The following table provides summary statistics for contract job vacancies advertised in Hertfordshire with a requirement for Apple iOS skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Apple iOS over the 3 months to 24 April 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.

Apple iOS
East of England / Hertfordshire
3 months to
24 Apr 2017
Same period 2016 Same period 2015
Rank 46 55 60
Rank change year-on-year +9 +5  
Contract jobs citing Apple iOS 7 3 11
As % of all contract IT jobs advertised in Hertfordshire 1.23% 0.40% 1.54%
As % of the Operating Systems category 5.74% 2.21% 5.45%
Number of daily rates quoted 6 1 3
Median daily rate £300 £400 £300
Median daily rate % change year-on-year -25.00% +33.33%  
90% offered a daily rate of more than £250 £400 £288
10% offered a daily rate of more than £425 £400 £350
UK excluding London median daily rate £366 £370 £338
% change year-on-year -1.01% +9.62%  
Number of hourly rates quoted 1 0 0
Median hourly rate £14.20 - -
UK excluding London median hourly rate £17.50 £17.50 £24.60
% change year-on-year - -28.86%  

Apple iOS is in the operating system 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 operating system skills.

Contract Operating System Skills
Hertfordshire
Contract job vacancies with a requirement for operating system skills 122 136 202
As % of all contract IT job vacancies advertised in Hertfordshire 21.44% 18.28% 28.25%
Number of daily rates quoted 78 76 82
Median daily rate £328 £390 £375
Median daily rate % change year-on-year -16.02% +4.00%  
90% offered a daily rate of more than £130 £163 £220
10% offered a daily rate of more than £550 £525 £475
UK excluding London median daily rate £388 £363 £340
% change year-on-year +6.89% +6.61%  
Number of hourly rates quoted 13 10 25
Median hourly rate £14.50 £16.00 £14.85
Median hourly rate % change year-on-year -9.37% +7.74%  
90% offered a hourly rate of more than £13.00 £13.50 £9.10
10% offered a hourly rate of more than £31.50 £37.90 £25.00
UK excluding London median hourly rate £15.25 £16.50 £15.50
% change year-on-year -7.57% +6.45%  

Apple iOS
Job Vacancy Trend in Hertfordshire

The job posting trend of jobs advertised in Hertfordshire citing Apple iOS as a proportion of all contract or permanent IT jobs with a match in the Operating Systems category.

Job vacancy trend for Apple iOS in Hertfordshire

Apple iOS
Contractor Daily Rate Trend in Hertfordshire

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

Contractor daily rate trend for Apple iOS in Hertfordshire

Apple iOS
Contractor Daily Rate Histogram in Hertfordshire

The daily rate distribution of IT jobs citing Apple iOS in Hertfordshire over the 3 months to 24 April 2017.

Contractor daily rate histogram for Apple iOS in Hertfordshire

Apple iOS
Contractor Hourly Rate Trend in Hertfordshire

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

Contractor hourly rate trend for Apple iOS in Hertfordshire

Apple iOS
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 Apple iOS within the Hertfordshire region over the 3 months to 24 April 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 - 1
Stevenage - 1 - -
Welwyn Garden City - 1 £450 - 1
Apple iOS
East of England

For the 6 months to 24 April 2017, IT contractor jobs citing Apple iOS 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 Apple iOS.

1 7 (87.50%) Android
2 5 (62.50%) iOS SDK
2 5 (62.50%) Objective-C
2 5 (62.50%) JavaScript
2 5 (62.50%) XML
2 5 (62.50%) iOS Development
3 4 (50.00%) Performance Tuning
3 4 (50.00%) Android SDK
3 4 (50.00%) Android Development
3 4 (50.00%) Wireframes
3 4 (50.00%) Java
3 4 (50.00%) C#
3 4 (50.00%) VoIP
3 4 (50.00%) RESTful
3 4 (50.00%) Wireshark
4 3 (37.50%) Windows
4 3 (37.50%) Xcode
4 3 (37.50%) Microsoft
4 3 (37.50%) Apple
5 2 (25.00%) Active Directory
5 2 (25.00%) ITIL
5 2 (25.00%) Microsoft Office
5 2 (25.00%) Windows Server 2008
5 2 (25.00%) Windows 7
5 2 (25.00%) Windows 10
5 2 (25.00%) Office 365
6 1 (12.50%) Big Data
6 1 (12.50%) Cocoa Touch
6 1 (12.50%) UIKit
6 1 (12.50%) Windows 8

Apple iOS
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:

