The following table provides summary statistics for permanent job vacancies advertised in London with a requirement for FreeBSD skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited FreeBSD over the 3 months to 25 June 2017 with a comparison to the same period in the previous 2 years.

FreeBSD
England / London
3 months to
25 Jun 2017
Same period 2016 Same period 2015
Rank 602 611 673
Rank change year-on-year +9 +62  
Permanent jobs citing FreeBSD 10 25 8
As % of all permanent IT jobs advertised in London 0.028% 0.063% 0.018%
As % of the Operating Systems category 0.11% 0.25% 0.066%
Number of salaries quoted 10 18 8
Median salary £55,000 £65,000 £27,500
Median salary % change year-on-year -15.38% +136.36%  
90% offered a salary of more than £45,000 £47,500 £25,000
10% offered a salary of more than £55,250 £75,000 £67,500
UK excluding London median salary £45,000 £50,000 £45,000
% change year-on-year -10.00% +11.11%  

FreeBSD is in the operating system 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 operating system skills.

Operating System Skills
London
Permanent job vacancies with a requirement for operating system skills 9434 10102 12063
As % of all permanent IT job vacancies advertised in London 25.98% 25.60% 26.95%
Number of salaries quoted 7648 8843 10413
Median salary £52,500 £52,000 £50,000
Median salary % change year-on-year +0.96% +4.00%  
90% offered a salary of more than £30,000 £28,000 £28,000
10% offered a salary of more than £80,000 £75,000 £75,000
UK excluding London median salary £37,500 £37,500 £37,500

FreeBSD
Job Vacancy Trend in London

The job posting trend of jobs advertised in London citing FreeBSD as a proportion of all permanent or contract IT jobs with a match in the Operating Systems category.

Job vacancy trend for FreeBSD in London

FreeBSD
Salary Trend in London

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

Salary trend for FreeBSD in London

FreeBSD
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing FreeBSD within the London region over the 3 months to 25 June 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Last 3 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
City of London +30 2 £48,750 -2.50%
FreeBSD
England

For the 6 months to 25 June 2017, IT jobs citing FreeBSD 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 FreeBSD.

1 11 (100.00%) Linux
2 9 (81.82%) MySQL
3 6 (54.55%) PHP
4 5 (45.45%) Apache
4 5 (45.45%) MVC
4 5 (45.45%) Agile Software Development
4 5 (45.45%) Subversion
4 5 (45.45%) Google
4 5 (45.45%) Symfony
4 5 (45.45%) Zend
4 5 (45.45%) Zend Framework
4 5 (45.45%) Google Maps API
4 5 (45.45%) Unit Testing
4 5 (45.45%) Git (software)
4 5 (45.45%) MongoDB
4 5 (45.45%) PHPUnit
4 5 (45.45%) Laravel
4 5 (45.45%) Facebook
4 5 (45.45%) Facebook Platform
4 5 (45.45%) Doctrine
4 5 (45.45%) Silex
5 4 (36.36%) Puppet
5 4 (36.36%) Unix
5 4 (36.36%) Perl
6 3 (27.27%) Java
6 3 (27.27%) C++
6 3 (27.27%) Nagios
6 3 (27.27%) Red Hat
6 3 (27.27%) Python
6 3 (27.27%) DNS

