Firewall Job Trends in London

Firewall
England > London

The table below provides summary statistics and salary benchmarking for jobs advertised in London requiring Firewall skills. It covers permanent job vacancies from the 6 months leading up to 5 December 2025, with comparisons to the same periods in the previous two years.

6 months to
5 Dec 2025
Same period 2024 Same period 2023
Rank 89 80 64
Rank change year-on-year -9 -16 +50
Permanent jobs citing Firewall 430 642 778
As % of all permanent jobs in London 3.25% 3.75% 4.26%
As % of the Communications & Networking category 27.99% 30.21% 33.43%
Number of salaries quoted 314 432 670
10th Percentile £32,000 £38,000 £39,900
25th Percentile £42,625 £52,500 £51,250
Median annual salary (50th Percentile) £66,500 £70,000 £65,000
Median % change year-on-year -5.00% +7.69% +1.96%
75th Percentile £87,438 £85,063 £85,000
90th Percentile £97,850 £95,000 £100,000
England median annual salary £45,000 £52,500 £52,500
% change year-on-year -14.29% - -

All Communications and Computer Networking Skills
London

Firewall falls under the Communications and Computer Networking category. For comparison with the information above, the following table provides summary statistics for all permanent job vacancies requiring communications or computer networking skills in London.

Permanent vacancies with a requirement for communications or computer networking skills 1,536 2,125 2,327
As % of all permanent jobs advertised in London 11.60% 12.43% 12.74%
Number of salaries quoted 873 1,204 1,899
10th Percentile £28,697 £36,825 £33,750
25th Percentile £36,750 £48,750 £46,250
Median annual salary (50th Percentile) £60,000 £66,500 £65,000
Median % change year-on-year -9.77% +2.31% +4.00%
75th Percentile £85,000 £83,750 £82,500
90th Percentile £106,250 £100,000 £100,000
England median annual salary £40,000 £54,000 £51,500
% change year-on-year -25.93% +4.85% -1.90%

Firewall
Job Vacancy Trend in London

Historical trend showing the proportion of permanent IT job postings citing Firewall relative to all permanent IT jobs advertised in London.

Firewall job vacancy trend in London

Firewall
Salary Trend in London

Salary distribution trend for jobs in London citing Firewall.

Salary distribution trend for jobs in London citing Firewall

Firewall
Salary Histogram in London

Salary distribution for jobs citing Firewall in London over the 6 months to 5 December 2025.

Salary histogram for Firewall in London

Firewall
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Firewall within the London region over the 6 months to 5 December 2025. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Jobs
Central London -21 68 £75,000 - 33
East London +2 23 £35,000 -36.36% 5
West London +12 15 £49,500 -26.12% 7
South London +25 7 £46,000 -24.37% 6
North London +9 5 £75,000 +100.00% 2
Firewall
England

Firewall
Co-Occurring Skills & Capabilities in London by Category

The following tables expand on the one above by listing co-occurrences grouped by category. They cover the same employment type, locality and period, with up to 20 co-occurrences shown in each category:

