Period
to 11 December 2017

The following table provides summary statistics for permanent job vacancies advertised in Hertfordshire 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 11 December 2017 with a comparison to the same period in the previous 2 years.

Voice Over IP (VoIP)
East of England > Hertfordshire
6 months to
11 Dec 2017
Same period 2016 Same period 2015
Rank 138 167 180
Rank change year-on-year +29 +13 -34
Permanent jobs citing VoIP 85 51 57
As % of all permanent IT jobs advertised in Hertfordshire 1.91% 1.14% 1.08%
As % of the Communications & Networking category 9.11% 6.66% 5.66%
Number of salaries quoted 58 40 52
Hertfordshire median annual salary £42,500 £42,000 £45,000
Median salary % change year-on-year +1.19% -6.67% +5.88%
10th Percentile £25,500 £24,675 £27,525
90th Percentile £65,375 £54,375 £56,250
East of England median annual salary £42,500 £42,500 £40,000
% change year-on-year - +6.25% +6.67%

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 Hertfordshire with a requirement for communications or computer networking skills.

All Communications and Computer Networking Skills
Hertfordshire
Permanent vacancies with a requirement for communications or computer networking skills 933 766 1007
As % of all permanent IT jobs advertised in Hertfordshire 20.95% 17.18% 19.07%
Number of salaries quoted 765 606 763
Hertfordshire median annual salary £47,000 £45,000 £45,000
Median salary % change year-on-year +4.44% - -
10th Percentile £25,000 £23,000 £26,250
90th Percentile £68,750 £65,000 £63,750
East of England median annual salary £45,000 £45,000 £42,500
% change year-on-year - +5.88% -

VoIP
Job Vacancy Trend in Hertfordshire

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

Job vacancy trend for VoIP in Hertfordshire

VoIP
Salary Trend in Hertfordshire

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

Salary trend for VoIP in Hertfordshire

VoIP
Salary Histogram in Hertfordshire

The salary distribution of IT jobs citing VoIP in Hertfordshire over the 6 months to 11 December 2017.

Salary histogram for VoIP in Hertfordshire

VoIP
Job Locations in Hertfordshire

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing VoIP within the Hertfordshire region over the 6 months to 11 December 2017. 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
Hemel Hempstead +11 21 £50,000 +19.05%
Watford -7 18 £65,000 +52.94%
Welwyn Garden City +4 11 £40,000 -
Hatfield - 6 £42,500 - 1
Ware - 4 £27,000 -
Berkhamsted - 3 - -
Stevenage -1 1 £55,000 +7.32%
Borehamwood - 1 £24,500 -
Welwyn - 1 £42,500 -
VoIP
East of England

For the 6 months to 11 December 2017, IT jobs citing VoIP also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the Hertfordshire region with a requirement for VoIP.

1 66 (77.65%) Windows
2 58 (68.24%) VMware
3 51 (60.00%) Windows Server
4 47 (55.29%) Microsoft
5 44 (51.76%) Active Directory
6 43 (50.59%) VMware Infrastructure
7 40 (47.06%) Windows Server 2008
7 40 (47.06%) MS Exchange
8 33 (38.82%) DHCP
9 32 (37.65%) SQL Server
9 32 (37.65%) Firewall
10 31 (36.47%) DNS
10 31 (36.47%) Cisco
11 28 (32.94%) SAN
11 28 (32.94%) ITIL
11 28 (32.94%) Windows Server 2012
12 26 (30.59%) VPN
12 26 (30.59%) Disaster Recovery
13 25 (29.41%) Microsoft Office
13 25 (29.41%) SQL
13 25 (29.41%) Office 365
14 24 (28.24%) Linux
15 23 (27.06%) VLAN
16 22 (25.88%) WAN
17 21 (24.71%) LAN
17 21 (24.71%) Hyper-V
18 19 (22.35%) Windows 7
18 19 (22.35%) Citrix
19 18 (21.18%) TCP/IP
19 18 (21.18%) Telecoms