FreeBSD
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 (45.45%) Apache
1 5 (45.45%) Facebook Platform
2 2 (18.18%) IIS
Communications & Networking
1 3 (27.27%) DNS
1 3 (27.27%) MRTG
2 2 (18.18%) TCP/IP
3 1 (9.09%) Network Security
Database & Business Intelligence
1 9 (81.82%) MySQL
2 5 (45.45%) MongoDB
3 1 (9.09%) PostgreSQL
3 1 (9.09%) SQL Server
Development Applications
1 5 (45.45%) Git (software)
1 5 (45.45%) PHPUnit
1 5 (45.45%) Subversion
2 2 (18.18%) Burp Suite
2 2 (18.18%) Paros
2 2 (18.18%) WebScarab
3 1 (9.09%) AppScan
General
1 2 (18.18%) Telecoms
2 1 (9.09%) Banking
2 1 (9.09%) Japanese Language
Job Titles
1 5 (45.45%) Developer
1 5 (45.45%) PHP Developer
2 3 (27.27%) Administrator
2 3 (27.27%) Systems Administrator
3 2 (18.18%) DevOps Administrator
3 2 (18.18%) Linux Administrator
3 2 (18.18%) Linux DevOps Administrator
3 2 (18.18%) Linux Systems Administrator
3 2 (18.18%) Linux/Unix DevOps
4 1 (9.09%) Consultant
4 1 (9.09%) Information Security Engineer
4 1 (9.09%) Security Consultant
4 1 (9.09%) Security Engineer
4 1 (9.09%) Systems Engineer
4 1 (9.09%) Testing Consultant
Libraries, Frameworks & Software Standards
1 5 (45.45%) Doctrine
1 5 (45.45%) Google Maps API
1 5 (45.45%) Laravel
1 5 (45.45%) Silex
1 5 (45.45%) Symfony
1 5 (45.45%) Zend Framework
2 2 (18.18%) .NET
2 2 (18.18%) CGI
2 2 (18.18%) HTML
2 2 (18.18%) LAMP
2 2 (18.18%) XML
3 1 (9.09%) LAPP Stack
Miscellaneous
1 2 (18.18%) Computer Science
2 1 (9.09%) PKI
Operating Systems
1 11 (100.00%) Linux
2 4 (36.36%) Unix
3 3 (27.27%) Red Hat Enterprise Linux
4 2 (18.18%) HPUX
5 1 (9.09%) CentOS
5 1 (9.09%) Windows
5 1 (9.09%) Windows Server 2003
5 1 (9.09%) Windows Server 2008
5 1 (9.09%) Windows Vista
5 1 (9.09%) Windows XP
Processes & Methodologies
1 5 (45.45%) Agile Software Development
1 5 (45.45%) MVC
1 5 (45.45%) Unit Testing
2 3 (27.27%) Analytics
2 3 (27.27%) DevOps
2 3 (27.27%) Information Security
3 2 (18.18%) Computer Security
3 2 (18.18%) Penetration Testing
3 2 (18.18%) Security Testing
4 1 (9.09%) Business Continuity
4 1 (9.09%) Configuration Management
4 1 (9.09%) Cybersecurity
4 1 (9.09%) Disaster Recovery
4 1 (9.09%) High Availability
4 1 (9.09%) Risk Assessment
4 1 (9.09%) Vulnerability Scanning
Programming Languages
1 6 (54.55%) PHP
2 4 (36.36%) Perl
3 3 (27.27%) C++
3 3 (27.27%) Java
3 3 (27.27%) Python
4 2 (18.18%) C
4 2 (18.18%) C#
4 2 (18.18%) JavaScript
5 1 (9.09%) Bash Shell
5 1 (9.09%) Ruby
Qualifications
1 3 (27.27%) Degree
2 2 (18.18%) CEH
2 2 (18.18%) CISA
2 2 (18.18%) CISM
2 2 (18.18%) CISSP
2 2 (18.18%) Computer Science Degree
2 2 (18.18%) SANS
System Software
1 3 (27.27%) Postfix
2 1 (9.09%) Active Directory
2 1 (9.09%) KVM
2 1 (9.09%) oVirt
2 1 (9.09%) PowerDNS
2 1 (9.09%) VMware Infrastructure
2 1 (9.09%) Xen
Systems Management
1 4 (36.36%) Puppet
2 3 (27.27%) Munin
2 3 (27.27%) Nagios
3 2 (18.18%) Nessus
4 1 (9.09%) Ansible
4 1 (9.09%) Cobbler
4 1 (9.09%) Opscode Chef
Vendors
1 5 (45.45%) Facebook
1 5 (45.45%) Google
1 5 (45.45%) Zend
2 3 (27.27%) Red Hat
3 1 (9.09%) IBM
3 1 (9.09%) Microsoft
3 1 (9.09%) Oracle
3 1 (9.09%) VMware