Salary: £29,000 - 58,000 per year Requirements: Strong hands-on experience in enterprise networking (OSPF, BGP, secure traffic design) Deep knowledge of Palo Alto firewalls and Zero Trust security principles Experience with data centre technologies (VXLAN/EVPN, VRF, multi-site fabrics, load balancing) Proven network automation skills (Python, Ansible, Terraform, CI/CD) Solid cloud and hybrid networking experience (Azure, AWS, or OCI) Background delivering engineering solutions in large-scale, complex environments Active SC Clearance Responsibilities: Design, implement, and enhance enterprise network infrastructure across data centre, hybrid, and cloud environments Engineer and implement network traffic flows to support business-critical services Build and maintain secure hybrid connectivity across Azure, AWS, and OCI Implement and manage Palo Alto firewall policies across on-prem and cloud environments, aligned to Zero Trust principles Design and operate high-availability network services, including routing, segmentation, and resilience Develop and maintain network automation using tools such as Python, Ansible, and Infrastructure as Code Collaborate with architecture and platform teams to ensure solutions align with engineering standards and strategic direction Contribute immediately to delivery work, demonstrating the ability to operate with minimal ramp up Document designs and changes clearly and consistently, supporting maintainability and knowledge sharing Technologies: AWS Ansible Azure CI/CD Cloud Firewall Support Load Balancing Marketing Network Python Security Terraform DevOps More: We are Certain Advantage, hiring for a Senior Infrastructure Engineer based in Manchester, Blackpool, Newcastle, Leeds, or Birmingham. This role is an initial contract until the end of March 2027. We strive to find the best talent to design, build, and evolve large-scale enterprise network platforms that are modern, automated, and cloud-integrated. We go the extra mile to help you make an impact and grow your career, working with businesses across the UK in Finance, Marketing, IT, and Engineering. last updated 17 week of 2026