IT Systems Administrator – UK Visa Sponsorship Available

Job title: IT Systems AdministratorEmployer: Polyglobe, associated with AXENTHOR TECHNOLOGIES LTD.Location: London, United Kingdom.Salary: £45,000–£55,820 per year.Employment type: Full-time.Work arrangement: In person.Visa sponsorship: Listed in the job advert.Role overview: Maintain and support the organisation’s IT infrastructure, ensuring systems, networks and workplace technology remain secure, reliable and efficient.

Responsibilities

• Administer and maintain servers, operating systems, networks and cloud services.
• Manage user accounts, access permissions and employee onboarding, role changes and departures.
• Configure and support laptops, desktops, printers and other office equipment.
• Provide technical support and troubleshoot hardware, software and network connectivity issues.
• Administer Microsoft 365 or equivalent workplace platforms.
• Monitor system performance, availability and security, investigating and resolving incidents.
• Manage software updates, security patches, endpoint protection and multi‑factor authentication.
• Maintain backups, test data restoration and support disaster recovery planning.
• Keep IT documentation, asset inventories and software licence records accurate and up to date.
• Coordinate with external IT suppliers and service providers.

Requirements

• Previous experience in systems administration or a similar IT support role.
• Practical knowledge of Windows environments; Linux experience is an advantage.
• Experience with Microsoft 365, Active Directory or Microsoft Entra ID.
• Understanding of networking technologies, including:
  • TCP/IP, DNS and DHCP.
  • VPNs, firewalls and Wi‑Fi networks.
• Experience with backup solutions, endpoint security and access management.
• Strong troubleshooting, communication and organisational skills.
• Ability to prioritise tasks and work independently.
• Good written and spoken English.

Desirable qualifications and experience

• Familiarity with Azure, AWS or virtualisation platforms.
• Basic scripting skills in PowerShell or Bash.
• Microsoft, Cisco or CompTIA certifications.
• Experience supporting IT operations in a fintech or regulated business environment.

Benefits

• Annual salary of £45,000–£55,820 .
• UK visa sponsorship listed in the advert.
• Casual dress.
• Full‑time employment.

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