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 1 December 2025, with comparisons to the same periods in the previous two years.

6 months to
1 Dec 2025
Same period 2024 Same period 2023
Rank 86 82 66
Rank change year-on-year -4 -16 +50
Permanent jobs citing Firewall 431 635 785
As % of all permanent jobs in London 3.31% 3.70% 4.24%
As % of the Communications & Networking category 28.34% 30.07% 33.42%
Number of salaries quoted 316 425 680
10th Percentile £32,000 £37,700 £37,950
25th Percentile £42,491 £52,500 £51,250
Median annual salary (50th Percentile) £65,000 £70,000 £65,000
Median % change year-on-year -7.14% +7.69% +1.56%
75th Percentile £87,500 £85,000 £85,000
90th Percentile £97,750 £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 1,521 2,112 2,349
As % of all permanent jobs advertised in London 11.67% 12.31% 12.68%
Number of salaries quoted 859 1,195 1,921
10th Percentile £28,697 £36,250 £33,750
25th Percentile £36,750 £48,320 £46,250
Median annual salary (50th Percentile) £60,000 £66,000 £65,000
Median % change year-on-year -9.09% +1.54% +4.00%
75th Percentile £85,000 £82,750 £82,500
90th Percentile £106,250 £100,000 £100,000
England median annual salary £38,750 £54,000 £51,500
% change year-on-year -28.24% +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 1 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 1 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 -16 66 £75,000 - 31
East London +1 22 £34,500 -37.27% 5
West London +13 15 £49,500 -26.12% 6
South London +28 7 £46,000 -24.37% 6
North London +8 5 £75,000 +100.00% 1
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 (9.98%) Microsoft Exchange
2 34 (7.89%) SharePoint
3 3 (0.70%) Confluence
3 3 (0.70%) Moodle
3 3 (0.70%) nginx
4 2 (0.46%) Apache
4 2 (0.46%) Apache Airflow
5 1 (0.23%) IIS
5 1 (0.23%) Skype for Business
Applications
1 14 (3.25%) MS Visio
2 13 (3.02%) Microsoft Office
3 2 (0.46%) Microsoft Excel
3 2 (0.46%) Microsoft Project
4 1 (0.23%) Adobe Creative Suite
4 1 (0.23%) AutoCAD
4 1 (0.23%) Microsoft PowerPoint
4 1 (0.23%) Revit
Business Applications
1 2 (0.46%) Fidessa
2 1 (0.23%) SAP S/4HANA
Cloud Services
1 225 (52.20%) Azure
2 117 (27.15%) Microsoft 365
3 87 (20.19%) AWS
4 63 (14.62%) Entra ID
5 33 (7.66%) SaaS
6 26 (6.03%) IaaS
7 20 (4.64%) GCP
8 19 (4.41%) PaaS
9 16 (3.71%) GitHub
10 15 (3.48%) Azure Monitor
11 13 (3.02%) Azure Sentinel
12 12 (2.78%) Power Platform
13 11 (2.55%) Google Workspace
14 10 (2.32%) Azure DevOps
15 9 (2.09%) Azure ExpressRoute
15 9 (2.09%) Azure Logic Apps
15 9 (2.09%) Cloud Computing
16 8 (1.86%) Microsoft Purview
16 8 (1.86%) Mimecast
16 8 (1.86%) Power Automate
Communications & Networking
1 134 (31.09%) VPN
2 113 (26.22%) LAN
2 113 (26.22%) WAN
3 91 (21.11%) Network Security
4 68 (15.78%) Wi-Fi
5 62 (14.39%) Wireless
6 61 (14.15%) TCP/IP
7 58 (13.46%) VLAN
8 56 (12.99%) DNS
9 52 (12.06%) BGP
10 50 (11.60%) OSPF
11 48 (11.14%) SD-WAN
12 46 (10.67%) DHCP
13 31 (7.19%) VoIP
14 30 (6.96%) Intrusion Detection
15 22 (5.10%) Cisco Wireless
16 20 (4.64%) Cisco ASA
16 20 (4.64%) Wireshark
17 18 (4.18%) WLAN
18 17 (3.94%) EIGRP
Database & Business Intelligence
1 18 (4.18%) SQL Server
2 11 (2.55%) Power BI
3 7 (1.62%) MySQL
4 6 (1.39%) NoSQL
