OT Security Arctitect

OT Security Arctitect

__vacancyopjusttionswidget.opt-Type of Employment__ Full-time

__vacancyopjusttionswidget.opt-Brands__ Vattenfall

__vacancyopjusttionswidget.opt-Unit__ Wind

__vacancyopjusttionswidget.opt-Category__ IT

__vacancyopjusttionswidget.opt-Location __ Amsterdam

__vacancyopjusttionswidget.opt-Job Type__ Professional

__vacancyopjusttionswidget.opt-Employment Type__ Permanent

__jobinformationwidget.freetext.ExternalReference__

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Join Vattenfall to lead and shape the OT (Operational Technology) security architecture capability that underpins our operational technology platforms across sites and fleets.

This is not only an architecture role. You will act as a Technical Authority for OT security, owning standards, guiding engineering teams, and ensuring consistent and secure solutions across projects and operational assets.

You will play a key role in building and developing OT security competencies across Digital Engineering, while ensuring our architectures are robust, compliant, and scalable.

What youll do

Architecture & Governance

Define, publish, and maintain the OT security architecture baseline based on IEC 62443 and relevant standards

Own the design, selection, and lifecycle of OT security controls and architectures across projects and operational assets

Establish and enforce security standards, reference architectures, and design guardrails

Act as the technical escalation point for complex OT security decisions and risk trade-offs

Technical Authority & Capability Building

Act as Technical Authority for OT security, ensuring quality and consistency of engineering solutions

Guide, coach, and challenge engineering and project teams on secure design and implementation

Drive competence development in OT security across engineering teams (methods, tooling, best practices)

Translate security requirements into clear, actionable guidance for engineers, operations, and stakeholders

Security Engineering & Operationalisation

Own and steer key OT security workflows (segmentation, access management, hardening/patching, logging/detection, incident response, backup)

Ensure these workflows are standardised, embedded in roadmaps, and consistently implemented across sites and projects

Define and maintain OT Security Provisions for primary OT zones, including technical patterns and operational requirements

Support projects and assets in implementing, operating, and continuously improving these provisions

Architecture Integration & Stakeholder Alignment

Contribute to and shape OT/IT reference architecture, including zone models and secure integration patterns

Anchor security control decisions across business units, working with security and compliance functions

Lead design reviews, risk assessments, and formal approvals of OT security architectures

Qualifications

Experience & Expertise

Extensive experience in OT cybersecurity and security architecture, ideally in energy, renewables, or industrial environments

Strong expertise in IEC 62443, with experience applying related standards (ISO 27001, ISO 27019, NIS2) in real-world architectures

Deep knowledge of segmentation, DMZ architectures, secure remote access, and cross-domain data flows

Technical Authority & Leadership

Proven track record acting as a senior technical lead or authority across multiple systems or projects

Ability to make and defend architectural decisions, including balancing risk, availability, and operational constraints

Strong experience driving standardisation, governance, and cross-team alignment