OT Automation Engineer (Onsite, Zaragoza, English)

D-ploy is a leading IT and Engineering Solutions company with operations worldwide. Our mission is to deliver innovative and D-ploy is an IT and Engineering Solutions company with operations throughout the EMEA region including Switzerland, Germany, Czech Republic, Austria, UK, as well as the USA.

We pride ourselves on delivering innovative and superior services and solutions to numerous industry‑leading clients. By building relationships and trusted partnerships within the IT community, we optimize our customer‘s IT productivity and contribute to the organization’s success and value.

We are interested in talking to engaging, flexible, and solution‑oriented individuals who are looking to become a part of a dynamically growing and international organization. We are focused on creating value where IT counts, join us!

Role overview

Provide onsite support for OT and automation systems, including PLC, SCADA, HMI, communication modules, and related industrial control systems. The role focuses on troubleshooting, incident resolution, system recovery, patching, backups, and compliant change execution in line with site QMS and GAMP 5 requirements.

Responsibilities

• 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
• Resolve software, firmware, configuration, and communication issues
• 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

Requirements

• 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.

Benefits

• Broad range of activities, tasks, and projects
• Flexible working conditions
• Vouchers (B‑day voucher, wedding, and new born surprise)
• Fishing for Friends program – our referral program
• Refreshments in the D‑ploy office
• Further development and professional advancement
• Friendly and international working environment
• Company‑sponsored events

Is IT in your DNA?