4 6 (1.39%) Relational Database
5 3 (0.70%) Azure SQL Database
5 3 (0.70%) InfluxDB
6 2 (0.46%) Data Lake
6 2 (0.46%) Metadata
6 2 (0.46%) MongoDB
6 2 (0.46%) PostgreSQL
7 1 (0.23%) Oracle Reports
Development Applications
1 11 (2.55%) Git
2 4 (0.93%) TeamCity
3 3 (0.70%) GitLab
3 3 (0.70%) JIRA
4 2 (0.46%) Jaeger
4 2 (0.46%) Jenkins
4 2 (0.46%) MLflow
4 2 (0.46%) Sonatype Nexus
5 1 (0.23%) Burp Suite
5 1 (0.23%) Chocolatey
5 1 (0.23%) SonarQube
General
1 135 (31.32%) Social Skills
2 117 (27.15%) Finance
3 39 (9.05%) Analytical Skills
4 29 (6.73%) Banking
5 25 (5.80%) Telecoms
6 20 (4.64%) Documentation Skills
7 17 (3.94%) Law
8 13 (3.02%) Financial Institution
9 12 (2.78%) Inclusion and Diversity
10 10 (2.32%) Marketing
11 9 (2.09%) Legal
12 7 (1.62%) Manufacturing
12 7 (1.62%) Retail
13 6 (1.39%) Japanese Language
13 6 (1.39%) Organisational Skills
14 5 (1.16%) Public Sector
15 4 (0.93%) Advertising
15 4 (0.93%) Back Office
15 4 (0.93%) Billing
15 4 (0.93%) Influencing Skills
Job Titles
1 101 (23.43%) Network Engineer
2 69 (16.01%) Senior
3 65 (15.08%) Analyst
4 60 (13.92%) Infrastructure Engineer
5 51 (11.83%) Support Engineer
6 45 (10.44%) IT Support
7 33 (7.66%) Support Analyst
8 32 (7.42%) IT Engineer
9 30 (6.96%) Security Engineer
10 25 (5.80%) IT Analyst
11 24 (5.57%) Lead
12 23 (5.34%) Security Analyst
12 23 (5.34%) Senior Network Engineer
13 22 (5.10%) Cisco Engineer
14 21 (4.87%) Azure Engineer
15 20 (4.64%) Cloud Engineer
15 20 (4.64%) IT Support Engineer
16 17 (3.94%) Network Support
16 17 (3.94%) Senior Infrastructure Engineer
17 16 (3.71%) IT Support Analyst
Libraries, Frameworks & Software Standards
1 7 (1.62%) .NET
1 7 (1.62%) 802.1X
2 5 (1.16%) RESTful
3 4 (0.93%) YAML
4 3 (0.70%) ADO
4 3 (0.70%) Elastic Stack
4 3 (0.70%) Microsoft Graph
4 3 (0.70%) OAuth
4 3 (0.70%) SAML
5 2 (0.46%) AWS SAM
5 2 (0.46%) FastAPI
5 2 (0.46%) FIX Protocol
5 2 (0.46%) Kafka
5 2 (0.46%) Keycloak
5 2 (0.46%) LDAP
5 2 (0.46%) REST
5 2 (0.46%) WebRTC
6 1 (0.23%) EDI
6 1 (0.23%) Oracle Fusion
6 1 (0.23%) WSH
Miscellaneous
1 59 (13.69%) Data Centre
2 37 (8.58%) Management Information System
3 28 (6.50%) Hybrid Cloud
4 20 (4.64%) Cyber Threat
5 18 (4.18%) Cloud Native
5 18 (4.18%) Driving Licence
5 18 (4.18%) Onboarding
5 18 (4.18%) Self-Motivation
6 14 (3.25%) Public Cloud
7 13 (3.02%) Enterprise Software
7 13 (3.02%) Security Posture
8 11 (2.55%) PKI
9 8 (1.86%) Video Conferencing
9 8 (1.86%) Virtual Team
10 7 (1.62%) Private Cloud
11 6 (1.39%) CCTV
11 6 (1.39%) IoT
11 6 (1.39%) Legacy Applications
11 6 (1.39%) Legacy Systems
11 6 (1.39%) Security Operations Centre
Operating Systems
1 150 (34.80%) Windows
2 83 (19.26%) Linux
3 77 (17.87%) Windows Server
4 17 (3.94%) Unix
4 17 (3.94%) VMS
5 16 (3.71%) Windows 10
6 15 (3.48%) Windows Server 2019
7 14 (3.25%) Mac OS
8 12 (2.78%) Red Hat Enterprise Linux
9 11 (2.55%) Ubuntu
10 10 (2.32%) Windows Server 2016
11 8 (1.86%) CentOS
12 4 (0.93%) Mac OS X
13 3 (0.70%) Android
14 2 (0.46%) Apple iOS
14 2 (0.46%) Debian
14 2 (0.46%) Kali Linux
14 2 (0.46%) Solaris
15 1 (0.23%) Windows Server 2012
Processes & Methodologies
1 94 (21.81%) Cybersecurity
2 93 (21.58%) Problem-Solving
3 83 (19.26%) Incident Response
4 72 (16.71%) Infrastructure Engineering
