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 28 June 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.

Voice Over IP (VoIP)
East of England / Hertfordshire
3 months to
28 Jun 2017
Same period 2016 Same period 2015
Rank 58 58 71
Rank change year-on-year 0 +13  
Contract jobs citing VoIP 4 2 3
As % of all contract IT jobs advertised in Hertfordshire 0.63% 0.30% 0.34%
As % of the Communications & Networking category 2.41% 1.69% 1.21%
Number of daily rates quoted 0 2 0
Median daily rate - £300 -
UK excluding London median daily rate £363 £355 £331
% change year-on-year +2.11% +7.16%  
Number of hourly rates quoted 2 0 0
Median hourly rate £15.40 - -
UK excluding London median hourly rate £20.00 £23.25 £20.50
% change year-on-year -13.97% +13.41%  

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 166 118 247
As % of all contract IT job vacancies advertised in Hertfordshire 26.06% 17.77% 28.07%
Number of daily rates quoted 212 210 316
Median daily rate £375 £375 £350
Median daily rate % change year-on-year - +7.14%  
90% offered a daily rate of more than £130 £256 £269
10% offered a daily rate of more than £575 £526 £463
UK excluding London median daily rate £375 £365 £340
% change year-on-year +2.73% +7.35%  
Number of hourly rates quoted 38 9 34
Median hourly rate £15.50 £17.50 £10.75
Median hourly rate % change year-on-year -11.42% +62.79%  
90% offered a hourly rate of more than £11.00 £16.20 £8.50
10% offered a hourly rate of more than £32.25 £24.88 £38.75
UK excluding London median hourly rate £27.50 £31.50 £23.50
% change year-on-year -12.69% +34.04%  

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
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 contractor hourly rates quoted in IT 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 28 June 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
Watford -6 2 - -
Stevenage - 1 - -
VoIP
East of England

For the 6 months to 28 June 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 (44.44%) C#
1 4 (44.44%) Java
1 4 (44.44%) JavaScript
1 4 (44.44%) XML
1 4 (44.44%) ITIL
1 4 (44.44%) Windows
1 4 (44.44%) LAN
1 4 (44.44%) Active Directory
1 4 (44.44%) Objective-C
1 4 (44.44%) Wireshark
1 4 (44.44%) Android
1 4 (44.44%) RESTful
1 4 (44.44%) Apple iOS
1 4 (44.44%) iOS SDK
1 4 (44.44%) Android SDK
1 4 (44.44%) Android Development
1 4 (44.44%) iOS Development
1 4 (44.44%) Performance Tuning
1 4 (44.44%) Wireframes
2 3 (33.33%) MS Exchange
2 3 (33.33%) Cisco
3 2 (22.22%) Microsoft
3 2 (22.22%) Firewall
3 2 (22.22%) Service Management
3 2 (22.22%) TOWER Software
3 2 (22.22%) HP
3 2 (22.22%) Dell
3 2 (22.22%) Apple
3 2 (22.22%) WLAN
3 2 (22.22%) WAN

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 3 (33.33%) MS Exchange
Communications & Networking
1 4 (44.44%) LAN
1 4 (44.44%) Wireshark
2 2 (22.22%) Firewall
2 2 (22.22%) HTTP
2 2 (22.22%) SMTP
2 2 (22.22%) WAN
2 2 (22.22%) WLAN
Development Applications
1 2 (22.22%) Xcode
General
1 1 (11.11%) Advertising
1 1 (11.11%) Games
1 1 (11.11%) Marketing
1 1 (11.11%) Publishing
1 1 (11.11%) Telecoms
Job Titles
1 4 (44.44%) Android Developer
1 4 (44.44%) C# Developer
1 4 (44.44%) C# Software Developer
1 4 (44.44%) Developer
1 4 (44.44%) iOS Android Developer
1 4 (44.44%) iOS Developer
1 4 (44.44%) Software Developer
2 2 (22.22%) Analyst
2 2 (22.22%) IT Analyst
2 2 (22.22%) IT Support
2 2 (22.22%) IT Support Analyst
2 2 (22.22%) Java Android Developer
2 2 (22.22%) Java Developer
2 2 (22.22%) Java Software Developer
2 2 (22.22%) Objective-C Developer
2 2 (22.22%) Support Analyst
2 2 (22.22%) Support Engineer
3 1 (11.11%) Desktop Support Engineer
3 1 (11.11%) Technical Support
3 1 (11.11%) Technical Support Engineer
Libraries, Frameworks & Software Standards
1 4 (44.44%) Android SDK
1 4 (44.44%) iOS SDK
1 4 (44.44%) RESTful
1 4 (44.44%) XML
Miscellaneous
1 2 (22.22%) Analytical Skills
2 1 (11.11%) Animation
2 1 (11.11%) Client/Server
2 1 (11.11%) Management Information System
Operating Systems
1 4 (44.44%) Android
1 4 (44.44%) Apple iOS
1 4 (44.44%) Windows
2 2 (22.22%) Windows Server
3 1 (11.11%) Windows 10
3 1 (11.11%) Windows 7
Processes & Methodologies
1 4 (44.44%) Android Development
1 4 (44.44%) iOS Development
1 4 (44.44%) ITIL
1 4 (44.44%) Performance Tuning
1 4 (44.44%) Wireframes
2 2 (22.22%) Information Security
2 2 (22.22%) Knowledge Management
2 2 (22.22%) Server Virtualisation
2 2 (22.22%) Service Management
2 2 (22.22%) Strategic Planning
3 1 (11.11%) Business Continuity
3 1 (11.11%) Change Management
Programming Languages
1 4 (44.44%) C#
1 4 (44.44%) Java
1 4 (44.44%) JavaScript
1 4 (44.44%) Objective-C
2 2 (22.22%) SQL
Quality Assurance & Compliance
1 1 (11.11%) SLA
System Software
1 4 (44.44%) Active Directory
2 2 (22.22%) Virtual Desktop
2 2 (22.22%) VMware Infrastructure
Systems Management
1 1 (11.11%) Cisco CUCM
1 1 (11.11%) Cisco UCCE
Vendors
1 3 (33.33%) Cisco
2 2 (22.22%) Apple
2 2 (22.22%) Dell
2 2 (22.22%) HP
2 2 (22.22%) Microsoft
2 2 (22.22%) Mitel
2 2 (22.22%) TOWER Software
2 2 (22.22%) Veeam
2 2 (22.22%) VMware