Network Architect

X4 Technology; United States; Remote; GBP 70,000 - 100,000; Full time

Job summary

X4 Technology is seeking a Network Architect (IT/OT) for a 2-year contract. This remote role involves shaping enterprise network architecture across multiple sites and coordinating with IT and OT teams, with limited travel to sites as required.

You will design secure LAN/WAN layouts, implement SD-WAN where relevant, and ensure resilience, security, and availability across distributed locations. Interviews are in Oct 2026; start date in Nov 2026.

Qualifications

• Experience designing multi-site LAN/WAN networks.
• Strong knowledge of network security, firewall design and secure remote access.
• Experience in industrial/OT environments is advantageous.
• Ability to translate operational requirements into secure, scalable network solutions.

Responsibilities

• Define network architecture and connectivity standards for a multi-site enterprise environment, supporting both corporate IT and OT.
• Design secure network layouts covering site connectivity, routing, switching, firewalls and controlled access between different network zones.
• Establish resilient connectivity solutions that support operational continuity, availability and recovery across distributed locations.
• Work alongside infrastructure, cybersecurity and site engineering teams to ensure network designs meet technical, security and operational needs.
• Produce network designs, architecture documentation and implementation guidance to support consistent deployment across multiple sites.

Skills

Enterprise LAN/WAN

IT/OT security

Firewall design

SD-WAN

Network zoning

Industrial environments

Stakeholder communication

Job description

Contract Length: 2 Year Project (6 monthly rolling)

Location: Remote with very limited travel to site throughout

Network Architect (IT/OT) - Role & Responsibilities

• Define network architecture and connectivity standards for a multi-site enterprise environment, supporting both corporate IT and operational technology.
• Design secure network layouts covering site connectivity, routing, switching, firewalls and controlled access between different network zones.
• Establish resilient connectivity solutions that support operational continuity, availability and recovery across distributed locations.
• Work alongside infrastructure, cybersecurity and site engineering teams to ensure network designs meet technical, security and operational needs.
• Produce network designs, architecture documentation and implementation guidance to support consistent deployment across multiple sites.

Network Architect (IT/OT) - Required Experience

• Strong background in enterprise network architecture, with hands-on experience designing complex LAN/WAN environments and multi-site connectivity.
• In-depth understanding of network security, including firewall design, segmentation, secure remote access and separation of IT and OT environments.
• Experience designing resilient network infrastructures, including redundancy, high availability and reliable connectivity across distributed sites.
• Ability to engage with technical and non-technical stakeholders, translating operational requirements into secure, scalable network solutions.
• Experience in industrial, manufacturing, factory or other operational technology environments is advantageous, as is knowledge of SD-WAN, industrial network security and network zoning.

Interviews: October 2026

Start Date: November 2026