Period
to 20 April 2018

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 20 April 2018 with a comparison to the same period in the previous 2 years.

Voice Over IP (VoIP)
England > London
6 months to
20 Apr 2018
Same period 2017 Same period 2016
Rank 399 281 265
Rank change year-on-year -118 -16 -6
Permanent jobs citing VoIP 525 826 1,113
As % of all permanent IT jobs advertised in London 0.75% 1.20% 1.33%
As % of the Communications & Networking category 5.24% 7.58% 8.44%
Number of salaries quoted 470 768 970
London median annual salary £45,000 £47,500 £47,125
Median salary % change year-on-year -5.26% +0.80% +4.72%
10th Percentile £25,450 £27,500 £26,500
90th Percentile £78,750 £78,750 £70,125
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 10,025 10,894 13,194
As % of all permanent IT jobs advertised in London 14.32% 15.79% 15.72%
Number of salaries quoted 8,311 9,199 11,183
London median annual salary £55,000 £55,000 £52,250
Median salary % change year-on-year - +5.26% +4.50%
10th Percentile £31,050 £30,000 £28,500
90th Percentile £83,750 £80,500 £77,500
England median annual salary £47,000 £45,000 £45,000
% change year-on-year +4.44% - +4.65%

VoIP
Job Vacancy Trend in London

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

Job vacancy trend for VoIP in London

VoIP
Salary Trend in London

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

Salary trend for VoIP in London

VoIP
Salary Histogram in London

The salary distribution of IT jobs citing VoIP in London over the 6 months to 20 April 2018.

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 20 April 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 -74 114 £45,000 - 8
East London +5 28 £31,000 +6.90% 4
South London -30 25 £40,000 -20.00% 2
West London -16 23 £50,000 +11.11% 11
North London -5 9 £20,000 -20.00% 1
VoIP
England

For the 6 months to 20 April 2018, 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.

1 256 (48.76%) Windows
2 234 (44.57%) Cisco
3 223 (42.48%) Microsoft
4 209 (39.81%) Active Directory
5 187 (35.62%) Firewall
6 150 (28.57%) WAN
7 142 (27.05%) VMware
8 141 (26.86%) LAN
9 126 (24.00%) DNS
10 125 (23.81%) Office 365
11 121 (23.05%) VMware Infrastructure
12 120 (22.86%) Windows Server
12 120 (22.86%) Cisco Certification
13 113 (21.52%) Telecoms
13 113 (21.52%) Finance
14 108 (20.57%) Citrix
15 99 (18.86%) ITIL
16 98 (18.67%) Unified Communications
17 96 (18.29%) TCP/IP
18 95 (18.10%) Microsoft Office
19 91 (17.33%) VPN
19 91 (17.33%) Data Centre
20 89 (16.95%) Wireless
21 86 (16.38%) DHCP
22 83 (15.81%) CCNP
23 80 (15.24%) MS Exchange
24 78 (14.86%) VLAN
25 74 (14.10%) Problem-Solving
26 67 (12.76%) Windows 10
27 64 (12.19%) Network Security

