Period
to 12 December 2017

The following table provides summary statistics for permanent job vacancies with a requirement for Core Data skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Core Data over the 6 months to 12 December 2017 with a comparison to the same period in the previous 2 years.

Apple Core Data
UK
6 months to
12 Dec 2017
Same period 2016 Same period 2015
Rank 1101 1088 1053
Rank change year-on-year -13 -35 +80
Permanent jobs citing Core Data 79 144 231
As % of all permanent IT jobs advertised in the UK 0.044% 0.077% 0.11%
As % of the Libraries, Frameworks & Software Standards category 0.11% 0.20% 0.28%
Number of salaries quoted 75 134 192
UK median annual salary £47,500 £54,000 £47,500
Median salary % change year-on-year -12.04% +13.68% -
10th Percentile £30,000 £31,075 £36,250
90th Percentile £72,500 £75,000 £72,375
UK excluding London median annual salary £42,500 £45,000 £45,000
% change year-on-year -5.56% - -

Core Data is in the Software Libraries and Frameworks category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
UK
Permanent vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 71856 72784 81265
As % of all permanent IT jobs advertised in the UK 40.06% 39.08% 37.98%
Number of salaries quoted 59850 63041 69745
UK median annual salary £50,000 £47,500 £45,000
Median salary % change year-on-year +5.26% +5.56% +2.27%
10th Percentile £29,750 £28,750 £27,500
90th Percentile £77,500 £77,500 £75,000
UK excluding London median annual salary £42,500 £42,500 £40,000
% change year-on-year - +6.25% -

Core Data
Job Vacancy Trend

Job postings citing Core Data as a percentage of all IT jobs advertised.

Job vacancy trend for Core Data in the UK

Core Data
Salary Trend

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing Core Data.

Salary trend for Core Data in the UK

Core Data
Salary Histogram

The salary distribution of IT jobs citing Core Data over the 6 months to 12 December 2017.

Salary histogram for Core Data in the UK

Core Data
Top 13 Job Locations

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing Core Data within the UK over the 6 months to 12 December 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
England -33 68 £45,000 -18.18% 13
UK excluding London -1 52 £42,500 -5.56% 7
London -31 27 £67,500 +3.85% 7
South East +22 15 £35,000 -22.22% 2
North of England +15 11 £41,500 -7.78%
North West -3 10 £41,500 -7.78%
Scotland -33 10 £52,500 +9.38% 1
East of England 0 8 £47,500 -5.00%
West Midlands +18 5 £36,250 +51.04% 4
Midlands +16 5 £36,250 +51.04% 4
South West -2 3 £35,000 -36.36%
Wales +17 1 - -
Yorkshire - 1 £55,000 -

For the 6 months to 12 December 2017, IT jobs citing Core Data also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads with a requirement for Core Data.

1 70 (88.61%) Apple iOS
2 68 (86.08%) iOS Development
3 47 (59.49%) Objective-C
4 45 (56.96%) Agile Software Development
5 44 (55.70%) Apple Swift
6 38 (48.10%) Mobile App
7 32 (40.51%) Android
8 31 (39.24%) RESTful
9 28 (35.44%) Continuous Integration
9 28 (35.44%) Apple
10 26 (32.91%) User Experience
11 24 (30.38%) Android Development
11 24 (30.38%) JSON
12 23 (29.11%) Git (software)
12 23 (29.11%) OO
12 23 (29.11%) TDD
13 21 (26.58%) Cocoa
14 19 (24.05%) MVC
14 19 (24.05%) Test Automation
14 19 (24.05%) Mobile Development
15 18 (22.78%) UIKit
16 17 (21.52%) Xcode
17 16 (20.25%) JavaScript
17 16 (20.25%) Cocoa Touch
18 15 (18.99%) Unit Testing
18 15 (18.99%) HTML
18 15 (18.99%) Web Services
19 14 (17.72%) XML
19 14 (17.72%) OOP
19 14 (17.72%) Memory Management

