OT Integration & Data Engineer

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 is lloking for a OT Integration & Data Engineer to become part of the OT & Digital team team

What you will do

As an OT Integration & Data Engineer, you will connect renewable assets, SCADA environments, and industrial data platforms with Greenvolt's enterprise and asset management solutions. You will act as the technical bridge between OT, IT, Asset Management, and technology partners, strengthening internal ownership of the OT data integration layer and supporting the seamless integration of operational data across the organization. You will own or coordinate OT communication requirements, network and data-flow documentation, secure remote-access solutions, industrial protocol governance and technical troubleshooting, while supporting cybersecurity monitoring, asset onboarding and the implementation of Greenvolt's OT security standards.

Main responsibilities

• Design, implement and maintain integrations between SCADA, plant systems, historians, monitoring platforms and enterprise solutions.
• Design, review and maintain secure OT communication architectures for renewable assets, including SCADA networks, plant LANs, OT DMZs, remote sites and the connectivity between OT and enterprise environments.
• Manage OT/IT interfaces and industrial communications using OPC UA, Modbus TCP, MQTT, IEC 60870-5-104, IEC 61850, DNP3, SNMP, TCP/IP and secure file or API-based integrations, where applicable including tag mapping, naming conventions and plant-edge data standardization.
• Administer or coordinate industrial historians and time-series platforms, ensuring appropriate data collection, availability, retention and retrieval.
• Monitor data pipelines and interfaces, identifying missing, delayed or inconsistent data and resolving protocol, connectivity and integration issues.
• Define and apply standards for data quality, metadata, asset hierarchies and technical documentation across countries and technologies.
• Support onboarding of new and acquired assets, including integration requirements, commissioning data and interface validation.
• Coordinate technical activities with EPCs, OEMs, O&M providers and digital platform vendors.
• Work with OT Technology Assurance, Operational Asset Reporting and IT Data & Analytics to ensure operational data is fit for reporting and analytics.
• Support the implementation of OT network segmentation, security zones, conduits, firewalls, routing rules and controlled interfaces in alignment with Greenvolt standards and ISA/IEC 62443 principles.
• Define and coordinate secure remote-access OT connectivity for employees, OEMs, EPCs and O&M providers, including access approval workflows, jump-host or bastion solutions, privileged access, session monitoring and removal of obsolete access paths.
• Provide technical assurance throughout the asset communications lifecycle, reviewing communication and cybersecurity deliverables during design, FAT, SAT, commissioning, handover, acquisition, repowering and major system changes.

Requirements

• Bachelor's degree in industrial engineering, Telecommunications Engineering, Computer Science, or a related engineering discipline.
• 5+ years of experience in OT data, industrial systems integration, automation or a comparable engineering role.
• Strong knowledge of OPC UA, Modbus, MQTT, SCADA data models, industrial communications.
• Experience in renewables, utilities or industrial environments with strong knowledge of IEC 62443 and OT cybersecurity principles.
• Hands‑on experience integrating SCADA, PLC, historian or industrial monitoring environments with enterprise platforms.
• Hands‑on experience with industrial Ethernet, TCP/IP, VLANs, routing, NAT, firewalls, VPNs, industrial switches and resilient network architectures.
• Practical understanding of ISA/IEC 62443 concepts, including zones and conduits, defence in depth, secure remote access and system security requirements. Experience troubleshooting production-critical interfaces, connectivity, tag mapping and data-quality issues.
• Experience with historians such as PI System, Canary, InfluxDB or equivalent technologies.
• Good SQL knowledge and familiarity with APIs, middleware, time-series data and systems integration patterns. (Desirable)
• Fluent in English
• Hands‑on problem solver with strong analytical and troubleshooting capability.
• Ability to produce interface specifications, data-flow diagrams and clear technical documentation.
• Understanding of OT networking, segmentation and secure remote access.
• Ability to translate cybersecurity requirements into practical and implementable OT network and communication controls.
• Strong communication and stakeholder-management skills, with the ability to collaborate effectively with OT, cybersecurity, IT Network, plant operations, EPCs, OEMs and O&M providers