Senior Network Engineer – Hybrid (On-Prem & Cloud)

FNZ (UK) Ltd; City of Edinburgh; Hybrid; GBP 70,000 - 100,000; Full time

Benefits offered by this job

Flexible working options

Hybrid working

Private health insurance

Life insurance

Fully funded training & development

Paid parental leave

Volunteer leave

Job summary

FNZ is seeking a Senior Network Engineer in Edinburgh to manage and optimise a hybrid on-premise and cloud network estate. You will lead high-availability networking, drive security, and work across Platform Services to deliver reliable outcomes.

This role requires advanced routing, switching, and network automation expertise, with hands-on responsibility for incident response and continuous improvement of network services across the business-critical platforms FNZ supports.

Qualifications

• Strong experience configuring, maintaining, and troubleshooting enterprise-class network environments.
• Experience supporting complex network infrastructure across on-premises, hybrid, and public cloud environments.
• Strong incident response and problem-solving in business-critical environments.

Responsibilities

• Operate, maintain, and optimise FNZ’s enterprise network infrastructure.
• Act as senior escalation point for complex network incidents and service issues.
• Troubleshoot and resolve network performance, availability, and connectivity issues.
• Support lifecycle management activities including upgrades, patching, configuration improvements, and infrastructure refreshes.
• Contribute to design and delivery of network solutions for new and existing systems.
• Collaborate with Architecture to implement tooling, infrastructure, and capabilities.

Skills

Cisco Nexus

L2/L3 design

OSPF

BGP

VXLAN/NSX-T

Network security

F5 LTM/GTM

Network automation

Cloud networking (AWS/Azure/GCP)

LogicMonitor

Tools

Terraform

Ansible

CI/CD pipelines

Job description

FNZ is seeking a Senior Network Engineer in Edinburgh to manage and optimise a hybrid on-premise and cloud network estate. You will lead high-availability networking, drive security, and work across Platform Services to deliver reliable outcomes.

This role requires advanced routing, switching, and network automation expertise, with hands-on responsibility for incident response and continuous improvement of network services across the business-critical platforms FNZ supports.