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Senior Network Infrastructure Specialist

Job in Cardiff, Cardiff City Area, CF10, Wales, UK
Listing for: WSP in the UK & Ireland
Full Time position
Listed on 2026-05-18
Job specializations:
  • IT/Tech
    Cybersecurity, Systems Engineer, IT Support, Systems Administrator
Salary/Wage Range or Industry Benchmark: 80000 - 100000 GBP Yearly GBP 80000.00 100000.00 YEAR
Job Description & How to Apply Below

What if you could do the kind of work the world needs? At WSP, you can access our global scale, contribute to landmark projects and connect with the brightest minds in your field to do the best work of your life. You can embrace your curiosity in a culture that celebrates new ideas and diverse perspectives. You can experience a world of opportunity and the chance to shape a career as unique as you.

To ensure the efficient operation of WSPs internal Network services, we are seeking a talented and experienced senior network infrastructure specialist. The senior network infrastructure specialist will play a pivotal role in helping to maintain the integrity of deployed network infrastructure and services, ensuring it is well documented, proactively evaluating how it is operating, and developing plus executing plans to optimize the environment.

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,…
Position Requirements
10+ Years work experience
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