Period
to 25 November 2017

The following table provides summary statistics for permanent job vacancies advertised in England 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 25 November 2017 with a comparison to the same period in the previous 2 years.

FreeSWITCH
UK > England
6 months to
25 Nov 2017
Same period 2016 Same period 2015
Rank 1146 1159 1253
Rank change year-on-year +13 +94 +35
Permanent jobs citing FreeSWITCH 14 19 18
As % of all permanent IT jobs advertised in England 0.008% 0.011% 0.009%
As % of the Libraries, Frameworks & Software Standards category 0.021% 0.027% 0.023%
Number of salaries quoted 12 20 15
England median annual salary £67,500 £46,250 £45,000
Median salary % change year-on-year +45.95% +2.78% +28.57%
10th Percentile £39,750 £32,250 £30,000
90th Percentile £68,750 £55,250 £76,250
UK median annual salary £67,500 £46,250 £45,000
% change year-on-year +45.95% +2.78% +28.57%

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 advertised in England with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
England
Permanent vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 67493 69884 78468
As % of all permanent IT jobs advertised in England 40.22% 39.13% 38.20%
Number of salaries quoted 56549 61132 67722
England 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 £27,500
90th Percentile £77,500 £77,500 £75,000
UK median annual salary £50,000 £47,500 £45,000
% change year-on-year +5.26% +5.56% +1.12%

FreeSWITCH
Job Vacancy Trend in England

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

Job vacancy trend for FreeSWITCH in England

FreeSWITCH
Salary Trend in England

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

Salary trend for FreeSWITCH in England

FreeSWITCH
Salary Histogram in England

The salary distribution of IT jobs citing FreeSWITCH in England over the 6 months to 25 November 2017.

Salary histogram for FreeSWITCH in England

FreeSWITCH
Job Locations in England

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing FreeSWITCH within the England region over the 6 months to 25 November 2017. 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
London +6 11 £67,500 +42.11% 2
North West - 3 £36,250 -
North of England - 3 £36,250 -
FreeSWITCH
UK

For the 6 months to 25 November 2017, 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 England region with a requirement for FreeSWITCH.

1 13 (92.86%) Linux
2 11 (78.57%) Python
2 11 (78.57%) VoIP
2 11 (78.57%) Telecoms
2 11 (78.57%) Git (software)
3 10 (71.43%) Puppet
3 10 (71.43%) Kamailio
3 10 (71.43%) DevOps
3 10 (71.43%) MySQL
4 9 (64.29%) Perl
4 9 (64.29%) Nagios
4 9 (64.29%) Configuration Management
4 9 (64.29%) Subversion
4 9 (64.29%) Cacti
4 9 (64.29%) Munin
5 8 (57.14%) Cisco ASA
5 8 (57.14%) nginx
5 8 (57.14%) Bash Shell
5 8 (57.14%) HAProxy
5 8 (57.14%) Replication
5 8 (57.14%) VMware
5 8 (57.14%) Cisco
5 8 (57.14%) DNS
5 8 (57.14%) LEMP Stack
6 7 (50.00%) BIND 9
6 7 (50.00%) Linux Command Line
6 7 (50.00%) SSL
6 7 (50.00%) SMTP
6 7 (50.00%) HTTP
6 7 (50.00%) SNMP

