Period
to 14 June 2021

The following table provides summary statistics for permanent job vacancies advertised in London with a requirement for VoIP skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited VoIP over the 6 months to 14 June 2021 with a comparison to the same period in the previous 2 years.

Voice Over IP (VoIP)
England > London
6 months to
14 Jun 2021
Same period 2020 Same period 2019
Rank 458 326 354
Rank change year-on-year -132 +28 +87
Permanent jobs citing VoIP 176 302 485
As % of all permanent jobs advertised in London 0.46% 0.87% 0.84%
As % of the Communications & Networking category 4.39% 6.68% 6.65%
Number of salaries quoted 142 267 397
10th Percentile £32,500 £28,500 £26,439
25th Percentile £37,500 £36,250 £30,000
Median annual salary (50th Percentile) £50,000 £50,000 £46,220
Median % change year-on-year - +8.18% -2.69%
75th Percentile £66,563 £65,000 £57,500
90th Percentile £81,250 £76,750 £70,000
England median annual salary £40,000 £40,000 £40,000

VoIP 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 4,012 4,519 7,298
As % of all permanent IT jobs advertised in London 10.54% 12.98% 12.67%
Number of salaries quoted 2,865 3,658 6,001
10th Percentile £36,250 £31,250 £29,250
25th Percentile £47,500 £42,500 £38,250
Median annual salary (50th Percentile) £62,500 £58,750 £55,000
Median % change year-on-year +6.38% +6.82% -
75th Percentile £80,000 £75,000 £75,000
90th Percentile £92,500 £88,750 £87,500
England median annual salary £50,000 £50,000 £47,500
% change year-on-year - +5.26% -

VoIP
Job Vacancy Trend in London

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

Job vacancy trend for VoIP in London

VoIP
Salary Trend in London

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

Salary trend for VoIP in London

VoIP
Salary Histogram in London

Salary distribution for jobs citing VoIP in London over the 6 months to 14 June 2021.

Salary histogram for VoIP in London

VoIP
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing VoIP within the London region over the 6 months to 14 June 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
Central London -31 23 £50,000 - 6
South London -1 10 £59,250 +36.90% 1
West London +1 9 £37,500 -25.00% 3
East London +6 2 £35,913 +0.45% 5
VoIP
England

For the 6 months to 14 June 2021, IT jobs citing VoIP 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 VoIP.

1 94 (53.41%) Windows
2 90 (51.14%) Firewall
3 78 (44.32%) Active Directory
4 77 (43.75%) Microsoft
5 71 (40.34%) Microsoft 365
6 64 (36.36%) Windows Server
7 59 (33.52%) LAN
8 57 (32.39%) DNS
9 56 (31.82%) Cisco
10 55 (31.25%) WAN
10 55 (31.25%) Azure
11 52 (29.55%) DHCP
12 49 (27.84%) VPN
13 48 (27.27%) Social Skills
14 40 (22.73%) VMware
15 39 (22.16%) PowerShell
16 38 (21.59%) TCP/IP
17 35 (19.89%) Telecoms
18 34 (19.32%) SAN
18 34 (19.32%) Hyper-V
19 33 (18.75%) Linux
20 31 (17.61%) Wi-Fi
21 30 (17.05%) Degree
22 29 (16.48%) Infrastructure Engineering
23 27 (15.34%) VMware Infrastructure
24 26 (14.77%) SonicWALL
25 25 (14.20%) AWS
25 25 (14.20%) Python
26 24 (13.64%) MS Exchange
26 24 (13.64%) Data Centre

