Period
to 20 April 2021

The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for Firewall skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Firewall over the 6 months to 20 April 2021 with a comparison to the same period in the previous 2 years.

Firewall
Central London > City of London
6 months to
20 Apr 2021
Same period 2020 Same period 2019
Rank 114 59 52
Rank change year-on-year -55 -7 +17
Permanent jobs citing Firewall 125 336 507
As % of all permanent jobs advertised in the City of London 2.55% 4.08% 4.95%
As % of the Communications & Networking category 29.41% 32.21% 38.47%
Number of salaries quoted 112 317 462
10th Percentile £42,500 £36,250 £32,500
25th Percentile £45,938 £46,250 £46,563
Median annual salary (50th Percentile) £57,500 £62,500 £60,000
Median % change year-on-year -8.00% +4.17% +4.35%
75th Percentile £78,750 £76,250 £76,250
90th Percentile £97,500 £90,000 £81,250
Central London median annual salary £59,250 £60,000 £57,500
% change year-on-year -1.25% +4.35% -

Firewall is in the Communications and Computer Networking category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in the City of London with a requirement for communications or computer networking skills.

All Communications and Computer Networking Skills
City of London
Permanent vacancies with a requirement for communications or computer networking skills 425 1,043 1,318
As % of all permanent IT jobs advertised in the City of London 8.67% 12.65% 12.87%
Number of salaries quoted 376 930 1,193
10th Percentile £41,250 £32,725 £30,000
25th Percentile £48,750 £41,750 £41,250
Median annual salary (50th Percentile) £62,500 £57,500 £60,000
Median % change year-on-year +8.70% -4.17% +9.09%
75th Percentile £80,500 £75,000 £77,500
90th Percentile £96,875 £88,750 £92,500
Central London median annual salary £60,000 £57,500 £55,000
% change year-on-year +4.35% +4.55% -

Firewall
Job Vacancy Trend in the City of London

Job postings citing Firewall as a proportion of all IT jobs advertised in the City of London.

Job vacancy trend for Firewall in the City of London

Firewall
Salary Trend in the City of London

3-month moving average salary quoted in jobs citing Firewall in the City of London.

Salary trend for Firewall in the City of London

Firewall
Salary Histogram in the City of London

Salary distribution for jobs citing Firewall in the City of London over the 6 months to 20 April 2021.

Salary histogram for Firewall in the City of London

Firewall
Job Locations in the City of London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Firewall within the City of London region over the 6 months to 20 April 2021. 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
Job
Vacancies
London Bridge +10 2 £45,000 -23.40%
Firewall
Central London

For the 6 months to 20 April 2021, IT jobs citing Firewall also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the City of London region with a requirement for Firewall.

1 59 (47.20%) Windows
2 55 (44.00%) Microsoft
3 46 (36.80%) VMware
4 44 (35.20%) Azure
5 43 (34.40%) Cisco
6 42 (33.60%) VMware Infrastructure
7 39 (31.20%) AWS
8 34 (27.20%) Linux
9 32 (25.60%) WAN
10 31 (24.80%) Active Directory
11 30 (24.00%) Windows Server
12 29 (23.20%) LAN
13 28 (22.40%) Ansible
14 27 (21.60%) Microsoft 365
15 26 (20.80%) Kalman Filter
15 26 (20.80%) Network Security
16 25 (20.00%) Python
16 25 (20.00%) VPN
17 24 (19.20%) Finance
17 24 (19.20%) Cybersecurity
17 24 (19.20%) Palo Alto
18 23 (18.40%) Hyper-V
19 22 (17.60%) Data Centre
20 21 (16.80%) Cisco Certification
21 20 (16.00%) Information Security
22 19 (15.20%) Intrusion Detection
23 18 (14.40%) Web Services
23 18 (14.40%) Terraform
23 18 (14.40%) Presales
23 18 (14.40%) Infrastructure Engineering

