Period
to 3 August 2021

The following table provides summary statistics for permanent job vacancies advertised in London with a requirement for PBX skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited PBX over the 6 months to 3 August 2021 with a comparison to the same period in the previous 2 years.

Private Branch Exchange (PBX)
England > London
6 months to
3 Aug 2021
Same period 2020 Same period 2019
Rank 643 502 682
Rank change year-on-year -141 +180 +96
Permanent jobs citing PBX 36 46 67
As % of all permanent jobs advertised in London 0.079% 0.17% 0.12%
As % of the Communications & Networking category 0.71% 1.21% 0.94%
Number of salaries quoted 34 45 45
10th Percentile £37,000 £29,300 £28,550
25th Percentile £41,250 £45,000 £36,250
Median annual salary (50th Percentile) £50,000 £70,000 £45,000
Median % change year-on-year -28.57% +55.56% -13.46%
75th Percentile £65,625 £80,000 £55,000
90th Percentile £70,000 £82,500 £86,000
England median annual salary £42,500 £42,500 £42,500

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 5,077 3,817 7,112
As % of all permanent IT jobs advertised in London 11.20% 13.70% 12.44%
Number of salaries quoted 3,347 3,098 5,851
10th Percentile £33,900 £32,500 £29,000
25th Percentile £47,000 £45,000 £37,500
Median annual salary (50th Percentile) £62,500 £60,000 £55,000
Median % change year-on-year +4.17% +9.09% -
75th Percentile £80,000 £77,500 £75,000
90th Percentile £95,000 £90,000 £87,500
England median annual salary £50,000 £50,000 £46,000
% change year-on-year - +8.70% -3.16%

PBX
Job Vacancy Trend in London

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

Job vacancy trend for PBX in London

PBX
Salary Trend in London

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

Salary trend for PBX in London

PBX
Salary Histogram in London

Salary distribution for jobs citing PBX in London over the 6 months to 3 August 2021.

Salary histogram for PBX in London

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 PBX within the London region over the 6 months to 3 August 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 -8 5 £70,000 +211.11%
Central London -27 3 £45,000 -37.93% 2
PBX
England

For the 6 months to 3 August 2021, IT jobs citing 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 PBX.

1 21 (58.33%) Firewall
2 20 (55.56%) Linux
3 18 (50.00%) Microsoft
3 18 (50.00%) Asterisk PBX
4 17 (47.22%) Windows
5 16 (44.44%) Degree
5 16 (44.44%) Mitel
6 15 (41.67%) VoIP
6 15 (41.67%) Internet
6 15 (41.67%) Kamailio
6 15 (41.67%) High Availability
7 13 (36.11%) LAN
7 13 (36.11%) Open Source
8 12 (33.33%) Telecoms
8 12 (33.33%) Cisco
8 12 (33.33%) Analytical Skills
9 11 (30.56%) KVM
9 11 (30.56%) Data Centre
9 11 (30.56%) VPN
9 11 (30.56%) C
9 11 (30.56%) Debian
10 10 (27.78%) Risk Assessment
10 10 (27.78%) Penetration Testing
10 10 (27.78%) Games
10 10 (27.78%) Bash Shell
10 10 (27.78%) ZABBIX
10 10 (27.78%) Postfix
10 10 (27.78%) nginx
10 10 (27.78%) XMPP
10 10 (27.78%) Load Balancing

