Senior Network Engineer

Radius Consultancy; City Of London; On-site; GBP 70,000 - 80,000; Full time

Job summary

Radius Consultancy seeks a Senior Network Engineer to join their London team. The role involves 35% project and design work and 65% BAU, with responsibilities covering network design, configuration and security across UK sites and European offices.

You will maintain routers/switches, support customer connections, and contribute to project delivery while engaging with stakeholders and managing changes in a global environment.

Qualifications

• Degree (or equivalent) in a computer related subject.
• Proven knowledge of Windows Server, Exchange Server, LANs, WANs, virtualization, TCP/IP, routing, SANs, and firewalls.
• Ability to maintain up-to-date IT knowledge across LAN, PCs, Voice and Data.
• Experience supporting IT infrastructure including networks and security hardware.
• Experience with IT security tools and change management.
• Strong commitment to customer facing service and staff development.
• Understanding of core Internet protocols (TCP/IP, UDP, DNS, SMTP, HTTP, BGP).

Responsibilities

• Support internal networks across UK sites and European offices.
• Contribute to IT network project delivery, including design, build and stakeholder communication.
• Maintain and configure routers, switches and related network equipment.
• Support customer connections, including server sockets and VLANs.
• Assist with configuration of internal and external switches.
• Assist in planning cabling, backups, redundancies and disaster recovery.
• Support telephony systems including ISDN and SIP services.
• Assist with EOL management and budgeting for replacements.
• Support network security through monitoring and audits.

Skills

Network design

TCP/IP

LAN/WAN

Firewalls

Active Directory

Encryption technologies

System monitoring

IT security

Virtualisation

Customer facing service

Education

Degree (or equivalent) in a computer related subject

Tools

Windows Server 2003+

Exchange Server

SANs

Active Directory

Job description

Senior Network Engineer - London - c£75,000 plus bonus and benefits and On-call

Radius is seeking a Senior Network Engineer for a global organisation based in London.

35% Project and design work and 65% BAU

Be able to produce basic Network designs

Responsibilities

• Support all internal networks across UK sites and European offices, reporting to the Head of Networks.
• Work with and provide cover for the Customer Networks and Product Development Manager.
• Contribute to IT network project delivery, including design, build and stakeholder communication.
• Maintain and configure all routers, switches, and related network equipment.
• Deliver and support customer connections, including server sockets, VLANs and similar services.
• Assist with the configuration of internal and external switches.
• Provide technical support for service-network cabling, including planning and deploying cabinet cabling.
• Support firmware and software updates for routers and switches.
• Assist with EOL management and ensure timely planning and budgeting for replacements.
• Support telephony systems, including ISDN and SIP services.
• Assist in maintaining backups, redundancies and disaster recovery processes for all network services.
• Support network security through monitoring, audits, baselining and working with internal and external assessors.
• Support security and monitoring systems such as Systems Observer and FireEye.
• Support assigned projects, including procurement meetings, budgeting and security assessments.

Requirements

• Degree (or equivalent ) in a computer related subject
• Must have knowledge of the following: windows 2003 and above, exchange server, LANs, WANs, virtualisation, TCP/IP, Routing, SANs, network design, firewalls, Active Directory, encryption technologies, system monitoring and management
• Ability to maintain an up-to-date knowledge of IT, LAN, PCs, Voice, Data and all associated software, fault isolation and problem resolutions.
• Proven and demonstrable experience in supporting IT infrastructure including networks, security hardware. Deep experience of one major network equipment provider is essential.
• Evidence of implementing IT security tools and techniques
• Practical experience on the management of change
• Good working knowledge of Information Governance and its application within IT
• Must be able to demonstrate commitment to customer facing service
• Ability to demonstrate significant experience of managing / motivating staff and developing staff
• Understanding of core Internet protocols (e.g., TCP/IP, UDP, DNS, SMTP, HTTP, BGP, etc.)