OT Security Engineer

OT Security Engineer – Design Security Where It Matters Most

Imagine this:

A production plant is running 24/7. Its control systems are connected, its processes automated — and every minute of uptime counts. You’re not just the architect of the network; you’re the reason it stays secure. Your design prevents downtime. Your integration keeps systems protected. Your decisions, quietly made, make all the difference.

As an OT Security Engineer at Yokogawa , you’ll build and secure the digital foundation of some of the world’s most essential industries — ensuring that safety, stability, and sustainability go hand in hand.

The Role – Security by Design, Delivered with Precision

You’ll be part of the OT Security Team within the Operations NL Team — a diverse group of specialists with complementary skillsets and a shared mindset: protect what matters. You’ll design and implement robust OT cyber security architectures that align with real-world operations and critical infrastructure needs.

You are the technical lead for security solutions in projects. You bring together routers, firewalls, directory services, antivirus, and backup systems into a cohesive, secure, and fully documented environment.

What You’ll Be Doing

As an OT Security Engineer , you’ll take the lead in:

• Designing and delivering secure OT network architectures from scratch.
• Selecting security solutions for project proposals — balancing compliance, risk, and performance.
• Implementing and testing security components like Windows Server, Active Directory, WSUS, antivirus , backup systems , Industrial Network Elements , Network Management Solutions (NMS) and Intrusion Detection Solutions (IDS) .
• Configuring and troubleshooting routers, switches, and firewalls .
• Configuring and maintaining virtualized environments .
• Creating and maintaining as-built documentation that ensures clarity and continuity.
• Supporting the full lifecycle of security solutions — from concept to continuous improvement.
• Collaborating across disciplines to integrate security into every layer of the system.

What You’ll Need to Succeed

You’re someone who thrives at the intersection of technology and responsibility . You understand the demands of industrial environments and bring a secure-by-design mindset to everything you do.

You bring:

• An MBO-4 or HBO degree in IT or a related field.
• Solid knowledge of Windows Server, Active Directory, WSUS, Antivirus solutions , Back-up and virtualization .
• Experience with Networking equipment (switches, routers, firewalls).
• A structured, hands‑on approach to problem solving.
• Strong communication skills in either Dutch or English .
• willingness to travel within the Netherlands frequently and from time to time abroad
• willingness to be periodically part of the 24/7 team
• A solution‑focused, flexible attitude and customer‑centric mindset.

What You’ll Get in Return

We believe in trust, development, and work that matters — and we make sure our people feel that too.

• 31 days off (25 vacation + 6 ADV)
• 8% holiday pay , paid in May
• A guaranteed 5% annual bonus
• Travel allowance and home office compensation
• A laptop and phone you can use privately too
• An international learning & development program
• Hybrid working options depending on project phase
• Collective accident insurance and peace of mind

Why Yokogawa?

Yokogawa has been pioneering industrial automation for over a century. Today, our focus is clear: enable industries to become safer, smarter, and more sustainable.

We’re committed to achieving net-zero emissions , supporting the circular economy , and improving well- being — with a long-term vision for 2050 and beyond. At Yokogawa, you won’t just build systems. You’ll build security into the future.

Ready to architect security where it truly counts?