The table below looks at the statistics for FreeSWITCH skills in IT jobs advertised for the London region. Included is a guide to the salaries offered in IT jobs that have cited FreeSWITCH over the 3 months to 25 July 2016 with a comparison to the same period over the previous 2 years.

3 months to
25 Jul 2016
Same period 2015 Same period 2014
FreeSWITCH
Rank 618 658 693
Rank change year-on-year
+40 +35
Permanent jobs citing FreeSWITCH 4 1 4
As % of all permanent IT jobs located in London 0.010% 0.002% 0.008%
As % of the Libraries, Frameworks & Software Standards category 0.025% 0.006% 0.021%
Number of salaries quoted 4 1 4
Median salary £75,000 £40,000 £50,000
Median salary % change year-on-year
+87.50% -20.00%
UK excluding London median salary £35,000 £41,500 £37,500
% change year-on-year
-15.66% +10.66%
FreeSWITCH
England

The following table is for comparison with the above and provides statistics for the entire Libraries, Frameworks & Software Standards category in permanent jobs advertised in the London region.

Libraries, Frameworks & Software Standards Category
London
Permanent IT job ads with a match in the
Libraries, Frameworks & Software Standards category
15915 16610 18855
As % of all permanent IT jobs located in London 40.28% 37.35% 39.24%
Number of salaries quoted 14041 14275 16229
Median salary £56,000 £55,000 £52,500
Median salary % change year-on-year
+1.81% +4.76%
90% offered a salary of more than £37,500 £35,000 £35,000
10% offered a salary of more than £80,000 £72,500 £75,000
UK excluding London median salary £40,000 £40,000 £40,000

FreeSWITCH
Jobs Demand Trend in London

The demand trend of job ads across the London region citing FreeSWITCH as a proportion of all IT jobs with a match in the Libraries, Frameworks & Software Standards category.

FreeSWITCH Jobs Demand Trend in London

FreeSWITCH
Salary Trend in London

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

FreeSWITCH Salary Trend in London

FreeSWITCH
Salary Histogram in London

This chart provides a salary histogram for IT jobs citing FreeSWITCH across the London region over the 3 months to 25 July 2016.

FreeSWITCH Salary Histogram in London

FreeSWITCH
Top 30 Related IT Skills in London

For the 6 months to 25 July 2016, IT jobs citing FreeSWITCH 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 FreeSWITCH.

1 12 (100.00%) Linux
2 10 (83.33%) VoIP
2 10 (83.33%) MySQL
3 9 (75.00%) Telecoms
3 9 (75.00%) Bash Shell
4 8 (66.67%) PHP
4 8 (66.67%) Nagios
4 8 (66.67%) RTP
5 7 (58.33%) DNS
5 7 (58.33%) TCP/IP
5 7 (58.33%) SSL
5 7 (58.33%) Apache
5 7 (58.33%) LAMP
6 6 (50.00%) Configuration Management
6 6 (50.00%) Python
6 6 (50.00%) C
6 6 (50.00%) C++
6 6 (50.00%) DevOps
7 5 (41.67%) LEMP Stack
7 5 (41.67%) OpenSIPS
7 5 (41.67%) CentOS
7 5 (41.67%) nginx
7 5 (41.67%) LDAP
7 5 (41.67%) WAN
7 5 (41.67%) Xen
8 4 (33.33%) Subversion
8 4 (33.33%) HTTP
8 4 (33.33%) Puppet
8 4 (33.33%) VMware ESXi
8 4 (33.33%) Data Centre

