Job Vacancy Trend Salary Trend Salary Histogram Skill Sets
Period
to 21 April 2019

The following table provides summary statistics for permanent job vacancies advertised in the City of 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 April 2019 with a comparison to the same period in the previous 2 years.

Voice Over IP (VoIP)
Central London > City of London
6 months to
21 Apr 2019		 Same period 2018 Same period 2017
Rank 248 272 207
Rank change year-on-year +24 -65 +3
Permanent jobs citing VoIP 83 72 136
As % of all permanent IT jobs advertised in the City of London 0.81% 0.67% 1.31%
As % of the Communications & Networking category 6.30% 4.35% 7.87%
Number of salaries quoted 67 66 121
City of London median annual salary £37,500 £45,250 £47,500
Median salary % change year-on-year -17.13% -4.74% +0.26%
10th Percentile £27,100 £23,500 £24,500
90th Percentile £68,000 £67,500 £77,500
Central London median annual salary £35,000 £45,000 £45,000
% change year-on-year -22.22% - -1.10%

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 the City of London with a requirement for communications or computer networking skills.

All Communications and Computer Networking Skills
City of London
Permanent vacancies with a requirement for communications or computer networking skills 1,318 1,657 1,727
As % of all permanent IT jobs advertised in the City of London 12.89% 15.33% 16.65%
Number of salaries quoted 1,186 1,480 1,582
City of London median annual salary £60,000 £55,000 £55,000
Median salary % change year-on-year +9.09% - +4.76%
10th Percentile £30,000 £31,250 £28,500
90th Percentile £92,500 £83,750 £81,175
Central London median annual salary £55,000 £55,000 £52,500
% change year-on-year - +4.76% -

VoIP
Job Vacancy Trend in the City of London

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

Job vacancy trend for VoIP in the City of London

VoIP
Salary Trend in the City of London

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

Salary trend for VoIP in the City of London

VoIP
Salary Histogram in the City of London

The salary distribution of IT jobs citing VoIP in the City of London over the 6 months to 21 April 2019.

Salary histogram for VoIP in the City of London

For the 6 months to 21 April 2019, 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 City of London region with a requirement for VoIP.

1 59 (71.08%) Windows
2 56 (67.47%) Active Directory
3 54 (65.06%) Microsoft
4 50 (60.24%) Office 365
5 41 (49.40%) Firewall
6 40 (48.19%) Windows 10
7 38 (45.78%) Microsoft Office
8 35 (42.17%) VMware
9 33 (39.76%) VMware Infrastructure
10 32 (38.55%) Windows Server
11 30 (36.14%) Cisco
12 25 (30.12%) TCP/IP
13 24 (28.92%) LAN
14 23 (27.71%) DNS
14 23 (27.71%) DHCP
15 22 (26.51%) WAN
16 21 (25.30%) Problem-Solving
17 19 (22.89%) Microsoft Azure
18 17 (20.48%) Finance
18 17 (20.48%) PBX
18 17 (20.48%) MS Exchange
18 17 (20.48%) SharePoint
18 17 (20.48%) ITIL
18 17 (20.48%) Amazon AWS
18 17 (20.48%) iPhone
19 16 (19.28%) Windows 7
19 16 (19.28%) Windows Server 2012
20 15 (18.07%) Windows Server 2008
21 14 (16.87%) Video Conferencing
21 14 (16.87%) iPad

