OT Data Integration Engineer — Renewables & Security

Greenvolt Group; Madrid; On-site; EUR 70,000 - 110,000; Full time

Job summary

Greenvolt Group is seeking an OT Integration & Data Engineer to connect renewable assets, SCADA environments and industrial data platforms with the enterprise and asset management solutions. The role bridges OT, IT, Asset Management and partners, owning data integration, security, and documentation across regions.

You will design secure OT architectures, manage interfaces, ensure data quality, onboard assets and coordinate with EPCs, OEMs and digital platform vendors to enable accurate reporting

Qualifications

• Bachelor's degree in industrial engineering, telecommunications, computer science or related field.
• 5+ years in OT data/integration, automation or similar role.
• Strong knowledge of OPC UA, Modbus, MQTT and SCADA data models.
• Experience in renewables/utilities/industrial environments with IEC 62443.
• Hands-on integration of SCADA/PLC/historian with enterprise platforms.
• Experience with industrial Ethernet, TCP/IP, VLANs, routing, NAT, firewalls and VPNs.
• ISA/IEC 62443 concepts: zones, conduits, defense in depth, secure remote access.
• Experience with historians like PI System, Canary, InfluxDB.
• Good SQL knowledge; APIs, middleware, time-series data, integration patterns.
• Fluent in English.
• Strong problem-solving and troubleshooting.
• Ability to produce interface specifications and data-flow diagrams.
• Understanding OT networking, segmentation and secure remote access.
• Ability to translate cybersecurity requirements into OT controls.
• Strong communication with OT, cybersecurity, IT networks, EPCs, OEMs and O&M.

Responsibilities

• Design, implement and maintain integrations between SCADA, plant systems and enterprise solutions.
• Design secure OT communication architectures for renewable assets and networks (SCADA, OT DMZ, remote sites).
• Manage OT/IT interfaces and industrial communications (OPC UA, Modbus, MQTT, IEC 60870-5-104, IEC 61850, DNP3, SNMP).
• Administer historians and time-series platforms to ensure data collection and availability.
• Monitor data pipelines; resolve data quality and connectivity issues.
• Define data quality standards, metadata, asset hierarchies and technical documentation.
• Support onboarding of new assets and interface validation.
• Coordinate with EPCs, OEMs, O&M providers and digital vendors.
• Work with OT Tech Assurance and IT Data & Analytics to ensure data is fit for reporting.
• Support OT network segmentation, security zones, firewalls and remote access per Greenvolt standards.

Skills

Fluent in English

5+ years OT data integration

Analytical & troubleshooting

Stakeholder management

Interface specifications & data flows

Education

Bachelor's degree in industrial/telecom/computer engineering

Tools

PI System

Canary

InfluxDB

OPC UA tooling

Job description

Greenvolt Group is seeking an OT Integration & Data Engineer to connect renewable assets, SCADA environments and industrial data platforms with the enterprise and asset management solutions. The role bridges OT, IT, Asset Management and partners, owning data integration, security, and documentation across regions.

You will design secure OT architectures, manage interfaces, ensure data quality, onboard assets and coordinate with EPCs, OEMs and digital platform vendors to enable accurate reporting