Application Platforms
1 43 (10.00%) Microsoft Exchange
2 32 (7.44%) SharePoint
3 3 (0.70%) Confluence
3 3 (0.70%) Moodle
3 3 (0.70%) nginx
4 2 (0.47%) Apache
4 2 (0.47%) Apache Airflow
5 1 (0.23%) IIS
Applications
1 13 (3.02%) Microsoft Office
2 12 (2.79%) MS Visio
3 1 (0.23%) Adobe Creative Suite
3 1 (0.23%) Microsoft Excel
3 1 (0.23%) Microsoft PowerPoint
3 1 (0.23%) Microsoft Project
Business Applications
1 2 (0.47%) Fidessa
2 1 (0.23%) SAP S/4HANA
Cloud Services
1 226 (52.56%) Azure
2 120 (27.91%) Microsoft 365
3 84 (19.53%) AWS
4 63 (14.65%) Entra ID
5 33 (7.67%) SaaS
6 26 (6.05%) IaaS
7 20 (4.65%) PaaS
8 19 (4.42%) GCP
9 16 (3.72%) GitHub
10 15 (3.49%) Azure Monitor
11 12 (2.79%) Azure Sentinel
11 12 (2.79%) Power Platform
12 11 (2.56%) Azure DevOps
12 11 (2.56%) Google Workspace
13 10 (2.33%) Azure ExpressRoute
14 9 (2.09%) Azure Logic Apps
14 9 (2.09%) Cloud Computing
14 9 (2.09%) Mimecast
15 8 (1.86%) Azure Key Vault
15 8 (1.86%) Power Automate
Communications & Networking
1 139 (32.33%) VPN
2 112 (26.05%) LAN
2 112 (26.05%) WAN
3 90 (20.93%) Network Security
4 70 (16.28%) Wi-Fi
5 62 (14.42%) Wireless
6 59 (13.72%) TCP/IP
6 59 (13.72%) VLAN
7 57 (13.26%) DNS
8 51 (11.86%) BGP
9 49 (11.40%) DHCP
9 49 (11.40%) OSPF
10 47 (10.93%) SD-WAN
11 30 (6.98%) Intrusion Detection
11 30 (6.98%) VoIP
12 22 (5.12%) Cisco ASA
12 22 (5.12%) Cisco Wireless
13 20 (4.65%) Wireshark
14 19 (4.42%) WLAN
15 18 (4.19%) Cisco Nexus
Database & Business Intelligence
1 19 (4.42%) SQL Server
2 11 (2.56%) Power BI
3 7 (1.63%) MySQL
4 5 (1.16%) NoSQL
4 5 (1.16%) Relational Database
5 4 (0.93%) Azure SQL Database
6 3 (0.70%) InfluxDB
7 2 (0.47%) Data Lake
7 2 (0.47%) Metadata
7 2 (0.47%) MongoDB
7 2 (0.47%) PostgreSQL
8 1 (0.23%) Oracle Reports
Development Applications
1 11 (2.56%) Git
2 4 (0.93%) TeamCity
3 3 (0.70%) JIRA
3 3 (0.70%) Sonatype Nexus
4 2 (0.47%) Chocolatey
4 2 (0.47%) GitLab
4 2 (0.47%) Jaeger
4 2 (0.47%) Jenkins
4 2 (0.47%) MLflow
5 1 (0.23%) Burp Suite
5 1 (0.23%) SonarQube
General
1 136 (31.63%) Social Skills
2 117 (27.21%) Finance
3 40 (9.30%) Analytical Skills
4 29 (6.74%) Banking
5 25 (5.81%) Telecoms
6 19 (4.42%) Documentation Skills
7 16 (3.72%) Law
8 13 (3.02%) Financial Institution
9 10 (2.33%) Inclusion and Diversity
10 9 (2.09%) Legal
11 8 (1.86%) Marketing
12 7 (1.63%) Manufacturing
12 7 (1.63%) Organisational Skills
12 7 (1.63%) Retail
13 5 (1.16%) Japanese Language
13 5 (1.16%) Public Sector
14 4 (0.93%) Advertising
14 4 (0.93%) Back Office
14 4 (0.93%) Billing
14 4 (0.93%) Influencing Skills
Job Titles
1 103 (23.95%) Network Engineer
2 70 (16.28%) Senior
3 63 (14.65%) Analyst
4 60 (13.95%) Infrastructure Engineer
5 51 (11.86%) Support Engineer
