Period
to 19 August 2018

The following table provides summary statistics for permanent job vacancies advertised in Central 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 19 August 2018 with a comparison to the same period in the previous 2 years.

Voice Over IP (VoIP)
London > Central London
6 months to
19 Aug 2018
Same period 2017 Same period 2016
Rank 283 228 206
Rank change year-on-year -55 -22 +43
Permanent jobs citing VoIP 116 159 244
As % of all permanent IT jobs advertised in Central London 0.82% 1.27% 1.50%
As % of the Communications & Networking category 5.58% 7.56% 9.70%
Number of salaries quoted 100 144 211
Central London median annual salary £55,000 £48,750 £50,000
Median salary % change year-on-year +12.82% -2.50% +5.26%
10th Percentile £27,375 £31,000 £31,000
90th Percentile £75,000 £76,750 £75,000
London median annual salary £45,000 £48,500 £45,000
% change year-on-year -7.22% +7.78% -

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 Central London with a requirement for communications or computer networking skills.

All Communications and Computer Networking Skills
Central London
Permanent vacancies with a requirement for communications or computer networking skills 2,078 2,102 2,516
As % of all permanent IT jobs advertised in Central London 14.75% 16.80% 15.49%
Number of salaries quoted 1,843 1,891 2,128
Central London median annual salary £55,000 £50,500 £52,500
Median salary % change year-on-year +8.91% -3.81% +5.00%
10th Percentile £31,250 £28,000 £30,500
90th Percentile £82,500 £77,500 £77,500
London median annual salary £55,000 £52,500 £52,500
% change year-on-year +4.76% - +5.00%

VoIP
Job Vacancy Trend in Central London

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

Job vacancy trend for VoIP in Central London

VoIP
Salary Trend in Central London

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

Salary trend for VoIP in Central London

VoIP
Salary Histogram in Central London

The salary distribution of IT jobs citing VoIP in Central London over the 6 months to 19 August 2018.

Salary histogram for VoIP in Central London

VoIP
Job Locations in Central London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing VoIP within the Central London region over the 6 months to 19 August 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
City of London -64 78 £57,500 +4.55% 15
West End of London -12 12 £50,000 +5.26% 3
City of Westminster +7 2 £33,000 -34.00%
VoIP
London

For the 6 months to 19 August 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 Central London region with a requirement for VoIP.

1 59 (50.86%) Cisco
2 52 (44.83%) Office 365
3 51 (43.97%) Windows
4 44 (37.93%) Microsoft
4 44 (37.93%) WAN
5 41 (35.34%) LAN
6 32 (27.59%) VPN
6 32 (27.59%) Active Directory
6 32 (27.59%) ITIL
7 31 (26.72%) Unified Communications
8 28 (24.14%) Microsoft Office
9 27 (23.28%) VMware
10 25 (21.55%) Finance
10 25 (21.55%) Skype for Business
10 25 (21.55%) Cisco CUCM
11 24 (20.69%) Windows 10
11 24 (20.69%) Firewall
11 24 (20.69%) Citrix
12 23 (19.83%) TCP/IP
13 22 (18.97%) Cisco Certification
13 22 (18.97%) ISO/IEC 27001
13 22 (18.97%) Skype
14 21 (18.10%) Legal
15 20 (17.24%) VMware Infrastructure
15 20 (17.24%) Windows 7
16 19 (16.38%) Capacity Management
16 19 (16.38%) Cyber Essentials
16 19 (16.38%) Cyber Essentials PLUS
16 19 (16.38%) CCNP
17 17 (14.66%) MS Exchange

