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 23 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 Objective-C
London / City of London
3 months to
23 Jun 2017
Same period 2016 Same period 2015
Rank 142 136 165
Rank change year-on-year -6 +29  
Contract jobs citing Objective-C 24 28 36
As % of all contract IT jobs advertised in the City of London 0.73% 0.83% 0.62%
As % of the Programming Languages category 1.41% 1.71% 1.45%
Number of daily rates quoted 20 23 27
Median daily rate £463 £488 £413
Median daily rate % change year-on-year -5.12% +18.18%  
90% offered a daily rate of more than £393 £430 £280
10% offered a daily rate of more than £625 £525 £470
UK excluding London median daily rate £375 £400 £400
% change year-on-year -6.25% -  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £41.50 £28.50 £42.50
% change year-on-year +45.61% -32.94%  

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 1702 1637 2488
As % of all contract IT job vacancies advertised in the City of London 51.58% 48.37% 42.82%
Number of daily rates quoted 1371 1396 2052
Median daily rate £510 £475 £463
Median daily rate % change year-on-year +7.36% +2.70%  
90% offered a daily rate of more than £363 £325 £320
10% offered a daily rate of more than £650 £625 £625
UK excluding London median daily rate £400 £375 £350
% change year-on-year +6.66% +7.14%  
Number of hourly rates quoted 4 4 22
Median hourly rate £21.50 £53.00 £24.23
Median hourly rate % change year-on-year -59.43% +118.73%  
90% offered a hourly rate of more than £16.25 £19.00 £19.72
10% offered a hourly rate of more than £31.25 £80.00 £54.00
UK excluding London median hourly rate £42.50 £37.50 £36.50
% change year-on-year +13.33% +2.73%  

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 23 June 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 contractor hourly rates quoted in IT jobs citing Objective-C in the City of London.

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

For the 6 months to 23 June 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 38 (86.36%) Apple iOS
2 36 (81.82%) Agile Software Development
3 35 (79.55%) Apple Swift
4 34 (77.27%) iOS Development
5 23 (52.27%) TDD
6 22 (50.00%) REST
7 21 (47.73%) Scrum
8 15 (34.09%) HTML
8 15 (34.09%) Java
8 15 (34.09%) Android
8 15 (34.09%) Test Automation
8 15 (34.09%) HTML5
9 13 (29.55%) RESTful
9 13 (29.55%) MongoDB
9 13 (29.55%) PhoneGap
9 13 (29.55%) Mobile App
9 13 (29.55%) Web Services
10 12 (27.27%) CSS
10 12 (27.27%) Continuous Integration
11 11 (25.00%) Git (software)
11 11 (25.00%) Apple
11 11 (25.00%) Software Engineering
11 11 (25.00%) User Experience
12 10 (22.73%) Android Development
12 10 (22.73%) CouchDB
12 10 (22.73%) BDD
13 9 (20.45%) Node.js
13 9 (20.45%) iPad
13 9 (20.45%) iPhone
13 9 (20.45%) JSON

