The following table provides summary statistics for permanent job vacancies advertised in London with a requirement for Squid skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Squid over the 3 months to 27 June 2017 with a comparison to the same period in the previous 2 years.

Squid Cache
England / London
3 months to
27 Jun 2017
Same period 2016 Same period 2015
Rank 599 602 648
Rank change year-on-year +3 +46  
Permanent jobs citing Squid 3 36 21
As % of all permanent IT jobs advertised in London 0.008% 0.090% 0.047%
As % of the System Software category 0.060% 0.69% 0.43%
Number of salaries quoted 3 35 11
Median salary £62,500 £52,500 £40,000
Median salary % change year-on-year +19.04% +31.25%  
UK excluding London median salary £32,500 £46,000 £42,500
% change year-on-year -29.34% +8.23%  

Squid is in the system software skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in London with a requirement for system software skills.

System Software Skills
London
Permanent job vacancies with a requirement for system software skills 5006 5194 4877
As % of all permanent IT job vacancies advertised in London 13.64% 12.96% 11.02%
Number of salaries quoted 4283 4564 4255
Median salary £55,000 £52,500 £47,500
Median salary % change year-on-year +4.76% +10.52%  
90% offered a salary of more than £30,000 £30,000 £29,500
10% offered a salary of more than £77,500 £72,500 £75,000
UK excluding London median salary £38,000 £39,000 £37,500
% change year-on-year -2.56% +4.00%  

Squid
Job Vacancy Trend in London

The job posting trend of jobs advertised in London citing Squid as a proportion of all permanent or contract IT jobs with a match in the System Software category.

Job vacancy trend for Squid in London

Squid
Salary Trend in London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing Squid in London.

Salary trend for Squid in London

Squid
Salary Histogram in London

The salary distribution of IT jobs citing Squid in London over the 3 months to 27 June 2017.

Salary histogram for Squid in London

For the 6 months to 27 June 2017, IT jobs citing Squid also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the London region with a requirement for Squid.

1 13 (92.86%) Linux
2 11 (78.57%) Finance
2 11 (78.57%) LAMP
3 10 (71.43%) Marketing
3 10 (71.43%) DevOps
4 9 (64.29%) Digital Marketing
4 9 (64.29%) Bash Shell
4 9 (64.29%) MySQL
4 9 (64.29%) NFS
5 8 (57.14%) Business Intelligence
5 8 (57.14%) SAP
5 8 (57.14%) PHP
5 8 (57.14%) SAP Oil and Gas
5 8 (57.14%) PostgreSQL
5 8 (57.14%) Programme Management
5 8 (57.14%) Samba
5 8 (57.14%) Manufacturing
5 8 (57.14%) Electronics
5 8 (57.14%) Telecoms
5 8 (57.14%) Nagios
5 8 (57.14%) Amazon AWS
6 6 (42.86%) Docker
6 6 (42.86%) VMware
7 5 (35.71%) Oracle
7 5 (35.71%) Apache
7 5 (35.71%) Ansible
7 5 (35.71%) MariaDB
7 5 (35.71%) Amazon EC2
8 4 (28.57%) Jenkins
8 4 (28.57%) Tomcat