VoIP
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 24 (13.64%) MS Exchange
2 15 (8.52%) SharePoint
3 10 (5.68%) Exchange Server 2013
3 10 (5.68%) IIS
4 7 (3.98%) Tomcat
5 6 (3.41%) Apache
6 5 (2.84%) nginx
7 3 (1.70%) Exchange Server 2010
8 2 (1.14%) OpenStack
8 2 (1.14%) SAS
8 2 (1.14%) Skype for Business
9 1 (0.57%) CMS
9 1 (0.57%) Confluence
9 1 (0.57%) Oracle SOA Suite
Applications
1 23 (13.07%) Microsoft Office
2 7 (3.98%) Microsoft Excel
3 2 (1.14%) MS Visio
4 1 (0.57%) Microsoft PowerPoint
Business Applications
1 3 (1.70%) Magento
1 3 (1.70%) Sage 300 ERP
1 3 (1.70%) Sage CRM
2 2 (1.14%) Exchequer
2 2 (1.14%) FastStats
2 2 (1.14%) Unica
3 1 (0.57%) NetSuite
3 1 (0.57%) Oracle Receivables
Cloud Services
1 71 (40.34%) Microsoft 365
2 55 (31.25%) Azure
3 25 (14.20%) AWS
4 14 (7.95%) Mimecast
5 9 (5.11%) Cloudflare
5 9 (5.11%) SaaS
6 8 (4.55%) Azure Active Directory
6 8 (4.55%) WhatsApp
7 7 (3.98%) Azure Storage
7 7 (3.98%) PaaS
8 5 (2.84%) IaaS
9 3 (1.70%) AWS CloudFormation
9 3 (1.70%) Cloud Computing
9 3 (1.70%) Google Workspace
10 2 (1.14%) GCP
10 2 (1.14%) OneDrive
10 2 (1.14%) Serverless
11 1 (0.57%) AWS Lambda
11 1 (0.57%) Dynamics 365
11 1 (0.57%) Slack
Communications & Networking
1 90 (51.14%) Firewall
2 59 (33.52%) LAN
3 57 (32.39%) DNS
4 55 (31.25%) WAN
5 52 (29.55%) DHCP
6 49 (27.84%) VPN
7 38 (21.59%) TCP/IP
8 34 (19.32%) SAN
9 31 (17.61%) Wi-Fi
10 23 (13.07%) SSL
11 21 (11.93%) VLAN
12 18 (10.23%) Asterisk PBX
12 18 (10.23%) Wireless
13 15 (8.52%) Unified Communications
14 14 (7.95%) BGP
14 14 (7.95%) MPLS
15 13 (7.39%) H.323
15 13 (7.39%) Remote Desktop
16 12 (6.82%) PBX
17 10 (5.68%) Internet
Database & Business Intelligence
1 17 (9.66%) SQL Server
2 3 (1.70%) Crystal Reports
2 3 (1.70%) MS Access
2 3 (1.70%) SQL Server 2012
3 2 (1.14%) Data Vault
3 2 (1.14%) MySQL
4 1 (0.57%) SQLite
Development Applications
1 12 (6.82%) JIRA
2 8 (4.55%) GDB
2 8 (4.55%) Git (software)
2 8 (4.55%) Valgrind
3 3 (1.70%) Jenkins
4 1 (0.57%) CircleCI
4 1 (0.57%) GitLab
4 1 (0.57%) Sonatype Nexus
4 1 (0.57%) Visual Studio
General
1 48 (27.27%) Social Skills
2 35 (19.89%) Telecoms
3 18 (10.23%) Analytical Skills
3 18 (10.23%) Finance
4 7 (3.98%) Marketing
5 6 (3.41%) Law
6 5 (2.84%) Organisational Skills
7 3 (1.70%) Manufacturing
8 2 (1.14%) Banking
8 2 (1.14%) Games
8 2 (1.14%) Legal
9 1 (0.57%) Advertising
9 1 (0.57%) Documentation Skills
9 1 (0.57%) Military
9 1 (0.57%) Presentation Skills
9 1 (0.57%) Publishing
9 1 (0.57%) Retail
Job Titles
1 28 (15.91%) Network Engineer
