Period
to 21 October 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 21 October 2018 with a comparison to the same period in the previous 2 years.

Voice Over IP (VoIP)
London > Central London
6 months to
21 Oct 2018
Same period 2017 Same period 2016
Rank 293 243 224
Rank change year-on-year -50 -19 +48
Permanent jobs citing VoIP 109 129 189
As % of all permanent IT jobs advertised in Central London 0.77% 1.05% 1.27%
As % of the Communications & Networking category 5.79% 6.28% 8.27%
Number of salaries quoted 94 121 172
Central London median annual salary £55,000 £50,000 £52,500
Median salary % change year-on-year +10.00% -4.76% +19.32%
10th Percentile £28,250 £31,625 £31,250
90th Percentile £75,875 £72,500 £78,750
London median annual salary £47,500 £51,500 £45,000
% change year-on-year -7.77% +14.44% -

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 1,881 2,055 2,284
As % of all permanent IT jobs advertised in Central London 13.37% 16.65% 15.39%
Number of salaries quoted 1,674 1,833 1,945
Central London median annual salary £55,000 £52,500 £52,500
Median salary % change year-on-year +4.76% - +5.00%
10th Percentile £31,250 £29,810 £30,750
90th Percentile £85,000 £78,750 £77,500
London median annual salary £55,000 £55,000 £54,000
% change year-on-year - +1.85% +8.00%

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 21 October 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 21 October 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 -51 80 £55,000 - 10
West End of London -15 7 £43,750 -12.50% 3
City of Westminster +4 2 £33,000 -34.00% 1
Southwark - 1 £30,000 -
VoIP
London

For the 6 months to 21 October 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 (54.13%) Windows
2 49 (44.95%) Office 365
3 42 (38.53%) Cisco
4 41 (37.61%) Microsoft
5 38 (34.86%) WAN
6 37 (33.94%) LAN
7 35 (32.11%) VPN
8 34 (31.19%) Active Directory
9 33 (30.28%) Firewall
10 30 (27.52%) ITIL
11 28 (25.69%) Windows 10
12 26 (23.85%) TCP/IP
12 26 (23.85%) VMware
13 25 (22.94%) Citrix
14 23 (21.10%) MS Exchange
14 23 (21.10%) Windows 7
15 21 (19.27%) Microsoft Office
16 20 (18.35%) Internet
17 19 (17.43%) Unified Communications
18 18 (16.51%) Windows Server
18 18 (16.51%) Cisco Certification
19 17 (15.60%) Linux
19 17 (15.60%) Data Centre
19 17 (15.60%) VMware Infrastructure
20 16 (14.68%) Skype for Business
20 16 (14.68%) CCNP
21 15 (13.76%) Finance
21 15 (13.76%) Infrastructure Engineering
22 14 (12.84%) Skype
22 14 (12.84%) Legal

