Period
to 21 September 2021

The following table provides summary statistics for permanent job vacancies advertised in London with a requirement for Asterisk PBX skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Asterisk PBX over the 6 months to 21 September 2021 with a comparison to the same period in the previous 2 years.

Digium Asterisk
England > London
6 months to
21 Sep 2021
Same period 2020 Same period 2019
Rank 690 484 712
Rank change year-on-year -206 +228 +120
Permanent jobs citing Asterisk PBX 24 8 28
As % of all permanent jobs advertised in London 0.049% 0.039% 0.050%
As % of the Communications & Networking category 0.42% 0.29% 0.39%
Number of salaries quoted 16 8 16
10th Percentile " " £25,500
25th Percentile £37,000 £52,500 £29,063
Median annual salary (50th Percentile) £50,000 £60,000 £40,500
Median % change year-on-year -16.67% +48.15% +4.52%
75th Percentile £70,000 £69,375 £60,000
90th Percentile " £82,500 £62,500
England median annual salary £50,000 £57,500 £41,250
% change year-on-year -13.04% +39.39% +17.86%

Asterisk PBX is in the Communications and Computer Networking 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 communications or computer networking skills.

All Communications and Computer Networking Skills
London
Permanent vacancies with a requirement for communications or computer networking skills 5,684 2,793 7,128
As % of all permanent IT jobs advertised in London 11.58% 13.71% 12.84%
Number of salaries quoted 3,701 2,314 5,850
10th Percentile £33,000 £36,250 £28,750
25th Percentile £46,250 £47,500 £37,500
Median annual salary (50th Percentile) £62,500 £65,000 £55,000
Median % change year-on-year -3.85% +18.18% -
75th Percentile £80,000 £80,000 £75,000
90th Percentile £95,000 £95,000 £87,500
England median annual salary £50,000 £52,500 £46,000
% change year-on-year -4.76% +14.13% -3.16%

Asterisk PBX
Job Vacancy Trend in London

Job postings citing Asterisk PBX as a proportion of all IT jobs advertised in London.

Job vacancy trend for Asterisk PBX in London

Asterisk PBX
Salary Trend in London

3-month moving average salary quoted in jobs citing Asterisk PBX in London.

Salary trend for Asterisk PBX in London

Asterisk PBX
Salary Histogram in London

Salary distribution for jobs citing Asterisk PBX in London over the 6 months to 21 September 2021.

Salary histogram for Asterisk PBX in London

Asterisk PBX
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Asterisk PBX within the London region over the 6 months to 21 September 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
South London - 5 £70,000 -
Central London - 1 £40,000 - 3
Asterisk PBX
England

For the 6 months to 21 September 2021, IT jobs citing Asterisk PBX 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 across the London region with a requirement for Asterisk PBX.

1 20 (83.33%) VoIP
2 18 (75.00%) Degree
3 13 (54.17%) FreeSWITCH
3 13 (54.17%) C
3 13 (54.17%) PBX
3 13 (54.17%) WebRTC
3 13 (54.17%) Analytical Skills
4 12 (50.00%) Data Centre
4 12 (50.00%) Computer Science Degree
4 12 (50.00%) Computer Science
5 11 (45.83%) Linux
6 9 (37.50%) Internet
6 9 (37.50%) Firewall
6 9 (37.50%) High Availability
6 9 (37.50%) Kamailio
6 9 (37.50%) Sonus
7 8 (33.33%) GDB
7 8 (33.33%) Node.js
7 8 (33.33%) Go
7 8 (33.33%) Customer-Centricity
7 8 (33.33%) Snapchat
7 8 (33.33%) WhatsApp
7 8 (33.33%) Clean Code
7 8 (33.33%) Mitel
7 8 (33.33%) Git (software)
7 8 (33.33%) Valgrind
7 8 (33.33%) Open Source
7 8 (33.33%) Python
8 6 (25.00%) PHP
8 6 (25.00%) Software Engineering