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 80 (15.24%) MS Exchange
2 50 (9.52%) Skype for Business
3 46 (8.76%) Exchange Server 2010
4 37 (7.05%) SharePoint
5 28 (5.33%) Exchange Server 2013
6 20 (3.81%) CMS
7 18 (3.43%) Blackberry Enterprise Server
8 13 (2.48%) IIS
9 12 (2.29%) Confluence
10 8 (1.52%) nginx
10 8 (1.52%) uWSGI
11 6 (1.14%) Apache
11 6 (1.14%) SharePoint 2013
12 5 (0.95%) Exchange Server 2007
13 2 (0.38%) SharePoint Server
13 2 (0.38%) Tomcat
14 1 (0.19%) BizTalk Server
14 1 (0.19%) Exchange Server 2003
14 1 (0.19%) Joomla!
14 1 (0.19%) WordPress
Applications
1 95 (18.10%) Microsoft Office
2 14 (2.67%) MS Visio
3 10 (1.90%) Microsoft PowerPoint
4 5 (0.95%) Microsoft Excel
5 3 (0.57%) Adobe Premiere
5 3 (0.57%) LibreOffice
5 3 (0.57%) Mozilla Thunderbird
6 1 (0.19%) Microsoft Project
Business Applications
1 22 (4.19%) Dynamics CRM
2 4 (0.76%) Elite 3E
2 4 (0.76%) Sage 200
3 2 (0.38%) Dynamics NAV
4 1 (0.19%) Eikon
Cloud Services
1 125 (23.81%) Office 365
2 63 (12.00%) Microsoft Azure
3 36 (6.86%) SaaS
4 35 (6.67%) Amazon AWS
5 16 (3.05%) G Suite
6 12 (2.29%) IaaS
6 12 (2.29%) Mimecast
7 10 (1.90%) OneDrive
8 9 (1.71%) PaaS
9 6 (1.14%) Azure Active Directory
10 3 (0.57%) Cloud Computing
10 3 (0.57%) Google Cloud Platform
11 2 (0.38%) Adobe Creative Cloud
11 2 (0.38%) Amazon EC2
11 2 (0.38%) Dropbox
11 2 (0.38%) Virtual Private Cloud
12 1 (0.19%) Amazon ELB
12 1 (0.19%) FinancialForce
12 1 (0.19%) Firebase
12 1 (0.19%) OpenDNS
Communications & Networking
1 187 (35.62%) Firewall
2 150 (28.57%) WAN
3 141 (26.86%) LAN
4 126 (24.00%) DNS
5 98 (18.67%) Unified Communications
6 96 (18.29%) TCP/IP
7 91 (17.33%) VPN
8 89 (16.95%) Wireless
9 86 (16.38%) DHCP
10 78 (14.86%) VLAN
11 64 (12.19%) Network Security
12 63 (12.00%) MPLS
13 54 (10.29%) Skype
14 53 (10.10%) BGP
15 47 (8.95%) Cisco Nexus
15 47 (8.95%) IPsec
16 45 (8.57%) OSPF
17 41 (7.81%) PBX
18 40 (7.62%) Wi-Fi
19 37 (7.05%) Cisco IOS
Database & Business Intelligence
1 42 (8.00%) SQL Server
2 15 (2.86%) SQL Server 2012
2 15 (2.86%) SQL Server 2014
3 13 (2.48%) MySQL
4 11 (2.10%) SQL Server 2008
5 9 (1.71%) SQL Server 2005
6 8 (1.52%) MariaDB
7 4 (0.76%) SQL Server 2016
8 2 (0.38%) Oracle Database
8 2 (0.38%) PostgreSQL
Development Applications
1 21 (4.00%) JIRA
2 9 (1.71%) Git (software)
3 8 (1.52%) Subversion
4 3 (0.57%) VSS/SourceSafe
4 3 (0.57%) WinDbg
5 2 (0.38%) Sonatype Nexus
6 1 (0.19%) Gradle
6 1 (0.19%) Visual Studio
General
1 113 (21.52%) Finance
1 113 (21.52%) Telecoms
2 37 (7.05%) Law
3 30 (5.71%) Legal
4 22 (4.19%) Banking
5 18 (3.43%) Marketing
5 18 (3.43%) Retail
6 9 (1.71%) Manufacturing
7 6 (1.14%) Advertising
8 5 (0.95%) Back Office
9 4 (0.76%) Billing
9 4 (0.76%) Front Office
10 3 (0.57%) Games
