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 3 months to 26 June 2017 with a comparison to the same period in the previous 2 years.

FreeSWITCH
UK / England
3 months to
26 Jun 2017
Same period 2016 Same period 2015
Rank 857 887 947
Rank change year-on-year +30 +60  
Permanent jobs citing FreeSWITCH 10 18 6
As % of all permanent IT jobs advertised in England 0.012% 0.020% 0.006%
As % of the Libraries, Frameworks & Software Standards category 0.029% 0.050% 0.015%
Number of salaries quoted 9 16 6
Median salary £57,500 £37,500 £41,500
Median salary % change year-on-year +53.33% -9.63%  
UK excluding London median salary £40,000 £35,000 £41,500
% change year-on-year +14.28% -15.66%  

FreeSWITCH is in the industry standards, technical specifications and software library and framework skills category. The next table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in England with a requirement for industry standards, technical specifications and software library and framework skills.

Software Library & Framework Skills
England
Permanent job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 34527 35721 39925
As % of all permanent IT job vacancies advertised in England 41.06% 39.18% 38.41%
Number of salaries quoted 29194 31435 34499
Median salary £47,500 £45,250 £45,000
Median salary % change year-on-year +4.97% +0.55%  
90% offered a salary of more than £32,500 £31,500 £30,000
10% offered a salary of more than £70,000 £65,000 £70,000
UK excluding London median salary £42,500 £40,000 £40,000
% change year-on-year +6.25% -  

FreeSWITCH
Job Vacancy Trend in England

The job posting trend of jobs advertised in England citing FreeSWITCH as a proportion of all permanent or contract IT jobs with a match in the Libraries, Frameworks & Software Standards category.

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 3 months to 26 June 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 3 months to 26 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
London +28 8 £60,000 -20.00%
North West - 2 £40,000 -
FreeSWITCH
UK

For the 6 months to 26 June 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 23 (100.00%) VoIP
2 19 (82.61%) Linux
3 14 (60.87%) Telecoms
3 14 (60.87%) Open Source
4 9 (39.13%) Asterisk PBX
5 8 (34.78%) Docker
5 8 (34.78%) Git (software)
5 8 (34.78%) Python
5 8 (34.78%) TCP/IP
6 7 (30.43%) DNS
6 7 (30.43%) DevOps
7 6 (26.09%) BroadSoft
7 6 (26.09%) Continuous Integration
7 6 (26.09%) WAN
7 6 (26.09%) LAN
7 6 (26.09%) SQL
7 6 (26.09%) Nagios
8 5 (21.74%) MySQL
8 5 (21.74%) Apache
8 5 (21.74%) Windows
8 5 (21.74%) HTTP
8 5 (21.74%) SSH
8 5 (21.74%) CentOS
8 5 (21.74%) Bash Shell
8 5 (21.74%) Microsoft Azure
8 5 (21.74%) OpenSIPS
8 5 (21.74%) CoreOS
8 5 (21.74%) Windows Server
9 4 (17.39%) VoWiFi
9 4 (17.39%) Terraform