6 45 (10.47%) IT Support
7 34 (7.91%) IT Engineer
8 32 (7.44%) Support Analyst
9 30 (6.98%) Security Engineer
10 24 (5.58%) IT Analyst
10 24 (5.58%) Security Analyst
11 23 (5.35%) Cisco Engineer
11 23 (5.35%) Senior Network Engineer
12 21 (4.88%) Azure Engineer
12 21 (4.88%) Cloud Engineer
12 21 (4.88%) IT Support Engineer
12 21 (4.88%) Lead
13 16 (3.72%) Cisco Network Engineer
13 16 (3.72%) Network Support
13 16 (3.72%) Senior Infrastructure Engineer
Libraries, Frameworks & Software Standards
1 7 (1.63%) .NET
2 6 (1.40%) 802.1X
3 5 (1.16%) RESTful
4 4 (0.93%) ADO
4 4 (0.93%) OAuth
4 4 (0.93%) SAML
4 4 (0.93%) YAML
5 3 (0.70%) Microsoft Graph
6 2 (0.47%) AWS SAM
6 2 (0.47%) Elastic Stack
6 2 (0.47%) FastAPI
6 2 (0.47%) FIX Protocol
6 2 (0.47%) Kafka
6 2 (0.47%) Keycloak
6 2 (0.47%) WebRTC
7 1 (0.23%) EDI
7 1 (0.23%) LDAP
7 1 (0.23%) Oracle Fusion
7 1 (0.23%) REST
7 1 (0.23%) WSH
Miscellaneous
1 61 (14.19%) Data Centre
2 39 (9.07%) Management Information System
3 28 (6.51%) Hybrid Cloud
4 21 (4.88%) Cyber Threat
5 19 (4.42%) Driving Licence
6 18 (4.19%) Cloud Native
6 18 (4.19%) Onboarding
7 17 (3.95%) Self-Motivation
8 13 (3.02%) Enterprise Software
8 13 (3.02%) Public Cloud
8 13 (3.02%) Security Posture
9 12 (2.79%) PKI
10 7 (1.63%) Private Cloud
10 7 (1.63%) Security Operations Centre
10 7 (1.63%) Virtual Team
11 6 (1.40%) CCTV
11 6 (1.40%) Foreign Exchange (FX)
11 6 (1.40%) Legacy Applications
11 6 (1.40%) Legacy Systems
11 6 (1.40%) Video Conferencing
Operating Systems
1 146 (33.95%) Windows
2 81 (18.84%) Linux
3 74 (17.21%) Windows Server
4 18 (4.19%) VMS
5 17 (3.95%) Windows 10
6 16 (3.72%) Unix
6 16 (3.72%) Windows Server 2019
7 15 (3.49%) Mac OS
8 12 (2.79%) Red Hat Enterprise Linux
9 11 (2.56%) Ubuntu
9 11 (2.56%) Windows Server 2016
10 8 (1.86%) CentOS
11 4 (0.93%) Mac OS X
12 3 (0.70%) Android
13 2 (0.47%) Apple iOS
13 2 (0.47%) Debian
13 2 (0.47%) Kali Linux
13 2 (0.47%) Solaris
14 1 (0.23%) Windows Server 2012
Processes & Methodologies
1 96 (22.33%) Cybersecurity
2 93 (21.63%) Problem-Solving
3 86 (20.00%) Incident Response
4 71 (16.51%) Infrastructure Engineering
5 65 (15.12%) SIEM
6 62 (14.42%) Infrastructure as Code
7 58 (13.49%) Disaster Recovery
8 51 (11.86%) Information Security
9 50 (11.63%) Computer Science
10 48 (11.16%) ITIL
11 47 (10.93%) Migration
12 44 (10.23%) DevOps
13 42 (9.77%) Cloud Security
13 42 (9.77%) Network Monitoring
14 41 (9.53%) Security Operations
15 40 (9.30%) Load Balancing
16 38 (8.84%) Customer Service
17 35 (8.14%) Continuous Improvement
18 34 (7.91%) Kalman Filter
19 33 (7.67%) High Availability
Programming Languages
1 87 (20.23%) PowerShell
1 87 (20.23%) Python
2 29 (6.74%) Bash