Firewall
Co-occurring IT Skills in the City of London by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 6 (4.80%) MS Exchange
2 4 (3.20%) IIS
2 4 (3.20%) SharePoint
3 3 (2.40%) Apache
3 3 (2.40%) IBM Notes
4 2 (1.60%) Elasticsearch
5 1 (0.80%) ejabberd
5 1 (0.80%) Exchange Server 2003
5 1 (0.80%) nginx
5 1 (0.80%) Tomcat
Applications
1 10 (8.00%) Microsoft Office
Business Applications
1 3 (2.40%) Relativity
Cloud Services
1 44 (35.20%) Azure
2 39 (31.20%) AWS
3 27 (21.60%) Microsoft 365
4 9 (7.20%) Azure Active Directory
4 9 (7.20%) GCP
4 9 (7.20%) Mimecast
5 5 (4.00%) OpenShift
5 5 (4.00%) SaaS
5 5 (4.00%) Stackdriver
6 4 (3.20%) AWS CloudFormation
6 4 (3.20%) PaaS
7 3 (2.40%) IaaS
8 2 (1.60%) Azure Sentinel
8 2 (1.60%) Cloud Computing
8 2 (1.60%) Dynamics 365
9 1 (0.80%) Azure Cosmos DB
9 1 (0.80%) Azure Key Vault
9 1 (0.80%) Google Workspace
Communications & Networking
1 32 (25.60%) WAN
2 29 (23.20%) LAN
3 26 (20.80%) Network Security
4 25 (20.00%) VPN
5 19 (15.20%) Intrusion Detection
6 17 (13.60%) DNS
6 17 (13.60%) SAN
7 16 (12.80%) DHCP
8 15 (12.00%) TCP/IP
9 14 (11.20%) BGP
10 12 (9.60%) MPLS
11 11 (8.80%) Cisco Firepower
11 11 (8.80%) Cisco IOS
12 10 (8.00%) NAS
12 10 (8.00%) OSPF
13 9 (7.20%) Cisco ASA
13 9 (7.20%) F5 BIG-IP GTM
13 9 (7.20%) SD-WAN
14 8 (6.40%) F5 BIG-IP LTM
15 7 (5.60%) Cisco ISE
Database & Business Intelligence
1 14 (11.20%) SQL Server
2 7 (5.60%) MySQL
3 3 (2.40%) SQL Server 2012
3 3 (2.40%) SQL Server 2014
4 2 (1.60%) Apache Cassandra
4 2 (1.60%) Big Data
4 2 (1.60%) Hadoop
4 2 (1.60%) MongoDB
4 2 (1.60%) NoSQL
4 2 (1.60%) PostgreSQL
4 2 (1.60%) Redis
5 1 (0.80%) Amazon RDS
5 1 (0.80%) Azure SQL Database
Development Applications
1 8 (6.40%) Git (software)
2 7 (5.60%) Bitbucket
3 5 (4.00%) Jenkins
3 5 (4.00%) JIRA
4 4 (3.20%) Sonatype Nexus
5 2 (1.60%) Atlassian Bamboo
5 2 (1.60%) Gradle
5 2 (1.60%) Maven
5 2 (1.60%) Vagrant
6 1 (0.80%) Visual Studio
General
1 24 (19.20%) Finance
2 13 (10.40%) Legal
3 7 (5.60%) Telecoms
4 5 (4.00%) Banking
5 3 (2.40%) Law
6 2 (1.60%) Public Sector
7 1 (0.80%) Games
7 1 (0.80%) Police
7 1 (0.80%) Publishing
7 1 (0.80%) Retail
Job Titles
1 22 (17.60%) Network Engineer
2 18 (14.40%) IT Engineer
3 16 (12.80%) Infrastructure Engineer
4 15 (12.00%) Security Engineer
5 13 (10.40%) Architect
5 13 (10.40%) IT Security Engineer
6 11 (8.80%) Analyst
7 10 (8.00%) DevOps Engineer