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 5 (21.74%) Apache
2 4 (17.39%) Tomcat
3 1 (4.35%) IIS
Cloud Services
1 5 (21.74%) Microsoft Azure
2 4 (17.39%) Amazon AWS
2 4 (17.39%) Amazon EC2
2 4 (17.39%) Amazon ELB
2 4 (17.39%) Amazon S3
3 1 (4.35%) Office 365
Communications & Networking
1 23 (100.00%) VoIP
2 9 (39.13%) Asterisk PBX
3 8 (34.78%) TCP/IP
4 7 (30.43%) DNS
5 6 (26.09%) LAN
5 6 (26.09%) WAN
6 5 (21.74%) HTTP
6 5 (21.74%) SSH
7 4 (17.39%) RTCP
7 4 (17.39%) RTP
7 4 (17.39%) Softswitch
7 4 (17.39%) STUN
7 4 (17.39%) VoWiFi
7 4 (17.39%) Wireshark
8 3 (13.04%) 4G
8 3 (13.04%) Firewall
8 3 (13.04%) H.323
8 3 (13.04%) SSL
8 3 (13.04%) VPN
9 2 (8.70%) VoLTE
Database & Business Intelligence
1 5 (21.74%) MySQL
2 4 (17.39%) InfluxDB
3 1 (4.35%) PostgreSQL
3 1 (4.35%) SQL Server
Development Applications
1 8 (34.78%) Git (software)
2 4 (17.39%) Jenkins
2 4 (17.39%) Maven
2 4 (17.39%) Subversion
3 1 (4.35%) JIRA
3 1 (4.35%) Team Foundation Server
3 1 (4.35%) Visual Studio Team System
General
1 14 (60.87%) Telecoms
2 1 (4.35%) Billing
Job Titles
1 12 (52.17%) VoIP Engineer
2 4 (17.39%) DevOps Engineer
2 4 (17.39%) Network Engineer
2 4 (17.39%) Operations Engineer
3 3 (13.04%) AWS DevOps
3 3 (13.04%) AWS DevOps Engineer
3 3 (13.04%) AWS Engineer
3 3 (13.04%) Azure DevOps
3 3 (13.04%) Azure DevOps Engineer
3 3 (13.04%) Azure Engineer
3 3 (13.04%) Linux Engineer
3 3 (13.04%) Network Operations Engineer
4 2 (8.70%) 3rd Line Engineer
4 2 (8.70%) Administrator
4 2 (8.70%) Design Engineer
4 2 (8.70%) Development Engineer
4 2 (8.70%) LAN Engineer
4 2 (8.70%) LAN/WAN Engineer
4 2 (8.70%) Open Source Engineer
4 2 (8.70%) WAN Engineer
Libraries, Frameworks & Software Standards
1 4 (17.39%) LAMP
1 4 (17.39%) Sensu
2 1 (4.35%) LAPP Stack
Miscellaneous
1 4 (17.39%) Analytical Skills
1 4 (17.39%) Handset
2 2 (8.70%) Social Media
3 1 (4.35%) Data Centre
3 1 (4.35%) Mobile App
3 1 (4.35%) Replication
Operating Systems
1 19 (82.61%) Linux
2 5 (21.74%) CentOS
2 5 (21.74%) CoreOS
2 5 (21.74%) Windows
2 5 (21.74%) Windows Server
3 4 (17.39%) Unix
3 4 (17.39%) VMS
Processes & Methodologies
1 14 (60.87%) Open Source
2 7 (30.43%) DevOps
3 6 (26.09%) Continuous Integration
4 4 (17.39%) Configuration Management
4 4 (17.39%) Task Automation
5 3 (13.04%) A/B Testing
6 2 (8.70%) Continuous Deployment
6 2 (8.70%) CRM
6 2 (8.70%) Presales
6 2 (8.70%) PRINCE2
6 2 (8.70%) Project Management
7 1 (4.35%) Disaster Recovery
7 1 (4.35%) High Availability
7 1 (4.35%) Load Balancing
7 1 (4.35%) Network Design
Programming Languages
1 8 (34.78%) Python
2 6 (26.09%) SQL
3 5 (21.74%) Bash Shell
4 4 (17.39%) Erlang
4 4 (17.39%) Perl
4 4 (17.39%) Ruby
5 3 (13.04%) PHP
6 2 (8.70%) C#
6 2 (8.70%) Java
7 1 (4.35%) JavaScript
7 1 (4.35%) PowerShell
7 1 (4.35%) Shell Script
Qualifications
1 4 (17.39%) Degree
2 1 (4.35%) CCNP
2 1 (4.35%) Cisco Certification
Quality Assurance & Compliance
1 1 (4.35%) SLA
System Software
1 8 (34.78%) Docker
2 5 (21.74%) OpenSIPS
3 4 (17.39%) Kamailio
3 4 (17.39%) Virtual Machines
4 3 (13.04%) Xen
5 1 (4.35%) Active Directory
5 1 (4.35%) BIND 9
5 1 (4.35%) Hyper-V
5 1 (4.35%) iptables
Systems Management
1 6 (26.09%) Nagios
2 4 (17.39%) Cacti
2 4 (17.39%) Grafana
2 4 (17.39%) Graphite
2 4 (17.39%) Munin
2 4 (17.39%) Opscode Chef
2 4 (17.39%) Puppet
2 4 (17.39%) Salt
2 4 (17.39%) Terraform
3 1 (4.35%) Kubernetes
3 1 (4.35%) Prometheus
Vendors
1 6 (26.09%) BroadSoft
2 4 (17.39%) Ericsson
2 4 (17.39%) GENBAND
2 4 (17.39%) Oracle
2 4 (17.39%) Sonus
3 2 (8.70%) Salesforce.com
4 1 (4.35%) Huawei
4 1 (4.35%) Microsoft
4 1 (4.35%) Sage