Asterisk PBX
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 (16.67%) Apache
1 4 (16.67%) ejabberd
1 4 (16.67%) IIS
1 4 (16.67%) nginx
1 4 (16.67%) Tomcat
Cloud Services
1 8 (33.33%) WhatsApp
2 1 (4.17%) GitHub
Communications & Networking
1 20 (83.33%) VoIP
2 13 (54.17%) PBX
3 9 (37.50%) Firewall
3 9 (37.50%) Internet
4 4 (16.67%) BGP
4 4 (16.67%) Diameter Protocol
4 4 (16.67%) LAN
4 4 (16.67%) PSTN
4 4 (16.67%) SNMP
4 4 (16.67%) VPN
5 1 (4.17%) RS-422
5 1 (4.17%) TCP/IP
5 1 (4.17%) Wi-Fi
Database & Business Intelligence
1 4 (16.67%) SQL Server
2 1 (4.17%) MySQL
Development Applications
1 8 (33.33%) GDB
1 8 (33.33%) Git (software)
1 8 (33.33%) Valgrind
2 1 (4.17%) Gerrit
2 1 (4.17%) Jenkins
2 1 (4.17%) JIRA
2 1 (4.17%) Subversion
General
1 13 (54.17%) Analytical Skills
2 5 (20.83%) Telecoms
3 4 (16.67%) Games
3 4 (16.67%) Organisational Skills
4 1 (4.17%) Advertising
4 1 (4.17%) Presentation Skills
Job Titles
1 9 (37.50%) Developer
1 9 (37.50%) VoIP Engineer
2 8 (33.33%) C Developer
3 6 (25.00%) Software Engineer
4 4 (16.67%) Implementation Engineer
4 4 (16.67%) Network Engineer
4 4 (16.67%) Network Systems Engineer
4 4 (16.67%) Provisioning Engineer
4 4 (16.67%) Systems Engineer
5 1 (4.17%) Asterisk Engineer
5 1 (4.17%) Embedded Engineer
5 1 (4.17%) Embedded Software Engineer
5 1 (4.17%) LAMP Developer
5 1 (4.17%) Senior Developer
5 1 (4.17%) Senior Embedded Software Engineer
5 1 (4.17%) Senior LAMP Developer
5 1 (4.17%) Senior Software Engineer
Libraries, Frameworks & Software Standards
1 13 (54.17%) FreeSWITCH
1 13 (54.17%) WebRTC
2 8 (33.33%) Node.js
3 4 (16.67%) XMPP
4 2 (8.33%) LAMP
Miscellaneous
1 12 (50.00%) Data Centre
2 4 (16.67%) Enterprise Cloud
3 1 (4.17%) Device Driver
3 1 (4.17%) Embedded Systems
3 1 (4.17%) Media Streaming
Operating Systems
1 11 (45.83%) Linux
2 4 (16.67%) Debian
2 4 (16.67%) Windows
3 1 (4.17%) Embedded Linux
Processes & Methodologies
1 12 (50.00%) Computer Science
2 9 (37.50%) High Availability
3 8 (33.33%) Clean Code
3 8 (33.33%) Customer-Centricity
3 8 (33.33%) Open Source
4 6 (25.00%) Software Engineering
5 5 (20.83%) Capacity Planning
6 4 (16.67%) Architectural Design
6 4 (16.67%) Continuous Integration
6 4 (16.67%) Cost Reduction
6 4 (16.67%) Load Balancing
6 4 (16.67%) Penetration Testing
6 4 (16.67%) Risk Assessment
7 1 (4.17%) Device Driver Development
7 1 (4.17%) Embedded Software Development
7 1 (4.17%) Integration Testing
7 1 (4.17%) Problem-Solving
7 1 (4.17%) Requirements Gathering
7 1 (4.17%) Requirements Management
7 1 (4.17%) Software Architecture
Programming Languages
1 13 (54.17%) C
2 8 (33.33%) Go
2 8 (33.33%) Python
3 6 (25.00%) PHP
4 5 (20.83%) Bash Shell
5 4 (16.67%) Perl
6 1 (4.17%) C++
Qualifications
1 18 (75.00%) Degree
2 12 (50.00%) Computer Science Degree
3 1 (4.17%) Master's Degree
Quality Assurance & Compliance
1 1 (4.17%) QA
System Software
1 9 (37.50%) Kamailio
2 6 (25.00%) OpenSIPS
3 4 (16.67%) iptables
3 4 (16.67%) KVM
3 4 (16.67%) Postfix
3 4 (16.67%) QEMU
4 1 (4.17%) Firmware
Systems Management
1 4 (16.67%) Ansible
1 4 (16.67%) Galera Cluster
1 4 (16.67%) HAProxy
1 4 (16.67%) Puppet
1 4 (16.67%) ZABBIX
Vendors
1 9 (37.50%) Sonus
2 8 (33.33%) Mitel
2 8 (33.33%) Snapchat
3 5 (20.83%) Yealink
4 4 (16.67%) BroadSoft
4 4 (16.67%) Cisco
4 4 (16.67%) GENBAND
4 4 (16.67%) HP
4 4 (16.67%) Juniper
4 4 (16.67%) Microsoft
4 4 (16.67%) Nortel
4 4 (16.67%) Percona
4 4 (16.67%) SonicWALL