Overview In this role you will provide on-site support for OT and automation systems, focusing on troubleshooting, incident resolution, and compliant change execution. You will work across Siemens environments and other automation platforms to ensure stable operations in critical production settings. You'll collaborate with cross-functional teams to maintain validated baselines, perform backups and recovery, and contribute to QMS/GAMP 5 compliant processes.

This is an international, fast-growing organization where your hands-on expertise will impact plant uptime and system integrity.

Compensaciones / Beneficios Versátil working conditions

Vouchers (B-day voucher, wedding, and new born surprise)

Fishing for Friends program – referral program

Refreshments in the D-ploy office

Further development and professional advancement

Friendly and international working environment

Responsabilidades

Support OT systems, incidents, service requests, and change management activities

Troubleshoot PLC, SCADA, OPC/PI, and industrial communication issues

Work with Siemens environments: TIA Portal, WinCC, Step 7, Step 5

Support Siemens PLC systems and automation infrastructure

Support Beckhoff automation systems (optional)

Support DeltaV systems and automation components (optional)

Analyze PLC CPU and communication diagnostics

Perform firmware, memory, and module health checks

Support OT patching, firmware upgrades, and software updates

Restore system communication and perform recovery actions

Support PLC programming modifications and control logic adjustments

Configure and maintain HMI/SCADA applications





Participate in commissioning, FAT, SAT, and validation activities

Support automation projects, upgrades, and system integrations

Trace I/O and field signals using E&I; drawings and technical documentation

Perform OT backups, restore procedures, and disaster recovery support

Maintain validated system baselines and technical documentation

Execute and document changes according to QMS/GAMP 5 procedures

Coordinate with Engineering, Automation, IT, Production, Quality, OEMs, and vendors

Support OT cybersecurity, access control, and system hardening activities

Requisitos principales Experience with OT, industrial automation, or control systems environments

Strong knowledge of PLC and SCADA systems

Hands-on experience with Siemens TIA Portal, WinCC, and Step 7

Experience with Step 5, Beckhoff, or DeltaV is an advantage

Knowledge of industrial communication protocols such as OPC, PI, Ethernet/IP, Profinet, and Profibus

Understanding of PLC CPUs, I/O modules, firmware, and diagnostics

Experience with OT patching, backups, restore procedures, and change control

Ability to read E&I; drawings, loop diagrams, I/O lists, and network diagrams

Experience in GMP/GxP or validated environments

Understanding of GAMP 5 and QMS processes

Familiarity with OT cybersecurity concepts

Strong troubleshooting and documentation skills

Ability to support production-critical systems onsite

Valid criminal record extract (not older than 3 months) required

Troubleshooting mindset

Strong communication and coordination

Attention to detail

Siemens TIA Portal

WinCC

Step 7

📌 OT Automation Engineer (Onsite, Zaragoza, English)
🏢 D-Ploy
📍 Zaragoza