2 24 (13.64%) Support Engineer
3 17 (9.66%) Developer
4 16 (9.09%) 3rd Line Support
4 16 (9.09%) Administrator
5 15 (8.52%) Analyst
5 15 (8.52%) Cisco Engineer
6 13 (7.39%) IT Support
6 13 (7.39%) Systems Administrator
7 12 (6.82%) IT Engineer
7 12 (6.82%) Unified Communications Engineer
7 12 (6.82%) VoIP Engineer
8 11 (6.25%) Support Analyst
9 10 (5.68%) 3rd Line Engineer
10 9 (5.11%) 3rd Line Support Engineer
10 9 (5.11%) Azure Administrator
10 9 (5.11%) Infrastructure Specialist
11 8 (4.55%) 2nd Line Support
11 8 (4.55%) C Developer
11 8 (4.55%) Infrastructure Engineer
Libraries, Frameworks & Software Standards
1 20 (11.36%) WebRTC
2 18 (10.23%) FreeSWITCH
3 8 (4.55%) Node.js
4 7 (3.98%) 802.1X
4 7 (3.98%) CSS
4 7 (3.98%) HTML
5 4 (2.27%) LDAP
6 3 (1.70%) OAuth
6 3 (1.70%) POSIX
7 2 (1.14%) GraphQL
7 2 (1.14%) LAMP
7 2 (1.14%) React
8 1 (0.57%) FIX Protocol
8 1 (0.57%) Lambda Expressions
8 1 (0.57%) XMPP
Miscellaneous
1 24 (13.64%) Data Centre
2 12 (6.82%) Video Conferencing
3 6 (3.41%) Clustering
4 5 (2.84%) Media Streaming
5 4 (2.27%) Digital Signage
5 4 (2.27%) Driving Licence
5 4 (2.27%) iPhone
5 4 (2.27%) IPTV
5 4 (2.27%) Management Information System
6 3 (1.70%) Linux Command Line
6 3 (1.70%) NHS
6 3 (1.70%) Self-Motivation
6 3 (1.70%) User Experience
7 2 (1.14%) EFT
7 2 (1.14%) Enterprise Software
7 2 (1.14%) EPoS
7 2 (1.14%) Fat Client
7 2 (1.14%) Fibre Optics
7 2 (1.14%) Thin Client
8 1 (0.57%) Virtual Team
Operating Systems
1 94 (53.41%) Windows
2 64 (36.36%) Windows Server
3 33 (18.75%) Linux
4 22 (12.50%) Windows Server 2008
4 22 (12.50%) Windows Server 2012
4 22 (12.50%) Windows Server 2016
5 15 (8.52%) Windows 10
6 14 (7.95%) Mac OS
6 14 (7.95%) Windows 7
7 11 (6.25%) Debian
8 7 (3.98%) CentOS
9 6 (3.41%) Android
9 6 (3.41%) Apple iOS
10 5 (2.84%) Mac OS X
11 4 (2.27%) Red Hat Enterprise Linux
12 3 (1.70%) Windows Server 2003
12 3 (1.70%) Windows Server 2019
13 2 (1.14%) Ubuntu
13 2 (1.14%) Unix
13 2 (1.14%) VMS
Processes & Methodologies
1 29 (16.48%) Infrastructure Engineering
2 22 (12.50%) Computer Science
3 21 (11.93%) ITIL
4 17 (9.66%) Disaster Recovery
5 16 (9.09%) Agile Software Development
6 14 (7.95%) Problem-Solving
7 13 (7.39%) Cost Reduction
7 13 (7.39%) Software Engineering
8 12 (6.82%) Infrastructure Monitoring
8 12 (6.82%) Patch Management
9 11 (6.25%) BCP
10 10 (5.68%) Incident Management
10 10 (5.68%) Open Source
11 9 (5.11%) Business Continuity
11 9 (5.11%) Business Continuity Planning
11 9 (5.11%) High Availability
11 9 (5.11%) ITSM
11 9 (5.11%) Load Balancing
