Senior Network Security Engineer | Palo Alto, Public Cloud, Cisco | Mission-Critical Global Platforms
* Windsor, Berkshire - 4 days onsite, 1 day from home
* Permanent, Full-time
The role
You will join a global Managed Services and Infrastructure team (2000 employees globally with a team of 10 in Ireland, growing month-by-month), responsible for securing large-scale software platforms used across healthcare, financial services and government environments worldwide.
This is a senior-level network security engineering role focused on designing and standardising security controls across hybrid cloud, multi-cloud (Azure, AWS, GCP) and datacentre environments (mainly Linux). A big part of the role is helping shape how network security is delivered globally as the business continues moving from traditional hosted infrastructure into cloud and SaaS platforms.
You will work closely with network, cloud and platform engineering teams to improve segmentation, secure connectivity and zero trust adoption across the wider estate. The role combines architecture, engineering and operational ownership, with responsibility for troubleshooting high‑severity network security issues when required.
There are two huge projects that you'll be involved in:
* Work with the newly created cloud team who are architecting a Kubernetes multi‑cloud environment. You will be the network authority here so experience of networking within public cloud environments will be really key for success here. Exposure to any AWS, Azure, GCP will be OK.
Non‑Negotiables
* Panorama
* Secure Network Design
* VPN & Remote Access
* AWS Network Security
* Azure Security Controls
* Zero Trust Architecture
* Network Security Troubleshooting
* Experience in enterprise or regulated environments
What You'll Work With
* Palo Alto firewall platforms
* Hybrid cloud environments
* Secure interconnects
* VPN technologies
* Firewall policy management
* NAT configuration
* Security incident response
* Enterprise networking environments
Core Responsibilities
* Design and implement network security architectures
* Standardise firewall platforms and configurations globally
* Lead segmentation and zero trust initiatives
* Support secure connectivity across cloud and datacentre environments
* Implement and maintain VPN and remote access solutions
* Work with cloud and platform teams to enforce security policies
* Troubleshoot and resolve network security incidents
* Improve operational standards and security best practices
* Mentor engineers across the wider infrastructure function
* Support ongoing cloud transformation initiatives
Examples of the work
* Standardising Palo Alto environments across global infrastructure
* Designing segmentation strategies for regulated environments
* Securing hybrid connectivity between cloud and datacentre platforms
* Improving zero trust controls across internal platforms
* Supporting cloud migration and SaaS transformation projects
* Responding to complex network security incidents
Nice to Haves
* PCNSE
* CCNP Security
* CISSP
* Experience within healthcare, finance or regulated sectors
* Public cloud migration experience
* Private cloud infrastructure exposure
* Automation or Infrastructure as Code exposure
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