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 10 (27.78%) Apache
1 10 (27.78%) ejabberd
1 10 (27.78%) IIS
1 10 (27.78%) nginx
1 10 (27.78%) Tomcat
2 7 (19.44%) SharePoint
3 1 (2.78%) OpenStack
3 1 (2.78%) Skype for Business
Applications
1 4 (11.11%) Microsoft Office
Business Applications
1 2 (5.56%) Dynamics CRM
Cloud Services
1 10 (27.78%) Microsoft 365
2 9 (25.00%) Azure
3 6 (16.67%) AWS
4 4 (11.11%) Azure Active Directory
5 3 (8.33%) Mimecast
6 1 (2.78%) Cloud Computing
6 1 (2.78%) OneDrive
6 1 (2.78%) Power Automate
6 1 (2.78%) Power Platform
6 1 (2.78%) PowerApps
Communications & Networking
1 21 (58.33%) Firewall
2 18 (50.00%) Asterisk PBX
3 15 (41.67%) Internet
3 15 (41.67%) VoIP
4 13 (36.11%) LAN
5 11 (30.56%) VPN
6 10 (27.78%) BGP
6 10 (27.78%) Diameter Protocol
6 10 (27.78%) SNMP
7 4 (11.11%) PSTN
8 3 (8.33%) Unified Communications
8 3 (8.33%) WAN
9 2 (5.56%) DHCP
9 2 (5.56%) DNS
10 1 (2.78%) RTP
10 1 (2.78%) SAN
10 1 (2.78%) Skype
10 1 (2.78%) TCP/IP
10 1 (2.78%) Wi-Fi
10 1 (2.78%) Wireless
Database & Business Intelligence
1 10 (27.78%) SQL Server
2 1 (2.78%) Power BI
General
1 12 (33.33%) Analytical Skills
1 12 (33.33%) Telecoms
2 10 (27.78%) Games
2 10 (27.78%) Organisational Skills
3 2 (5.56%) Banking
3 2 (5.56%) Finance
3 2 (5.56%) Social Skills
4 1 (2.78%) Billing
4 1 (2.78%) Electronics
4 1 (2.78%) Front Office
4 1 (2.78%) Manufacturing
4 1 (2.78%) Marketing
4 1 (2.78%) Public Sector
Job Titles
1 10 (27.78%) Network Engineer
1 10 (27.78%) Network Systems Engineer
1 10 (27.78%) Systems Engineer
2 8 (22.22%) VoIP Engineer
3 5 (13.89%) Software Engineer
4 3 (8.33%) Implementation Engineer
4 3 (8.33%) Mitel Specialist
4 3 (8.33%) Provisioning Engineer
5 2 (5.56%) Analyst
5 2 (5.56%) Infrastructure Engineer
5 2 (5.56%) Support Engineer
6 1 (2.78%) Administrator
6 1 (2.78%) Business Analyst
6 1 (2.78%) Consultant
6 1 (2.78%) Customer Engineer
6 1 (2.78%) IT Manager
6 1 (2.78%) Service Analyst
6 1 (2.78%) Support Specialist
6 1 (2.78%) Systems Administrator
6 1 (2.78%) Technical Support
Libraries, Frameworks & Software Standards
1 10 (27.78%) XMPP
2 7 (19.44%) WebRTC
3 6 (16.67%) FreeSWITCH
Miscellaneous
1 11 (30.56%) Data Centre
2 3 (8.33%) Enterprise Cloud
3 1 (2.78%) Legacy Applications
3 1 (2.78%) Smartphone
Operating Systems
1 20 (55.56%) Linux
2 17 (47.22%) Windows
3 11 (30.56%) Debian
4 6 (16.67%) Windows 10
5 4 (11.11%) Windows Server 2016
6 2 (5.56%) Windows Server
7 1 (2.78%) CentOS
7 1 (2.78%) Ubuntu
Processes & Methodologies
1 15 (41.67%) High Availability
2 13 (36.11%) Open Source
3 10 (27.78%) Architectural Design
3 10 (27.78%) Computer Science
3 10 (27.78%) Continuous Integration
3 10 (27.78%) Cost Reduction
3 10 (27.78%) Load Balancing
3 10 (27.78%) Penetration Testing
3 10 (27.78%) Risk Assessment
4 5 (13.89%) Capacity Planning
4 5 (13.89%) Problem-Solving
4 5 (13.89%) Software Engineering
5 4 (11.11%) Cybersecurity
5 4 (11.11%) Service Delivery
6 3 (8.33%) CRM
6 3 (8.33%) Infrastructure Monitoring
7 2 (5.56%) Continuous Improvement
7 2 (5.56%) DevOps
7 2 (5.56%) Infrastructure Engineering
7 2 (5.56%) Patch Management
Programming Languages
1 11 (30.56%) C
2 10 (27.78%) Bash Shell
2 10 (27.78%) Perl
2 10 (27.78%) PHP
3 4 (11.11%) JavaScript
3 4 (11.11%) SQL
4 3 (8.33%) PowerShell
5 1 (2.78%) Python
5 1 (2.78%) VB
Qualifications
1 16 (44.44%) Degree
2 10 (27.78%) Computer Science Degree
3 1 (2.78%) CCNA
3 1 (2.78%) Cisco Certification
3 1 (2.78%) ITIL Certification
3 1 (2.78%) MCP
3 1 (2.78%) MCSA
3 1 (2.78%) MCSE
3 1 (2.78%) Microsoft Certification
3 1 (2.78%) SC Cleared
3 1 (2.78%) Security Cleared
3 1 (2.78%) VMware Certified Professional (VCP)
Quality Assurance & Compliance
1 1 (2.78%) GDPR
1 1 (2.78%) QA
1 1 (2.78%) SLA
System Software
1 15 (41.67%) Kamailio
2 11 (30.56%) KVM
3 10 (27.78%) iptables
3 10 (27.78%) Postfix
3 10 (27.78%) QEMU
4 7 (19.44%) Active Directory
4 7 (19.44%) VMware Infrastructure
5 5 (13.89%) OpenSIPS
6 2 (5.56%) Hyper-V
7 1 (2.78%) BitLocker
7 1 (2.78%) Docker
7 1 (2.78%) vSphere
Systems Management
1 10 (27.78%) Ansible
1 10 (27.78%) Galera Cluster
1 10 (27.78%) HAProxy
1 10 (27.78%) Puppet
1 10 (27.78%) ZABBIX
2 3 (8.33%) SCCM
3 2 (5.56%) Microsoft Intune
4 1 (2.78%) Kubernetes
4 1 (2.78%) Terraform
Vendors
1 18 (50.00%) Microsoft
2 16 (44.44%) Mitel
3 12 (33.33%) Cisco
4 10 (27.78%) GENBAND
4 10 (27.78%) HP
4 10 (27.78%) Juniper
4 10 (27.78%) Nortel
4 10 (27.78%) Percona
4 10 (27.78%) SonicWALL
5 8 (22.22%) Sonus
6 7 (19.44%) VMware
7 5 (13.89%) Yealink
8 4 (11.11%) Veeam
9 3 (8.33%) BroadSoft
9 3 (8.33%) Meraki
9 3 (8.33%) MuleSoft
9 3 (8.33%) Oracle
10 2 (5.56%) HubSpot
11 1 (2.78%) Aruba
11 1 (2.78%) SAP