Industrial OT Network Engineer – Secure, Resilient Factory IT

Investigo; Birmingham; On-site; GBP 55,000 - 75,000; Full time

Job summary

Investigo is seeking a Network Engineer to support Manufacturing/Factory OT networks across multiple sites in the UK. The role is based in Birmingham with 2 days on-site per week and requires strong collaboration with cyber security, project teams and vendors.

You'll help deliver secure, resilient OT network services, manage Cisco/Catalyst infrastructure, Fortinet firewalls, Cisco ISE/TrustSec, and contribute to network transformation and security initiatives.

Qualifications

• Minimum 5 years in enterprise or OT network environments.
• Strong understanding of TCP/IP, LAN/WAN, VLANs, routing, and troubleshooting.
• Experience with Fortinet, Cisco ISE/TrustSec and Cisco Meraki.
• Ability to coordinate with vendors and internal teams on security initiatives.

Responsibilities

• Develop and deliver OT network strategy, standards and architecture.
• Maintain factory and core network infrastructure across sites.
• Manage Cisco/Catalyst, VLANs, trunking, L2/L3 networking.
• Administer Fortinet firewall environments and security controls.
• Support Meraki wireless infrastructure and Cisco ISE/TrustSec.
• Oversee Cisco Cyber Vision initiatives for asset visibility and vulnerability management.
• Monitor performance and ensure SLAs are met.
• Coordinate with suppliers and service providers to maintain continuity.
• Deliver network changes, upgrades, and lifecycle activities with minimal disruption.
• Ensure changes are documented and tested through change processes.

Skills

OT network experience

TCP/IP networking

Troubleshooting

Documentation skills

Change management

Stakeholder communication

Tools

Fortinet firewalls

Cisco ISE

Cisco TrustSec

Cisco Meraki

Cisco Catalyst switches

Cyber Vision

Job description

Investigo is seeking a Network Engineer to support Manufacturing/Factory OT networks across multiple sites in the UK. The role is based in Birmingham with 2 days on-site per week and requires strong collaboration with cyber security, project teams and vendors.

You'll help deliver secure, resilient OT network services, manage Cisco/Catalyst infrastructure, Fortinet firewalls, Cisco ISE/TrustSec, and contribute to network transformation and security initiatives.