Period
to 24 February 2018

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 24 February 2018 with a comparison to the same period in the previous 2 years.

Apple Core Data
UK
6 months to
24 Feb 2018
Same period 2017 Same period 2016
Rank 1101 1073 1062
Rank change year-on-year -28 -11 -20
Permanent jobs citing Core Data 71 99 242
As % of all permanent IT jobs advertised in the UK 0.041% 0.056% 0.11%
As % of the Libraries, Frameworks & Software Standards category 0.099% 0.14% 0.30%
Number of salaries quoted 63 107 205
UK median annual salary £47,500 £45,000 £47,500
Median salary % change year-on-year +5.56% -5.26% -5.00%
10th Percentile £32,500 £22,000 £35,500
90th Percentile £70,000 £71,250 £77,000
UK excluding London median annual salary £47,500 £34,500 £45,000
% change year-on-year +37.68% -23.33% -

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 71,359 69,455 81,372
As % of all permanent IT jobs advertised in the UK 40.74% 39.54% 38.55%
Number of salaries quoted 60,296 59,787 69,786
UK median annual salary £50,000 £47,500 £45,000
Median salary % change year-on-year +5.26% +5.56% -
10th Percentile £30,000 £29,000 £28,000
90th Percentile £78,750 £76,250 £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 24 February 2018.

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 24 February 2018. 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 -21 59 £47,500 +14.46% 23
UK excluding London -22 50 £47,500 +37.68% 22
London -13 21 £57,500 - 7
East of England +8 14 £47,500 -26.92% 3
Scotland -30 11 £52,500 -4.55% 6
South East -1 10 £31,250 -26.47%
North of England +3 7 £42,500 -10.53% 6
Midlands 0 5 £43,300 +80.42% 5
West Midlands -7 5 £43,300 +80.42% 5
North West +9 4 £40,000 -5.88% 4
Yorkshire +11 3 £45,000 -14.29% 1
South West - 2 £41,250 - 2
Wales +14 1 - -

For the 6 months to 24 February 2018, IT jobs citing Core Data also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads with a requirement for Core Data.

1 69 (97.18%) Apple iOS
2 64 (90.14%) iOS Development
2 64 (90.14%) Apple Swift
3 45 (63.38%) Objective-C
4 34 (47.89%) Agile Software Development
5 33 (46.48%) User Experience
6 29 (40.85%) Mobile App
7 28 (39.44%) JSON
8 24 (33.80%) TDD
9 23 (32.39%) OO
10 22 (30.99%) Web Services
11 21 (29.58%) Apple
11 21 (29.58%) MVC
11 21 (29.58%) REST
12 20 (28.17%) Continuous Integration
12 20 (28.17%) RESTful
12 20 (28.17%) Xcode
13 18 (25.35%) Mobile Development
14 17 (23.94%) Continuous Deployment
14 17 (23.94%) OOP
15 16 (22.54%) Android
15 16 (22.54%) Test Automation
16 15 (21.13%) Cocoa Touch
16 15 (21.13%) Cocoa
17 14 (19.72%) OOD
17 14 (19.72%) UIKit
17 14 (19.72%) CocoaPods
18 13 (18.31%) Concurrent Programming
18 13 (18.31%) AWS Lambda
18 13 (18.31%) SOLID

