The following table provides summary statistics for contract job vacancies advertised in the City of London with a requirement for Objective-C skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Objective-C over the 3 months to 24 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
24 Mar 2017
Same period 2016 Same period 2015
Apple Objective-C
London / City of London
Rank 132 143 158
Rank change year-on-year +11 +15  
Contract jobs citing Objective-C 21 15 31
As % of all contract IT jobs advertised in the City of London 0.69% 0.46% 0.61%
As % of the Programming Languages category 1.43% 0.98% 1.40%
Number of daily rates quoted 18 14 25
Median daily rate £488 £463 £425
Median daily rate % change year-on-year +5.40% +8.82%  
90% offered a daily rate of more than £421 £400 £310
10% offered a daily rate of more than £550 £525 £500
UK excluding London median daily rate £400 £350 £375
% change year-on-year +14.28% -6.66%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £37.00 - £42.50

Objective-C is in the programming language 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 programming language skills.

Contract Programming Language Skills
City of London
Contract job vacancies with a requirement for programming language skills 1465 1530 2213
As % of all contract IT job vacancies advertised in the City of London 48.32% 46.45% 43.83%
Number of daily rates quoted 1200 1293 1782
Median daily rate £500 £475 £475
Median daily rate % change year-on-year +5.26% -  
90% offered a daily rate of more than £335 £325 £325
10% offered a daily rate of more than £625 £625 £615
UK excluding London median daily rate £390 £375 £350
% change year-on-year +4.00% +7.14%  
Number of hourly rates quoted 3 8 7
Median hourly rate £28.35 £29.64 £27.37
Median hourly rate % change year-on-year -4.36% +8.29%  
UK excluding London median hourly rate £41.64 £40.00 £36.00
% change year-on-year +4.10% +11.11%  

Objective-C
Job Vacancy Trend in the City of London

The job posting trend of jobs advertised in the City of London citing Objective-C as a proportion of all contract or permanent IT jobs with a match in the Programming Languages category.

Job vacancy trend for Objective-C in the City of London

Objective-C
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 Objective-C in the City of London.

Contractor daily rate trend for Objective-C in the City of London

Objective-C
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Objective-C in the City of London over the 3 months to 24 March 2017.

Contractor daily rate histogram for Objective-C in the City of London

Objective-C
Contractor Hourly Rate Trend in the City of London

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

Contractor hourly rate trend for Objective-C in the City of London

Objective-C
Top 30 Related IT Skills in the City of London

For the 6 months to 24 March 2017, IT contractor jobs citing Objective-C 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 Objective-C.

1 34 (94.44%) Apple iOS
2 29 (80.56%) Apple Swift
3 27 (75.00%) iOS Development
4 21 (58.33%) Agile Software Development
5 15 (41.67%) TDD
5 15 (41.67%) REST
6 12 (33.33%) Mobile App
7 11 (30.56%) Continuous Integration
7 11 (30.56%) Web Services
8 10 (27.78%) E-Commerce
8 10 (27.78%) Scrum
8 10 (27.78%) Cocoa
9 9 (25.00%) Software Engineering
9 9 (25.00%) Android
10 8 (22.22%) RESTful
10 8 (22.22%) Unit Testing
10 8 (22.22%) SOAP
11 7 (19.44%) Java
11 7 (19.44%) SQL
11 7 (19.44%) Apple
11 7 (19.44%) Cocoa Touch
11 7 (19.44%) Git (software)
12 6 (16.67%) Test Automation
12 6 (16.67%) CouchDB
12 6 (16.67%) Microsoft Azure
12 6 (16.67%) Progressive Enhancement
12 6 (16.67%) MongoDB
12 6 (16.67%) Azure SQL Database
12 6 (16.67%) MySQL
12 6 (16.67%) SQLite