FreeSWITCH
Top Related 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 7 (58.33%) Apache
2 5 (41.67%) nginx
3 3 (25.00%) Confluence
4 2 (16.67%) Tomcat
4 2 (16.67%) uWSGI
Cloud Services
1 1 (8.33%) Google Apps
Communications & Networking
1 10 (83.33%) VoIP
2 8 (66.67%) RTP
3 7 (58.33%) DNS
3 7 (58.33%) SSL
3 7 (58.33%) TCP/IP
4 5 (41.67%) LDAP
4 5 (41.67%) WAN
5 4 (33.33%) HTTP
6 3 (25.00%) Firewall
6 3 (25.00%) SNMP
6 3 (25.00%) SS7
6 3 (25.00%) VLAN
7 2 (16.67%) Asterisk PBX
7 2 (16.67%) BGP
7 2 (16.67%) Cisco ASA
7 2 (16.67%) Cisco IOS
7 2 (16.67%) SMTP
7 2 (16.67%) VPN
8 1 (8.33%) Internet
8 1 (8.33%) PBX
Database & Business Intelligence
1 10 (83.33%) MySQL
2 3 (25.00%) Relational Database
3 2 (16.67%) MariaDB
3 2 (16.67%) RDBMS
Development Applications
1 4 (33.33%) Subversion
2 3 (25.00%) Git (software)
2 3 (25.00%) JIRA
General
1 9 (75.00%) Telecoms
2 3 (25.00%) Finance
3 2 (16.67%) Advertising
Job Titles
1 5 (41.67%) Network Engineer
2 4 (33.33%) Linux Engineer
2 4 (33.33%) Linux Systems Engineer
2 4 (33.33%) Network Systems Engineer
2 4 (33.33%) Systems Engineer
3 3 (25.00%) DevOps Engineer
3 3 (25.00%) Linux/Unix DevOps
3 3 (25.00%) Network Manager
3 3 (25.00%) Systems Manager
4 2 (16.67%) Administrator
4 2 (16.67%) DevOps Systems Engineer
4 2 (16.67%) IP Engineer
4 2 (16.67%) IP Network Engineer
4 2 (16.67%) Linux Administrator
4 2 (16.67%) Linux DevOps Engineer
4 2 (16.67%) Linux Systems Administrator
4 2 (16.67%) Network Administrator
4 2 (16.67%) Systems Administrator
4 2 (16.67%) VoIP Engineer
5 1 (8.33%) Linux Developer
Libraries, Frameworks & Software Standards
1 7 (58.33%) LAMP
2 5 (41.67%) LEMP Stack
3 2 (16.67%) Django
3 2 (16.67%) PHP-FPM
3 2 (16.67%) RabbitMQ
3 2 (16.67%) WSGI
4 1 (8.33%) HTML
4 1 (8.33%) HTML5
4 1 (8.33%) POSIX
4 1 (8.33%) WebRTC
Miscellaneous
1 4 (33.33%) Data Centre
2 3 (25.00%) Analytical Skills
3 2 (16.67%) Fintech
3 2 (16.67%) Public Cloud
3 2 (16.67%) Replication
3 2 (16.67%) Wiki
Operating Systems
1 12 (100.00%) Linux
2 5 (41.67%) CentOS
3 3 (25.00%) Debian
3 3 (25.00%) Ubuntu
4 1 (8.33%) Embedded Linux
4 1 (8.33%) uClinux
4 1 (8.33%) Windows
Processes & Methodologies
1 6 (50.00%) Configuration Management
1 6 (50.00%) DevOps
2 2 (16.67%) BCP
2 2 (16.67%) Load Balancing
2 2 (16.67%) Network Management
2 2 (16.67%) Network Monitoring
2 2 (16.67%) Release Management
3 1 (8.33%) Open Source
3 1 (8.33%) Service Management
Programming Languages
1 9 (75.00%) Bash Shell
2 8 (66.67%) PHP
3 6 (50.00%) C
3 6 (50.00%) C++
3 6 (50.00%) Python
4 2 (16.67%) Perl
5 1 (8.33%) JavaScript
5 1 (8.33%) SQL
Qualifications
1 3 (25.00%) RHCSA
System Software
1 5 (41.67%) OpenSIPS
1 5 (41.67%) Xen
2 4 (33.33%) VMware ESXi
3 3 (25.00%) Kamailio
4 2 (16.67%) BIND 9
4 2 (16.67%) Postfix
4 2 (16.67%) VMware Infrastructure
Systems Management
1 8 (66.67%) Nagios
2 4 (33.33%) Puppet
3 2 (16.67%) Ansible
3 2 (16.67%) Cacti
3 2 (16.67%) HAProxy
3 2 (16.67%) Kibana
3 2 (16.67%) Munin
3 2 (16.67%) Opscode Chef
3 2 (16.67%) Red Hat Spacewalk
3 2 (16.67%) Salt
4 1 (8.33%) Check_MK
Vendors
1 3 (25.00%) Cisco
2 2 (16.67%) Dell
2 2 (16.67%) VMware
3 1 (8.33%) Google
3 1 (8.33%) PagerDuty