11 9 (5.11%) Preventative Maintenance
12 8 (4.55%) Customer-Centricity
Programming Languages
1 39 (22.16%) PowerShell
2 25 (14.20%) Python
3 16 (9.09%) C
3 16 (9.09%) SQL
4 12 (6.82%) Bash Shell
5 10 (5.68%) Go
5 10 (5.68%) JavaScript
6 9 (5.11%) VB
7 7 (3.98%) C++
7 7 (3.98%) PHP
8 4 (2.27%) Lua
8 4 (2.27%) R
8 4 (2.27%) TypeScript
9 3 (1.70%) Kotlin
10 2 (1.14%) Apple Swift
10 2 (1.14%) Java
10 2 (1.14%) Objective-C
10 2 (1.14%) T-SQL
11 1 (0.57%) Perl
11 1 (0.57%) Rust
Qualifications
1 30 (17.05%) Degree
2 20 (11.36%) Cisco Certification
2 20 (11.36%) Computer Science Degree
3 13 (7.39%) CCNA
4 10 (5.68%) CCNP
5 9 (5.11%) JNCIA
6 4 (2.27%) ITIL Certification
6 4 (2.27%) ITIL Foundation Certificate
7 3 (1.70%) CCIE
7 3 (1.70%) SC Cleared
7 3 (1.70%) Security Cleared
8 2 (1.14%) MCP
8 2 (1.14%) MCSA
8 2 (1.14%) MCSE
8 2 (1.14%) Microsoft Certification
8 2 (1.14%) VMware Certified Professional (VCP)
9 1 (0.57%) CCVP
9 1 (0.57%) DV Cleared
9 1 (0.57%) JNCIP
9 1 (0.57%) Network+ Certification
Quality Assurance & Compliance
1 5 (2.84%) SLA
2 3 (1.70%) ISO/IEC 27001
3 2 (1.14%) GDPR
3 2 (1.14%) HIPAA
4 1 (0.57%) SOC 2
System Software
1 78 (44.32%) Active Directory
2 34 (19.32%) Hyper-V
3 27 (15.34%) VMware Infrastructure
4 16 (9.09%) XenDesktop
5 10 (5.68%) vSphere
6 9 (5.11%) OpenSIPS
6 9 (5.11%) VMware ESXi
7 8 (4.55%) Kamailio
8 7 (3.98%) KVM
9 5 (2.84%) iptables
9 5 (2.84%) QEMU
10 4 (2.27%) Docker
10 4 (2.27%) Terminal Services
10 4 (2.27%) Virtual Machines
11 2 (1.14%) XenApp
12 1 (0.57%) MetaFrame
12 1 (0.57%) Virtual Servers
12 1 (0.57%) VMware NSX
Systems Management
1 14 (7.95%) Cisco CUCM
1 14 (7.95%) SCCM
2 11 (6.25%) Cisco Prime
2 11 (6.25%) Microsoft Intune
3 9 (5.11%) Cisco UCCX
4 8 (4.55%) Ansible
5 6 (3.41%) FortiGate
5 6 (3.41%) Kubernetes
6 5 (2.84%) Galera Cluster
6 5 (2.84%) HAProxy
6 5 (2.84%) ZABBIX
7 4 (2.27%) Active Directory Federation Services
7 4 (2.27%) Jamf Pro
8 3 (1.70%) Failover Clustering
8 3 (1.70%) Puppet
8 3 (1.70%) Symantec Endpoint Protection
8 3 (1.70%) Terraform
9 2 (1.14%) Backup Exec
9 2 (1.14%) ITRS Geneos
9 2 (1.14%) Single Sign-On
Vendors
1 77 (43.75%) Microsoft
2 56 (31.82%) Cisco
3 40 (22.73%) VMware
4 26 (14.77%) SonicWALL
5 22 (12.50%) Palo Alto
6 21 (11.93%) Juniper
7 20 (11.36%) Aruba
8 18 (10.23%) Citrix
8 18 (10.23%) Dell
9 14 (7.95%) Mitel
10 13 (7.39%) Ruckus Wireless
11 11 (6.25%) Avaya
11 11 (6.25%) HP
11 11 (6.25%) Meraki
12 10 (5.68%) Aerohive Networks
13 9 (5.11%) Splunk
14 8 (4.55%) Apple
14 8 (4.55%) Snapchat
15 7 (3.98%) Veeam
16 6 (3.41%) GENBAND