The following table provides summary statistics for permanent job vacancies advertised in London with a requirement for OpenSIPS skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited OpenSIPS over the 3 months to 28 April 2017 with a comparison to the same period in the previous 2 years.

OpenSIPS
England / London
3 months to
28 Apr 2017
Same period 2016 Same period 2015
Rank 602 665 -
Rank change year-on-year +63 -  
Permanent jobs citing OpenSIPS 2 2 0
As % of all permanent IT jobs advertised in London 0.006% 0.005% -
As % of the System Software category 0.044% 0.039% -
Number of salaries quoted 2 2 0
Median salary £35,000 £45,000 -
Median salary % change year-on-year -22.22% -  
UK excluding London median salary £44,000 £35,500 £35,000
% change year-on-year +23.94% +1.42%  

OpenSIPS is in the system software 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 system software skills.

System Software Skills
London
Permanent job vacancies with a requirement for system software skills 4504 5137 5610
As % of all permanent IT job vacancies advertised in London 12.99% 12.13% 12.55%
Number of salaries quoted 3868 4477 4852
Median salary £52,500 £50,000 £47,500
Median salary % change year-on-year +5.00% +5.26%  
90% offered a salary of more than £30,000 £30,000 £29,000
10% offered a salary of more than £77,500 £70,000 £70,000
UK excluding London median salary £37,500 £37,500 £37,500

OpenSIPS
Job Vacancy Trend in London

The job posting trend of jobs advertised in London citing OpenSIPS as a proportion of all permanent or contract IT jobs with a match in the System Software category.

Job vacancy trend for OpenSIPS in London

OpenSIPS
Salary Trend in London

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

Salary trend for OpenSIPS in London

For the 6 months to 28 April 2017, IT jobs citing OpenSIPS 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 OpenSIPS.

1 2 (100.00%) Linux
1 2 (100.00%) LAN
1 2 (100.00%) VoIP
1 2 (100.00%) WAN
1 2 (100.00%) HTTP
1 2 (100.00%) RTCP
1 2 (100.00%) RTP
1 2 (100.00%) DNS
1 2 (100.00%) SSH
1 2 (100.00%) STUN
1 2 (100.00%) CentOS
1 2 (100.00%) CoreOS
1 2 (100.00%) Bash Shell
1 2 (100.00%) FreeSWITCH
2 1 (50.00%) Degree
2 1 (50.00%) SLA
2 1 (50.00%) Telecoms
2 1 (50.00%) TCP/IP

OpenSIPS
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:

Communications & Networking
1 2 (100.00%) DNS
1 2 (100.00%) HTTP
1 2 (100.00%) LAN
1 2 (100.00%) RTCP
1 2 (100.00%) RTP
1 2 (100.00%) SSH
1 2 (100.00%) STUN
1 2 (100.00%) VoIP
1 2 (100.00%) WAN
2 1 (50.00%) TCP/IP
General
1 1 (50.00%) Telecoms
Job Titles
1 2 (100.00%) 3rd Line Engineer
2 1 (50.00%) 3rd Line Support
2 1 (50.00%) 3rd Line Support Engineer
2 1 (50.00%) Cloud Engineer
2 1 (50.00%) LAN Engineer
2 1 (50.00%) LAN/WAN Engineer
2 1 (50.00%) Linux Engineer
2 1 (50.00%) Linux Support
2 1 (50.00%) Linux Support Engineer
2 1 (50.00%) Operations Engineer
2 1 (50.00%) Support Engineer
2 1 (50.00%) VoIP Engineer
2 1 (50.00%) VoIP Support Engineer
2 1 (50.00%) WAN Engineer
Libraries, Frameworks & Software Standards
1 2 (100.00%) FreeSWITCH
Operating Systems
1 2 (100.00%) CentOS
1 2 (100.00%) CoreOS
1 2 (100.00%) Linux
Programming Languages
1 2 (100.00%) Bash Shell
Qualifications
1 1 (50.00%) Degree
Quality Assurance & Compliance
1 1 (50.00%) SLA