Objective-C
Top Related 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 2 (5.56%) Confluence
2 1 (2.78%) JBoss
2 1 (2.78%) Tomcat
Cloud Services
1 6 (16.67%) Microsoft Azure
1 6 (16.67%) TestFlight
Communications & Networking
1 2 (5.56%) HTTP
Database & Business Intelligence
1 6 (16.67%) Azure SQL Database
1 6 (16.67%) CouchDB
1 6 (16.67%) MongoDB
1 6 (16.67%) MySQL
1 6 (16.67%) SQLite
2 1 (2.78%) NoSQL
Development Applications
1 7 (19.44%) Git (software)
2 6 (16.67%) Xcode
3 3 (8.33%) Appium
3 3 (8.33%) Calabash
3 3 (8.33%) Selenium
3 3 (8.33%) WebDriver
4 2 (5.56%) Jenkins
4 2 (5.56%) JIRA
5 1 (2.78%) Ant
5 1 (2.78%) Appcelerator Titanium
5 1 (2.78%) Bitbucket
5 1 (2.78%) Cucumber
5 1 (2.78%) Maven
5 1 (2.78%) Subversion
General
1 3 (8.33%) Finance
2 2 (5.56%) Games
3 1 (2.78%) Advertising
3 1 (2.78%) Back Office
3 1 (2.78%) Banking
3 1 (2.78%) Marketing
3 1 (2.78%) Retail
Job Titles
1 29 (80.56%) Developer
2 23 (63.89%) iOS Developer
3 8 (22.22%) Senior Developer
3 8 (22.22%) Senior iOS Developer
4 3 (8.33%) Android Developer
4 3 (8.33%) iOS Android Developer
5 2 (5.56%) Lead Developer
5 2 (5.56%) Lead iOS Developer
5 2 (5.56%) Mobile Developer
5 2 (5.56%) Mobile Engineer
5 2 (5.56%) QA Engineer
6 1 (2.78%) Applications Developer
6 1 (2.78%) C Developer
6 1 (2.78%) C/C++ Developer
6 1 (2.78%) C++ Developer
6 1 (2.78%) Java Developer
6 1 (2.78%) PHP Developer
6 1 (2.78%) Senior Software Engineer
6 1 (2.78%) Software Engineer
6 1 (2.78%) SQL Developer
Libraries, Frameworks & Software Standards
1 15 (41.67%) REST
2 11 (30.56%) Web Services
3 10 (27.78%) Cocoa
4 8 (22.22%) RESTful
4 8 (22.22%) SOAP
5 7 (19.44%) Cocoa Touch
6 5 (13.89%) JSON
7 4 (11.11%) Core Data
7 4 (11.11%) iOS SDK
8 3 (8.33%) Apache Cordova
8 3 (8.33%) HTML
8 3 (8.33%) HTML5
8 3 (8.33%) PhoneGap
8 3 (8.33%) Unity (Game Engine)
9 2 (5.56%) CSS
9 2 (5.56%) CSS3
9 2 (5.56%) UIKit
9 2 (5.56%) XML
10 1 (2.78%) AngularJS
10 1 (2.78%) Laravel
Miscellaneous
1 12 (33.33%) Mobile App
2 5 (13.89%) iPhone
2 5 (13.89%) User Experience
3 3 (8.33%) iPad
4 2 (5.56%) Enterprise Software
4 2 (5.56%) Social Media
5 1 (2.78%) Augmented Reality
5 1 (2.78%) Data Structures
5 1 (2.78%) Fintech
5 1 (2.78%) Motion Graphics
5 1 (2.78%) N-Tier
5 1 (2.78%) Social Gaming
5 1 (2.78%) Streaming Video
5 1 (2.78%) Wiki
Operating Systems
1 34 (94.44%) Apple iOS
2 9 (25.00%) Android
3 2 (5.56%) Linux
Processes & Methodologies
1 27 (75.00%) iOS Development
2 21 (58.33%) Agile Software Development
3 15 (41.67%) TDD
4 11 (30.56%) Continuous Integration
5 10 (27.78%) E-Commerce
5 10 (27.78%) Scrum
6 9 (25.00%) Software Engineering
7 8 (22.22%) Unit Testing
8 6 (16.67%) Progressive Enhancement
8 6 (16.67%) Test Automation
9 5 (13.89%) Mobile Development
10 4 (11.11%) Android Development
10 4 (11.11%) BDD
10 4 (11.11%) OO
11 3 (8.33%) Manual Testing
11 3 (8.33%) Performance Testing
11 3 (8.33%) Release Management
11 3 (8.33%) Workflow
12 2 (5.56%) OOP
12 2 (5.56%) User Stories
Programming Languages
1 29 (80.56%) Apple Swift
2 7 (19.44%) Java
2 7 (19.44%) SQL
3 3 (8.33%) C++
4 2 (5.56%) C
4 2 (5.56%) C#
5 1 (2.78%) ActionScript
5 1 (2.78%) JavaScript
5 1 (2.78%) PHP
5 1 (2.78%) Ruby
5 1 (2.78%) SPARQL
Quality Assurance & Compliance
1 5 (13.89%) QA
Vendors
1 7 (19.44%) Apple
2 1 (2.78%) Appcelerator
2 1 (2.78%) Facebook
2 1 (2.78%) Google
2 1 (2.78%) Kony
2 1 (2.78%) Sencha
2 1 (2.78%) Xamarin
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