Senior OT Network Architect (Remote/Hybrid)

Jobgether; Netherlands; Hybrid; EUR 85,000 - 130,000; Full time

Benefits offered by this job

Flexible working

Competitive salary

Career development

Mentorship programs

Training sessions

Centers of excellence

Knowledge sharing

Education reimbursement

Team building

Location-based benefits

Job summary

Jobgether in the Netherlands seeks a Senior Network Design Engineer to translate OT security architectures into detailed network, firewall, and IDS designs across brownfield environments. You will work with Network Operations, Security Architecture, and site stakeholders to ensure secure and reliable industrial connectivity.

You will analyze logs, define segmentation, and produce Low-Level Designs and documentation for implementation teams, while contributing to a flexible, collaborative work

Qualifications

• At least 5 years of experience in IP networking and network design, preferably within OT or industrial environments.
• Strong understanding of IP networking fundamentals, including VLANs, subnetting, routing, and network segmentation.
• Hands-on expertise with firewall technologies, including interfaces and zones, routing, NAT, access-control policies, logging, and traffic analysis.
• Experience designing and implementing firewall-based segmentation in brownfield OT environments.
• Knowledge of Purdue architectures, industrial DMZs, and industrial protocols.
• Experience with OT IDS technologies and their deployment in industrial network environments.
• Ability to translate high-level architecture and security requirements into detailed network, firewall, and IDS designs.
• Strong technical documentation skills for Low-Level Designs and implementation-ready network documentation.

Responsibilities

• Translate approved OT security and network architectures into detailed designs.
• Convert security zones into practical network configurations, including VLANs, subnets, routing, firewall boundaries, and connectivity.
• Develop detailed firewall designs covering interfaces, zones, traffic flows, access rules, protocols, ports, and services.
• Analyze firewall logs and network traffic to identify, understand, and validate OT communication dependencies.
• Translate OT IDS architectures into detailed deployment designs, including sensor and collector placement, connectivity, and traffic visibility requirements.
• Define SPAN, TAP, and traffic mirroring requirements to support IDS monitoring.
• Design solutions for brownfield OT environments considering existing infrastructure and constraints.
• Produce Low-Level Designs (LLDs) and technical documentation for implementation teams.
• Collaborate with Network Operations, project teams, and site stakeholders throughout design and implementation.
• Support implementation, troubleshooting, and validation to ensure configurations meet architectures and designs.

Skills

IP networking

VLANs

Subnetting

Routing

Network segmentation

Firewalls

NAT

Access control

Logging

Traffic analysis

OT IDS

SPAN

TAP

Traffic mirroring

Purdue architectures

Industrial DMZs

Industrial protocols

Documentation

Job description

Jobgether in the Netherlands seeks a Senior Network Design Engineer to translate OT security architectures into detailed network, firewall, and IDS designs across brownfield environments. You will work with Network Operations, Security Architecture, and site stakeholders to ensure secure and reliable industrial connectivity.

You will analyze logs, define segmentation, and produce Low-Level Designs and documentation for implementation teams, while contributing to a flexible, collaborative work