Senior Network Engineer Security and Cisco

Position: Senior Network Engineer with Security and Cisco – City
Job Reference: NJ0153

Date Posted: 1 September 2026

Recruiter:
Nexus Jobs

Location:

City London Salary: 60,000 to 70,000

Sector: I.T. & Communications Job Type: Permanent

Work Hours:

Full Time Contact:
Jas Gujral Email: cv Telephone:
Apply for this job nowJob Description Senior Network Engineer with Security and Cisco – City London Our Client urgently requires a Senior Network Engineer with heavy background in Network Security on Cisco and Microsoft.

The security and support of the company’s network is paramount.

Predominately a support role (BAU) with design of scalable solutions deliverable through projects.

Encompassing numerous technologies that benefit high-availability solutions.

This role requires a responsible individual who can design and deliver secure networking solutions.

Fast thinker who can diagnose, assist others and remediate BAU support issues.

Main Aspects of the role:

-Work within Infrastructure team in supporting and delivering all aspect of BAU and support services-Design, build and implement firewall solutions from perimeter to DMZ roles-Support IPS deployment for European branches-Develop, maintain and deliver global standards to all networking devices-Remediate Penetration Test results-Ensure seamless migration of network estate to newly adopted security framework

General Skills-Experience working within mission-critical environments-Experience in operational deployments-Data centre cabling and racking of equipment

Technical Skills you need to bring to the table:

-In-depth knowledge of CISCO including firewalls, switches and routing protocols-In-depth knowledge of supporting a data-centre and branch inter-connectivity-Strong technical skills are essential-Experience of CISCO multi-layer switches and routers, including 6500s-CISCO certification, ideally CCNP-CISCO CSM-VLAN segregation-McAfee HIPS, Trend Micro-Centralised authentication service (AAA)-Safe Net Ethernet Encryptor-RADIUS / RSA-Security certification (advantageous)
You will also need to an understanding of the following technologies:

VLAN segregation. DMZ. VSS. Failover. OSPF. High availability.

CISCO. Palo Alto. Juniper. McAfee IPS. Safe Net. Tripwire.

You will ideally be coming with experience from a City based investment bank.

Salary for this role is between 60K and 70K plus banking benefits.

Please send your CV to us in Word format.