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Job Description
The Talent Engine of Middle East is HIRING!
👉Senior Industrial Automation Engineer
Siemens S7 / SCADA / OPC UA · Qatar
Responsibilities:
* Conduct an on-site technical audit of the existing Siemens S7-300 control system — document PLC tag database, DB block structure, Profibus DP device map, drive parameter registers, and alarm/event table
* Design and implement an OPC UA gateway/bridge exposing live PLC data to the web backend including axis positions, torques, RPMs, limit switch states, and alarm states
* Define the full read/write tag contract between the PLC and the HAL covering all 7 operating modes and per-axis position setpoints
* Specify and implement industrial network architecture — OT/IT segmentation, gateway placement, PLC-to-backend connectivity, and RTSP camera VLAN integration
* Define fail-safe and degraded-mode behaviour ensuring PLC-side safety logic remains sovereign over all web-initiated commands
* Produce full technical documentation: wiring diagrams, network topology, tag mapping sheets, API contracts, and client handover package
Requirements:
* 5+ years hands-on Siemens S7 experience — S7-300 programming, diagnostics, and data block structure via Step 7 Classic or TIA Portal
* Profibus DP fluency — bus fault diagnosis, GSD device profiles, slave address identification
* OPC UA implementation experience via KEPServerEX, open62541, Snap7-based Linux gateway, or Siemens Industrial PC OPC Server
* WinCC Flexible proficiency — tag configuration, alarm classes, and screen logic
* Industrial networking knowledge — OT/IT convergence, VLAN design, and OT security requirements
* Fluent English — able to produce clear technical documentation and liaise with European OEM contractors and remote dev teams
* Able to obtain Qatar SafePass and work under site HSE protocols
* Available to join immediately