Period
to 22 January 2018

The following table provides summary statistics for permanent job vacancies advertised in London 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 2018 with a comparison to the same period in the previous 2 years.

Kamailio (formerly OpenSER)
England > London
6 months to
22 Jan 2018
Same period 2017 Same period 2016
Rank 798 810 879
Rank change year-on-year +12 +69 +20
Permanent jobs citing Kamailio 20 3 11
As % of all permanent IT jobs advertised in London 0.029% 0.004% 0.013%
As % of the System Software category 0.21% 0.036% 0.11%
Number of salaries quoted 14 3 11
London median annual salary £67,500 £40,000 £45,000
Median salary % change year-on-year +68.75% -11.11% -
10th Percentile £66,250 £30,100 £40,000
90th Percentile £75,000 £42,500 £76,250
England median annual salary £40,000 £35,000 £45,000
% change year-on-year +14.29% -22.22% +12.50%

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 advertised in London with a requirement for system software skills.

All System Software Skills
London
Permanent vacancies with a requirement for system software skills 9,385 8,308 9,607
As % of all permanent IT jobs advertised in London 13.43% 11.90% 11.30%
Number of salaries quoted 8,010 7,079 8,290
London median annual salary £55,000 £50,000 £47,500
Median salary % change year-on-year +10.00% +5.26% +5.56%
10th Percentile £28,500 £27,500 £26,250
90th Percentile £85,000 £80,000 £75,000
England median annual salary £45,000 £42,500 £40,000
% change year-on-year +5.88% +6.25% -

Kamailio
Job Vacancy Trend in London

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

Job vacancy trend for Kamailio in London

Kamailio
Salary Trend in London

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

Salary trend for Kamailio in London

Kamailio
Salary Histogram in London

The salary distribution of IT jobs citing Kamailio in London over the 6 months to 22 January 2018.

Salary histogram for Kamailio in London

Kamailio
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Kamailio within the London region over the 6 months to 22 January 2018. 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
Central London - 1 £60,000 -
Kamailio
England

For the 6 months to 22 January 2018, IT jobs citing Kamailio 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 Kamailio.

1 20 (100.00%) Linux
1 20 (100.00%) FreeSWITCH
2 14 (70.00%) VoIP
2 14 (70.00%) Telecoms
3 11 (55.00%) Configuration Management
3 11 (55.00%) MySQL
3 11 (55.00%) Python
3 11 (55.00%) Puppet
3 11 (55.00%) nginx
3 11 (55.00%) Git (software)
3 11 (55.00%) Bash Shell
3 11 (55.00%) HAProxy
3 11 (55.00%) DevOps
3 11 (55.00%) LEMP Stack
4 10 (50.00%) Linux Command Line
4 10 (50.00%) PHP-FPM
4 10 (50.00%) Private Cloud
4 10 (50.00%) BIND 9
4 10 (50.00%) uWSGI
4 10 (50.00%) Confluence
4 10 (50.00%) MariaDB
4 10 (50.00%) WSGI
4 10 (50.00%) Cacti
4 10 (50.00%) Munin
4 10 (50.00%) Postfix
4 10 (50.00%) Cisco IOS
4 10 (50.00%) Django
4 10 (50.00%) Release Management
4 10 (50.00%) VMware Infrastructure
4 10 (50.00%) Cisco ASA

