Network Administrator

Network Administrator Jobs UK 2026:
Powerful Hybrid IT Opportunity with Visa Sponsorship – Apply Now

We are looking for a driven and detail‑orientated Network Administrator to join our growing security team in London City. The role involves protection and monitoring of the security posture of all client environments for Nexgen Communication Ltd.

Nexgen Communication Ltd is a premier provider of IT services committed to providing secure, scalable and dependable technological solutions to our clients in the fintech, cybersecurity, cloud services and data analytics space.

• Install, maintain network infrastructure including routers, switches, firewalls, wireless networks and VPNs.
• Monitor network performance and availability, ensuring dependability and security of IT systems.
• Setup and maintain Windows and Linux servers, cloud‑based services and virtual environments.
• Install, support and maintain broadband, VoIP, business connectivity solutions and PDQ payment terminals network equipment.
• Diagnose and troubleshoot network, hardware, software and connectivity issues for internal users and clients.
• Manage user accounts, permissions and access restrictions with Microsoft 365 and Active Directory.
• Perform system maintenance, security patching, virus management, data backups and disaster recovery.
• Maintain technical documentation, network schematics and asset inventories.
• Collaborate with technical teams to deliver infrastructure enhancements and new technology projects.
• Follow firm IT security policies, data protection standards and industry best practices.

• Degree in Computer Science, Information Technology, Network Engineering or similar discipline, or equivalent certification.
• Experience in network administration, systems administration or IT infrastructure support.
• Strong understanding of TCP/IP networking, routing, switching, firewalls, VPNs and network security.
• Knowledge of Windows Server, Microsoft 365 and cloud technologies.
• Excellent analytical, troubleshooting and problem‑solution skills.
• Excellent communication skills and ability to work independently and as part of a team.

• Working from home.
• Pension plan.
• 28 days paid annual leave inclusive of public holidays.
• Continued professional education and career development.
• Opportunity to work with state of the art networking, cloud and cybersecurity technology.

Hybrid Remote – London E1 1NL
.

Candidates wishing to apply should email their CV and covering letter.

• Position:
  Network Administrator
• Job Type: Full‑Time
• Location:
  
  Hybrid Remote, London E1 1NL
• Remote Working:
  Hybrid

This opportunity is ideal for IT professionals who want to advance their careers in a leading UK technology company, working with modern networking infrastructure, cloud platforms, cybersecurity technologies, and enterprise IT systems, while benefiting from structured career development and UK visa sponsorship.