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Senior Network Infrastructure Specialist

Job in Caerphilly, Caerphilly County, CF83, Wales, UK
Listing for: WSP
Full Time position
Listed on 2026-05-31
Job specializations:
  • IT/Tech
    Cybersecurity, IT Support, Systems Engineer, Systems Administrator
Job Description & How to Apply Below

A little more about your role…

If you’re energized by continuously seeking improvement, optimizing deployed environments, and delivering real operational impact, then this role is for you.

Key Responsibilities
  • Proactive management and performance of service suppliers and/or manufacturer activities to align with expected service levels.
  • Establishing & maintaining standards, processes & procedures relating to the operation of all aspects of the services.
  • Remaining current in the knowledge and use of technology to provide recommendations for improving the consistency and cost effectiveness of the services.
  • Ensuring that appropriate documentation is available and accurate.
  • Develop, monitor, and manage metrics and KPIs to proactively assess infrastructure performance and capacity.
  • Creating, executing, and managing repeatable routines that proactively identify improvements.
  • Conducting regular scheduled capacity planning/management activities.
  • Developing and implementing plans to proactively remediate identified performance, health, or capacity issues.
  • Auditing for standards compliance.
  • Supporting activities for IT regulations and compliance.
  • Enhancing and enforcing service transition processes that protect the stability of network operations.
  • Planning for the execution of business continuity testing, reporting, and gap resolution.
  • Supporting problem management to resolve recurring issues.
  • Support the IT budget process by providing input and direction as it relates to infrastructure and services.
  • Manage the lifecycle of infrastructure hardware components, software, licenses, and support subscriptions.
  • Own & maintain the integrity of the network asset data across all IT platforms.
  • Evaluating and improving the effectiveness of operational monitoring.
What we will be looking for you to demonstrate…
  • Bachelor’s degree in information technology, Computer Science, Engineering, or related field.
  • Relevant and practical experience in a Network Operations, Network Improvement/Service Excellence role.
  • Extensive in-depth knowledge of Network services and infrastructure.
  • Vendor certifications not a requirement, proven practical experience preferred.
  • Comfortable working collaboratively across a large, globally distributed enterprise IT environment.
  • Experience of working within ITIL aligned Service Management organisation.
  • Practical experience in managing large, complex, multi-vendor networks that include WAN, Wired & Wireless LAN, Perimeter Security, Security Services Edge (SSE), Application Delivery Controllers/ Load Balancing, Cloud Networking, and Remote Access VPN.
  • Experience in managing networks that encompass the following technologies is advantageous:
    • Software-Defined-WAN (preferably HPE Aruba)
    • Cloud Networking (preferably Microsoft Azure)
    • Cloud-based Internet Security (preferably Zscaler Internet Access)
    • Unified Communications (preferably Microsoft Teams)
    • Remote Access Solutions (preferably Zscaler Private Access)
    • LAN switching (preferably Cisco)
    • Wireless LAN (preferably Cisco)
    • Next Generation Perimeter firewall technologies (preferably Palo Alto)
    • Application Delivery Controllers & Load Balancing (preferably F5 Networks)
    • Identity and Access Control Policy platform (preferably Cisco Identify Services Engine)
  • Experience in Network Automation and Dev Ops practices is highly desirable.
  • Proficiency with automation tools such as Terraform, Ansible, Power Shell, Python, Git Hub/Git Lab CI, Azure Dev Ops, Service Now, and event-driven automation services is highly desirable.
  • Strong organizational skills, including prioritization, time management, and multi-tasking.
  • Excellent analytical and diagnostic problem-solving skills with the ability of providing solutions to identified problems.
  • Demonstrated experience in understanding and demonstrating compliance with information security requirements.
  • Knowledge and experience in performing information security practices in the management and delivery of infrastructure and operations.
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Position Requirements
10+ Years work experience
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