Kamailio
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 11 (55.00%) nginx
2 10 (50.00%) Confluence
2 10 (50.00%) uWSGI
3 1 (5.00%) Apache
3 1 (5.00%) Tomcat
Cloud Services
1 1 (5.00%) Amazon AWS
1 1 (5.00%) IBM Cloud
1 1 (5.00%) SoftLayer
Communications & Networking
1 14 (70.00%) VoIP
2 10 (50.00%) BGP
2 10 (50.00%) Cisco ASA
2 10 (50.00%) Cisco IOS
2 10 (50.00%) DNS
2 10 (50.00%) HTTP
2 10 (50.00%) SMTP
2 10 (50.00%) SNMP
2 10 (50.00%) SSL
2 10 (50.00%) VLAN
3 6 (30.00%) RTP
4 5 (25.00%) Asterisk PBX
4 5 (25.00%) ISDN
5 1 (5.00%) Reverse Proxy
5 1 (5.00%) TCP/IP
Database & Business Intelligence
1 11 (55.00%) MySQL
2 10 (50.00%) MariaDB
3 1 (5.00%) Amazon DynamoDB
3 1 (5.00%) Amazon Redshift
3 1 (5.00%) Couchbase
3 1 (5.00%) MongoDB
3 1 (5.00%) NoSQL
3 1 (5.00%) Redis
Development Applications
1 11 (55.00%) Git (software)
2 10 (50.00%) JIRA
2 10 (50.00%) Subversion
General
1 14 (70.00%) Telecoms
Job Titles
1 11 (55.00%) DevOps Engineer
2 10 (50.00%) Senior DevOps
2 10 (50.00%) Senior DevOps Engineer
3 8 (40.00%) DevOps Systems Engineer
3 8 (40.00%) Linux DevOps Engineer
3 8 (40.00%) Linux Engineer
3 8 (40.00%) Linux Systems Engineer
3 8 (40.00%) Linux/Unix DevOps
3 8 (40.00%) Systems Engineer
4 7 (35.00%) Senior Linux Engineer
4 7 (35.00%) Senior Linux Systems Engineer
4 7 (35.00%) Senior Systems Engineer
5 5 (25.00%) Telephony Engineer
6 4 (20.00%) Architect
6 4 (20.00%) Network Architect
6 4 (20.00%) Voice Architect
7 1 (5.00%) Infrastructure Engineer
7 1 (5.00%) Senior Architect
7 1 (5.00%) Senior Infrastructure Engineer
7 1 (5.00%) Senior Network Architect
Libraries, Frameworks & Software Standards
1 20 (100.00%) FreeSWITCH
2 11 (55.00%) LEMP Stack
3 10 (50.00%) Django
3 10 (50.00%) PHP-FPM
3 10 (50.00%) WSGI
4 1 (5.00%) CCXML
4 1 (5.00%) Elastic Stack
4 1 (5.00%) Kafka
4 1 (5.00%) LAMP
4 1 (5.00%) Memcached
4 1 (5.00%) VXML
Miscellaneous
1 10 (50.00%) Linux Command Line
1 10 (50.00%) Private Cloud
1 10 (50.00%) Replication
1 10 (50.00%) Wiki
2 1 (5.00%) Analytical Skills
2 1 (5.00%) Computer Science
2 1 (5.00%) Data Centre
Operating Systems
1 20 (100.00%) Linux
2 10 (50.00%) Debian
2 10 (50.00%) Ubuntu
Processes & Methodologies
1 11 (55.00%) Configuration Management
1 11 (55.00%) DevOps
2 10 (50.00%) BCP
2 10 (50.00%) Release Management
3 9 (45.00%) Open Source
4 1 (5.00%) High Availability
Programming Languages
1 11 (55.00%) Bash Shell
1 11 (55.00%) Python
2 10 (50.00%) Perl
2 10 (50.00%) PHP
3 5 (25.00%) C
3 5 (25.00%) C#
3 5 (25.00%) C++
4 1 (5.00%) Ruby
Qualifications
1 1 (5.00%) Computer Science Degree
1 1 (5.00%) Degree
1 1 (5.00%) Master's Degree
System Software
1 10 (50.00%) BIND 9
1 10 (50.00%) Postfix
1 10 (50.00%) VMware ESXi
1 10 (50.00%) VMware Infrastructure
2 1 (5.00%) Apache ZooKeeper
Systems Management
1 11 (55.00%) HAProxy
1 11 (55.00%) Puppet
2 10 (50.00%) Cacti
2 10 (50.00%) Munin
2 10 (50.00%) Nagios
3 1 (5.00%) Ansible
3 1 (5.00%) Consul
3 1 (5.00%) Grafana
3 1 (5.00%) Graphite
3 1 (5.00%) Icinga
3 1 (5.00%) Riemann
Vendors
1 10 (50.00%) Cisco
1 10 (50.00%) Dell
1 10 (50.00%) VMware
2 4 (20.00%) BroadSoft
2 4 (20.00%) GENBAND
2 4 (20.00%) Huawei
2 4 (20.00%) Sonus
3 1 (5.00%) Rackspace