Applications
1 2 (25.00%) Microsoft Office
2 1 (12.50%) Adobe Creative Suite
2 1 (12.50%) Microsoft Excel
2 1 (12.50%) Microsoft PowerPoint
Cloud Services
1 2 (25.00%) Office 365
Communications & Networking
1 4 (50.00%) VoIP
1 4 (50.00%) Wireshark
2 1 (12.50%) DHCP
2 1 (12.50%) DNS
2 1 (12.50%) Internet
Database & Business Intelligence
1 1 (12.50%) Big Data
Development Applications
1 3 (37.50%) Xcode
2 1 (12.50%) Subversion
General
1 1 (12.50%) Marketing
1 1 (12.50%) Retail
Job Titles
1 5 (62.50%) Developer
1 5 (62.50%) iOS Developer
2 4 (50.00%) Android Developer
2 4 (50.00%) C# Developer
2 4 (50.00%) C# Software Developer
2 4 (50.00%) iOS Android Developer
2 4 (50.00%) Software Developer
3 2 (25.00%) Java Android Developer
3 2 (25.00%) Java Developer
3 2 (25.00%) Java Software Developer
3 2 (25.00%) Objective-C Developer
4 1 (12.50%) 2nd Line Desktop Support
4 1 (12.50%) 2nd Line Desktop Support Engineer
4 1 (12.50%) 2nd Line Engineer
4 1 (12.50%) Desktop Engineer
4 1 (12.50%) Desktop Support Engineer
4 1 (12.50%) Help Desk Support
4 1 (12.50%) IT Support
4 1 (12.50%) Mobile Applications Developer
4 1 (12.50%) Mobile Developer
Libraries, Frameworks & Software Standards
1 5 (62.50%) iOS SDK
1 5 (62.50%) XML
2 4 (50.00%) Android SDK
2 4 (50.00%) RESTful
3 1 (12.50%) Cocoa
3 1 (12.50%) Cocoa Touch
3 1 (12.50%) Core Data
3 1 (12.50%) HTML
3 1 (12.50%) HTML5
3 1 (12.50%) jQuery
3 1 (12.50%) JSON
3 1 (12.50%) REST
3 1 (12.50%) SOAP
3 1 (12.50%) UIKit
3 1 (12.50%) Web Services
Miscellaneous
1 1 (12.50%) Credit Risk
1 1 (12.50%) iPhone
1 1 (12.50%) Mobile App
1 1 (12.50%) Smartphone
1 1 (12.50%) Social Media
Operating Systems
1 7 (87.50%) Android
2 3 (37.50%) Windows
3 2 (25.00%) Windows 10
3 2 (25.00%) Windows 7
3 2 (25.00%) Windows Server 2008
4 1 (12.50%) Mac OS X
4 1 (12.50%) Windows 8
4 1 (12.50%) Windows Server
4 1 (12.50%) Windows Server 2012
4 1 (12.50%) Windows XP
Processes & Methodologies
1 5 (62.50%) iOS Development
2 4 (50.00%) Android Development
2 4 (50.00%) Performance Tuning
2 4 (50.00%) Wireframes
3 2 (25.00%) ITIL
4 1 (12.50%) Agile Software Development
4 1 (12.50%) Analytics
4 1 (12.50%) Application Packaging
4 1 (12.50%) Business Intelligence
4 1 (12.50%) Continuous Improvement
4 1 (12.50%) Front End Development
4 1 (12.50%) ITSM
4 1 (12.50%) OO
4 1 (12.50%) Performance Metrics
4 1 (12.50%) PRINCE
4 1 (12.50%) Service Delivery
4 1 (12.50%) Web Analytics
4 1 (12.50%) Web Development
Programming Languages
1 5 (62.50%) JavaScript
1 5 (62.50%) Objective-C
2 4 (50.00%) C#
2 4 (50.00%) Java
3 1 (12.50%) SQL
Qualifications
1 1 (12.50%) MCSA
1 1 (12.50%) Microsoft Certification
1 1 (12.50%) PMP
Quality Assurance & Compliance
1 1 (12.50%) SLA
System Software
1 2 (25.00%) Active Directory
2 1 (12.50%) VMware ESX
2 1 (12.50%) XenDesktop
Systems Management
1 1 (12.50%) SCCM
Vendors
1 3 (37.50%) Apple
1 3 (37.50%) Microsoft
2 1 (12.50%) Adobe
2 1 (12.50%) Citrix
2 1 (12.50%) Samsung
2 1 (12.50%) VMware