The following table provides summary statistics for contract job vacancies advertised in Hertfordshire with a requirement for VoIP skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited VoIP over the 3 months to 23 March 2017 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

3 months to
23 Mar 2017
Same period 2016 Same period 2015
Voice Over IP (VoIP)
East of England / Hertfordshire
Rank 54 52 61
Rank change year-on-year -2 +9  
Contract jobs citing VoIP 5 3 4
As % of all contract IT jobs advertised in Hertfordshire 0.82% 0.45% 0.57%
As % of the Communications & Networking category 4.24% 2.63% 3.20%
Number of daily rates quoted 4 0 4
Median daily rate £275 - £160
90% offered a daily rate of more than £250 - £143
10% offered a daily rate of more than £300 - £265
UK excluding London median daily rate £388 £350 £285
% change year-on-year +10.71% +22.80%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £17.50 £40.00 £15.50
% change year-on-year -56.25% +158.06%  

VoIP is in the communications and computer networking skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Hertfordshire with a requirement for communications and computer networking skills.

Contract Communications & Computer Network Skills
Hertfordshire
Contract job vacancies with a requirement for communications and computer networking skills 118 114 125
As % of all contract IT job vacancies advertised in Hertfordshire 19.38% 16.99% 17.93%
Number of daily rates quoted 68 60 53
Median daily rate £330 £425 £375
Median daily rate % change year-on-year -22.35% +13.33%  
90% offered a daily rate of more than £193 £350 £215
10% offered a daily rate of more than £500 £525 £475
UK excluding London median daily rate £375 £363 £347
% change year-on-year +3.44% +4.32%  
Number of hourly rates quoted 4 7 18
Median hourly rate £31.50 £15.50 £14.85
Median hourly rate % change year-on-year +103.22% +4.37%  
90% offered a hourly rate of more than £20.75 £13.65 £10.00
10% offered a hourly rate of more than £42.00 £37.95 £37.50
UK excluding London median hourly rate £22.85 £37.00 £27.50
% change year-on-year -38.24% +34.54%  

VoIP
Job Vacancy Trend in Hertfordshire

The job posting trend of jobs advertised in Hertfordshire citing VoIP as a proportion of all contract or permanent IT jobs with a match in the Communications & Networking category.

Job vacancy trend for VoIP in Hertfordshire

VoIP
Contractor Daily Rate Trend in Hertfordshire

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing VoIP in Hertfordshire.

Contractor daily rate trend for VoIP in Hertfordshire

VoIP
Contractor Hourly Rate Trend in Hertfordshire

This chart provides the 3-month moving average for hourly rates quoted in IT contractor jobs citing VoIP in Hertfordshire.

Contractor hourly rate trend for VoIP in Hertfordshire

VoIP
Contract Job Locations in Hertfordshire

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing VoIP within the Hertfordshire region over the 3 months to 23 March 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
St Albans - 4 £275 -
VoIP
East of England

VoIP
Top 30 Related IT Skills in Hertfordshire

For the 6 months to 23 March 2017, IT contractor jobs citing VoIP also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the Hertfordshire region with a requirement for VoIP.

1 4 (57.14%) C#
1 4 (57.14%) Java
1 4 (57.14%) JavaScript
1 4 (57.14%) XML
1 4 (57.14%) Objective-C
1 4 (57.14%) Android
1 4 (57.14%) Wireshark
1 4 (57.14%) RESTful
1 4 (57.14%) Apple iOS
1 4 (57.14%) Android SDK
1 4 (57.14%) Android Development
1 4 (57.14%) iOS Development
1 4 (57.14%) Performance Tuning
1 4 (57.14%) iOS SDK
1 4 (57.14%) Wireframes
2 3 (42.86%) Apple
3 2 (28.57%) LAN
3 2 (28.57%) Xcode
3 2 (28.57%) Wi-Fi
4 1 (14.29%) Cisco CUCM
4 1 (14.29%) Windows Server 2012
4 1 (14.29%) Kalman Filter
4 1 (14.29%) DBS Check
4 1 (14.29%) Windows Server
4 1 (14.29%) Web Filtering
4 1 (14.29%) Exchange Server 2010
4 1 (14.29%) VMware ESXi
4 1 (14.29%) Cisco UCCE
4 1 (14.29%) vSphere
4 1 (14.29%) SonicWALL

VoIP
Top Related 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 1 (14.29%) Exchange Server 2010
1 1 (14.29%) MS Exchange
Communications & Networking
1 4 (57.14%) Wireshark
2 2 (28.57%) LAN
2 2 (28.57%) Wi-Fi
3 1 (14.29%) DHCP
3 1 (14.29%) DNS
3 1 (14.29%) Firewall
3 1 (14.29%) Internet
3 1 (14.29%) Intranet
3 1 (14.29%) IP Telephony
3 1 (14.29%) SAN
3 1 (14.29%) WAN
3 1 (14.29%) Wireless
Development Applications
1 2 (28.57%) Xcode
General
1 1 (14.29%) Retail
Job Titles
1 4 (57.14%) Android Developer
1 4 (57.14%) C# Developer
1 4 (57.14%) C# Software Developer
1 4 (57.14%) Developer
1 4 (57.14%) iOS Android Developer
1 4 (57.14%) iOS Developer
1 4 (57.14%) Software Developer
2 2 (28.57%) Java Android Developer
2 2 (28.57%) Java Developer
2 2 (28.57%) Java Software Developer
2 2 (28.57%) Objective-C Developer
3 1 (14.29%) Database Manager
3 1 (14.29%) IT Manager
3 1 (14.29%) Programme Director
3 1 (14.29%) Senior VoIP Engineer
3 1 (14.29%) VoIP Engineer
Libraries, Frameworks & Software Standards
1 4 (57.14%) Android SDK
1 4 (57.14%) iOS SDK
1 4 (57.14%) RESTful
1 4 (57.14%) XML
Miscellaneous
1 1 (14.29%) CCTV
Operating Systems
1 4 (57.14%) Android
1 4 (57.14%) Apple iOS
2 1 (14.29%) Linux
2 1 (14.29%) Mac OS X Server
2 1 (14.29%) Windows
2 1 (14.29%) Windows Server
2 1 (14.29%) Windows Server 2003
2 1 (14.29%) Windows Server 2012
Processes & Methodologies
1 4 (57.14%) Android Development
1 4 (57.14%) iOS Development
1 4 (57.14%) Performance Tuning
1 4 (57.14%) Wireframes
2 1 (14.29%) Kalman Filter
2 1 (14.29%) Web Filtering
Programming Languages
1 4 (57.14%) C#
1 4 (57.14%) Java
1 4 (57.14%) JavaScript
1 4 (57.14%) Objective-C
Qualifications
1 1 (14.29%) DBS Check
System Software
1 1 (14.29%) Active Directory
1 1 (14.29%) Hyper-V
1 1 (14.29%) VMware ESX
1 1 (14.29%) VMware ESXi
1 1 (14.29%) VMware Infrastructure
1 1 (14.29%) vSphere
1 1 (14.29%) XenApp
1 1 (14.29%) XenDesktop
Systems Management
1 1 (14.29%) Cisco CUCM
1 1 (14.29%) Cisco UCCE
1 1 (14.29%) SCCM
1 1 (14.29%) WSUS
Vendors
1 3 (42.86%) Apple
2 1 (14.29%) Cisco
2 1 (14.29%) Citrix
2 1 (14.29%) Dell
2 1 (14.29%) Microsoft
2 1 (14.29%) SonicWALL
2 1 (14.29%) VMware