OT Cybersecurity Assurance Engineer – Lifecycle & FAT/SAT

Greenvolt; Madrid; On-site; EUR 60,000 - 90,000; Full time

Job summary

Greenvolt is seeking an OT Technology Assurance Engineer to act as the technical authority for OT cybersecurity across the asset lifecycle. You will ensure designs and operations meet Greenvolt requirements and best practices, providing hands-on assurance from design reviews through FAT/SAT, commissioning and operational support.

Responsibilities include reviewing OT architectures, leading security-by-design reviews, and coordinating with EPCs, OEMs and O&M providers to ensure secure integration

Qualifications

• Bachelor’s degree in Engineering or related field.
• 5+ years in cybersecurity operations or related functions.
• Experience reviewing OT architectures and engineering deliverables.
• Familiarity with IEC 62443, NIST CSF and ISO/IEC 27001.
• Experience with OT/SCADA environments and renewables is valued.
• Fluent in English

Responsibilities

• Maintain visibility across OT environments with asset inventories and monitoring.
• Review OT security architectures, segmentation, IAM and controls; lead reviews.
• Assure deliverables from EPCs, OEMs and O&M providers align with standards.
• Define OT security acceptance criteria and participate in FAT/SAT activities; document findings.
• Assess readiness for COD with SCADA funcionality, backups, remote access and handover docs.
• Review OT networks and SCADA architectures; advise on segmentation, hardening and patching.
• Provide OT due diligence for acquisitions and major asset changes.
• Coordinate interfaces with internal teams and third parties for smooth transitions.
• Escalate and coordinate troubleshooting and root-cause analysis for OT incidents.

Skills

OT cybersecurity

Vulnerability management

Security monitoring

Incident response

Root-cause analysis

Stakeholder management

Education

Bachelor's degree in Engineering

Job description

Greenvolt is seeking an OT Technology Assurance Engineer to act as the technical authority for OT cybersecurity across the asset lifecycle. You will ensure designs and operations meet Greenvolt requirements and best practices, providing hands-on assurance from design reviews through FAT/SAT, commissioning and operational support.

Responsibilities include reviewing OT architectures, leading security-by-design reviews, and coordinating with EPCs, OEMs and O&M providers to ensure secure integration