The following table provides summary statistics for permanent job vacancies advertised in London 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 29 June 2017 with a comparison to the same period in the previous 2 years.

FreeSWITCH
England > London
3 months to
29 Jun 2017
Same period 2016 Same period 2015
Rank 610 640 -
Rank change year-on-year +30 -  
Permanent jobs citing FreeSWITCH 8 5 0
As % of all permanent IT jobs advertised in London 0.022% 0.013% -
As % of the Libraries, Frameworks & Software Standards category 0.054% 0.031% -
Number of salaries quoted 8 5 0
London median annual salary £60,000 £75,000 -
Median salary % change year-on-year -20.00% -  
England median annual salary £48,750 £37,500 £41,500
% change year-on-year +30.00% -9.63%  

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 London with a requirement for industry standards, technical specifications and software library and framework skills.

Software Library & Framework Skills
London
Permanent job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 14728 16141 17040
As % of all permanent IT job vacancies advertised in London 40.14% 40.41% 37.90%
Number of salaries quoted 50809 59517 61955
London median annual salary £59,000 £55,000 £55,000
Median salary % change year-on-year +7.27% -  
10th Percentile £36,250 £35,000 £33,000
90th Percentile £85,000 £80,000 £81,250
England median annual salary £47,500 £45,000 £45,000
% change year-on-year +5.55% -  

FreeSWITCH
Job Vacancy Trend in London

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

Job vacancy trend for FreeSWITCH in London

FreeSWITCH
Salary Trend in London

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

Salary trend for FreeSWITCH in London

FreeSWITCH
Salary Histogram in London

The salary distribution of IT jobs citing FreeSWITCH in London over the 3 months to 29 June 2017.

Salary histogram for FreeSWITCH in London

FreeSWITCH
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing FreeSWITCH within the London region over the 3 months to 29 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
Croydon - 3 £30,000 -
City of London - 3 £62,500 -
FreeSWITCH
England

For the 6 months to 29 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 London region with a requirement for FreeSWITCH.

1 14 (100.00%) VoIP
2 12 (85.71%) Linux
3 8 (57.14%) Open Source
3 8 (57.14%) Docker
4 7 (50.00%) DevOps
4 7 (50.00%) Python
4 7 (50.00%) Telecoms
4 7 (50.00%) Git (software)
5 6 (42.86%) Continuous Integration
5 6 (42.86%) Nagios
5 6 (42.86%) TCP/IP
6 5 (35.71%) LAN
6 5 (35.71%) WAN
6 5 (35.71%) DNS
6 5 (35.71%) SQL
6 5 (35.71%) MySQL
6 5 (35.71%) CentOS
6 5 (35.71%) HTTP
6 5 (35.71%) SSH
6 5 (35.71%) CoreOS
6 5 (35.71%) OpenSIPS
6 5 (35.71%) Asterisk PBX
6 5 (35.71%) Bash Shell
7 4 (28.57%) Puppet
7 4 (28.57%) Jenkins
7 4 (28.57%) Amazon ELB
7 4 (28.57%) Opscode Chef
7 4 (28.57%) InfluxDB
7 4 (28.57%) Salt
7 4 (28.57%) Graphite

FreeSWITCH
Co-occurring 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 4 (28.57%) Apache
1 4 (28.57%) Tomcat
Cloud Services
1 4 (28.57%) Amazon AWS
1 4 (28.57%) Amazon EC2
1 4 (28.57%) Amazon ELB
1 4 (28.57%) Amazon S3
1 4 (28.57%) Microsoft Azure
Communications & Networking
1 14 (100.00%) VoIP
2 6 (42.86%) TCP/IP
3 5 (35.71%) Asterisk PBX
3 5 (35.71%) DNS
3 5 (35.71%) HTTP
3 5 (35.71%) LAN
3 5 (35.71%) SSH
3 5 (35.71%) WAN
4 4 (28.57%) RTCP
4 4 (28.57%) RTP
4 4 (28.57%) STUN
4 4 (28.57%) Wireshark
5 3 (21.43%) 4G
5 3 (21.43%) H.323
5 3 (21.43%) SSL
6 1 (7.14%) BGP
6 1 (7.14%) IPv6
6 1 (7.14%) MPLS
6 1 (7.14%) OSPF
6 1 (7.14%) Quagga
Database & Business Intelligence
1 5 (35.71%) MySQL
2 4 (28.57%) InfluxDB
Development Applications
1 7 (50.00%) Git (software)
2 4 (28.57%) Jenkins
2 4 (28.57%) Maven
2 4 (28.57%) Subversion
3 1 (7.14%) JIRA
General
1 7 (50.00%) Telecoms
Job Titles
1 5 (35.71%) VoIP Engineer
2 4 (28.57%) DevOps Engineer
2 4 (28.57%) Operations Engineer
3 3 (21.43%) AWS DevOps
3 3 (21.43%) AWS DevOps Engineer
3 3 (21.43%) AWS Engineer
3 3 (21.43%) Azure DevOps
3 3 (21.43%) Azure DevOps Engineer
3 3 (21.43%) Azure Engineer
3 3 (21.43%) Network Engineer
3 3 (21.43%) Network Operations Engineer
4 2 (14.29%) 3rd Line Engineer
4 2 (14.29%) Administrator
4 2 (14.29%) Development Engineer
5 1 (7.14%) Cloud Engineer
5 1 (7.14%) LAN Engineer
5 1 (7.14%) LAN/WAN Engineer
5 1 (7.14%) SQL Analyst
5 1 (7.14%) VoIP Support Engineer
5 1 (7.14%) WAN Engineer
Libraries, Frameworks & Software Standards
1 4 (28.57%) LAMP
1 4 (28.57%) Sensu
Miscellaneous
1 2 (14.29%) Social Media
2 1 (7.14%) Data Centre
2 1 (7.14%) Mobile App
Operating Systems
1 12 (85.71%) Linux
2 5 (35.71%) CentOS
2 5 (35.71%) CoreOS
3 4 (28.57%) VMS
Processes & Methodologies
1 8 (57.14%) Open Source
2 7 (50.00%) DevOps
3 6 (42.86%) Continuous Integration
4 4 (28.57%) Task Automation
5 3 (21.43%) A/B Testing
6 2 (14.29%) Continuous Deployment
7 1 (7.14%) Network Design
Programming Languages
1 7 (50.00%) Python
2 5 (35.71%) Bash Shell
2 5 (35.71%) SQL
3 4 (28.57%) Erlang
3 4 (28.57%) Perl
3 4 (28.57%) Ruby
4 3 (21.43%) PHP
5 2 (14.29%) C#
5 2 (14.29%) Java
6 1 (7.14%) JavaScript
Qualifications
1 4 (28.57%) Degree
2 1 (7.14%) CCNP
2 1 (7.14%) Cisco Certification
Quality Assurance & Compliance
1 1 (7.14%) SLA
System Software
1 8 (57.14%) Docker
2 5 (35.71%) OpenSIPS
3 4 (28.57%) Virtual Machines
4 3 (21.43%) Xen
5 1 (7.14%) BIND 9
5 1 (7.14%) iptables
5 1 (7.14%) Kamailio
Systems Management
1 6 (42.86%) Nagios
2 4 (28.57%) Cacti
2 4 (28.57%) Grafana
2 4 (28.57%) Graphite
2 4 (28.57%) Munin
2 4 (28.57%) Opscode Chef
2 4 (28.57%) Puppet
2 4 (28.57%) Salt
2 4 (28.57%) Terraform
3 1 (7.14%) Kubernetes
3 1 (7.14%) Prometheus
Vendors
1 1 (7.14%) Huawei