Period
to 22 January 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 22 January 2018 with a comparison to the same period in the previous 2 years.

FreeSWITCH
UK
6 months to
22 Jan 2018
Same period 2017 Same period 2016
Rank 1145 1156 1258
Rank change year-on-year +11 +102 +44
Permanent jobs citing FreeSWITCH 22 23 24
As % of all permanent IT jobs advertised in the UK 0.013% 0.013% 0.012%
As % of the Libraries, Frameworks & Software Standards category 0.031% 0.033% 0.030%
Number of salaries quoted 16 28 23
UK median annual salary £67,500 £50,000 £40,000
Median salary % change year-on-year +35.00% +25.00% +6.67%
10th Percentile £56,250 £33,500 £30,000
90th Percentile £75,000 £55,000 £76,250
UK excluding London median annual salary £43,750 £50,000 £46,250
% change year-on-year -12.50% +8.11% +32.14%

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 70,520 68,703 79,775
As % of all permanent IT jobs advertised in the UK 40.66% 39.36% 38.24%
Number of salaries quoted 59,208 59,369 68,450
UK median annual salary £50,000 £47,500 £45,000
Median salary % change year-on-year +5.26% +5.56% -
10th Percentile £30,000 £28,750 £28,000
90th Percentile £77,500 £77,500 £75,000
UK excluding London median annual salary £42,500 £42,500 £40,000
% change year-on-year - +6.25% -

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 22 January 2018.

Salary histogram for FreeSWITCH in the UK

FreeSWITCH
Top 7 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 22 January 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
England +19 22 £67,500 +35.00%
London +1 20 £67,500 +42.11%
UK excluding London -7 2 £43,750 -12.50%
Midlands +2 1 £55,000 +10.00%
North West - 1 £32,500 -
East Midlands - 1 £55,000 -
North of England - 1 £32,500 -

For the 6 months to 22 January 2018, 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 with a requirement for FreeSWITCH.

1 21 (95.45%) Linux
1 21 (95.45%) Kamailio
2 15 (68.18%) VoIP
2 15 (68.18%) Telecoms
3 12 (54.55%) MySQL
4 11 (50.00%) Python
4 11 (50.00%) DNS
4 11 (50.00%) Cisco
4 11 (50.00%) Configuration Management
4 11 (50.00%) VMware
4 11 (50.00%) HAProxy
4 11 (50.00%) DevOps
4 11 (50.00%) LEMP Stack
4 11 (50.00%) Git (software)
4 11 (50.00%) nginx
4 11 (50.00%) Cisco ASA
4 11 (50.00%) Open Source
4 11 (50.00%) Bash Shell
4 11 (50.00%) Puppet
5 10 (45.45%) VMware ESXi
5 10 (45.45%) Confluence
5 10 (45.45%) WSGI
5 10 (45.45%) Cacti
5 10 (45.45%) Munin
5 10 (45.45%) Postfix
5 10 (45.45%) Cisco IOS
5 10 (45.45%) Django
5 10 (45.45%) Release Management
5 10 (45.45%) VMware Infrastructure
5 10 (45.45%) PHP-FPM