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 4 (5.63%) CMS
1 4 (5.63%) Sitecore CMS
Cloud Services
1 13 (18.31%) Amazon AWS
1 13 (18.31%) AWS Lambda
1 13 (18.31%) Serverless
2 4 (5.63%) SaaS
3 3 (4.23%) Firebase
3 3 (4.23%) GitHub
3 3 (4.23%) Google Analytics
3 3 (4.23%) Slack
3 3 (4.23%) Trello
4 1 (1.41%) Google Play
Communications & Networking
1 2 (2.82%) Bluetooth
1 2 (2.82%) HTTP
1 2 (2.82%) SSL
1 2 (2.82%) Wi-Fi
Database & Business Intelligence
1 3 (4.23%) Big Data
Development Applications
1 20 (28.17%) Xcode
2 14 (19.72%) CocoaPods
3 13 (18.31%) Git (software)
4 7 (9.86%) Crashlytics
5 4 (5.63%) Android Studio
5 4 (5.63%) JIRA
6 3 (4.23%) git-flow
6 3 (4.23%) Gradle
7 2 (2.82%) Appium
7 2 (2.82%) Team Foundation Server
8 1 (1.41%) Eclipse
8 1 (1.41%) Visual Studio
General
1 4 (5.63%) Advertising
1 4 (5.63%) Marketing
2 2 (2.82%) Automotive
2 2 (2.82%) Banking
2 2 (2.82%) Finance
2 2 (2.82%) Publishing
2 2 (2.82%) Retail
Job Titles
1 70 (98.59%) Developer
2 63 (88.73%) iOS Developer
3 21 (29.58%) Applications Developer
4 15 (21.13%) Senior Developer
5 10 (14.08%) Mobile Developer
5 10 (14.08%) Senior iOS Developer
6 8 (11.27%) Android Developer
6 8 (11.27%) Mobile Applications Developer
7 6 (8.45%) iOS Android Developer
7 6 (8.45%) Lead Developer
7 6 (8.45%) Lead iOS Developer
7 6 (8.45%) Objective-C Developer
8 4 (5.63%) Lead Android Developer
8 4 (5.63%) Senior Applications Developer
8 4 (5.63%) Senior Mobile Applications Developer
8 4 (5.63%) Senior Mobile Developer
9 3 (4.23%) Graduate
9 3 (4.23%) Graduate Developer
10 2 (2.82%) Web Developer
11 1 (1.41%) Senior Web Developer
Libraries, Frameworks & Software Standards
1 28 (39.44%) JSON
2 22 (30.99%) Web Services
3 21 (29.58%) REST
4 20 (28.17%) RESTful
5 15 (21.13%) Cocoa
5 15 (21.13%) Cocoa Touch
6 14 (19.72%) UIKit
7 13 (18.31%) Core Animation
7 13 (18.31%) Django
8 12 (16.90%) iOS SDK
9 9 (12.68%) HTML
10 8 (11.27%) Unity (Game Engine)
11 7 (9.86%) CSS
11 7 (9.86%) XML
12 5 (7.04%) HTML5
13 3 (4.23%) Android SDK
13 3 (4.23%) CSS3
13 3 (4.23%) jQuery
14 2 (2.82%) AngularJS
14 2 (2.82%) Ionic Framework
Miscellaneous
1 33 (46.48%) User Experience
2 29 (40.85%) Mobile App
3 13 (18.31%) Algorithms
3 13 (18.31%) Animation
4 8 (11.27%) Augmented Reality
4 8 (11.27%) iPhone
5 6 (8.45%) iPad
5 6 (8.45%) Social Media
6 3 (4.23%) Computer Science
6 3 (4.23%) Fintech
7 2 (2.82%) Enterprise Software
7 2 (2.82%) Foreign Exchange (FX)
8 1 (1.41%) Greenfield Project
Operating Systems
1 69 (97.18%) Apple iOS
2 16 (22.54%) Android
Processes & Methodologies
1 64 (90.14%) iOS Development
2 34 (47.89%) Agile Software Development
3 24 (33.80%) TDD
4 23 (32.39%) OO
5 21 (29.58%) MVC
6 20 (28.17%) Continuous Integration
7 18 (25.35%) Mobile Development
8 17 (23.94%) Continuous Deployment
8 17 (23.94%) OOP
9 16 (22.54%) Test Automation
10 14 (19.72%) OOD
11 13 (18.31%) Auto-Scaling
11 13 (18.31%) Concurrent Programming
11 13 (18.31%) CRM
11 13 (18.31%) Dependency Injection
11 13 (18.31%) Domain Models
11 13 (18.31%) Kanban
11 13 (18.31%) Memory Management
11 13 (18.31%) SOLID
12 11 (15.49%) Performance Tuning
Programming Languages
1 64 (90.14%) Apple Swift
2 45 (63.38%) Objective-C
3 13 (18.31%) Java
4 10 (14.08%) JavaScript
5 7 (9.86%) Kotlin
6 2 (2.82%) PHP
7 1 (1.41%) C#
7 1 (1.41%) SQL
Qualifications
1 3 (4.23%) Computer Science Degree
1 3 (4.23%) Degree
Quality Assurance & Compliance
1 4 (5.63%) QA
Systems Management
1 13 (18.31%) Single Sign-On
Vendors
1 21 (29.58%) Apple
2 6 (8.45%) Google
3 4 (5.63%) Sitecore
3 4 (5.63%) Xamarin