5 65 (15.08%) Infrastructure as Code
5 65 (15.08%) SIEM
6 57 (13.23%) Disaster Recovery
7 50 (11.60%) Computer Science
7 50 (11.60%) Information Security
8 49 (11.37%) ITIL
9 46 (10.67%) DevOps
9 46 (10.67%) Migration
10 42 (9.74%) Network Monitoring
11 41 (9.51%) Cloud Security
12 40 (9.28%) Load Balancing
13 39 (9.05%) Customer Service
13 39 (9.05%) Security Operations
14 35 (8.12%) Continuous Improvement
15 34 (7.89%) High Availability
16 33 (7.66%) Change Management
Programming Languages
1 91 (21.11%) Python
2 90 (20.88%) PowerShell
3 32 (7.42%) Bash
4 22 (5.10%) SQL
5 10 (2.32%) Bicep
6 7 (1.62%) Go
7 5 (1.16%) Kusto Query Language
8 4 (0.93%) Java
8 4 (0.93%) Shell Script
9 3 (0.70%) JavaScript
10 1 (0.23%) C#
10 1 (0.23%) Perl
10 1 (0.23%) R
10 1 (0.23%) VB.NET
10 1 (0.23%) VBScript
Qualifications
1 87 (20.19%) Cisco Certification
1 87 (20.19%) Degree
2 65 (15.08%) CCNP
3 46 (10.67%) CISSP
4 38 (8.82%) CCNA
5 37 (8.58%) CCIE
6 28 (6.50%) Azure Certification
7 26 (6.03%) Computer Science Degree
8 25 (5.80%) CISM
9 22 (5.10%) AWS Certification
9 22 (5.10%) Security Cleared
10 17 (3.94%) Microsoft Certification
11 15 (3.48%) Network+ Certification
11 15 (3.48%) SC Cleared
12 14 (3.25%) DBS Check
13 12 (2.78%) HND
14 11 (2.55%) CompTIA Security+
15 10 (2.32%) CCSA
15 10 (2.32%) CCSE
15 10 (2.32%) CEH
Quality Assurance & Compliance
1 64 (14.85%) ISO/IEC 27001
2 47 (10.90%) NIST
3 42 (9.74%) GDPR
4 21 (4.87%) Cyber Essentials
5 11 (2.55%) PCI DSS
6 9 (2.09%) SOC 2
7 6 (1.39%) Cyber Essentials PLUS
7 6 (1.39%) PMO
8 5 (1.16%) QA
9 4 (0.93%) GRC
9 4 (0.93%) SLA
10 3 (0.70%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
10 3 (0.70%) ITGC
11 2 (0.46%) Accessibility
11 2 (0.46%) Basel III
11 2 (0.46%) MiFID
11 2 (0.46%) Sarbanes-Oxley
12 1 (0.23%) HIPAA
12 1 (0.23%) NIST 800
System Software
1 130 (30.16%) Active Directory
2 62 (14.39%) VMware Infrastructure
3 26 (6.03%) Hyper-V
4 17 (3.94%) vSphere
5 15 (3.48%) Virtual Machines
6 12 (2.78%) Firmware
7 11 (2.55%) Docker
8 10 (2.32%) Virtual Desktop
9 9 (2.09%) NFS
10 8 (1.86%) VMware ESXi
11 6 (1.39%) ProxySG
12 5 (1.16%) KVM
12 5 (1.16%) XenApp
12 5 (1.16%) XenDesktop
13 4 (0.93%) pfSense
14 3 (0.70%) EMC RecoverPoint
14 3 (0.70%) Virtual Servers
14 3 (0.70%) VMware NSX
15 2 (0.46%) Squid
16 1 (0.23%) VMware Server
Systems Management
1 67 (15.55%) Terraform
2 52 (12.06%) Ansible
3 49 (11.37%) Microsoft Intune
4 36 (8.35%) Kubernetes
5 23 (5.34%) FortiGate
5 23 (5.34%) SCCM
6 16 (3.71%) Autotask
7 15 (3.48%) Grafana
8 12 (2.78%) Single Sign-On
9 11 (2.55%) Prometheus
10 8 (1.86%) CASB
10 8 (1.86%) CSIRT
10 8 (1.86%) Nessus
11 6 (1.39%) QRadar
12 5 (1.16%) Computer Emergency Response Teams
12 5 (1.16%) SCOM
13 4 (0.93%) Argo
13 4 (0.93%) Cilium
13 4 (0.93%) vCenter Server
14 3 (0.70%) VxRail
Vendors
1 152 (35.27%) Cisco
2 151 (35.03%) Microsoft
3 89 (20.65%) VMware
4 70 (16.24%) Palo Alto
5 49 (11.37%) CheckPoint
6 47 (10.90%) Fortinet
7 41 (9.51%) Meraki
7 41 (9.51%) SolarWinds
8 33 (7.66%) Juniper
9 27 (6.26%) F5
10 16 (3.71%) Arista
11 15 (3.48%) Google
11 15 (3.48%) Splunk
11 15 (3.48%) Zscaler
12 14 (3.25%) Red Hat
13 13 (3.02%) Citrix
14 10 (2.32%) Aruba
15 9 (2.09%) Commvault
15 9 (2.09%) CrowdStrike
16 8 (1.86%) Pure Storage