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NEXTECH GROUP Logo NEXTECH GROUP · IT - Administration

Senior Infrastructure Engineer

United Kingdom, St Ives Employment contract 50000.00 - 60000.00 GBP / Year · Job Posted June 30, 2026
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Job Description

Our client is a growing IT Service Provider and they are looking for an experienced Senior Infrastructure Engineer to join the team, supporting a wide range of client environments across networking, cloud and core infrastructure technologies. This is a hands-on technical role with a strong networking focus, ideal for someone who enjoys designing and delivering robust infrastructure solutions while acting as a senior technical point of escalation.

Job Responsibility

  • Deliver infrastructure and networking projects across multiple client environments
  • Design, implement and support LAN, WAN, WLAN, VPN and firewall solutions
  • Act as a senior technical escalation point for complex infrastructure and networking issues
  • Support infrastructure assessments, technical onboarding activities and solution reviews
  • Design, document and maintain network and infrastructure solutions
  • Work closely with internal teams to support project delivery and pre-sales technical discussions
  • Drive automation, standardisation and continuous service improvements
  • Maintain accurate technical documentation, network diagrams and operational procedures
  • Research and evaluate new technologies to enhance client environments and service offerings

Requirements

  • Strong understanding of networking technologies including DNS, DHCP, TCP/IP, WAN, LAN, WLAN, VLAN and VPN
  • Hands-on experience with firewall and networking platforms including Fortinet, Cisco Meraki, Sophos, WatchGuard and UniFi
  • Strong understanding of network security principles and best practices
  • Experience supporting Microsoft infrastructure technologies including Windows Server, Active Directory, Microsoft 365, Azure, Entra ID, MFA and SSO
  • Experience supporting cloud platforms including Microsoft Azure, AWS or Google Cloud
  • Virtualisation experience with VMware, Hyper-V or Citrix environments
  • Strong troubleshooting, documentation and technical problem-solving skills
  • Experience delivering technical projects and infrastructure upgrades

Nice to have

  • Fortinet certifications (FCA/FCP) or strong Fortinet experience
  • CCNA, CCNP, Network+ or equivalent networking certifications
  • Experience with network monitoring and management platforms
  • Microsoft or cloud-related certifications
  • Experience supporting multi-site and multi-customer environments

What we offer

  • Salary up to £60,000
  • Flexible working arrangements
  • Exposure to a broad range of networking, cloud and infrastructure technologies
  • Opportunity to influence technical standards and solution design
  • Involvement in varied project work across multiple client environments
  • Supportive and collaborative technical team
  • Genuine opportunities for career progression
  • Company pool vehicle available for business-related travel
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