The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Cocoa skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Cocoa over the 3 months to 29 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 Cocoa
London > City of London
3 months to
29 Jun 2017
Same period 2016 Same period 2015
Rank 165 150 202
Rank change year-on-year -15 +52  
Contract jobs citing Cocoa 4 13 8
As % of all contract IT jobs advertised in the City of London 0.12% 0.39% 0.14%
As % of the Libraries, Frameworks & Software Standards category 0.32% 1.11% 0.46%
Number of daily rates quoted 3 8 3
City of London median daily rate £413 £494 £450
Median daily rate % change year-on-year -16.45% +9.72%  
10th Percentile £379 £408 £265
90th Percentile £516 £540 £515
London median daily rate £450 £494 £475
% change year-on-year -8.86% +3.94%  
Number of hourly rates quoted 0 0 0
City of London median hourly rate - - -
London median hourly rate - - -

Cocoa 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 1241 1176 1734
As % of all contract IT job vacancies advertised in the City of London 37.97% 35.19% 29.73%
Number of daily rates quoted 3876 4001 4991
City of London median daily rate £500 £450 £425
Median daily rate % change year-on-year +11.00% +5.88%  
10th Percentile £350 £313 £310
90th Percentile £638 £588 £625
London median daily rate £475 £450 £425
% change year-on-year +5.55% +5.88%  
Number of hourly rates quoted 5 2 38
City of London median hourly rate £24.36 £20.00 £24.23
Median hourly rate % change year-on-year +21.80% -17.45%  
10th Percentile £20.75 £19.00 £15.24
90th Percentile £25.29 £21.00 £193.75
London median hourly rate £31.00 £40.00 £22.50
% change year-on-year -22.50% +77.77%  

Cocoa
Job Vacancy Trend in the City of London

Job postings citing Cocoa as a percentage of all IT jobs advertised in the City of London.

Job vacancy trend for Cocoa in the City of London

Cocoa
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 Cocoa in the City of London.

Contractor daily rate trend for Cocoa in the City of London

Cocoa
Contractor Hourly Rate Trend in the City of London

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing Cocoa in the City of London.

Contractor hourly rate trend for Cocoa in the City of London

For the 6 months to 29 June 2017, IT contractor jobs citing Cocoa 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 Cocoa.

1 11 (100.00%) Web Services
1 11 (100.00%) Agile Software Development
1 11 (100.00%) REST
1 11 (100.00%) Apple iOS
1 11 (100.00%) iOS Development
1 11 (100.00%) Apple Swift
2 9 (81.82%) Objective-C
3 6 (54.55%) Test Automation
3 6 (54.55%) RESTful
3 6 (54.55%) Enterprise Software
4 5 (45.45%) Cocoa Touch
4 5 (45.45%) Continuous Integration
4 5 (45.45%) TDD
4 5 (45.45%) SOAP
4 5 (45.45%) Scrum
4 5 (45.45%) JSON
5 4 (36.36%) SQLite
5 4 (36.36%) Software Engineering
5 4 (36.36%) SQL
5 4 (36.36%) MySQL
5 4 (36.36%) iPhone
5 4 (36.36%) Git (software)
5 4 (36.36%) Unit Testing
5 4 (36.36%) CouchDB
5 4 (36.36%) Microsoft Azure
5 4 (36.36%) iPad
5 4 (36.36%) MongoDB
5 4 (36.36%) Azure SQL Database
5 4 (36.36%) Progressive Enhancement
5 4 (36.36%) Mobile App

Cocoa
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 (9.09%) Confluence
Cloud Services
1 4 (36.36%) Microsoft Azure
1 4 (36.36%) TestFlight
Database & Business Intelligence
1 4 (36.36%) Azure SQL Database
1 4 (36.36%) CouchDB
1 4 (36.36%) MongoDB
1 4 (36.36%) MySQL
1 4 (36.36%) SQLite
Development Applications
1 4 (36.36%) Git (software)
2 1 (9.09%) Bitbucket
2 1 (9.09%) Jenkins
2 1 (9.09%) JIRA
Job Titles
1 10 (90.91%) Developer
1 10 (90.91%) iOS Developer
2 3 (27.27%) Senior Developer
2 3 (27.27%) Senior iOS Developer
3 1 (9.09%) Lead Developer
3 1 (9.09%) Lead iOS Developer
Libraries, Frameworks & Software Standards
1 11 (100.00%) REST
1 11 (100.00%) Web Services
2 6 (54.55%) RESTful
3 5 (45.45%) Cocoa Touch
3 5 (45.45%) JSON
3 5 (45.45%) SOAP
4 1 (9.09%) Core Data
4 1 (9.09%) HTML
4 1 (9.09%) HTML5
4 1 (9.09%) iOS SDK
4 1 (9.09%) jQuery
4 1 (9.09%) UIKit
Miscellaneous
1 6 (54.55%) Enterprise Software
2 4 (36.36%) iPad
2 4 (36.36%) iPhone
2 4 (36.36%) Mobile App
3 1 (9.09%) User Experience
3 1 (9.09%) Wiki
Operating Systems
1 11 (100.00%) Apple iOS
Processes & Methodologies
1 11 (100.00%) Agile Software Development
1 11 (100.00%) iOS Development
2 6 (54.55%) Test Automation
3 5 (45.45%) Continuous Integration
3 5 (45.45%) Scrum
3 5 (45.45%) TDD
4 4 (36.36%) Adaptive Web Design
4 4 (36.36%) Progressive Enhancement
4 4 (36.36%) Software Engineering
4 4 (36.36%) Unit Testing
5 1 (9.09%) BDD
5 1 (9.09%) E-Commerce
5 1 (9.09%) Project Management
Programming Languages
1 11 (100.00%) Apple Swift
2 9 (81.82%) Objective-C
3 4 (36.36%) SQL
4 1 (9.09%) JavaScript