Period
to 21 November 2017

The median contractor rate for a Senior iOS Developer was £425 per day in advertised job vacancies in the City of London during the 6 months to 21 November 2017.

The first table below provides contractor rate benchmarking and summary statistics including a comparison to 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.

Senior iOS Developer
Central London > City of London
6 months to
21 Nov 2017
Same period 2016 Same period 2015
Rank 242 221 243
Rank change year-on-year -21 +22 +40
Contract jobs requiring a Senior iOS Developer 10 28 20
As % of all contract IT jobs advertised in the City of London 0.14% 0.42% 0.22%
As % of the Job Titles category 0.15% 0.44% 0.23%
Number of daily rates quoted 7 28 18
City of London median daily rate £425 £500 £450
Median daily rate % change year-on-year -15.00% +11.11% +5.88%
10th Percentile £359 £399 £375
90th Percentile £565 £575 £550
Central London median daily rate £425 £500 £475
% change year-on-year -15.00% +5.26% +11.76%
Number of hourly rates quoted 0 0 0
City of London median hourly rate - - -
Central London median hourly rate - - -

The following table is for comparison with the above and includes summary statistics for all contract IT job vacancies advertised in the City of London. Most job vacancies include a discernible job title that can be normalized. As such, the figures in the second row provide an indication of the number of contract jobs in our overall sample.

All Contract IT Job Vacancies
City of London
Contract vacancies in the City of London with a recognized job title 6761 6355 8632
% of contract IT jobs with a recognized job title 94.55% 95.52% 95.27%
Number of daily rates quoted 5338 5046 6770
City of London median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% +2.86%
10th Percentile £313 £313 £275
90th Percentile £688 £663 £650
Central London median daily rate £500 £475 £450
% change year-on-year +5.26% +5.56% +5.88%
Number of hourly rates quoted 94 77 127
City of London median hourly rate £17.00 £17.50 £19.00
Median hourly rate % change year-on-year -2.86% -7.89% +8.57%
10th Percentile £11.25 £11.50 £10.30
90th Percentile £29.29 £48.40 £39.25
Central London median hourly rate £18.10 £17.21 £18.00
% change year-on-year +5.19% -4.40% +5.88%

Senior iOS Developer
Job Vacancy Trend in the City of London

Job postings that featured Senior iOS Developer in the job title as a percentage of all IT jobs advertised in the City of London.

Job vacancy trend for Senior iOS Developer in the City of London

Senior iOS Developer
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 Senior iOS Developer in the City of London.

Contractor daily rate trend for Senior iOS Developer in the City of London

Senior iOS Developer
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing Senior iOS Developer in the City of London over the 6 months to 21 November 2017.

Contractor daily rate histogram for Senior iOS Developer in the City of London

Senior iOS Developer Skill Set
Top 30 Co-occurring IT Skills in the City of London

For the 6 months to 21 November 2017, Senior iOS Developer contract jobs required the following IT 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 featuring Senior iOS Developer in the job title.

1 10 (100.00%) Agile Software Development
1 10 (100.00%) Objective-C
1 10 (100.00%) Apple iOS
1 10 (100.00%) iOS Development
2 9 (90.00%) Apple Swift
3 7 (70.00%) TDD
4 5 (50.00%) JIRA
4 5 (50.00%) Git (software)
4 5 (50.00%) Scrum
4 5 (50.00%) Cocoa
4 5 (50.00%) Mobile App
5 4 (40.00%) iOS SDK
5 4 (40.00%) REST
5 4 (40.00%) Atlassian
6 3 (30.00%) Test Automation
6 3 (30.00%) OOP
6 3 (30.00%) Cocoa Touch
6 3 (30.00%) Jenkins
6 3 (30.00%) iPad
6 3 (30.00%) Continuous Integration
6 3 (30.00%) Android
6 3 (30.00%) iPhone
6 3 (30.00%) User Experience
7 2 (20.00%) TestFlight
7 2 (20.00%) Core Data
7 2 (20.00%) Crashlytics
7 2 (20.00%) Push Notifications
7 2 (20.00%) Adaptive Web Design
7 2 (20.00%) Confluence
7 2 (20.00%) Software Engineering

Senior iOS Developer Skill Set
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 (20.00%) Confluence
Cloud Services
1 2 (20.00%) GitHub
1 2 (20.00%) Microsoft Azure
1 2 (20.00%) TestFlight
Communications & Networking
1 2 (20.00%) Bluetooth
2 1 (10.00%) NFC
Database & Business Intelligence
1 2 (20.00%) Azure SQL Database
1 2 (20.00%) CouchDB
1 2 (20.00%) MongoDB
1 2 (20.00%) MySQL
1 2 (20.00%) SQLite
Development Applications
1 5 (50.00%) Git (software)
1 5 (50.00%) JIRA
2 3 (30.00%) Jenkins
3 2 (20.00%) Bitbucket
3 2 (20.00%) Crashlytics
3 2 (20.00%) Xcode
General
1 1 (10.00%) Retail
Libraries, Frameworks & Software Standards
1 5 (50.00%) Cocoa
2 4 (40.00%) iOS SDK
2 4 (40.00%) REST
3 3 (30.00%) Cocoa Touch
4 2 (20.00%) Core Animation
4 2 (20.00%) Core Data
4 2 (20.00%) CSS
4 2 (20.00%) CSS3
4 2 (20.00%) HTML
4 2 (20.00%) HTML5
4 2 (20.00%) RESTful
4 2 (20.00%) SOAP
4 2 (20.00%) UIKit
4 2 (20.00%) Web Services
4 2 (20.00%) WebKit
5 1 (10.00%) Android SDK
Miscellaneous
1 5 (50.00%) Mobile App
2 3 (30.00%) iPad
2 3 (30.00%) iPhone
2 3 (30.00%) User Experience
3 1 (10.00%) Blackberry
Operating Systems
1 10 (100.00%) Apple iOS
2 3 (30.00%) Android
3 1 (10.00%) Windows
Processes & Methodologies
1 10 (100.00%) Agile Software Development
1 10 (100.00%) iOS Development
2 7 (70.00%) TDD
3 5 (50.00%) Scrum
4 3 (30.00%) Continuous Integration
4 3 (30.00%) OOP
4 3 (30.00%) Test Automation
5 2 (20.00%) Adaptive Web Design
5 2 (20.00%) Dependency Management
5 2 (20.00%) E-Commerce
5 2 (20.00%) Low Latency
5 2 (20.00%) MVC
5 2 (20.00%) Progressive Enhancement
5 2 (20.00%) Push Notifications
5 2 (20.00%) Software Engineering
5 2 (20.00%) Unit Testing
6 1 (10.00%) Android Development
6 1 (10.00%) API Integration
6 1 (10.00%) Collaborative Working
6 1 (10.00%) Pair Programming
Programming Languages
1 10 (100.00%) Objective-C
2 9 (90.00%) Apple Swift
3 2 (20.00%) SQL
4 1 (10.00%) JavaScript
Vendors
1 4 (40.00%) Atlassian
2 2 (20.00%) Apple