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 11 (50.00%) nginx
2 10 (45.45%) Confluence
2 10 (45.45%) uWSGI
3 1 (4.55%) Apache
3 1 (4.55%) Exchange Server 2010
3 1 (4.55%) IIS
3 1 (4.55%) MS Exchange
3 1 (4.55%) Tomcat
Cloud Services
1 1 (4.55%) Amazon AWS
1 1 (4.55%) IBM Cloud
1 1 (4.55%) Office 365
1 1 (4.55%) SoftLayer
Communications & Networking
1 15 (68.18%) VoIP
2 11 (50.00%) Cisco ASA
2 11 (50.00%) DNS
3 10 (45.45%) BGP
3 10 (45.45%) Cisco IOS
3 10 (45.45%) HTTP
3 10 (45.45%) SMTP
3 10 (45.45%) SNMP
3 10 (45.45%) SSL
3 10 (45.45%) VLAN
4 7 (31.82%) RTP
5 6 (27.27%) Asterisk PBX
6 5 (22.73%) ISDN
7 1 (4.55%) CTI
7 1 (4.55%) Reverse Proxy
7 1 (4.55%) RTCP
7 1 (4.55%) SAN
7 1 (4.55%) TCP/IP
Database & Business Intelligence
1 12 (54.55%) MySQL
2 10 (45.45%) MariaDB
3 1 (4.55%) Amazon DynamoDB
3 1 (4.55%) Amazon Redshift
3 1 (4.55%) Couchbase
3 1 (4.55%) MongoDB
3 1 (4.55%) NoSQL
3 1 (4.55%) Redis
3 1 (4.55%) SQL Server
3 1 (4.55%) SQL Server 2012
3 1 (4.55%) SQL Server 2014
Development Applications
1 11 (50.00%) Git (software)
2 10 (45.45%) JIRA
2 10 (45.45%) Subversion
General
1 15 (68.18%) Telecoms
2 1 (4.55%) Billing
Job Titles
1 11 (50.00%) DevOps Engineer
2 10 (45.45%) Senior DevOps
2 10 (45.45%) Senior DevOps Engineer
3 8 (36.36%) DevOps Systems Engineer
3 8 (36.36%) Linux DevOps Engineer
3 8 (36.36%) Linux Engineer
3 8 (36.36%) Linux Systems Engineer
3 8 (36.36%) Linux/Unix DevOps
3 8 (36.36%) Systems Engineer
4 7 (31.82%) Senior Linux Engineer
4 7 (31.82%) Senior Linux Systems Engineer
4 7 (31.82%) Senior Systems Engineer
5 5 (22.73%) Telephony Engineer
6 4 (18.18%) Architect
6 4 (18.18%) Network Architect
6 4 (18.18%) Voice Architect
7 2 (9.09%) Infrastructure Engineer
8 1 (4.55%) Cisco Engineer
8 1 (4.55%) Senior Infrastructure Engineer
8 1 (4.55%) Telecoms Engineer
Libraries, Frameworks & Software Standards
1 11 (50.00%) LEMP Stack
2 10 (45.45%) Django
2 10 (45.45%) PHP-FPM
2 10 (45.45%) WSGI
3 1 (4.55%) CCXML
3 1 (4.55%) Elastic Stack
3 1 (4.55%) Kafka
3 1 (4.55%) LAMP
3 1 (4.55%) Memcached
3 1 (4.55%) VXML
Miscellaneous
1 10 (45.45%) Linux Command Line
1 10 (45.45%) Private Cloud
1 10 (45.45%) Replication
1 10 (45.45%) Wiki
2 1 (4.55%) Analytical Skills
2 1 (4.55%) Clustering
2 1 (4.55%) Computer Science
2 1 (4.55%) Data Centre
2 1 (4.55%) IVR
Operating Systems
1 21 (95.45%) Linux
2 10 (45.45%) Debian
2 10 (45.45%) Ubuntu
3 1 (4.55%) Windows
3 1 (4.55%) Windows Server 2012
Processes & Methodologies
1 11 (50.00%) Configuration Management
1 11 (50.00%) DevOps
1 11 (50.00%) Open Source
2 10 (45.45%) BCP
2 10 (45.45%) Release Management
3 2 (9.09%) High Availability
4 1 (4.55%) ITIL
4 1 (4.55%) Penetration Testing
Programming Languages
1 11 (50.00%) Bash Shell
1 11 (50.00%) Python
2 10 (45.45%) Perl
2 10 (45.45%) PHP
3 5 (22.73%) C
3 5 (22.73%) C#
3 5 (22.73%) C++
4 1 (4.55%) Ruby
4 1 (4.55%) SQL
Qualifications
1 1 (4.55%) CCNA
1 1 (4.55%) CCNP
1 1 (4.55%) Cisco Certification
1 1 (4.55%) Computer Science Degree
1 1 (4.55%) Degree
1 1 (4.55%) Master's Degree
1 1 (4.55%) MCSE
1 1 (4.55%) Microsoft Certification
System Software
1 21 (95.45%) Kamailio
2 10 (45.45%) BIND 9
2 10 (45.45%) Postfix
2 10 (45.45%) VMware ESXi
2 10 (45.45%) VMware Infrastructure
3 1 (4.55%) Active Directory
3 1 (4.55%) Apache ZooKeeper
3 1 (4.55%) Hyper-V
3 1 (4.55%) OpenSIPS
Systems Management
1 11 (50.00%) HAProxy
1 11 (50.00%) Puppet
2 10 (45.45%) Cacti
2 10 (45.45%) Munin
2 10 (45.45%) Nagios
3 1 (4.55%) Ansible
3 1 (4.55%) Consul
3 1 (4.55%) Grafana
3 1 (4.55%) Graphite
3 1 (4.55%) Icinga
3 1 (4.55%) Microsoft Clustering
3 1 (4.55%) Riemann
Vendors
1 11 (50.00%) Cisco
1 11 (50.00%) VMware
2 10 (45.45%) Dell
3 4 (18.18%) BroadSoft
3 4 (18.18%) GENBAND
3 4 (18.18%) Huawei
3 4 (18.18%) Sonus
4 1 (4.55%) Microsoft
4 1 (4.55%) Rackspace