VoIP
Co-occurring IT Skills in Hertfordshire 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 40 (47.06%) MS Exchange
2 16 (18.82%) Exchange Server 2010
2 16 (18.82%) Exchange Server 2013
3 10 (11.76%) Skype for Business
4 8 (9.41%) Tomcat
5 6 (7.06%) SharePoint
6 4 (4.71%) Apache
6 4 (4.71%) IIS
7 2 (2.35%) nginx
Applications
1 25 (29.41%) Microsoft Office
2 1 (1.18%) Microsoft Excel
Business Applications
1 1 (1.18%) Dynamics AX
Cloud Services
1 25 (29.41%) Office 365
2 10 (11.76%) PaaS
3 6 (7.06%) SaaS
Communications & Networking
1 33 (38.82%) DHCP
2 32 (37.65%) Firewall
3 31 (36.47%) DNS
4 28 (32.94%) SAN
5 26 (30.59%) VPN
6 23 (27.06%) VLAN
7 22 (25.88%) WAN
8 21 (24.71%) LAN
9 18 (21.18%) TCP/IP
10 17 (20.00%) iSCSI
11 13 (15.29%) PBX
12 10 (11.76%) ISDN
12 10 (11.76%) MPLS
12 10 (11.76%) Remote Desktop
12 10 (11.76%) Skype
13 8 (9.41%) Wi-Fi
13 8 (9.41%) Wireless
14 6 (7.06%) Internet
15 3 (3.53%) CTI
16 2 (2.35%) OSPF
Database & Business Intelligence
1 32 (37.65%) SQL Server
2 15 (17.65%) SQL Server 2008
3 8 (9.41%) MySQL
3 8 (9.41%) SQL Server Reporting Services
General
1 18 (21.18%) Telecoms
2 15 (17.65%) Finance
3 11 (12.94%) Retail
4 10 (11.76%) Games
5 5 (5.88%) Manufacturing
5 5 (5.88%) Pharmaceutical
6 4 (4.71%) Legal
6 4 (4.71%) Multimedia
Job Titles
1 21 (24.71%) 3rd Line Engineer
2 17 (20.00%) Support Engineer
3 12 (14.12%) Consultant
3 12 (14.12%) IT Manager
3 12 (14.12%) IT Support
4 11 (12.94%) 3rd Line Support
5 10 (11.76%) 3rd Line Support Engineer
6 8 (9.41%) Infrastructure Engineer
7 7 (8.24%) Cybersecurity Consultant
7 7 (8.24%) Cybersecurity Engineer
7 7 (8.24%) Information Security Consultant
7 7 (8.24%) Information Security Engineer
7 7 (8.24%) IT Engineer
7 7 (8.24%) Security Consultant
7 7 (8.24%) Security Engineer
7 7 (8.24%) Systems Engineer
8 6 (7.06%) IT Support Engineer
9 5 (5.88%) Analyst
9 5 (5.88%) Infrastructure Support Engineer
9 5 (5.88%) IT Support Analyst
Libraries, Frameworks & Software Standards
1 4 (4.71%) Web Services
2 2 (2.35%) Apache Axis
2 2 (2.35%) HTML
Miscellaneous
1 15 (17.65%) Analytical Skills
2 11 (12.94%) Data Centre
3 8 (9.41%) Replication
4 7 (8.24%) Data Protection Act
4 7 (8.24%) User Experience
5 3 (3.53%) PlayStation
6 2 (2.35%) Driving Licence
7 1 (1.18%) Blackberry
7 1 (1.18%) iPhone
7 1 (1.18%) IVR
7 1 (1.18%) Virtual Team
Operating Systems
1 66 (77.65%) Windows
2 51 (60.00%) Windows Server
3 40 (47.06%) Windows Server 2008
4 28 (32.94%) Windows Server 2012
5 24 (28.24%) Linux
6 19 (22.35%) Windows 7
