The Global OT Application Engineer implements, integrates, tests, deploys and supports industrial applications across manufacturing sites. The role configures and implements global use cases and applications.

Assigned scope

- Global OT applications across manufacturing sites, including MES/MOM, SCADA, IIoT and CMMS domains.
- Purchased, configured and internally developed applications and their interfaces to plant and business systems.

Primary emphasis

- Applications are deployed safely, consistently and with clear acceptance evidence.
- Plant systems exchange accurate and reliable data through governed interfaces.
- Sites receive effective onboarding, technical support and operational handover.
- Incidents and recurring technical problems are resolved at the appropriate support level.
- Integral templates and standards are applied without losing control of necessary local adaptations.

Main tasks / Standard of performance

Implementation and Integration

- Configure and implement applications, templates and technical components in accordance with the approved solution design.
- Gather requirements to integrate applications with PLC, SCADA, DCS, MES/MOM, IIoT, historians and business systems such as ERP, LIMS or QMS.
- Configure and troubleshoot industrial data exchange using technologies such as OPC UA, MQTT, REST APIs and SQL.
- Ensure that global libraries, naming conventions, templates, interfaces and deployment standards are followed.
- Document any approved local deviation from the global template, including its justification and approval, in the application documentation.
- Review technical and functional deliveries from developers,



vendors and system integrators and challenge gaps in quality, maintainability or operability.

Testing and Validation

- Translate approved requirements and designs into a complete and traceable technical test scope.
- Prepare and execute functional, integration and regression tests and support FAT, SAT and user acceptance testing.
- Diagnose bugs, coordinate correction and test cycles, and maintain clear test evidence and release documentation.
- Verify connectivity, data integrity, performance, resilience, security controls and operational readiness.
- Confirm that acceptance criteria are met before recommending release or production deployment.

Deployment and Site Onboarding

- Lead the technical work required to take an application from a controlled release into stable plant operation.
- Assess site readiness, infrastructure, signals, interfaces, data availability and local dependencies.
- Coordinate technical activities with plant stakeholders, local OT teams, vendors and system integrators.
- Execute or supervise installation, configuration, commissioning and cut-over activities.
- Provide hypercare, technical training, documentation and a clear handover to support and site teams.

Operations and Support





- Provide ITIL-based L2/L3 application support: advanced troubleshooting, functional bug-fixing and technical incident escalation across sites (ITIL support levels, not Purdue Model network layers).
- Perform problem management: conduct root-cause analysis (RCA) and implement corrective and preventive actions (CAPA) for recurring application errors.
- Manage technical change requests: oversee software modifications from assessment through testing, release and production deployment.
- Monitor application health: track application performance, data interfaces (APIs) and support trends to recommend continuous improvements.
- Maintain knowledge databases: manage technical documentation, application runbooks, release notes and Known-Error Databases (KEDB).

Plant and Technical Team Interface

- Act as the practical interface between plant operations and the teams that design, build and supply the applications.
- Translate plant constraints and operational issues into actionable technical requirements and bugs.
- Explain technical options, dependencies, risks and decisions to plant and business stakeholders.
- Coordinate effectively with the Application Owner on priorities, scope, standards and acceptance.
- Work with developers on build activities and with delivery leads or Scrum Masters on planning and execution.
- Challenge vendors and system integrators on technical quality, delivery evidence and issue resolution, escalating commercial or roadmap matters to the Application Owner.

Skills And Competencies

Functional & Technical Competencies

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📌 Global OT Application Engineer (España)
🏢 QUARIQ
📍 España