Senior Network Engineer

Vertage Inc.; Greater London; Hybrid; GBP 69,000 - 124,000; Full time

Job summary

Vertage Inc. in London is seeking an experienced Senior Network Engineer for a hands-on contract role within a large-scale enterprise. The role focuses on supporting, maintaining, and enhancing critical network services across the infrastructure.

You will drive automation with Python, Ansible or Terraform, handle CCNP-level tasks, and work with Cisco Nexus/UCS, F5, and Check Point in a regulated financial-services environment; strong routing and security skills required.

Qualifications

• CCNP level or equivalent experience.
• Experience in Financial Services or other highly regulated environments.
• Exposure to network automation and Infrastructure as Code (IaC) best practices.
• Strong routing, switching and network security knowledge.

Responsibilities

• Support and maintain enterprise network infrastructure and services.
• Troubleshoot and resolve complex network incidents and problems.
• Deliver network upgrades, enhancements, and project-based changes.
• Work with cross-functional teams across infrastructure, security, and cloud technologies.
• Drive automation and IaC adoption to improve operational efficiency.
• Contribute to continuous service improvement and operational excellence.

Skills

Routing & Switching

Network Security

Infrastructure Automation

Tools

Python

Ansible

Terraform

Cisco Nexus

UCS

F5

Check Point

Job description

London Hybrid working - 50%

SC Clearance required

We're partnering with a leading organisation to recruit an experienced Senior Network Engineer for an exciting contract opportunity. Joining a highly skilled infrastructure team, you'll play a key role in supporting, maintaining, and enhancing critical network services across a large-scale enterprise environment.

This is a hands-on position where you'll be responsible for network operations, troubleshooting complex issues, infrastructure improvements, and driving automation initiatives to improve efficiency, resilience, and service reliability.

Key Responsibilities

• Support and maintain enterprise network infrastructure and services.
• Troubleshoot and resolve complex network incidents and problems.
• Deliver network upgrades, enhancements, and project-based changes.
• Work with cross-functional teams across infrastructure, security, and cloud technologies.
• Drive automation and Infrastructure as Code (IaC) adoption to improve operational efficiency.
• Contribute to continuous service improvement and operational excellence.
• Cisco technologies (CCNP level or equivalent).
• Cisco Nexus and UCS environments.
• F5 Load Balancing and DNS.
• Check Point Firewall technologies.
• Strong routing, switching, and network security knowledge.
• Experience with automation tools such as Python, Ansible, or Terraform.
• Knowledge of ITIL-based operational processes.
• Experience within Financial Services or other highly regulated environments.
• Exposure to network automation and Infrastructure as Code best practices.