8 9 (7.20%) Security Analyst
9 8 (6.40%) Senior Infrastructure Engineer
10 7 (5.60%) Administrator
10 7 (5.60%) Network Architect
10 7 (5.60%) Senior Network Engineer
10 7 (5.60%) Systems Administrator
11 6 (4.80%) Cisco Engineer
11 6 (4.80%) Cloud Engineer
11 6 (4.80%) IT Analyst
11 6 (4.80%) Support Engineer
12 5 (4.00%) 3rd Line Engineer
12 5 (4.00%) Senior DevOps Engineer
Libraries, Frameworks & Software Standards
1 18 (14.40%) Web Services
2 10 (8.00%) JSON
2 10 (8.00%) OAuth
2 10 (8.00%) SAML
3 2 (1.60%) 802.1X
3 2 (1.60%) Elastic Stack
3 2 (1.60%) FIX Protocol
3 2 (1.60%) Kafka
3 2 (1.60%) LAMP
3 2 (1.60%) LAPP Stack
3 2 (1.60%) Node.js
3 2 (1.60%) Regular Expression
3 2 (1.60%) Ruby on Rails
3 2 (1.60%) YAML
4 1 (0.80%) XMPP
Miscellaneous
1 22 (17.60%) Data Centre
2 12 (9.60%) Management Information System
3 11 (8.80%) Public Cloud
4 8 (6.40%) Analytical Skills
5 5 (4.00%) Clustering
5 5 (4.00%) Greenfield Project
6 4 (3.20%) Replication
7 3 (2.40%) Client/Server
7 3 (2.40%) Self-Motivation
8 2 (1.60%) Data Protection Act
8 2 (1.60%) Hedge funds
8 2 (1.60%) Organisational Skills
8 2 (1.60%) Private Cloud
9 1 (0.80%) Algorithms
9 1 (0.80%) Digital Media
9 1 (0.80%) Enterprise Storage
9 1 (0.80%) Mobile App
9 1 (0.80%) PKI
9 1 (0.80%) Smartphone
9 1 (0.80%) User Experience
Operating Systems
1 59 (47.20%) Windows
2 34 (27.20%) Linux
3 30 (24.00%) Windows Server
4 13 (10.40%) Windows 10
4 13 (10.40%) Windows Server 2008
5 12 (9.60%) Mac OS
5 12 (9.60%) Ubuntu
5 12 (9.60%) Windows Server 2012
6 10 (8.00%) CentOS
7 8 (6.40%) Windows 7
8 7 (5.60%) Windows Server 2016
9 5 (4.00%) Unix
10 2 (1.60%) Red Hat Enterprise Linux
11 1 (0.80%) Android
11 1 (0.80%) Apple iOS
11 1 (0.80%) Check Point GAiA
11 1 (0.80%) Debian
11 1 (0.80%) Windows 8
11 1 (0.80%) Windows Server 2019
Processes & Methodologies
1 26 (20.80%) Kalman Filter
2 24 (19.20%) Cybersecurity
3 20 (16.00%) Information Security
4 18 (14.40%) Infrastructure Engineering
4 18 (14.40%) Presales
5 17 (13.60%) DevOps
6 14 (11.20%) Web Filtering
7 12 (9.60%) Configuration Management
7 12 (9.60%) ITIL
7 12 (9.60%) OWASP
7 12 (9.60%) Task Automation
8 11 (8.80%) Disaster Recovery
8 11 (8.80%) Email Filtering
8 11 (8.80%) Server Management
9 10 (8.00%) Change Management
9 10 (8.00%) High Availability
9 10 (8.00%) Penetration Testing
9 10 (8.00%) Problem-Solving
9 10 (8.00%) SIEM
9 10 (8.00%) SOA