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 23 (21.10%) MS Exchange
2 16 (14.68%) Skype for Business
3 8 (7.34%) Exchange Server 2010
3 8 (7.34%) SharePoint
4 5 (4.59%) Exchange Server 2013
5 3 (2.75%) IIS
6 2 (1.83%) Apache
6 2 (1.83%) nginx
6 2 (1.83%) OpenStack
7 1 (0.92%) Blackberry Enterprise Server
7 1 (0.92%) CMS
7 1 (0.92%) JBoss
7 1 (0.92%) SharePoint Server
7 1 (0.92%) Tomcat
Applications
1 21 (19.27%) Microsoft Office
2 4 (3.67%) Microsoft Excel
2 4 (3.67%) Microsoft PowerPoint
3 3 (2.75%) MS Visio
4 1 (0.92%) Adobe Creative Suite
Business Applications
1 2 (1.83%) Dynamics CRM
2 1 (0.92%) Carpe Diem
2 1 (0.92%) Dynamics NAV
2 1 (0.92%) Maximo
2 1 (0.92%) Unit4 Business World
Cloud Services
1 49 (44.95%) Office 365
2 12 (11.01%) Microsoft Azure
3 11 (10.09%) Amazon AWS
4 9 (8.26%) G Suite
5 4 (3.67%) Cloud Computing
5 4 (3.67%) SaaS
6 2 (1.83%) Amazon EC2
6 2 (1.83%) Amazon S3
7 1 (0.92%) Amazon CloudWatch
7 1 (0.92%) AWS CloudFormation
7 1 (0.92%) OneDrive
Communications & Networking
1 38 (34.86%) WAN
2 37 (33.94%) LAN
3 35 (32.11%) VPN
4 33 (30.28%) Firewall
5 26 (23.85%) TCP/IP
6 20 (18.35%) Internet
7 19 (17.43%) Unified Communications
8 14 (12.84%) MPLS
8 14 (12.84%) Skype
9 12 (11.01%) Wireless
10 11 (10.09%) BGP
11 10 (9.17%) Ethernet
12 9 (8.26%) IPsec
13 8 (7.34%) OSPF
14 7 (6.42%) Cisco Nexus
14 7 (6.42%) Intrusion Detection
14 7 (6.42%) Spanning Tree
15 6 (5.50%) EIGRP
15 6 (5.50%) Telepresence
15 6 (5.50%) VLAN
Database & Business Intelligence
1 6 (5.50%) SQL Server
2 3 (2.75%) MySQL
3 2 (1.83%) Amazon RDS
3 2 (1.83%) Data Warehouse
4 1 (0.92%) Big Data
4 1 (0.92%) DB2
4 1 (0.92%) Hadoop
4 1 (0.92%) PostgreSQL
4 1 (0.92%) Redis
4 1 (0.92%) SQL Server 2008
Development Applications
1 3 (2.75%) VSS/SourceSafe
2 2 (1.83%) JIRA
3 1 (0.92%) Sonatype Nexus
General
1 15 (13.76%) Finance
2 14 (12.84%) Legal
3 9 (8.26%) Telecoms
4 6 (5.50%) Law
5 4 (3.67%) Marketing
6 3 (2.75%) Pharmaceutical
7 2 (1.83%) Financial Institution
8 1 (0.92%) Advertising
8 1 (0.92%) Banking
8 1 (0.92%) French Language
8 1 (0.92%) Manufacturing
8 1 (0.92%) Retail
Job Titles
1 21 (19.27%) Analyst
2 19 (17.43%) Support Engineer
3 15 (13.76%) Network Engineer
4 12 (11.01%) Infrastructure Engineer
4 12 (11.01%) Support Analyst
5 10 (9.17%) 2nd Line Support
6 9 (8.26%) IT Support
7 8 (7.34%) Desktop Support
7 8 (7.34%) Senior Network Engineer
7 8 (7.34%) Voice Engineer
8 7 (6.42%) 3rd Line Support
8 7 (6.42%) Cloud Engineer
8 7 (6.42%) IT Engineer
9 5 (4.59%) 2nd Line Support Analyst
9 5 (4.59%) Desktop Analyst
9 5 (4.59%) Desktop Support Analyst
9 5 (4.59%) IT Trainer
9 5 (4.59%) Presales Engineer
9 5 (4.59%) Trainer
10 4 (3.67%) Infrastructure Support Engineer
Libraries, Frameworks & Software Standards
1 6 (5.50%) 802.1X
1 6 (5.50%) Middleware
2 5 (4.59%) XMPP
3 3 (2.75%) Software Packaging
4 2 (1.83%) Elastic Stack
5 1 (0.92%) LAMP
5 1 (0.92%) Node.js
5 1 (0.92%) React
5 1 (0.92%) REST
5 1 (0.92%) SOAP
5 1 (0.92%) XML
5 1 (0.92%) X-Windows
Miscellaneous
1 17 (15.60%) Data Centre
2 11 (10.09%) Computer Science
3 8 (7.34%) Data Structures
4 7 (6.42%) Algorithms
5 5 (4.59%) Fintech
5 5 (4.59%) Management Information System
6 4 (3.67%) Analytical Skills
6 4 (3.67%) IVR
6 4 (3.67%) Self-Motivation
6 4 (3.67%) Video Conferencing