Objective-C
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 2 (4.55%) Apache Spark
1 2 (4.55%) Confluence
2 1 (2.27%) JBoss
Cloud Services
1 6 (13.64%) Microsoft Azure
2 4 (9.09%) TestFlight
3 3 (6.82%) Amazon AWS
4 1 (2.27%) Amazon SQS
4 1 (2.27%) Google Play
Communications & Networking
1 4 (9.09%) HTTP
2 1 (2.27%) Network Security
Database & Business Intelligence
1 13 (29.55%) MongoDB
2 10 (22.73%) CouchDB
3 6 (13.64%) Apache Cassandra
4 4 (9.09%) Azure SQL Database
4 4 (9.09%) MySQL
4 4 (9.09%) SQLite
5 3 (6.82%) NoSQL
Development Applications
1 11 (25.00%) Git (software)
2 6 (13.64%) JIRA
2 6 (13.64%) Selenium
3 5 (11.36%) Jenkins
4 4 (9.09%) Cucumber
4 4 (9.09%) Xcode
5 3 (6.82%) Appium
5 3 (6.82%) Calabash
5 3 (6.82%) Capybara
5 3 (6.82%) JUnit
5 3 (6.82%) WebDriver
6 1 (2.27%) Android Studio
6 1 (2.27%) Ant
6 1 (2.27%) Appcelerator Titanium
6 1 (2.27%) Bitbucket
6 1 (2.27%) CircleCI
6 1 (2.27%) git-flow
6 1 (2.27%) Maven
6 1 (2.27%) Subversion
General
1 6 (13.64%) Finance
2 5 (11.36%) Banking
2 5 (11.36%) Retail
3 2 (4.55%) Games
4 1 (2.27%) Advertising
4 1 (2.27%) Back Office
4 1 (2.27%) Corporate Banking
Job Titles
1 38 (86.36%) Developer
2 27 (61.36%) iOS Developer
3 9 (20.45%) Mobile Developer
4 8 (18.18%) Senior Developer
4 8 (18.18%) Senior iOS Developer
5 5 (11.36%) Android Developer
5 5 (11.36%) iOS Android Developer
6 3 (6.82%) Node.js Developer
7 2 (4.55%) Applications Developer
7 2 (4.55%) Front End Developer (Client-Side Developer)
7 2 (4.55%) Full Stack Developer
7 2 (4.55%) Java Developer
7 2 (4.55%) Lead Developer
7 2 (4.55%) Lead iOS Developer
7 2 (4.55%) Mobile Engineer
7 2 (4.55%) QA Engineer
8 1 (2.27%) C Developer
8 1 (2.27%) C++ Developer
8 1 (2.27%) SQL Developer
8 1 (2.27%) UI Developer
Libraries, Frameworks & Software Standards
1 22 (50.00%) REST
2 15 (34.09%) HTML
2 15 (34.09%) HTML5
3 13 (29.55%) PhoneGap
3 13 (29.55%) RESTful
3 13 (29.55%) Web Services
4 12 (27.27%) CSS
5 9 (20.45%) Cocoa
5 9 (20.45%) JSON
5 9 (20.45%) Node.js
5 9 (20.45%) React
5 9 (20.45%) SOAP
6 8 (18.18%) Apache Cordova
6 8 (18.18%) CSS3
7 7 (15.91%) jQuery
7 7 (15.91%) React Native
8 6 (13.64%) AngularJS
8 6 (13.64%) Core Data
9 5 (11.36%) Cocoa Touch
10 4 (9.09%) UIKit
Miscellaneous
1 13 (29.55%) Mobile App
2 11 (25.00%) User Experience
3 9 (20.45%) iPad
3 9 (20.45%) iPhone
4 8 (18.18%) Greenfield Project
5 5 (11.36%) Social Media
6 4 (9.09%) Enterprise Software
7 1 (2.27%) Augmented Reality
7 1 (2.27%) Data Structures
7 1 (2.27%) Mobile Banking
7 1 (2.27%) Motion Graphics
7 1 (2.27%) N-Tier
7 1 (2.27%) Social Gaming
7 1 (2.27%) Streaming Video
7 1 (2.27%) Wiki
Operating Systems
1 38 (86.36%) Apple iOS
2 15 (34.09%) Android
3 2 (4.55%) Linux
Processes & Methodologies
1 36 (81.82%) Agile Software Development
2 34 (77.27%) iOS Development
3 23 (52.27%) TDD
4 21 (47.73%) Scrum
5 15 (34.09%) Test Automation
6 12 (27.27%) Continuous Integration
7 11 (25.00%) Software Engineering
8 10 (22.73%) Android Development
8 10 (22.73%) BDD
9 9 (20.45%) Mobile Development
10 8 (18.18%) Cross-Platform Development
11 7 (15.91%) E-Commerce
11 7 (15.91%) OO
12 5 (11.36%) OOP
12 5 (11.36%) Unit Testing
12 5 (11.36%) User Stories
13 4 (9.09%) Adaptive Web Design
13 4 (9.09%) Continuous Delivery
13 4 (9.09%) Progressive Enhancement
13 4 (9.09%) Workflow
Programming Languages
1 35 (79.55%) Apple Swift
2 15 (34.09%) Java
3 8 (18.18%) JavaScript
4 6 (13.64%) C#
4 6 (13.64%) Python
4 6 (13.64%) Scala
5 5 (11.36%) SQL
6 3 (6.82%) C++
7 2 (4.55%) C
7 2 (4.55%) GraphQL
7 2 (4.55%) Ruby
8 1 (2.27%) ActionScript
8 1 (2.27%) Erlang
8 1 (2.27%) F#
8 1 (2.27%) PHP
8 1 (2.27%) SPARQL
Quality Assurance & Compliance
1 4 (9.09%) QA
System Software
1 1 (2.27%) Docker
Systems Management
1 1 (2.27%) Terraform
Vendors
1 11 (25.00%) Apple
2 4 (9.09%) Xamarin
3 3 (6.82%) Telerik
4 2 (4.55%) Google
5 1 (2.27%) Appcelerator
5 1 (2.27%) Facebook
5 1 (2.27%) Kony
5 1 (2.27%) Sencha
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