10 3 (0.57%) Investment Banking
11 1 (0.19%) Financial Institution
11 1 (0.19%) Mandarin Language
11 1 (0.19%) Publishing
Job Titles
1 103 (19.62%) Analyst
2 89 (16.95%) Support Engineer
3 69 (13.14%) Network Engineer
4 60 (11.43%) IT Support
5 51 (9.71%) Support Analyst
6 49 (9.33%) 2nd Line Support
7 34 (6.48%) IT Engineer
8 27 (5.14%) 2nd Line Engineer
8 27 (5.14%) 2nd Line Support Engineer
8 27 (5.14%) Architect
8 27 (5.14%) Infrastructure Engineer
8 27 (5.14%) Service Analyst
9 25 (4.76%) IT Support Engineer
10 24 (4.57%) IT Analyst
11 23 (4.38%) Infrastructure Manager
12 22 (4.19%) 1st/2nd Line Support
12 22 (4.19%) IT Support Analyst
12 22 (4.19%) Team Leader
12 22 (4.19%) Voice Engineer
12 22 (4.19%) VoIP Engineer
Libraries, Frameworks & Software Standards
1 17 (3.24%) XMPP
2 15 (2.86%) LDAP
3 14 (2.67%) Middleware
4 12 (2.29%) FreeSWITCH
5 10 (1.90%) Web Services
6 8 (1.52%) Django
6 8 (1.52%) LEMP Stack
6 8 (1.52%) PHP-FPM
6 8 (1.52%) WSGI
7 7 (1.33%) 802.1X
7 7 (1.33%) Flash
7 7 (1.33%) HTML
8 6 (1.14%) CSS
9 3 (0.57%) Mason
10 2 (0.38%) OAuth
10 2 (0.38%) OAuth2
10 2 (0.38%) REST
10 2 (0.38%) RESTful
10 2 (0.38%) WebRTC
11 1 (0.19%) Visualforce
Miscellaneous
1 91 (17.33%) Data Centre
2 56 (10.67%) Analytical Skills
3 36 (6.86%) Video Conferencing
4 33 (6.29%) Management Information System
5 27 (5.14%) Blackberry
5 27 (5.14%) Self-Motivation
6 16 (3.05%) Clustering
7 15 (2.86%) Public Cloud
8 14 (2.67%) Computer Science
8 14 (2.67%) iPad
9 12 (2.29%) iPhone
9 12 (2.29%) Social Media
10 11 (2.10%) Smartphone
11 10 (1.90%) Replication
12 9 (1.71%) Linux Command Line
12 9 (1.71%) Taxonomies
13 8 (1.52%) Fat Client
13 8 (1.52%) Private Cloud
13 8 (1.52%) Thin Client
13 8 (1.52%) Wiki
Operating Systems
1 256 (48.76%) Windows
2 120 (22.86%) Windows Server
3 67 (12.76%) Windows 10
4 59 (11.24%) Linux
5 49 (9.33%) Windows 7
6 43 (8.19%) Windows Server 2008
7 36 (6.86%) Windows Server 2012
8 29 (5.52%) Android
9 24 (4.57%) Windows Server 2003
10 18 (3.43%) Mac OS X
11 15 (2.86%) Windows 8
12 11 (2.10%) Unix
12 11 (2.10%) Windows XP
13 10 (1.90%) Ubuntu
14 9 (1.71%) Apple iOS
14 9 (1.71%) Mac OS
15 8 (1.52%) Debian
15 8 (1.52%) Solaris
16 5 (0.95%) Oracle Linux
16 5 (0.95%) Windows Mobile
Processes & Methodologies
1 99 (18.86%) ITIL
2 74 (14.10%) Problem-Solving
3 55 (10.48%) CRM
4 41 (7.81%) Project Management
5 34 (6.48%) Service Management
6 32 (6.10%) Disaster Recovery
7 27 (5.14%) Change Management
8 24 (4.57%) Capacity Management
9 23 (4.38%) Cybersecurity
9 23 (4.38%) Incident Management
9 23 (4.38%) Network Architecture
9 23 (4.38%) Problem Management
10 22 (4.19%) Patch Management
11 21 (4.00%) DevOps
11 21 (4.00%) ITIL V3
11 21 (4.00%) Mentoring
11 21 (4.00%) Presales