FreeSWITCH
Co-occurring IT Skills in England 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 8 (57.14%) nginx
2 7 (50.00%) Confluence
2 7 (50.00%) uWSGI
3 4 (28.57%) Apache
4 3 (21.43%) Tomcat
5 2 (14.29%) IIS
6 1 (7.14%) Exchange Server 2010
6 1 (7.14%) MS Exchange
Cloud Services
1 3 (21.43%) Amazon AWS
1 3 (21.43%) Microsoft Azure
2 2 (14.29%) Amazon EC2
2 2 (14.29%) Amazon ELB
2 2 (14.29%) Amazon S3
2 2 (14.29%) Office 365
3 1 (7.14%) IBM Cloud
3 1 (7.14%) SoftLayer
Communications & Networking
1 11 (78.57%) VoIP
2 8 (57.14%) Cisco ASA
2 8 (57.14%) DNS
3 7 (50.00%) BGP
3 7 (50.00%) Cisco IOS
3 7 (50.00%) HTTP
3 7 (50.00%) SMTP
3 7 (50.00%) SNMP
3 7 (50.00%) SSL
3 7 (50.00%) VLAN
4 2 (14.29%) Asterisk PBX
4 2 (14.29%) RTP
4 2 (14.29%) Wireshark
5 1 (7.14%) Firewall
5 1 (7.14%) ISDN
5 1 (7.14%) Reverse Proxy
5 1 (7.14%) SAN
5 1 (7.14%) Softswitch
5 1 (7.14%) TCP/IP
5 1 (7.14%) VoWiFi
Database & Business Intelligence
1 10 (71.43%) MySQL
2 7 (50.00%) MariaDB
3 2 (14.29%) InfluxDB
3 2 (14.29%) SQL Server
4 1 (7.14%) Amazon DynamoDB
4 1 (7.14%) Amazon Redshift
4 1 (7.14%) Couchbase
4 1 (7.14%) MongoDB
4 1 (7.14%) NoSQL
4 1 (7.14%) PostgreSQL
4 1 (7.14%) Redis
4 1 (7.14%) SQL Server 2012
4 1 (7.14%) SQL Server 2014
Development Applications
1 11 (78.57%) Git (software)
2 9 (64.29%) Subversion
3 7 (50.00%) JIRA
4 2 (14.29%) Jenkins
4 2 (14.29%) Maven
5 1 (7.14%) Team Foundation Server
5 1 (7.14%) Visual Studio Team System
General
1 11 (78.57%) Telecoms
2 1 (7.14%) Billing
Job Titles
1 10 (71.43%) DevOps Engineer
2 7 (50.00%) Senior DevOps
2 7 (50.00%) Senior DevOps Engineer
3 5 (35.71%) DevOps Systems Engineer
3 5 (35.71%) Linux DevOps Engineer
3 5 (35.71%) Linux Engineer
3 5 (35.71%) Linux Systems Engineer
3 5 (35.71%) Linux/Unix DevOps
3 5 (35.71%) Systems Engineer
4 4 (28.57%) Senior Linux Engineer
4 4 (28.57%) Senior Linux Systems Engineer
4 4 (28.57%) Senior Systems Engineer
5 3 (21.43%) Infrastructure Engineer
6 2 (14.29%) AWS DevOps
6 2 (14.29%) AWS DevOps Engineer
6 2 (14.29%) AWS Engineer
6 2 (14.29%) Azure DevOps
6 2 (14.29%) Azure DevOps Engineer
6 2 (14.29%) Azure Engineer
7 1 (7.14%) Linux Scripter
Libraries, Frameworks & Software Standards
1 8 (57.14%) LEMP Stack
2 7 (50.00%) Django
2 7 (50.00%) PHP-FPM
2 7 (50.00%) WSGI
3 3 (21.43%) LAMP
4 2 (14.29%) Sensu
5 1 (7.14%) CCXML
5 1 (7.14%) Elastic Stack
5 1 (7.14%) Kafka
5 1 (7.14%) LAPP Stack
5 1 (7.14%) Memcached
5 1 (7.14%) VXML
Miscellaneous
1 8 (57.14%) Replication
2 7 (50.00%) Linux Command Line
2 7 (50.00%) Private Cloud
2 7 (50.00%) Wiki
3 2 (14.29%) Analytical Skills
4 1 (7.14%) Clustering
4 1 (7.14%) Computer Science
4 1 (7.14%) Data Centre
4 1 (7.14%) Handset
Operating Systems
1 13 (92.86%) Linux
2 7 (50.00%) Debian
2 7 (50.00%) Ubuntu
3 3 (21.43%) Windows
4 2 (14.29%) VMS
4 2 (14.29%) Windows Server
5 1 (7.14%) Unix
5 1 (7.14%) Windows Server 2012
Processes & Methodologies
1 10 (71.43%) DevOps
2 9 (64.29%) Configuration Management
3 7 (50.00%) BCP
3 7 (50.00%) Release Management
4 5 (35.71%) Open Source
5 3 (21.43%) High Availability
6 2 (14.29%) Continuous Integration
6 2 (14.29%) Task Automation
7 1 (7.14%) Disaster Recovery
7 1 (7.14%) ITIL
7 1 (7.14%) Load Balancing
7 1 (7.14%) Penetration Testing
Programming Languages
1 11 (78.57%) Python
2 9 (64.29%) Perl
3 8 (57.14%) Bash Shell
4 7 (50.00%) PHP
5 4 (28.57%) SQL
6 3 (21.43%) Ruby
7 2 (14.29%) Erlang
8 1 (7.14%) C
8 1 (7.14%) C#
8 1 (7.14%) C++
8 1 (7.14%) PowerShell
8 1 (7.14%) Shell Script
Qualifications
1 1 (7.14%) CCNA
1 1 (7.14%) CCNP
1 1 (7.14%) Cisco Certification
1 1 (7.14%) Computer Science Degree
1 1 (7.14%) Degree
1 1 (7.14%) Master's Degree
1 1 (7.14%) MCSE
1 1 (7.14%) Microsoft Certification
System Software
1 10 (71.43%) Kamailio
2 7 (50.00%) BIND 9
2 7 (50.00%) Postfix
2 7 (50.00%) VMware ESXi
2 7 (50.00%) VMware Infrastructure
3 2 (14.29%) Active Directory
3 2 (14.29%) Docker
3 2 (14.29%) Hyper-V
3 2 (14.29%) Virtual Machines
4 1 (7.14%) Apache ZooKeeper
4 1 (7.14%) OpenSIPS
Systems Management
1 10 (71.43%) Puppet
2 9 (64.29%) Cacti
2 9 (64.29%) Munin
2 9 (64.29%) Nagios
3 8 (57.14%) HAProxy
4 3 (21.43%) Grafana
4 3 (21.43%) Graphite
5 2 (14.29%) Opscode Chef
5 2 (14.29%) Salt
5 2 (14.29%) Terraform
6 1 (7.14%) Ansible
6 1 (7.14%) Consul
6 1 (7.14%) Icinga
6 1 (7.14%) Microsoft Clustering
6 1 (7.14%) Riemann
Vendors
1 8 (57.14%) Cisco
1 8 (57.14%) VMware
2 7 (50.00%) Dell
3 2 (14.29%) Microsoft
4 1 (7.14%) BroadSoft
4 1 (7.14%) Ericsson
4 1 (7.14%) GENBAND
4 1 (7.14%) Oracle
4 1 (7.14%) Rackspace
4 1 (7.14%) Sage
4 1 (7.14%) Sonus