Period
to 22 January 2021

The following table provides summary statistics for permanent job vacancies with a requirement for Kamailio skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Kamailio over the 6 months to 22 January 2021 with a comparison to the same period in the previous 2 years.

Kamailio (formerly OpenSER)
UK
6 months to
22 Jan 2021
Same period 2020 Same period 2019
Rank 743 1018 -
Rank change year-on-year +275 - +1145
Permanent jobs citing Kamailio 20 8 0
As % of all permanent jobs advertised in the UK 0.031% 0.006% -
As % of the System Software category 0.17% 0.037% -
Number of salaries quoted 57 12 0
Median annual salary £57,500 £62,500 -
Median salary % change year-on-year -8.00% - -
UK excluding London median annual salary £57,500 £60,000 -
% change year-on-year -4.17% - -

Kamailio is in the System Software category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies with a requirement for system software skills.

All System Software Skills
UK
Permanent vacancies with a requirement for system software skills 11,762 21,515 23,558
As % of all permanent IT jobs advertised in the UK 18.37% 17.06% 15.51%
Number of salaries quoted 9,831 17,780 19,401
Median annual salary £55,000 £50,000 £50,000
Median salary % change year-on-year +10.00% - +11.11%
10th Percentile £29,750 £25,500 £25,500
90th Percentile £87,500 £85,000 £82,500
UK excluding London median annual salary £47,500 £42,500 £42,500
% change year-on-year +11.76% - +6.25%

Kamailio
Job Vacancy Trend

Job postings citing Kamailio as a proportion of all IT jobs advertised.

Job vacancy trend for Kamailio in the UK

Kamailio
Salary Trend

3-month moving average salary quoted in jobs citing Kamailio.

Salary trend for Kamailio in the UK

Kamailio
Salary Histogram

Salary distribution for jobs citing Kamailio over the 6 months to 22 January 2021.

Salary histogram for Kamailio in the UK

Kamailio
Top 11 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Kamailio within the UK over the 6 months to 22 January 2021. 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 +266 20 £57,500 -4.17% 1
UK excluding London +211 14 £57,500 -4.17%
South East +165 13 £57,500 -4.17%
Midlands +92 13 £57,500 -8.00%
West Midlands - 13 £57,500 -
London - 6 £57,500 - 1
North of England - 4 £52,500 -
Work from Home -59 3 £52,500 -16.00%
East of England - 3 £52,500 -
Yorkshire - 3 £52,500 -
North East - 1 - -

For the 6 months to 22 January 2021, IT jobs citing Kamailio also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads with a requirement for Kamailio.

1 19 (95.00%) Asterisk PBX
2 18 (90.00%) Open Source
2 18 (90.00%) VoIP
2 18 (90.00%) WebRTC
3 16 (80.00%) Linux
4 15 (75.00%) FreeSWITCH
5 10 (50.00%) SaaS
6 7 (35.00%) RTP
7 5 (25.00%) Debian
7 5 (25.00%) C
7 5 (25.00%) OpenSIPS
8 4 (20.00%) AWS
8 4 (20.00%) Test Automation
8 4 (20.00%) CentOS
8 4 (20.00%) Red Hat Enterprise Linux
8 4 (20.00%) Agile Software Development
8 4 (20.00%) Software Engineering
8 4 (20.00%) Media Streaming
8 4 (20.00%) Lua
8 4 (20.00%) C++
8 4 (20.00%) HTML
8 4 (20.00%) JavaScript
8 4 (20.00%) CSS
8 4 (20.00%) Python
8 4 (20.00%) Functional Testing
8 4 (20.00%) Secure Coding
9 3 (15.00%) DevOps
9 3 (15.00%) STUN
10 2 (10.00%) Degree
10 2 (10.00%) High Availability

