experience with Modbus, Profinet, IEC61850, and IEC104.

Responsibilities

• Develop and troubleshoot Siemens PLC programs using TIA Portal.
• Lead on-site commissioning and executing tests.
• Provide technical support during commissioning.

Skills

Siemens PLC programming

Protocol integration

Field commissioning

Network communication

Troubleshooting

Education

Bachelor's or Diploma in Electrical, Electronics, Instrumentation, or Automation Engineering

Tools

TIA Portal (S7-1200/S7-1500)

WinCC

Wireshark

Job description

Orbit International Survey Services (Orbit ISS) is an industrial asset integrity engineering management firm based in United Arab Emirates since 2006. We are an ISO 9001:2015 ISO 14001:2015 & ISO 45001:2018 accredited company and have provided asset integrity solutions to high-profile clients throughout the Middle East North America and Asia. Founded on the principles of safety quality and environmental stewardship Orbit ISS is committed to providing world-class services and technology that help our clients address complex challenges in the oil gas marine and renewable energy sectors.
Visit our website at to learn more.

Role Overview:
Orbit International Survey Services LLC is looking for a skilled PLC Programming Engineer with proven expertise in Siemens SICAM PAS SICAM A8000 RTUs (CP8022/CP8050) and WinCC SCMS systems. The role involves programming configuration testing and commissioning of automation and control systems for high-voltage substations (765kV/400kV/220kV) with a strong focus on protocol integration network communication and IED configuration.
Key Responsibilities:
PLC Programming & Integration:

• Develop and troubleshoot Siemens PLC programs using TIA Portal (S7-1200 S7-1500).
  
• Configure and integrate communication with field devices using:
  
• Modbus (RTU/RS485 TCP/IP)
  
• Profinet
  
• IEC 61850 (GOOSE Messaging MMS)
  
• IEC(IEC104) for SCADA systems
  
• Configure IEDs RTUs and gateway devices for interoperability.
  

Testing & Validation:

• Perform Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT).
  
• Simulate PLC control logic and communication signals using test benches or simulators.
  
• Validate communication between PLCs HMIs protection relays and SCADA systems.
  

Commissioning Activities:

• Lead and execute on-site commissioning including:
  
• I/O and signal testing
  
• Protocol testing (IEC61850/IEC104)
  
• Drive/VFD configuration (e.g. Siemens G120)
  
• Substation or plant automation system startup
  
• Ensure proper configuration of data points for SCADA/EMS/DMS integration.
  

Troubleshooting & Support:

• Diagnose and resolve hardware/software issues in the field related to PLCs or protocol communication.
  
• Modify PLC or SCADA configurations during commissioning to meet changing requirements.
  
• Provide remote or on-site technical support during commissioning and post-handover.
  

Documentation & Reporting:

• Prepare technical documents: communication matrices IED configuration files test reports and commissioning checklists.
  
• Maintain project-specific backups and version control for PLC SCADA and communication configuration files.
  
• Support customer training and handover documentation.
  

Requirements

• Bachelor s or Diploma in Electrical Electronics Instrumentation or Automation Engineering.
  
• 3 6 years in PLC programming and field commissioning with hands-on Siemens PLC experience.
  
• Practical experience with industrial protocols: Modbus (RTU/TCP) Profinet IEC61850 and IEC104.
  
• Siemens TIA Portal S7-1200/1500 and HMI (WinCC WinCC Unified).
  
• Configuration tools for IEDs and communication gateways (e.g. Siemens SICAM Schneider ABB PCM SEL).
  
• Familiar with network diagnostics tools (Wireshark IEC61850 test tools).
  
• Reading and interpreting electrical drawings signal lists and SCADA point lists.
  
• Can join immediately upon selection.