Period
to 17 October 2018

The following table provides summary statistics for permanent job vacancies with a requirement for FreeSWITCH skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited FreeSWITCH over the 6 months to 17 October 2018 with a comparison to the same period in the previous 2 years.

FreeSWITCH
UK
6 months to
17 Oct 2018
Same period 2017 Same period 2016
Rank 1151 1173 1223
Rank change year-on-year +22 +50 +65
Permanent jobs citing FreeSWITCH 8 16 29
As % of all permanent IT jobs advertised in the UK 0.005% 0.009% 0.015%
As % of the Libraries, Frameworks & Software Standards category 0.012% 0.023% 0.039%
Number of salaries quoted 8 15 28
UK median annual salary £30,000 £60,000 £42,500
Median salary % change year-on-year -50.00% +41.18% +2.41%
10th Percentile £27,500 £28,000 £31,225
90th Percentile £57,500 £68,750 £72,250
UK excluding London median annual salary £30,000 £40,000 £35,000
% change year-on-year -25.00% +14.29% -15.66%

FreeSWITCH is in the Software Libraries and Frameworks category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
UK
Permanent vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 65,720 70,346 74,850
As % of all permanent IT jobs advertised in the UK 39.96% 40.17% 39.01%
Number of salaries quoted 54,337 58,196 64,845
UK median annual salary £50,500 £50,000 £47,500
Median salary % change year-on-year +1.00% +5.26% +5.56%
10th Percentile £31,250 £29,750 £28,750
90th Percentile £82,500 £77,500 £76,250
UK excluding London median annual salary £45,000 £42,500 £41,500
% change year-on-year +5.88% +2.41% +3.75%

FreeSWITCH
Job Vacancy Trend

Job postings citing FreeSWITCH as a percentage of all IT jobs advertised.

Job vacancy trend for FreeSWITCH in the UK

FreeSWITCH
Salary Trend

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

Salary trend for FreeSWITCH in the UK

FreeSWITCH
Salary Histogram

The salary distribution of IT jobs citing FreeSWITCH over the 6 months to 17 October 2018.

Salary histogram for FreeSWITCH in the UK

FreeSWITCH
Top 4 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing FreeSWITCH within the UK over the 6 months to 17 October 2018. 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
UK excluding London +26 8 £30,000 -25.00% 5
Scotland - 6 £30,000 -
England +38 2 £55,000 -8.33% 6
East of England - 2 £55,000 - 5

For the 6 months to 17 October 2018, IT jobs citing FreeSWITCH 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 with a requirement for FreeSWITCH.

1 8 (100.00%) Linux
2 7 (87.50%) Windows
2 7 (87.50%) PBX
2 7 (87.50%) VoIP
2 7 (87.50%) TCP/IP
2 7 (87.50%) Subversion
2 7 (87.50%) VLAN
2 7 (87.50%) Wireshark
2 7 (87.50%) VirtualBox
3 6 (75.00%) Debian
4 5 (62.50%) Firewall
4 5 (62.50%) Microsoft
4 5 (62.50%) H.323
4 5 (62.50%) Ethernet
4 5 (62.50%) Kerberos
4 5 (62.50%) QEMU
4 5 (62.50%) Asterisk PBX
4 5 (62.50%) Open Source
4 5 (62.50%) Dovecot
4 5 (62.50%) iptables
4 5 (62.50%) Software Delivery
4 5 (62.50%) 802.1X
4 5 (62.50%) Phabricator
4 5 (62.50%) Proxmox
4 5 (62.50%) Infrastructure Engineering
4 5 (62.50%) Robotics
4 5 (62.50%) Network Security
4 5 (62.50%) Security Cleared
4 5 (62.50%) Git (software)
4 5 (62.50%) Postfix

FreeSWITCH
Co-occurring IT Skills 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 1 (12.50%) Apache
1 1 (12.50%) nginx
Communications & Networking
1 7 (87.50%) PBX
1 7 (87.50%) TCP/IP
1 7 (87.50%) VLAN
1 7 (87.50%) VoIP
1 7 (87.50%) Wireshark
2 5 (62.50%) Asterisk PBX
2 5 (62.50%) Ethernet
2 5 (62.50%) Firewall
2 5 (62.50%) H.323
2 5 (62.50%) Kerberos
2 5 (62.50%) Network Security
3 2 (25.00%) DHCP
3 2 (25.00%) HTTP
3 2 (25.00%) IGMP
3 2 (25.00%) Internet
3 2 (25.00%) RTCP
3 2 (25.00%) RTP
3 2 (25.00%) SNMP
Database & Business Intelligence
1 1 (12.50%) MariaDB
1 1 (12.50%) MySQL
1 1 (12.50%) PostgreSQL
Development Applications
1 7 (87.50%) Subversion
2 5 (62.50%) Git (software)
2 5 (62.50%) Phabricator
3 2 (25.00%) GDB
3 2 (25.00%) Team Foundation Server
3 2 (25.00%) Valgrind
3 2 (25.00%) Visual Studio
4 1 (12.50%) GitLab
General
1 3 (37.50%) Telecoms
Job Titles
1 5 (62.50%) Infrastructure Engineer
1 5 (62.50%) IT Engineer
1 5 (62.50%) IT Infrastructure Engineer
2 2 (25.00%) C Developer
2 2 (25.00%) Developer
2 2 (25.00%) Software Developer
2 2 (25.00%) VoIP Developer
3 1 (12.50%) Administrator
3 1 (12.50%) Linux Administrator
3 1 (12.50%) Linux Systems Administrator
3 1 (12.50%) Systems Administrator
Libraries, Frameworks & Software Standards
1 5 (62.50%) 802.1X
1 5 (62.50%) LAMP
2 2 (25.00%) XML
Miscellaneous
1 5 (62.50%) Robotics
Operating Systems
1 8 (100.00%) Linux
2 7 (87.50%) Windows
3 6 (75.00%) Debian
4 5 (62.50%) Ubuntu
5 1 (12.50%) CentOS
Processes & Methodologies
1 5 (62.50%) Infrastructure Engineering
1 5 (62.50%) Open Source
1 5 (62.50%) Software Delivery
1 5 (62.50%) Software Engineering
2 2 (25.00%) OO
Programming Languages
1 2 (25.00%) C
1 2 (25.00%) C++
1 2 (25.00%) Perl
1 2 (25.00%) Python
Qualifications
1 5 (62.50%) Security Cleared
System Software
1 7 (87.50%) VirtualBox
2 5 (62.50%) Dovecot
2 5 (62.50%) iptables
2 5 (62.50%) Postfix
2 5 (62.50%) QEMU
2 5 (62.50%) Xen
3 2 (25.00%) Hyper-V
3 2 (25.00%) KVM
Systems Management
1 5 (62.50%) Proxmox
Vendors
1 5 (62.50%) Microsoft