VoIP
Co-occurring IT Skills in Central 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 25 (21.55%) Skype for Business
2 17 (14.66%) MS Exchange
3 6 (5.17%) SharePoint
4 5 (4.31%) Exchange Server 2010
5 4 (3.45%) Exchange Server 2013
6 1 (0.86%) Apache
6 1 (0.86%) Blackberry Enterprise Server
6 1 (0.86%) IIS
6 1 (0.86%) nginx
6 1 (0.86%) SharePoint Server
Applications
1 28 (24.14%) Microsoft Office
2 3 (2.59%) MS Visio
3 2 (1.72%) Microsoft Excel
4 1 (0.86%) Adobe Creative Suite
Business Applications
1 2 (1.72%) Dynamics CRM
2 1 (0.86%) Carpe Diem
2 1 (0.86%) Dynamics NAV
2 1 (0.86%) Maximo
2 1 (0.86%) Unit4 Business World
Cloud Services
1 52 (44.83%) Office 365
2 9 (7.76%) Amazon AWS
3 8 (6.90%) G Suite
3 8 (6.90%) Microsoft Azure
4 3 (2.59%) SaaS
5 2 (1.72%) Cloud Computing
6 1 (0.86%) Amazon CloudWatch
6 1 (0.86%) Amazon EC2
6 1 (0.86%) Amazon S3
6 1 (0.86%) AWS CloudFormation
Communications & Networking
1 44 (37.93%) WAN
2 41 (35.34%) LAN
3 32 (27.59%) VPN
4 31 (26.72%) Unified Communications
5 24 (20.69%) Firewall
6 23 (19.83%) TCP/IP
7 22 (18.97%) Skype
8 16 (13.79%) BGP
9 15 (12.93%) Internet
10 14 (12.07%) IP Telephony
11 13 (11.21%) OSPF
12 12 (10.34%) PBX
13 11 (9.48%) DNS
13 11 (9.48%) MPLS
14 9 (7.76%) DHCP
14 9 (7.76%) Ethernet
15 8 (6.90%) H.323
15 8 (6.90%) Spanning Tree
16 7 (6.03%) Cisco Nexus
16 7 (6.03%) NetScaler
Database & Business Intelligence
1 7 (6.03%) SQL Server
2 4 (3.45%) MySQL
3 2 (1.72%) Data Warehouse
4 1 (0.86%) Amazon RDS
4 1 (0.86%) Big Data
4 1 (0.86%) DB2
4 1 (0.86%) Hadoop
4 1 (0.86%) PostgreSQL
4 1 (0.86%) SQL Server 2008
Development Applications
1 3 (2.59%) VSS/SourceSafe
2 2 (1.72%) Sonatype Nexus
2 2 (1.72%) WinDbg
3 1 (0.86%) JIRA
General
1 25 (21.55%) Finance
2 21 (18.10%) Legal
3 8 (6.90%) Law
4 4 (3.45%) Marketing
5 3 (2.59%) Banking
5 3 (2.59%) Front Office
5 3 (2.59%) Pharmaceutical
5 3 (2.59%) Telecoms
6 2 (1.72%) Investment Banking
7 1 (0.86%) Financial Institution
7 1 (0.86%) French Language
7 1 (0.86%) Manufacturing
7 1 (0.86%) Retail
Job Titles
1 36 (31.03%) Analyst
2 16 (13.79%) Support Engineer
3 15 (12.93%) Support Analyst
4 14 (12.07%) Network Engineer
5 12 (10.34%) 2nd Line Support
6 9 (7.76%) Desktop Support
7 8 (6.90%) IT Support
7 8 (6.90%) Voice Engineer
8 7 (6.03%) Infrastructure Engineer
8 7 (6.03%) Senior Network Engineer
8 7 (6.03%) Service Analyst
9 6 (5.17%) 2nd Line Engineer
9 6 (5.17%) 2nd Line Support Engineer
9 6 (5.17%) Cisco Engineer
9 6 (5.17%) Cloud Engineer
10 5 (4.31%) 2nd Line Support Analyst
10 5 (4.31%) Security Engineer
11 4 (3.45%) Firewall Engineer
11 4 (3.45%) Presales Engineer
11 4 (3.45%) Senior Voice Engineer
Libraries, Frameworks & Software Standards
1 8 (6.90%) 802.1X
2 6 (5.17%) Middleware
3 4 (3.45%) XMPP
4 3 (2.59%) Software Packaging
5 2 (1.72%) React
6 1 (0.86%) LAMP
6 1 (0.86%) X-Windows
Miscellaneous
1 16 (13.79%) Data Centre
2 10 (8.62%) Computer Science
3 7 (6.03%) Algorithms
3 7 (6.03%) Analytical Skills
3 7 (6.03%) Data Structures
4 5 (4.31%) Management Information System
4 5 (4.31%) Self-Motivation
5 3 (2.59%) BYOD
5 3 (2.59%) Fintech
