OT Network Engineer

Design the networks that power critical infrastructure. At Morson Praxis, we’re the technical consultancy that actually delivers what it designs, supporting complex engineering environments where secure, resilient and high-performing operational technology (OT) networks are essential.

From energy and infrastructure to industrial and manufacturing systems, our teams deliver solutions that keep critical operations running safely and efficiently. We’re now looking for an experienced OT Network Engineer to design, implement and support secure industrial network environments across a range of high-impact projects.

If you’re passionate about network architecture, cyber resilience and working at the intersection of IT and OT, we’d love to hear from you. We’re looking for an OT Network Engineer to support the design and delivery of secure industrial network solutions. You’ll work as part of a multidisciplinary team, helping deliver robust and compliant network architectures across critical infrastructure environments.

Who We Are

At Morson Praxis, we combine engineering expertise with digital and systems capability to deliver solutions across energy, infrastructure, defence and advanced manufacturing.

As part of the wider Morson Group, we bring together specialist technical capability with the scale and reach of one of the UK’s leading technical organisations. Our teams work on complex, safety-critical environments where performance, security and reliability are paramount.

You’ll join a collaborative environment where innovation, technical excellence and continuous improvement are at the core of what we do.

What You’ll Do

As an OT Network Engineer, you will design, implement and support industrial network environments, including:

* Designing, implementing and maintaining OT network architectures

* Configuring and managing Layer 2 / Layer 3 networks (VLANs, routing, trunking)

* Deploying and supporting industrial networking hardware (Cisco IE, Siemens Scalance, Schneider Electric switches)

* Diagnosing and resolving network performance, stability and resilience issues

* Configuring, managing and troubleshooting firewalls (Cisco ASA, Siemens Scalance, pfSense)

* Implementing network segmentation aligned with NIST frameworks and Purdue Model principles

* Deploying and managing secure remote access solutions (e.g. Siemens Sinema RC)

* Designing and implementing DMZ architectures between IT and OT environments

* Deploying and managing virtual environments (VMware, Hyper-V, Proxmox)

* Managing system resources within virtualised infrastructure

* Configuring and maintaining Microsoft Active Directory (users, groups, GPOs, trusts)

* Performing system monitoring, maintenance and security patching

* Maintaining accurate documentation, network diagrams and configuration baselines

* Collaborating with multidisciplinary teams to ensure secure, reliable operation of critical systems

What We’re Looking For

* Experience in OT, industrial networking or critical infrastructure environments

* Strong understanding of Layer 2/3 networking principles

* Experience with industrial networking hardware (Cisco, Siemens, Schneider Electric or similar)

* Knowledge of OT cybersecurity principles, including network segmentation and Purdue Model

* Experience with firewall configuration and network security

* Familiarity with virtualisation platforms (VMware, Hyper-V, Proxmox)

* Working knowledge of Microsoft Active Directory

* Strong problem-solving skills and ability to troubleshoot complex systems

* Excellent communication skills and ability to work across multidisciplinary teams

Why Praxis?

💡 Work on critical systems: Support infrastructure that underpins energy, industry and national capability.

🚀 Develop your expertise: Build advanced skills in OT networking, cybersecurity and system design.

🤝 Collaborate: Work with engineers, digital specialists and infrastructure experts.

🌍 Make an impact: Your work directly supports secure and resilient operational environments.

🏢 Belong: Be part of a forward-thinking consultancy within the wider Morson Group.

What’s in it for you:

26 days annual leave plus bank holidays

Company-funded professional memberships

Family-friendly policies including enhanced maternity, paternity and adoption leave

Life assurance scheme

24/7 GP access

Funded team events and socials

Mega-projects throughout the UK and internationally

Employee Assistance Programme

High-street discount scheme

Enhanced company sick pay

Mental health wellbeing app

Specsavers discount scheme

Morson Praxis is proud to be an equal opportunities employer:

We value diversity and are committed to fostering an inclusive, respectful, and supportive working environment where everyone can thrive. We welcome applications from all individuals and make our employment decisions based on merit, qualifications, and business needs, regardless of age, gender, disability, ethnicity, religion or belief, sexual orientation, or any other protected characteristic