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 customers‘

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.

Broad range of activities, tasks, and projects

Adaptable 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

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