Full Stack Developer

Required Skills:

5 years of hands-on Siemens S7 experience specifically S7-300 programming diagnostics and data block structure via Step 7 Classic or TIA Portal Profibus DP fluency able to diagnose bus faults read GSD device profiles identify slave addresses and recover from MP Bus Blackout-class faults without vendor support WinCC Flexible proficiency able to navigate and extract tag configuration alarm classes and screen logic from an existing compiled WinCC Flexible project OPC UA implementation experience via any of: Siemens Industrial PC OPC Server KEPServerEX open62541 or a Snap7-based Linux gateway solution Industrial networking OT/IT convergence unmanaged Profibus topology vs. managed Ethernet VLAN design and understanding of where IT security policy collides with OT real-time requirements Ability to independently read and produce electrical schematics PLC I/O mapping sheets drive parameter tables and field device wiring diagrams Comfortable working on an active high-visibility public-facing site in Qatar able to obtain Qatar SafePass site-specific HSE inductions and work under the relevant site access protocols Fluent English can write clear technical documentation and communicate directly with European OEM contractors a remote software development team and the clients facilities management team