Programming Languages
1 25 (20.00%) Python
2 17 (13.60%) SQL
3 15 (12.00%) PowerShell
4 9 (7.20%) Bash Shell
5 7 (5.60%) PHP
6 4 (3.20%) JavaScript
7 3 (2.40%) Java
7 3 (2.40%) Perl
7 3 (2.40%) R
7 3 (2.40%) Ruby
8 2 (1.60%) C#
9 1 (0.80%) C
9 1 (0.80%) C++
9 1 (0.80%) Go
9 1 (0.80%) Groovy
9 1 (0.80%) Scala
9 1 (0.80%) VBScript
Qualifications
1 21 (16.80%) Cisco Certification
2 15 (12.00%) CISSP
3 14 (11.20%) CCNP
4 13 (10.40%) Degree
5 9 (7.20%) CISM
6 8 (6.40%) Security Cleared
7 7 (5.60%) CCIE
7 7 (5.60%) SC Cleared
8 6 (4.80%) CCNA
8 6 (4.80%) CISA
8 6 (4.80%) ITIL Certification
9 5 (4.00%) GSEC
10 4 (3.20%) Computer Science Degree
11 3 (2.40%) ITIL Foundation Certificate
12 2 (1.60%) (ISC)2 CCSP
12 2 (1.60%) CCSP
13 1 (0.80%) CCSA
13 1 (0.80%) CCSE
13 1 (0.80%) CCVP
13 1 (0.80%) GIAC
Quality Assurance & Compliance
1 14 (11.20%) ISO/IEC 27001
2 12 (9.60%) Cyber Essentials
3 6 (4.80%) Cyber Essentials PLUS
4 2 (1.60%) GDPR
4 2 (1.60%) NIST
4 2 (1.60%) PCI DSS
System Software
1 42 (33.60%) VMware Infrastructure
2 31 (24.80%) Active Directory
3 23 (18.40%) Hyper-V
4 10 (8.00%) VMware NSX
4 10 (8.00%) vSphere
5 9 (7.20%) Docker
6 6 (4.80%) StorNext
6 6 (4.80%) Xsan
7 5 (4.00%) VMware ESXi
8 3 (2.40%) Virtual Desktop
9 2 (1.60%) Apache ZooKeeper
10 1 (0.80%) Firmware
10 1 (0.80%) iptables
10 1 (0.80%) Kamailio
10 1 (0.80%) KVM
10 1 (0.80%) Postfix
10 1 (0.80%) QEMU
10 1 (0.80%) Virtual Machines
10 1 (0.80%) XenApp
10 1 (0.80%) XenDesktop
Systems Management
1 28 (22.40%) Ansible
2 18 (14.40%) Terraform
3 13 (10.40%) Kubernetes
3 13 (10.40%) Puppet
4 11 (8.80%) Nessus
5 9 (7.20%) Opscode Chef
6 7 (5.60%) FortiGate
6 7 (5.60%) Microsoft Intune
7 6 (4.80%) Istio
8 5 (4.00%) Grafana
8 5 (4.00%) Microsoft Data Protection Manager
8 5 (4.00%) SCDPM
9 4 (3.20%) Failover Clustering
10 3 (2.40%) Cisco CUCM
10 3 (2.40%) HAProxy
10 3 (2.40%) ITRS Geneos
10 3 (2.40%) SCCM
10 3 (2.40%) SCOM
10 3 (2.40%) vCenter Server
10 3 (2.40%) ZABBIX
Vendors
1 55 (44.00%) Microsoft
2 46 (36.80%) VMware
3 43 (34.40%) Cisco
4 24 (19.20%) Palo Alto
5 18 (14.40%) SolarWinds
6 17 (13.60%) HP
7 16 (12.80%) Fortinet
8 15 (12.00%) CA
8 15 (12.00%) SonicWALL
9 12 (9.60%) CheckPoint
9 12 (9.60%) Juniper
10 10 (8.00%) F5
11 8 (6.40%) Aruba
11 8 (6.40%) Dell
11 8 (6.40%) Forcepoint
11 8 (6.40%) Supermicro
12 7 (5.60%) AlienVault
12 7 (5.60%) EMC
12 7 (5.60%) Thales
12 7 (5.60%) Thycotic