Haystack
← Back to Jobs
Full time
Technology
PA

IT Systems & Network Administrator

ParksideLondon🇬🇧United KingdomPosted 17 Aug 2026

Why This Role Stands Out

Step into a vital role at Parkside, where you'll gain hands-on experience managing critical IT infrastructure and enhancing network security, offering excellent career growth potential. This position is ideal for a proactive IT professional with a strong background in network administration and virtualization, who is eager to contribute to a reputable company. Apply now to leverage your expertise and advance your career in this impactful on-site opportunity.

Quick Overview

Salary
£50k/yr
Seniority
Mid Senior
Employment type
Full Time
Work mode
On Site
Location
London, United Kingdom
Active DirectoryPowerShellVMware

Job Description

IT Systems & Network Administrator
ONSITE Heathrow / Heston
£50,000 £80,000 depending on experience

We are recruiting for an experienced and hands-on IT Systems & Network Administrator to join our client s IT team.
This is a varied infrastructure role covering network administration, firewall management, virtualisation, servers and end-user support. Strong, practical experience with SonicWall and VMware ESXi/vSphere is essential.

Key Responsibilities
  • Configure, manage and troubleshoot SonicWall firewalls, including VPNs, security policies and access rules.
  • Administer VMware ESXi/vSphere, including virtual machines, backups, snapshots and performance.
  • Support Windows Server and Active Directory environments.
  • Provide 1st and 2nd line support across hardware, software, network and connectivity issues.
  • Monitor and maintain network, server and virtual infrastructure.
  • Support backup, disaster recovery and security requirements.
  • Work with external IT suppliers and support infrastructure projects where required.
About You
  • 5+ years' experience in an IT Systems, Network Administration or Infrastructure role.
  • Proven hands-on experience with SonicWall firewalls this is essential.
  • Strong knowledge of VMware ESXi/vSphere.
  • Experience with Windows Server and Active Directory.
  • Excellent troubleshooting and problem-solving skills.
  • A proactive, hands-on approach with the ability to take ownership of issues.
  • Strong communication and customer service skills.
Relevant IT certifications and experience of multi-site environments, PowerShell or infrastructure monitoring tools would be advantageous.
The Package Salary: £50,000 £80,000 depending on experience
Location: Heathrow / Heston
Working: Fully office/depot based no remote working

If you are an experienced IT infrastructure professional with strong SonicWall and VMware experience and are looking for a hands-on role, we would be keen to hear from you.

Similar jobs