Core Data
Co-occurring IT Skills 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 (1.27%) CMS
1 1 (1.27%) Sitecore CMS
Cloud Services
1 7 (8.86%) Amazon AWS
1 7 (8.86%) AWS Lambda
1 7 (8.86%) Serverless
2 4 (5.06%) Google Play
3 2 (2.53%) SaaS
Database & Business Intelligence
1 1 (1.27%) Big Data
Development Applications
1 23 (29.11%) Git (software)
2 17 (21.52%) Xcode
3 8 (10.13%) Android Studio
4 7 (8.86%) Appium
5 6 (7.59%) Calabash
6 3 (3.80%) CocoaPods
7 2 (2.53%) JIRA
8 1 (1.27%) Crashlytics
8 1 (1.27%) Eclipse
8 1 (1.27%) Gradle
8 1 (1.27%) Selenium
8 1 (1.27%) Visual Studio
General
1 8 (10.13%) Advertising
2 7 (8.86%) Finance
3 6 (7.59%) Banking
4 2 (2.53%) Publishing
4 2 (2.53%) Retail
5 1 (1.27%) Games
5 1 (1.27%) Marketing
Job Titles
1 77 (97.47%) Developer
2 66 (83.54%) iOS Developer
3 15 (18.99%) Android Developer
4 13 (16.46%) Lead Developer
5 11 (13.92%) Lead iOS Developer
6 9 (11.39%) Applications Developer
7 8 (10.13%) Senior Developer
8 7 (8.86%) Junior
8 7 (8.86%) Junior Developer
8 7 (8.86%) Mobile Developer
9 6 (7.59%) Junior iOS Developer
9 6 (7.59%) Objective-C Developer
10 5 (6.33%) iOS Android Developer
10 5 (6.33%) Senior iOS Developer
11 3 (3.80%) Lead Android Developer
11 3 (3.80%) Web Developer
12 2 (2.53%) Mobile Applications Developer
12 2 (2.53%) Senior Android Developer
13 1 (1.27%) iPhone Developer
13 1 (1.27%) Senior Mobile Applications Developer
Libraries, Frameworks & Software Standards
1 31 (39.24%) RESTful
2 24 (30.38%) JSON
3 21 (26.58%) Cocoa
4 18 (22.78%) UIKit
5 16 (20.25%) Cocoa Touch
6 15 (18.99%) HTML
6 15 (18.99%) Web Services
7 14 (17.72%) XML
8 13 (16.46%) REST
9 12 (15.19%) HTML5
10 11 (13.92%) Core Animation
11 10 (12.66%) iOS SDK
12 8 (10.13%) Android SDK
13 7 (8.86%) Django
13 7 (8.86%) Unity (Game Engine)
14 6 (7.59%) AVFoundation
15 5 (6.33%) CSS
15 5 (6.33%) jQuery
15 5 (6.33%) Node.js
16 3 (3.80%) Ajax
Miscellaneous
1 38 (48.10%) Mobile App
2 26 (32.91%) User Experience
3 13 (16.46%) iPhone
4 11 (13.92%) Animation
5 9 (11.39%) iPad
6 8 (10.13%) Computer Science
6 8 (10.13%) Smartphone
7 7 (8.86%) Algorithms
7 7 (8.86%) Augmented Reality
8 6 (7.59%) Foreign Exchange (FX)
9 3 (3.80%) Social Media
10 2 (2.53%) Enterprise Software
11 1 (1.27%) Mobile Games
11 1 (1.27%) Social Network
Operating Systems
1 70 (88.61%) Apple iOS
2 32 (40.51%) Android
3 8 (10.13%) Mac OS X
4 1 (1.27%) Mac OS
Processes & Methodologies
1 68 (86.08%) iOS Development
2 45 (56.96%) Agile Software Development
3 28 (35.44%) Continuous Integration
4 24 (30.38%) Android Development
5 23 (29.11%) OO
5 23 (29.11%) TDD
6 19 (24.05%) Mobile Development
6 19 (24.05%) MVC
6 19 (24.05%) Test Automation
7 15 (18.99%) Unit Testing
8 14 (17.72%) Memory Management
8 14 (17.72%) OOP
9 13 (16.46%) Kanban
9 13 (16.46%) Multithreading
10 12 (15.19%) Performance Tuning
11 11 (13.92%) SDLC
12 10 (12.66%) Push Notifications
12 10 (12.66%) Scrum
13 8 (10.13%) Benchmarking
13 8 (10.13%) OOD
Programming Languages
1 47 (59.49%) Objective-C
2 44 (55.70%) Apple Swift
3 16 (20.25%) JavaScript
4 10 (12.66%) Java
5 4 (5.06%) PHP
6 2 (2.53%) C#
7 1 (1.27%) Kotlin
7 1 (1.27%) SQL
Qualifications
1 9 (11.39%) Computer Science Degree
1 9 (11.39%) Degree
Quality Assurance & Compliance
1 4 (5.06%) QA
Vendors
1 28 (35.44%) Apple
2 11 (13.92%) Google
3 3 (3.80%) Microsoft
4 1 (1.27%) Facebook
4 1 (1.27%) Sitecore
4 1 (1.27%) Xamarin