Kamailio
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 1 (5.00%) Apache
1 1 (5.00%) ejabberd
1 1 (5.00%) IIS
1 1 (5.00%) nginx
1 1 (5.00%) Tomcat
Cloud Services
1 10 (50.00%) SaaS
2 4 (20.00%) AWS
Communications & Networking
1 19 (95.00%) Asterisk PBX
2 18 (90.00%) VoIP
3 7 (35.00%) RTP
4 3 (15.00%) STUN
5 2 (10.00%) Firewall
5 2 (10.00%) Internet
5 2 (10.00%) PBX
6 1 (5.00%) BGP
6 1 (5.00%) Diameter Protocol
6 1 (5.00%) LAN
6 1 (5.00%) SNMP
6 1 (5.00%) Softswitch
6 1 (5.00%) VPN
Database & Business Intelligence
1 1 (5.00%) SQL Server
General
1 2 (10.00%) Telecoms
2 1 (5.00%) Billing
2 1 (5.00%) Games
Job Titles
1 18 (90.00%) VoIP Engineer
2 10 (50.00%) Applications Engineer
2 10 (50.00%) Design Engineer
2 10 (50.00%) Open Source Engineer
3 4 (20.00%) Software Engineer
3 4 (20.00%) Systems Engineer
4 3 (15.00%) DevOps Engineer
4 3 (15.00%) DevOps Systems Engineer
4 3 (15.00%) Unified Communications Engineer
5 1 (5.00%) Network Engineer
5 1 (5.00%) Network Systems Engineer
Libraries, Frameworks & Software Standards
1 18 (90.00%) WebRTC
2 15 (75.00%) FreeSWITCH
3 4 (20.00%) CSS
3 4 (20.00%) HTML
4 1 (5.00%) XMPP
Miscellaneous
1 4 (20.00%) Media Streaming
2 1 (5.00%) Analytical Skills
2 1 (5.00%) Data Centre
Operating Systems
1 16 (80.00%) Linux
2 5 (25.00%) Debian
3 4 (20.00%) CentOS
3 4 (20.00%) Red Hat Enterprise Linux
4 1 (5.00%) Windows
Processes & Methodologies
1 18 (90.00%) Open Source
2 4 (20.00%) Agile Software Development
2 4 (20.00%) Functional Testing
2 4 (20.00%) Secure Coding
2 4 (20.00%) Software Engineering
2 4 (20.00%) Test Automation
3 3 (15.00%) DevOps
4 2 (10.00%) High Availability
5 1 (5.00%) Architectural Design
5 1 (5.00%) Capacity Planning
5 1 (5.00%) Computer Science
5 1 (5.00%) Continuous Integration
5 1 (5.00%) Load Balancing
5 1 (5.00%) Penetration Testing
5 1 (5.00%) Risk Assessment
5 1 (5.00%) Web Development
Programming Languages
1 5 (25.00%) C
2 4 (20.00%) C++
2 4 (20.00%) JavaScript
2 4 (20.00%) Lua
2 4 (20.00%) Python
3 1 (5.00%) Assembly Language
3 1 (5.00%) Bash Shell
3 1 (5.00%) Perl
3 1 (5.00%) PHP
Qualifications
1 2 (10.00%) Degree
2 1 (5.00%) Computer Science Degree
System Software
1 5 (25.00%) OpenSIPS
2 1 (5.00%) iptables
2 1 (5.00%) KVM
2 1 (5.00%) Postfix
2 1 (5.00%) QEMU
Systems Management
1 1 (5.00%) Ansible
1 1 (5.00%) Galera Cluster
1 1 (5.00%) HAProxy
1 1 (5.00%) Puppet
1 1 (5.00%) ZABBIX
Vendors
1 1 (5.00%) Cisco
1 1 (5.00%) GENBAND
1 1 (5.00%) HP
1 1 (5.00%) Juniper
1 1 (5.00%) Microsoft
1 1 (5.00%) Mitel
1 1 (5.00%) Nortel
1 1 (5.00%) Percona
1 1 (5.00%) SonicWALL
1 1 (5.00%) Sonus
1 1 (5.00%) Yealink