3 22 (5.12%) SQL
4 10 (2.33%) Bicep
5 6 (1.40%) Go
5 6 (1.40%) Kusto Query Language
6 4 (0.93%) Java
6 4 (0.93%) Shell Script
7 2 (0.47%) JavaScript
8 1 (0.23%) C#
8 1 (0.23%) Perl
8 1 (0.23%) R
8 1 (0.23%) VB.NET
8 1 (0.23%) VBScript
Qualifications
1 89 (20.70%) Cisco Certification
2 86 (20.00%) Degree
3 66 (15.35%) CCNP
4 48 (11.16%) CISSP
5 38 (8.84%) CCNA
6 37 (8.60%) CCIE
7 28 (6.51%) Azure Certification
8 26 (6.05%) CISM
8 26 (6.05%) Computer Science Degree
9 22 (5.12%) AWS Certification
10 21 (4.88%) Security Cleared
11 17 (3.95%) Microsoft Certification
12 16 (3.72%) Network+ Certification
13 14 (3.26%) DBS Check
13 14 (3.26%) SC Cleared
14 12 (2.79%) HND
15 11 (2.56%) CompTIA Security+
16 10 (2.33%) CCSA
16 10 (2.33%) CCSE
16 10 (2.33%) CEH
Quality Assurance & Compliance
1 65 (15.12%) ISO/IEC 27001
2 46 (10.70%) NIST
3 43 (10.00%) GDPR
4 22 (5.12%) Cyber Essentials
5 11 (2.56%) PCI DSS
6 10 (2.33%) SOC 2
7 7 (1.63%) Cyber Essentials PLUS
8 6 (1.40%) PMO
9 5 (1.16%) SLA
10 4 (0.93%) GRC
11 3 (0.70%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
11 3 (0.70%) ITGC
11 3 (0.70%) QA
12 2 (0.47%) Accessibility
12 2 (0.47%) Basel III
12 2 (0.47%) MiFID
12 2 (0.47%) Sarbanes-Oxley
13 1 (0.23%) HIPAA
13 1 (0.23%) NIST 800
System Software
1 128 (29.77%) Active Directory
2 61 (14.19%) VMware Infrastructure
3 26 (6.05%) Hyper-V
4 17 (3.95%) vSphere
5 16 (3.72%) Virtual Machines
6 13 (3.02%) Firmware
7 11 (2.56%) Docker
8 10 (2.33%) Virtual Desktop
9 9 (2.09%) NFS
10 8 (1.86%) VMware ESXi
11 5 (1.16%) KVM
11 5 (1.16%) ProxySG
11 5 (1.16%) XenApp
11 5 (1.16%) XenDesktop
12 4 (0.93%) pfSense
13 3 (0.70%) EMC RecoverPoint
13 3 (0.70%) VMware NSX
14 2 (0.47%) Squid
14 2 (0.47%) Virtual Servers
15 1 (0.23%) VMware Server
Systems Management
1 66 (15.35%) Terraform
2 53 (12.33%) Ansible
3 49 (11.40%) Microsoft Intune
4 35 (8.14%) Kubernetes
5 24 (5.58%) SCCM
6 23 (5.35%) FortiGate
7 16 (3.72%) Autotask
8 13 (3.02%) Grafana
9 11 (2.56%) Single Sign-On
10 10 (2.33%) Prometheus
11 8 (1.86%) CASB
11 8 (1.86%) CSIRT
11 8 (1.86%) Nessus
12 6 (1.40%) QRadar
13 5 (1.16%) Computer Emergency Response Teams
13 5 (1.16%) SCOM
14 4 (0.93%) Argo
14 4 (0.93%) Cilium
14 4 (0.93%) vCenter Server
15 3 (0.70%) Istio
Vendors
1 153 (35.58%) Cisco
1 153 (35.58%) Microsoft
2 90 (20.93%) VMware
3 70 (16.28%) Palo Alto
4 51 (11.86%) CheckPoint
5 49 (11.40%) Fortinet
6 42 (9.77%) Meraki
7 39 (9.07%) SolarWinds
8 34 (7.91%) Juniper
9 27 (6.28%) F5
10 16 (3.72%) Arista
11 15 (3.49%) Google
11 15 (3.49%) Splunk
11 15 (3.49%) Zscaler
12 14 (3.26%) Red Hat
13 13 (3.02%) Citrix
14 10 (2.33%) Aruba
15 9 (2.09%) Commvault
15 9 (2.09%) CrowdStrike
16 8 (1.86%) Pure Storage