Senior Infrastructure Engineer

Senior Infrastructure Engineer - SC Cleared - 12 month contract - Hybrid

Contract Length: 12 months
Location: Newcastle (Preferred), Manchester, Leeds, Birmingham, or Blackpool (Peel Park)
Hybrid Working: Around 3 days on-site, 2 days remote.
Pay Rate: Max £650 per day (Umbrella) (Inside IR35)

Security Clearance: Mandatory Active SC Clearance is required for this role.

Role Overview

We are looking for a Senior Infrastructure Engineer (NetDevOps) to design, build, and evolve large-scale enterprise network platforms.

This isn't an operations or "maintenance" role. We need a builder-someone who can jump straight into design and delivery, applying NetDevOps principles to support critical, high-availability services. You'll be bridging the gap between traditional networking and modern cloud-integrated infrastructure.

Key Responsibilities

• Design & Implementation: Build and enhance enterprise network infrastructure across data centers, hybrid, and multi-cloud environments (Azure, AWS, OCI)
• Security First: Implement Palo Alto Firewall policies aligned with Zero Trust principles
• Traffic Engineering: Optimize complex OSPF and BGP environments for maximum resilience.
• Automation: Replace manual tasks with Python, Ansible, and Terraform to drive speed and consistency
• Collaboration: Work alongside Architecture and Cloud teams to ensure solutions are scalable and secure.
• Modernization: Drive the transition from Legacy systems to VXLAN/EVPN fabrics and SD-WAN technologies.

Essential Technical Skills (The "Must-Haves")

To be successful, you need deep, hands-on expertise in:

1. Enterprise Network Engineering
• Complex OSPF & BGP routing.
• Design of resilient, high-availability traffic flows.
2. Firewall & Security
• Extensive experience with Palo Alto Firewalls.
• Network segmentation and Zero Trust architecture.
3. Data Center Architecture
• VXLAN/EVPN, VRF segmentation, and multi-site fabrics.
• Experience with Arista (or equivalent) and F5 BIG-IP (LTM, APM, ASM).
4. Automation & NetDevOps
• Scripting with Python and Ansible.
• CI/CD pipelines (GitLab) and Infrastructure as Code (Terraform).

Desirable Skills (The "Nice-to-Haves")

• Aruba Central/ClearPass
• SD-WAN technologies
• SaaS and cloud-delivered WLAN/WiFi solutions
• Prior experience modernizing large-scale Legacy public sector networks

What This Role Is Not

• Not an Operations-only or monitoring role.
• Not a pure SRE role without deep networking roots.
• Not an Incident Management role without design/build responsibilities.

If you are interested, please apply directly.

Randstad Technologies is acting as an Employment Business in relation to this vacancy.