7 3 (2.75%) BYOD
8 2 (1.83%) iPad
8 2 (1.83%) iPhone
9 1 (0.92%) EPoS
9 1 (0.92%) iSeries
9 1 (0.92%) Mainframe
9 1 (0.92%) Photography
9 1 (0.92%) PKI
9 1 (0.92%) PMI
9 1 (0.92%) Smartphone
Operating Systems
1 59 (54.13%) Windows
2 28 (25.69%) Windows 10
3 23 (21.10%) Windows 7
4 18 (16.51%) Windows Server
5 17 (15.60%) Linux
6 11 (10.09%) Windows Server 2012
7 10 (9.17%) Windows Server 2008
8 7 (6.42%) Mac OS X
9 6 (5.50%) Apple iOS
9 6 (5.50%) Mac OS
10 4 (3.67%) Windows 8
11 3 (2.75%) Unix
12 2 (1.83%) Windows Server 2003
13 1 (0.92%) Android
13 1 (0.92%) Data ONTAP
13 1 (0.92%) HPUX
13 1 (0.92%) Mac OS X Server
13 1 (0.92%) Red Hat Enterprise Linux
13 1 (0.92%) Solaris
13 1 (0.92%) zOS
Processes & Methodologies
1 30 (27.52%) ITIL
2 15 (13.76%) Infrastructure Engineering
3 11 (10.09%) Service Delivery
4 10 (9.17%) Kalman Filter
4 10 (9.17%) Problem-Solving
4 10 (9.17%) Project Management
5 9 (8.26%) High Availability
5 9 (8.26%) Information Security
5 9 (8.26%) Load Balancing
5 9 (8.26%) Security Architecture
6 8 (7.34%) Capacity Management
6 8 (7.34%) Network Design
6 8 (7.34%) SIEM
7 7 (6.42%) Ethical Hacking
7 7 (6.42%) Presales
7 7 (6.42%) Security Operations
8 6 (5.50%) ITSM
9 5 (4.59%) Change Management
9 5 (4.59%) Disaster Recovery
9 5 (4.59%) Identity Management
Programming Languages
1 4 (3.67%) C
2 3 (2.75%) Python
2 3 (2.75%) SQL
3 2 (1.83%) Perl
3 2 (1.83%) PowerShell
4 1 (0.92%) Bash Shell
4 1 (0.92%) C++
4 1 (0.92%) Go
4 1 (0.92%) Java
4 1 (0.92%) JavaScript
4 1 (0.92%) PHP
4 1 (0.92%) VB
Qualifications
1 18 (16.51%) Cisco Certification
2 16 (14.68%) CCNP
3 14 (12.84%) Microsoft Certification
4 9 (8.26%) CCNA
4 9 (8.26%) Degree
5 8 (7.34%) MCSA
5 8 (7.34%) MCSE
6 7 (6.42%) CEH
6 7 (6.42%) CISM
6 7 (6.42%) CISSP
6 7 (6.42%) SANS
7 6 (5.50%) CCIE
8 4 (3.67%) CCVP
9 3 (2.75%) Computer Science Degree
10 2 (1.83%) AWS Certification
10 2 (1.83%) CCSP
10 2 (1.83%) HNC
10 2 (1.83%) HND
10 2 (1.83%) ITIL Certification
10 2 (1.83%) MCITP
Quality Assurance & Compliance
1 11 (10.09%) ISO/IEC 27001
2 8 (7.34%) Cyber Essentials
2 8 (7.34%) Cyber Essentials PLUS
3 5 (4.59%) SLA
4 3 (2.75%) GDPR
5 2 (1.83%) COBIT
5 2 (1.83%) Sarbanes-Oxley
5 2 (1.83%) Solvency II
6 1 (0.92%) ISO 22301
6 1 (0.92%) PCI DSS
System Software
1 34 (31.19%) Active Directory
2 17 (15.60%) VMware Infrastructure
3 5 (4.59%) Virtual Desktop
4 4 (3.67%) XenApp
5 3 (2.75%) Hyper-V
5 3 (2.75%) XenDesktop
6 2 (1.83%) vSphere
7 1 (0.92%) BitLocker
7 1 (0.92%) Docker
7 1 (0.92%) Virtual Machines
7 1 (0.92%) Virtual Servers
Systems Management
1 13 (11.93%) Cisco CUCM
2 6 (5.50%) Jamf Pro
2 6 (5.50%) SCCM
3 5 (4.59%) Microsoft Intune
4 3 (2.75%) FortiGate
4 3 (2.75%) Nagios
5 2 (1.83%) Ansible
5 2 (1.83%) Norton AntiVirus
5 2 (1.83%) WSUS
6 1 (0.92%) Cacti
6 1 (0.92%) Graylog
6 1 (0.92%) Kubernetes
6 1 (0.92%) MaaS360
6 1 (0.92%) RANCID
6 1 (0.92%) ZABBIX
Vendors
1 42 (38.53%) Cisco
2 41 (37.61%) Microsoft
3 26 (23.85%) VMware
4 25 (22.94%) Citrix
5 9 (8.26%) Avaya
5 9 (8.26%) Palo Alto
6 5 (4.59%) HP
6 5 (4.59%) iManage
6 5 (4.59%) Intapp
6 5 (4.59%) Meraki
6 5 (4.59%) Okta
7 4 (3.67%) Aderant
7 4 (3.67%) F5
7 4 (3.67%) ShoreTel
8 3 (2.75%) Apple
8 3 (2.75%) Google
8 3 (2.75%) Ivanti
8 3 (2.75%) Mitel
8 3 (2.75%) Remedy
8 3 (2.75%) Symantec