VoIP
Co-occurring IT Skills in the City of 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 17 (20.48%) MS Exchange
1 17 (20.48%) SharePoint
2 12 (14.46%) Skype for Business
3 11 (13.25%) Exchange Server 2010
4 6 (7.23%) IIS
5 3 (3.61%) Exchange Server 2007
5 3 (3.61%) Exchange Server 2013
6 1 (1.20%) Apache
6 1 (1.20%) IBM Notes
6 1 (1.20%) Tomcat
Applications
1 38 (45.78%) Microsoft Office
2 5 (6.02%) Microsoft PowerPoint
3 2 (2.41%) MS Visio
Cloud Services
1 50 (60.24%) Office 365
2 19 (22.89%) Microsoft Azure
3 17 (20.48%) Amazon AWS
4 13 (15.66%) Azure Active Directory
5 3 (3.61%) SaaS
6 1 (1.20%) Amazon EC2
6 1 (1.20%) Amazon S3
6 1 (1.20%) AWS Fargate
6 1 (1.20%) Azure ExpressRoute
6 1 (1.20%) Virtual Private Cloud
Communications & Networking
1 41 (49.40%) Firewall
2 25 (30.12%) TCP/IP
3 24 (28.92%) LAN
4 23 (27.71%) DHCP
4 23 (27.71%) DNS
5 22 (26.51%) WAN
6 17 (20.48%) PBX
7 13 (15.66%) MPLS
8 12 (14.46%) Skype
9 10 (12.05%) VPN
10 8 (9.64%) Internet
10 8 (9.64%) SAN
10 8 (9.64%) VLAN
11 7 (8.43%) Unified Communications
12 6 (7.23%) H.323
12 6 (7.23%) Wireless
13 5 (6.02%) ISDN
13 5 (6.02%) Wi-Fi
13 5 (6.02%) Wireshark
14 4 (4.82%) Remote Desktop
Database & Business Intelligence
1 9 (10.84%) SQL Server
2 3 (3.61%) SQL Server 2005
2 3 (3.61%) SQL Server 2008
2 3 (3.61%) SQL Server 2012
3 1 (1.20%) Amazon RDS
Development Applications
1 1 (1.20%) Git (software)
1 1 (1.20%) Jenkins
1 1 (1.20%) JIRA
General
1 17 (20.48%) Finance
2 14 (16.87%) Telecoms
3 4 (4.82%) Law
4 3 (3.61%) Multimedia
4 3 (3.61%) Retail
5 2 (2.41%) Advertising
5 2 (2.41%) Pharmaceutical
6 1 (1.20%) Marketing
Job Titles
1 24 (28.92%) IT Support
2 21 (25.30%) Analyst
3 18 (21.69%) Support Engineer
4 17 (20.48%) Support Analyst
5 14 (16.87%) IT Analyst
6 13 (15.66%) Desktop Support
7 12 (14.46%) 2nd Line Support
7 12 (14.46%) Infrastructure Engineer
8 11 (13.25%) IT Engineer
8 11 (13.25%) IT Support Analyst
8 11 (13.25%) Network Engineer
9 10 (12.05%) Desktop Analyst
9 10 (12.05%) IT Manager
10 9 (10.84%) Desktop Support Analyst
10 9 (10.84%) IT Support Engineer
11 8 (9.64%) Windows Support Analyst
12 7 (8.43%) Network Support
12 7 (8.43%) Network Support Engineer
13 6 (7.23%) Cisco Engineer
13 6 (7.23%) Cisco Network Engineer
Libraries, Frameworks & Software Standards
1 3 (3.61%) 802.1X
1 3 (3.61%) HTML
1 3 (3.61%) Web Services
2 1 (1.20%) Elastic Stack
2 1 (1.20%) LDAP
2 1 (1.20%) REST
2 1 (1.20%) SAML
2 1 (1.20%) XMPP
Miscellaneous
1 17 (20.48%) iPhone
2 14 (16.87%) iPad
2 14 (16.87%) Self-Motivation
2 14 (16.87%) Video Conferencing
3 11 (13.25%) Analytical Skills
4 9 (10.84%) Management Information System
5 4 (4.82%) Blackberry
6 3 (3.61%) Microsoft Licensing
7 2 (2.41%) Client/Server
7 2 (2.41%) Data Centre
7 2 (2.41%) Driving Licence
8 1 (1.20%) Clustering
8 1 (1.20%) Distributed Denial-of-Service