12 20 (3.81%) High Availability
12 20 (3.81%) Line Management
13 19 (3.62%) Network Monitoring
Programming Languages
1 37 (7.05%) PowerShell
2 29 (5.52%) SQL
3 27 (5.14%) Python
4 24 (4.57%) Bash Shell
5 17 (3.24%) Perl
5 17 (3.24%) PHP
6 10 (1.90%) Java
7 8 (1.52%) C
7 8 (1.52%) VBScript
8 6 (1.14%) JavaScript
8 6 (1.14%) VB
9 5 (0.95%) MATLAB
9 5 (0.95%) Ruby
10 4 (0.76%) C++
11 3 (0.57%) Shell Script
12 2 (0.38%) C#
13 1 (0.19%) Apex Code
13 1 (0.19%) Go
13 1 (0.19%) Scala
13 1 (0.19%) T-SQL
Qualifications
1 120 (22.86%) Cisco Certification
2 83 (15.81%) CCNP
3 58 (11.05%) CCNA
4 46 (8.76%) Degree
5 35 (6.67%) CCIE
5 35 (6.67%) Microsoft Certification
6 25 (4.76%) MCSE
7 19 (3.62%) ITIL Certification
8 16 (3.05%) CCVP
9 13 (2.48%) MCITP
10 12 (2.29%) VMware Certified Professional (VCP)
11 9 (1.71%) CCSE
12 8 (1.52%) TOGAF Certification
13 7 (1.33%) CCSP
13 7 (1.33%) CISSP
14 6 (1.14%) CCA
14 6 (1.14%) CCSA
14 6 (1.14%) CISA
14 6 (1.14%) Citrix Certification
14 6 (1.14%) PRINCE2 Practitioner
Quality Assurance & Compliance
1 29 (5.52%) SLA
2 19 (3.62%) ISO/IEC 27001
3 17 (3.24%) Cyber Essentials
3 17 (3.24%) PCI DSS
4 11 (2.10%) Cyber Essentials PLUS
5 9 (1.71%) GDPR
5 9 (1.71%) QA
6 7 (1.33%) PMO
7 5 (0.95%) COBIT
8 2 (0.38%) Sarbanes-Oxley
9 1 (0.19%) HIPAA
9 1 (0.19%) Solvency II
System Software
1 209 (39.81%) Active Directory
2 121 (23.05%) VMware Infrastructure
3 41 (7.81%) XenApp
4 37 (7.05%) Hyper-V
5 16 (3.05%) Virtual Machines
6 12 (2.29%) Kamailio
6 12 (2.29%) VMware ESXi
6 12 (2.29%) vSphere
7 9 (1.71%) Terminal Services
8 8 (1.52%) BIND 9
8 8 (1.52%) Postfix
8 8 (1.52%) Virtual Servers
9 6 (1.14%) VMware Workstation
9 6 (1.14%) XenDesktop
10 4 (0.76%) Microsoft App-V
11 3 (0.57%) DFS Replication
11 3 (0.57%) Docker
11 3 (0.57%) VMware Server
11 3 (0.57%) Xen
12 2 (0.38%) iptables
Systems Management
1 55 (10.48%) SCCM
2 54 (10.29%) Cisco CUCM
3 20 (3.81%) Cisco UCCX
4 18 (3.43%) Backup Exec
4 18 (3.43%) Nagios
5 15 (2.86%) Cisco UCCE
5 15 (2.86%) FortiGate
5 15 (2.86%) SCOM
6 13 (2.48%) Cacti
7 12 (2.29%) Puppet
8 8 (1.52%) Ansible
8 8 (1.52%) HAProxy
8 8 (1.52%) Munin
9 7 (1.33%) AirWatch
9 7 (1.33%) Norton AntiVirus
10 5 (0.95%) BladeLogic
10 5 (0.95%) Control-M
10 5 (0.95%) Oracle Enterprise Manager
10 5 (0.95%) QRadar
10 5 (0.95%) vCenter Server
Vendors
1 234 (44.57%) Cisco
2 223 (42.48%) Microsoft
3 142 (27.05%) VMware
4 108 (20.57%) Citrix
5 52 (9.90%) HP
6 41 (7.81%) Apple
7 36 (6.86%) Palo Alto
8 33 (6.29%) Veeam
9 31 (5.90%) Dell
10 29 (5.52%) CheckPoint
10 29 (5.52%) Juniper
11 27 (5.14%) Avaya
12 26 (4.95%) Mitel
13 24 (4.57%) Salesforce.com
14 22 (4.19%) Riverbed
15 21 (4.00%) iManage
16 20 (3.81%) Google
17 18 (3.43%) NetApp
17 18 (3.43%) SolarWinds
18 16 (3.05%) Meraki