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

Apple iOS SDK
London / City of London
3 months to
24 Jun 2017
Same period 2016 Same period 2015
Rank 162 162 201
Rank change year-on-year 0 +39  
Contract jobs citing iOS SDK 4 3 7
As % of all contract IT jobs advertised in the City of London 0.12% 0.089% 0.12%
As % of the Libraries, Frameworks & Software Standards category 0.32% 0.25% 0.41%
Number of daily rates quoted 4 3 5
Median daily rate £450 £450 £375
Median daily rate % change year-on-year - +20.00%  
90% offered a daily rate of more than £373 £430 £225
10% offered a daily rate of more than £493 £460 £435
UK excluding London median daily rate £388 £350 £413
% change year-on-year +10.71% -15.15%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £41.50 - -

iOS SDK is in the industry standards, technical specifications and software library and framework skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in the City of London with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
City of London
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 1235 1179 1724
As % of all contract IT job vacancies advertised in the City of London 37.81% 34.85% 29.62%
Number of daily rates quoted 1006 1014 1396
Median daily rate £500 £450 £426
Median daily rate % change year-on-year +11.00% +5.75%  
90% offered a daily rate of more than £363 £325 £318
10% offered a daily rate of more than £625 £575 £600
UK excluding London median daily rate £398 £375 £350
% change year-on-year +6.00% +7.14%  
Number of hourly rates quoted 5 1 11
Median hourly rate £24.36 £20.00 £24.23
Median hourly rate % change year-on-year +21.80% -17.45%  
90% offered a hourly rate of more than £21.50 £20.00 £15.64
10% offered a hourly rate of more than £24.86 £20.00 £187.50
UK excluding London median hourly rate £42.50 £36.00 £40.00
% change year-on-year +18.05% -10.00%  

iOS SDK
Job Vacancy Trend in the City of London

The job posting trend of jobs advertised in the City of London citing iOS SDK as a proportion of all contract or permanent IT jobs with a match in the Libraries, Frameworks & Software Standards category.

Job vacancy trend for iOS SDK in the City of London

iOS SDK
Contractor Daily Rate Trend in the City of London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing iOS SDK in the City of London.

Contractor daily rate trend for iOS SDK in the City of London

iOS SDK
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing iOS SDK in the City of London over the 3 months to 24 June 2017.

Contractor daily rate histogram for iOS SDK in the City of London

For the 6 months to 24 June 2017, IT contractor jobs citing iOS SDK 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 City of London region with a requirement for iOS SDK.

1 7 (100.00%) Apple iOS
2 5 (71.43%) Android
2 5 (71.43%) iOS Development
2 5 (71.43%) Apple Swift
3 4 (57.14%) Objective-C
3 4 (57.14%) Agile Software Development
4 3 (42.86%) TDD
4 3 (42.86%) JSON
4 3 (42.86%) BDD
4 3 (42.86%) REST
4 3 (42.86%) Android SDK
4 3 (42.86%) Android Development
5 2 (28.57%) React Native
5 2 (28.57%) User Experience
5 2 (28.57%) Xcode
5 2 (28.57%) Core Data
5 2 (28.57%) PhoneGap
5 2 (28.57%) UIKit
5 2 (28.57%) Xamarin
5 2 (28.57%) Google
5 2 (28.57%) jQuery
5 2 (28.57%) Continuous Integration
5 2 (28.57%) Scrum
5 2 (28.57%) HTML
5 2 (28.57%) Java
5 2 (28.57%) SOAP
5 2 (28.57%) Web Services
6 1 (14.29%) Linux
6 1 (14.29%) Apache
6 1 (14.29%) CRM

iOS SDK
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 1 (14.29%) Apache
1 1 (14.29%) Confluence
Cloud Services
1 1 (14.29%) Amazon AWS
1 1 (14.29%) Amazon EC2
1 1 (14.29%) Google Play
Communications & Networking
1 1 (14.29%) RFID
Database & Business Intelligence
1 1 (14.29%) Amazon RDS
1 1 (14.29%) MongoDB
1 1 (14.29%) MySQL
Development Applications
1 2 (28.57%) Xcode
2 1 (14.29%) Android Studio
2 1 (14.29%) Appcelerator Titanium
2 1 (14.29%) Bitbucket
2 1 (14.29%) Capybara
2 1 (14.29%) Cucumber
2 1 (14.29%) Jenkins
2 1 (14.29%) JIRA
2 1 (14.29%) JUnit
2 1 (14.29%) Selenium
General
1 1 (14.29%) Banking
1 1 (14.29%) Finance
1 1 (14.29%) Games
1 1 (14.29%) Marketing
Job Titles
1 6 (85.71%) Developer
2 3 (42.86%) Android Developer
2 3 (42.86%) iOS Developer
3 2 (28.57%) iOS Android Developer
4 1 (14.29%) Front End Developer (Client-Side Developer)
4 1 (14.29%) Mobile Developer
4 1 (14.29%) Perl Developer
Libraries, Frameworks & Software Standards
1 3 (42.86%) Android SDK
1 3 (42.86%) JSON
1 3 (42.86%) REST
2 2 (28.57%) Core Data
2 2 (28.57%) HTML
2 2 (28.57%) jQuery
2 2 (28.57%) PhoneGap
2 2 (28.57%) React Native
2 2 (28.57%) SOAP
2 2 (28.57%) UIKit
2 2 (28.57%) Web Services
3 1 (14.29%) Cocoa
3 1 (14.29%) CSS
3 1 (14.29%) Dojo
3 1 (14.29%) Ember.js
3 1 (14.29%) HTML5
3 1 (14.29%) LAMP
3 1 (14.29%) Mason
3 1 (14.29%) Memcached
3 1 (14.29%) Node.js
Miscellaneous
1 2 (28.57%) User Experience
2 1 (14.29%) Algorithms
2 1 (14.29%) Analytical Skills
2 1 (14.29%) Mobile App
2 1 (14.29%) Streaming Video
2 1 (14.29%) Wiki
Operating Systems
1 7 (100.00%) Apple iOS
2 5 (71.43%) Android
3 1 (14.29%) Linux
Processes & Methodologies
1 5 (71.43%) iOS Development
2 4 (57.14%) Agile Software Development
3 3 (42.86%) Android Development
3 3 (42.86%) BDD
3 3 (42.86%) TDD
4 2 (28.57%) Continuous Integration
4 2 (28.57%) Scrum
5 1 (14.29%) ATDD
5 1 (14.29%) Continuous Delivery
5 1 (14.29%) CRM
5 1 (14.29%) Cross-Platform Development
5 1 (14.29%) Front End Development
5 1 (14.29%) Kanban
5 1 (14.29%) Mobile Development
5 1 (14.29%) Mobile First
5 1 (14.29%) Project Management
5 1 (14.29%) Software Delivery
5 1 (14.29%) Telematics
5 1 (14.29%) Test Automation
5 1 (14.29%) Web Development
Programming Languages
1 5 (71.43%) Apple Swift
2 4 (57.14%) Objective-C
3 2 (28.57%) Java
4 1 (14.29%) JavaScript
4 1 (14.29%) Perl
Vendors
1 2 (28.57%) Google
1 2 (28.57%) Xamarin
2 1 (14.29%) Appcelerator
2 1 (14.29%) Apple
2 1 (14.29%) Facebook
2 1 (14.29%) Kony
2 1 (14.29%) Sencha
2 1 (14.29%) Telerik
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