OT Network Architect - #48103

Job Description

Shape the secure backbone of Belgium’s critical infrastructure

As an OT Network Architect, you define, govern and continuously evolve the Operational Technology (OT) network architecture that underpins our industrial and critical infrastructure. You act as a key authority within network governance, ensuring secure, compliant and future‑proof designs that align with business, operational and regulatory needs, including NIS2 requirements in Belgium.

What You’ll Do

• You design secure, resilient and scalable OT network architectures across industrial environments.
• You translate operational, safety and cybersecurity requirements into clear, implementable network designs.
• You define, document and enforce OT network standards, design principles and technical guardrails.
• You review and approve architectures, manage exceptions and support risk acceptance processes.
• You support OT, digitalisation and engineering projects throughout their full lifecycle with hands‑on guidance.
• You ensure OT network designs comply with cybersecurity policies, IEC 62443 and NIS2 obligations.
  
  

What You Bring

• You hold a Master’s degree in Industrial or Civil Engineering, or equivalent experience.
• You bring strong experience in industrial or enterprise network administration.
• You have solid knowledge of firewalls, VLANs, IDS/IPS systems and network segmentation.
• You are experienced with Cisco switches or similar technologies and are eager to deepen your NGFW expertise.
• You understand OT network constraints, cybersecurity principles and IEC 62443 concepts such as Zones & Conduits.
• You work in a structured, proactive way and communicate clearly with technical and non‑technical stakeholders.
  
  

Benefits Of Working At Luminus

• The energy sector is one of the most rewarding industries in Belgium with a highly rewarding compensation and benefits package:
• Competitive compensation: Attractive salary with a performance-based bonus that can be optimized to your personal preferences, plus meal vouchers.
• Insurance & social benefits: Group insurance and hospitalization coverage for the entire family. Additional reimbursement for healthcare and pharmaceutical costs.
• Mobility: Full reimbursement for public transport, kilometer-based cycling reimbursement and flexible mobility choices.
• Internet & communication: Home internet covered, reimbursement for a personal mobile device with a phone subscription.
• Home Office: A fully-equipped home office, including an ergonomical ICT set-up.
• Exclusive discounts: 30% off gas and electricity after six months, discounts on energy-saving services (e.g., solar panels, heat pumps) and reduced prices on top brands, amusement parks, festivals and more.
• You play a key role in securing the network foundation of Belgium’s critical national infrastructure.
• You work with advanced OT network and cybersecurity technologies in a highly strategic environment.
• You join a supportive team with strong training opportunities and long‑term career perspectives at Luminus.
• You work and connect with your colleagues at a Luminus office or from home. Need some flexibility? Your manager is open to discuss what works.
  
  

Luminus values e.v.e.r.y individual.

Are you looking for a workplace where you can truly be yourself, where you feel respected, supported regardless of your background, identity and unique story? Then you’ve come to the right place. Diversity equity and inclusion are not empty words for us — we grant that everyone can flourish and feel valued, so let’s build it together!

What does that mean in practice?

Do you have specific needs or require adjustments during the recruitment process or once you are hired? Let’s discuss about it and we’ll do our best to find a solution. We can also discuss if you want to work at 80% or 100%.

Together we make the difference