8 1 (1.20%) EMC VNX
8 1 (1.20%) Foreign Exchange (FX)
8 1 (1.20%) Smartphone
8 1 (1.20%) User Experience
Operating Systems
1 59 (71.08%) Windows
2 40 (48.19%) Windows 10
3 32 (38.55%) Windows Server
4 16 (19.28%) Windows 7
4 16 (19.28%) Windows Server 2012
5 15 (18.07%) Windows Server 2008
6 14 (16.87%) Linux
7 10 (12.05%) Apple iOS
8 8 (9.64%) Mac OS X
9 7 (8.43%) Windows 8
10 5 (6.02%) Android
11 4 (4.82%) Windows XP
12 3 (3.61%) Mac OS
13 1 (1.20%) CentOS
Processes & Methodologies
1 21 (25.30%) Problem-Solving
2 17 (20.48%) ITIL
3 13 (15.66%) Cybersecurity
4 12 (14.46%) Infrastructure Engineering
5 9 (10.84%) Project Management
5 9 (10.84%) Service Management
5 9 (10.84%) Time Management
6 8 (9.64%) ERP
6 8 (9.64%) Infrastructure Monitoring
7 7 (8.43%) Asset Management
8 6 (7.23%) Computer Science
8 6 (7.23%) Document Management
8 6 (7.23%) Network Monitoring
9 5 (6.02%) Continuous Improvement
9 5 (6.02%) ITSM
9 5 (6.02%) Network Management
9 5 (6.02%) Patch Management
10 4 (4.82%) Incident Management
10 4 (4.82%) Migration
10 4 (4.82%) Network Design
Programming Languages
1 5 (6.02%) PowerShell
1 5 (6.02%) SQL
2 3 (3.61%) C
2 3 (3.61%) C#
2 3 (3.61%) Java
2 3 (3.61%) VB
3 2 (2.41%) Python
4 1 (1.20%) Bash Shell
4 1 (1.20%) Ruby
4 1 (1.20%) Shell Script
Qualifications
1 8 (9.64%) Cisco Certification
2 6 (7.23%) CCNP
2 6 (7.23%) Degree
2 6 (7.23%) Microsoft Certification
3 5 (6.02%) CCNA
4 4 (4.82%) ITIL Foundation Certificate
4 4 (4.82%) MCSA
5 3 (3.61%) A+ Certification
5 3 (3.61%) Avaya Certification
6 2 (2.41%) DBS Check
6 2 (2.41%) MCSE
7 1 (1.20%) CCENT
7 1 (1.20%) CompTIA Security+
7 1 (1.20%) HND
7 1 (1.20%) MCP
7 1 (1.20%) Network+ Certification
Quality Assurance & Compliance
1 4 (4.82%) SLA
2 1 (1.20%) ISO/IEC 27001
System Software
1 56 (67.47%) Active Directory
2 33 (39.76%) VMware Infrastructure
3 6 (7.23%) VMware Workstation
3 6 (7.23%) XenDesktop
4 5 (6.02%) Hyper-V
5 3 (3.61%) XenApp
6 2 (2.41%) VMware ESXi
7 1 (1.20%) BitLocker
7 1 (1.20%) Docker
Systems Management
1 7 (8.43%) Cisco CUCM
2 5 (6.02%) SCCM
3 4 (4.82%) Backup Exec
4 3 (3.61%) Cisco UCCX
4 3 (3.61%) Malwarebytes
4 3 (3.61%) McAfee ePO
4 3 (3.61%) Norton AntiVirus
4 3 (3.61%) vCenter Server
4 3 (3.61%) WSUS
4 3 (3.61%) XenMobile
5 1 (1.20%) Ansible
5 1 (1.20%) FortiGate
5 1 (1.20%) Grafana
5 1 (1.20%) Kubernetes
5 1 (1.20%) Nessus
5 1 (1.20%) ZABBIX
Vendors
1 54 (65.06%) Microsoft
2 35 (42.17%) VMware
3 30 (36.14%) Cisco
4 13 (15.66%) Avaya
5 10 (12.05%) Apple
5 10 (12.05%) Citrix
6 9 (10.84%) HP
7 7 (8.43%) Riverbed
8 6 (7.23%) SolarWinds
9 5 (6.02%) CheckPoint
9 5 (6.02%) WatchGuard
10 4 (4.82%) Bloomberg
10 4 (4.82%) McAfee
10 4 (4.82%) Qualys
10 4 (4.82%) Symantec
10 4 (4.82%) Veeam
11 3 (3.61%) IronPort
11 3 (3.61%) Palo Alto
11 3 (3.61%) ProCurve
11 3 (3.61%) Sophos