5 3 (2.59%) IVR
5 3 (2.59%) Video Conferencing
5 3 (2.59%) Virtual Team
6 2 (1.72%) Hedge funds
6 2 (1.72%) iPhone
7 1 (0.86%) CMDB
7 1 (0.86%) Enterprise Cloud
7 1 (0.86%) Hybrid Cloud
7 1 (0.86%) iPad
7 1 (0.86%) iSeries
7 1 (0.86%) Linux Command Line
Operating Systems
1 51 (43.97%) Windows
2 24 (20.69%) Windows 10
3 20 (17.24%) Windows 7
4 16 (13.79%) Windows Server
5 12 (10.34%) Linux
6 8 (6.90%) Mac OS X
6 8 (6.90%) Windows Server 2008
7 7 (6.03%) Mac OS
7 7 (6.03%) Windows Server 2012
8 4 (3.45%) Windows 8
9 2 (1.72%) Apple iOS
9 2 (1.72%) Windows Server 2003
10 1 (0.86%) Android
10 1 (0.86%) HPUX
10 1 (0.86%) Mac OS X Server
10 1 (0.86%) Solaris
10 1 (0.86%) Unix
10 1 (0.86%) zOS
Processes & Methodologies
1 32 (27.59%) ITIL
2 19 (16.38%) Capacity Management
3 11 (9.48%) Problem-Solving
4 9 (7.76%) Information Security
4 9 (7.76%) Infrastructure Engineering
4 9 (7.76%) Security Architecture
5 8 (6.90%) Kalman Filter
5 8 (6.90%) Project Management
5 8 (6.90%) SIEM
6 7 (6.03%) Ethical Hacking
6 7 (6.03%) High Availability
6 7 (6.03%) Load Balancing
6 7 (6.03%) Presales
6 7 (6.03%) Problem Management
6 7 (6.03%) Security Operations
7 6 (5.17%) Change Management
7 6 (5.17%) CRM
7 6 (5.17%) Network Design
7 6 (5.17%) Service Delivery
8 5 (4.31%) ITSM
Programming Languages
1 5 (4.31%) PowerShell
2 3 (2.59%) SQL
3 2 (1.72%) Bash Shell
3 2 (1.72%) C
3 2 (1.72%) C++
3 2 (1.72%) Go
3 2 (1.72%) JavaScript
3 2 (1.72%) VBScript
4 1 (0.86%) Perl
4 1 (0.86%) PHP
4 1 (0.86%) Python
Qualifications
1 22 (18.97%) Cisco Certification
2 19 (16.38%) CCNP
3 15 (12.93%) Microsoft Certification
4 9 (7.76%) MCSA
5 8 (6.90%) Degree
6 7 (6.03%) CCIE
6 7 (6.03%) CCNA
6 7 (6.03%) CEH
6 7 (6.03%) CISM
6 7 (6.03%) CISSP
6 7 (6.03%) MCSE
6 7 (6.03%) SANS
7 4 (3.45%) CCVP
8 3 (2.59%) CCSE
8 3 (2.59%) CCSP
8 3 (2.59%) ITIL Foundation Certificate
8 3 (2.59%) MCP
9 2 (1.72%) HNC
9 2 (1.72%) HND
9 2 (1.72%) Security Cleared
Quality Assurance & Compliance
1 22 (18.97%) ISO/IEC 27001
2 19 (16.38%) Cyber Essentials
2 19 (16.38%) Cyber Essentials PLUS
3 6 (5.17%) SLA
4 3 (2.59%) GDPR
5 1 (0.86%) ISO 22301
5 1 (0.86%) PCI DSS
System Software
1 32 (27.59%) Active Directory
2 20 (17.24%) VMware Infrastructure
3 5 (4.31%) Virtual Desktop
4 4 (3.45%) XenApp
5 3 (2.59%) Virtual Machines
5 3 (2.59%) XenDesktop
6 2 (1.72%) Docker
7 1 (0.86%) Virtual Servers
Systems Management
1 25 (21.55%) Cisco CUCM
2 11 (9.48%) SCCM
3 7 (6.03%) Jamf Pro
4 5 (4.31%) Microsoft Intune
5 4 (3.45%) Cisco UCCX
6 3 (2.59%) Cacti
7 2 (1.72%) Ansible
7 2 (1.72%) Kubernetes
7 2 (1.72%) Nagios
7 2 (1.72%) Norton AntiVirus
7 2 (1.72%) Perfmon
8 1 (0.86%) AirWatch
8 1 (0.86%) CA Spectrum
8 1 (0.86%) WSUS
Vendors
1 59 (50.86%) Cisco
2 44 (37.93%) Microsoft
3 27 (23.28%) VMware
4 24 (20.69%) Citrix
5 7 (6.03%) Fortinet
5 7 (6.03%) Palo Alto
6 6 (5.17%) F5
6 6 (5.17%) Juniper
7 5 (4.31%) Avaya
7 5 (4.31%) iManage
7 5 (4.31%) Meraki
7 5 (4.31%) Okta
8 4 (3.45%) Bloomberg
8 4 (3.45%) CheckPoint
8 4 (3.45%) Google
8 4 (3.45%) Reuters
9 3 (2.59%) HP
9 3 (2.59%) Ivanti
9 3 (2.59%) Remedy
9 3 (2.59%) Symantec