7 10 (11.76%) Red Hat Enterprise Linux
7 10 (11.76%) Windows Server 2003
8 6 (7.06%) Unix
9 4 (4.71%) Windows 10
9 4 (4.71%) Windows XP
10 3 (3.53%) Android
11 2 (2.35%) CentOS
11 2 (2.35%) Ubuntu
12 1 (1.18%) Apple iOS
12 1 (1.18%) Mac OS
12 1 (1.18%) Windows 8
Processes & Methodologies
1 28 (32.94%) ITIL
2 26 (30.59%) Disaster Recovery
3 15 (17.65%) Change Management
3 15 (17.65%) Problem Management
4 12 (14.12%) Cybersecurity
4 12 (14.12%) ITIL V3
5 10 (11.76%) Coaching
5 10 (11.76%) E-Commerce
5 10 (11.76%) Mentoring
6 8 (9.41%) Release Management
6 8 (9.41%) Software Deployment
7 7 (8.24%) Cryptography
7 7 (8.24%) Data Protection
7 7 (8.24%) Information Security
7 7 (8.24%) Kalman Filter
7 7 (8.24%) Patch Management
7 7 (8.24%) Penetration Testing
7 7 (8.24%) Project Management
7 7 (8.24%) Regulatory Compliance
8 5 (5.88%) DNA
Programming Languages
1 25 (29.41%) SQL
2 17 (20.00%) PowerShell
3 15 (17.65%) VBScript
4 4 (4.71%) C#
5 2 (2.35%) Bash Shell
5 2 (2.35%) C
5 2 (2.35%) C++
5 2 (2.35%) Java
5 2 (2.35%) JavaScript
5 2 (2.35%) PHP
5 2 (2.35%) VB
5 2 (2.35%) VB6
Qualifications
1 17 (20.00%) Microsoft Certification
2 13 (15.29%) CCNA
2 13 (15.29%) Cisco Certification
3 12 (14.12%) CCAA
3 12 (14.12%) Citrix Certification
3 12 (14.12%) VMware Certified Professional (VCP)
4 9 (10.59%) MCSE
5 8 (9.41%) MCP
5 8 (9.41%) MCTS
6 4 (4.71%) CISSP
6 4 (4.71%) MCITP
6 4 (4.71%) MCSA
7 1 (1.18%) CCNP
7 1 (1.18%) Degree
Quality Assurance & Compliance
1 13 (15.29%) ISO/IEC 27001
1 13 (15.29%) PCI DSS
2 7 (8.24%) Cyber Essentials
2 7 (8.24%) Cyber Essentials PLUS
3 6 (7.06%) GAMP
3 6 (7.06%) GxP
4 5 (5.88%) SLA
5 1 (1.18%) GMP
5 1 (1.18%) HIPAA
System Software
1 44 (51.76%) Active Directory
2 43 (50.59%) VMware Infrastructure
3 21 (24.71%) Hyper-V
4 10 (11.76%) Terminal Services
4 10 (11.76%) VMware ESXi
5 6 (7.06%) Xen
6 2 (2.35%) Docker
6 2 (2.35%) Postfix
6 2 (2.35%) PowerDNS
7 1 (1.18%) Microsoft Virtual Server
7 1 (1.18%) Virtual Servers
7 1 (1.18%) vSphere
Systems Management
1 13 (15.29%) WSUS
2 5 (5.88%) Opscode Chef
3 4 (4.71%) Ansible
4 2 (2.35%) Cacti
4 2 (2.35%) Nagios
4 2 (2.35%) Opsview
4 2 (2.35%) Puppet
4 2 (2.35%) ZABBIX
Vendors
1 58 (68.24%) VMware
2 47 (55.29%) Microsoft
3 31 (36.47%) Cisco
4 19 (22.35%) Citrix
5 17 (20.00%) HP
6 12 (14.12%) SonicWALL
7 7 (8.24%) Avaya
8 6 (7.06%) Zeacom
9 4 (4.71%) Siemens
10 3 (3.53%) Juniper
11 2 (2.35%) Acronis
11 2 (2.35%) Aruba
11 2 (2.35%) Polycom
11 2 (2.35%) Veeam
12 1 (1.18%) Apple
12 1 (1.18%) Brocade
12 1 (1.18%) Mitel