Squid
Co-occurring IT Skills in 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 5 (35.71%) Apache
2 4 (28.57%) Tomcat
3 3 (21.43%) GlassFish
4 2 (14.29%) Oracle HTTP Server
5 1 (7.14%) Exchange Server 2010
5 1 (7.14%) Exchange Server 2013
5 1 (7.14%) Jetty
5 1 (7.14%) MS Exchange
5 1 (7.14%) SharePoint
5 1 (7.14%) Skype for Business
Business Applications
1 8 (57.14%) SAP Oil and Gas
Cloud Services
1 8 (57.14%) Amazon AWS
2 5 (35.71%) Amazon EC2
3 3 (21.43%) Microsoft Azure
4 1 (7.14%) Loggly
Communications & Networking
1 3 (21.43%) HTTP
1 3 (21.43%) TCP/IP
2 2 (14.29%) Internet
2 2 (14.29%) VPN
3 1 (7.14%) DNS
3 1 (7.14%) Firewall
3 1 (7.14%) OpenVPN
3 1 (7.14%) Skype
3 1 (7.14%) SMTP
3 1 (7.14%) VLAN
Database & Business Intelligence
1 9 (64.29%) MySQL
2 8 (57.14%) PostgreSQL
3 5 (35.71%) MariaDB
4 1 (7.14%) Couchbase
4 1 (7.14%) MongoDB
Development Applications
1 4 (28.57%) Jenkins
2 3 (21.43%) Git (software)
2 3 (21.43%) Hudson
3 2 (14.29%) Eclipse
3 2 (14.29%) Mercurial
4 1 (7.14%) Atlassian Bamboo
4 1 (7.14%) Bitbucket
4 1 (7.14%) Maven
4 1 (7.14%) Selenium
General
1 11 (78.57%) Finance
2 10 (71.43%) Marketing
3 8 (57.14%) Electronics
3 8 (57.14%) Manufacturing
3 8 (57.14%) Telecoms
4 1 (7.14%) Financial Institution
Job Titles
1 8 (57.14%) DevOps Engineer
1 8 (57.14%) Linux DevOps Engineer
1 8 (57.14%) Linux Engineer
1 8 (57.14%) Linux/Unix DevOps
2 2 (14.29%) Applications Engineer
2 2 (14.29%) AWS DevOps
2 2 (14.29%) AWS DevOps Engineer
2 2 (14.29%) AWS Engineer
3 1 (7.14%) 2nd Line Support
3 1 (7.14%) Administrator
3 1 (7.14%) Consultant
3 1 (7.14%) DevOps Consultant
3 1 (7.14%) Java Engineer
3 1 (7.14%) Junior
3 1 (7.14%) Junior Systems Administrator
3 1 (7.14%) Systems Administrator
Libraries, Frameworks & Software Standards
1 11 (78.57%) LAMP
2 4 (28.57%) ActiveMQ
3 2 (14.29%) Middleware
4 1 (7.14%) Dropwizard
4 1 (7.14%) Java EE
4 1 (7.14%) JMX
4 1 (7.14%) RabbitMQ
4 1 (7.14%) Swagger
Miscellaneous
1 3 (21.43%) Enterprise Software
2 2 (14.29%) PKI
3 1 (7.14%) Clustering
Operating Systems
1 13 (92.86%) Linux
2 4 (28.57%) Unix
2 4 (28.57%) Windows
3 3 (21.43%) Red Hat Enterprise Linux
3 3 (21.43%) Solaris
4 1 (7.14%) CentOS
4 1 (7.14%) Debian
4 1 (7.14%) Ubuntu
4 1 (7.14%) Windows 10
4 1 (7.14%) Windows 7
4 1 (7.14%) Windows 8
Processes & Methodologies
1 10 (71.43%) DevOps
2 9 (64.29%) Digital Marketing
3 8 (57.14%) Business Intelligence
3 8 (57.14%) Programme Management
4 3 (21.43%) Problem Management
4 3 (21.43%) Release Management
4 3 (21.43%) Security Testing
5 2 (14.29%) Agile Software Development
5 2 (14.29%) Capacity Planning
5 2 (14.29%) Change Control
5 2 (14.29%) E-Commerce
5 2 (14.29%) ITIL
5 2 (14.29%) Mentoring
5 2 (14.29%) Mobile Commerce
5 2 (14.29%) Performance Management
6 1 (7.14%) Business Development
6 1 (7.14%) Continuous Delivery
6 1 (7.14%) Migration
6 1 (7.14%) SDLC
6 1 (7.14%) Software Delivery
Programming Languages
1 9 (64.29%) Bash Shell
2 8 (57.14%) PHP
3 4 (28.57%) Java
4 2 (14.29%) Objective-C
4 2 (14.29%) Perl
5 1 (7.14%) Python
5 1 (7.14%) SQL
Quality Assurance & Compliance
1 2 (14.29%) QA
1 2 (14.29%) SLA
2 1 (7.14%) PCI DSS
System Software
1 9 (64.29%) NFS
2 8 (57.14%) Samba
3 6 (42.86%) Docker
4 2 (14.29%) Postfix
5 1 (7.14%) Active Directory
5 1 (7.14%) Corosync
5 1 (7.14%) Hyper-V
5 1 (7.14%) Microsoft Virtual Server
5 1 (7.14%) Virtual Servers
5 1 (7.14%) VMware Infrastructure
5 1 (7.14%) vSphere
Systems Management
1 8 (57.14%) Nagios
2 5 (35.71%) Ansible
3 1 (7.14%) Backup Exec
3 1 (7.14%) Bacula
3 1 (7.14%) HAProxy
3 1 (7.14%) logstash
3 1 (7.14%) Opscode Chef
3 1 (7.14%) Puppet
3 1 (7.14%) Rundeck
3 1 (7.14%) ZABBIX
Vendors
1 8 (57.14%) SAP
2 6 (42.86%) VMware
3 5 (35.71%) Oracle
4 3 (21.43%) Sun
5 2 (14.29%) Red Hat
6 1 (7.14%) Cisco
6 1 (7.14%) Dell
6 1 (7.14%) EMC
6 1 (7.14%) HP
6 1 (7.14%) Microsoft
6 1 (7.14%) NetApp
6 1 (7.14%) Splunk
6 1 (7.14%) Veritas