The table below looks at the statistics for JNI skills in IT contracts advertised across the UK. Included is a guide to the contractor rates offered in IT contracts that have cited JNI over the 3 months to 9 December 2016 with a comparison to the same period over the previous 2 years.

Note that daily contractor rates and hourly contractor rates are treated separately. When calculating average contractor rates, daily rates are not derived from quoted hourly rates or vice versa.

3 months to
9 Dec 2016
Same period 2015 Same period 2014
Java Native Interface (JNI)
Rank 611 641 617
Rank change year-on-year
+30 -24
Contract jobs citing JNI 10 4 20
As % of all contract IT jobs located in the UK 0.020% 0.007% 0.035%
As % of the Libraries, Frameworks & Software Standards category 0.065% 0.025% 0.13%
Number of daily rates quoted 10 4 15
Median daily rate £400 £380 £350
Median daily rate % change year-on-year
+5.26% +8.57%
UK excluding London median daily rate - £380 £339
% change year-on-year
- +12.17%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

The following table is for comparison with the above and provides statistics for the entire Libraries, Frameworks & Software Standards category in contract jobs advertised across the UK.

Libraries, Frameworks & Software Standards Category
UK
Contract IT job ads with a match in the
Libraries, Frameworks & Software Standards category
15273 15835 15252
As % of all contract IT jobs located in the UK 30.81% 28.73% 27.04%
Number of daily rates quoted 10539 11026 10410
Median daily rate £425 £400 £400
Median daily rate % change year-on-year
+6.25% -
90% offered a daily rate of more than £305 £300 £275
10% offered a daily rate of more than £563 £550 £550
UK excluding London median daily rate £380 £375 £350
% change year-on-year
+1.33% +7.14%
Number of hourly rates quoted 144 255 172
Median hourly rate £40.00 £37.50 £35.00
Median hourly rate % change year-on-year
+6.66% +7.14%
90% offered a hourly rate of more than £16.08 £17.43 £17.50
10% offered a hourly rate of more than £50.00 £47.50 £54.00
UK excluding London median hourly rate £40.00 £37.50 £35.00
% change year-on-year
+6.66% +7.14%

JNI
Jobs Demand Trend

The demand trend of contract jobs citing JNI as a proportion of all IT contracts with a match in the Libraries, Frameworks & Software Standards category.

JNI Jobs Demand Trend in the UK

JNI
Daily Rate Trend

This chart provides the 3-month moving average for daily rates quoted in IT contract jobs citing JNI within the UK.

JNI Daily Rate Trend in the UK

JNI
Hourly Rate Trend

This chart provides the 3-month moving average for hourly rates quoted in IT contractor jobs citing JNI within the UK.

JNI Hourly Rate Trend in the UK

JNI
Top 2 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing JNI within the UK over the 3 months to 9 December 2016. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location
(Click see detailed
statistics and trends)
Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +14 10 £400 +5.26%
London - 10 £400 -

JNI
Top 30 Related IT Skills

For the 6 months to 9 December 2016, IT contractor jobs citing JNI also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads with a requirement for JNI.

1 13 (81.25%) Android
2 12 (75.00%) Android Studio
3 11 (68.75%) Gradle
3 11 (68.75%) Android SDK
3 11 (68.75%) Android Development
4 10 (62.50%) OpenGL
4 10 (62.50%) Apple iOS
4 10 (62.50%) iOS SDK
4 10 (62.50%) C++
5 9 (56.25%) C
5 9 (56.25%) Python
5 9 (56.25%) Algorithms
6 8 (50.00%) iOS Development
6 8 (50.00%) Augmented Reality
6 8 (50.00%) Xcode
6 8 (50.00%) Mobile Development
6 8 (50.00%) CocoaPods
6 8 (50.00%) Cross-Platform Development
7 7 (43.75%) Java
8 5 (31.25%) Agile Software Development
9 4 (25.00%) Multithreading
10 3 (18.75%) Spring
10 3 (18.75%) OO
10 3 (18.75%) REST
11 2 (12.50%) Parallel Programming
11 2 (12.50%) Dependency Injection
11 2 (12.50%) Android NDK
11 2 (12.50%) Continuous Delivery
11 2 (12.50%) MQTT
11 2 (12.50%) Apache Cassandra

JNI
Top Related 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 2 (12.50%) Oracle Coherence
Communications & Networking
1 2 (12.50%) MQTT
2 1 (6.25%) Internet
Database & Business Intelligence
1 2 (12.50%) Apache Cassandra
Development Applications
1 12 (75.00%) Android Studio
2 11 (68.75%) Gradle
3 8 (50.00%) CocoaPods
3 8 (50.00%) Xcode
4 1 (6.25%) Ant
4 1 (6.25%) Appium
4 1 (6.25%) Artifactory
4 1 (6.25%) Atlassian Bamboo
4 1 (6.25%) Git (software)
4 1 (6.25%) Jenkins
4 1 (6.25%) Maven
4 1 (6.25%) Mockito
4 1 (6.25%) Robotium
4 1 (6.25%) Sonatype Nexus
4 1 (6.25%) Subversion
4 1 (6.25%) Travis CI
General
1 2 (12.50%) Banking
1 2 (12.50%) Investment Banking
2 1 (6.25%) Games
2 1 (6.25%) Publishing
Job Titles
1 16 (100.00%) Developer
2 8 (50.00%) Mobile Developer
3 5 (31.25%) Android Developer
4 4 (25.00%) Java Developer
5 2 (12.50%) iOS Android Developer
5 2 (12.50%) iOS Developer
6 1 (6.25%) Agile Developer
6 1 (6.25%) Agile Java Developer
6 1 (6.25%) Applications Developer
6 1 (6.25%) C Developer
6 1 (6.25%) C/C++ Developer
6 1 (6.25%) C++ Developer
6 1 (6.25%) Java Android Developer
6 1 (6.25%) Python Developer
Libraries, Frameworks & Software Standards
1 11 (68.75%) Android SDK
2 10 (62.50%) iOS SDK
2 10 (62.50%) OpenGL
3 3 (18.75%) REST
3 3 (18.75%) Spring
4 2 (12.50%) Android NDK
4 2 (12.50%) JSON
4 2 (12.50%) XML
5 1 (6.25%) RESTful
5 1 (6.25%) RoboGuice
5 1 (6.25%) RxJava
5 1 (6.25%) Unity (Game Engine)
Miscellaneous
1 9 (56.25%) Algorithms
2 8 (50.00%) Augmented Reality
3 2 (12.50%) Credit Risk
3 2 (12.50%) Market Risk
4 1 (6.25%) Internet of Things
Operating Systems
1 13 (81.25%) Android
2 10 (62.50%) Apple iOS
Processes & Methodologies
1 11 (68.75%) Android Development
2 8 (50.00%) Cross-Platform Development
2 8 (50.00%) iOS Development
2 8 (50.00%) Mobile Development
3 5 (31.25%) Agile Software Development
4 4 (25.00%) Multithreading
5 3 (18.75%) OO
6 2 (12.50%) Continuous Delivery
6 2 (12.50%) Dependency Injection
6 2 (12.50%) Garbage Collection
6 2 (12.50%) Parallel Programming
6 2 (12.50%) Risk Management
7 1 (6.25%) Automated Testing
7 1 (6.25%) Continuous Integration
7 1 (6.25%) Kanban
7 1 (6.25%) OOP
7 1 (6.25%) Scrum
7 1 (6.25%) Unit Testing
7 1 (6.25%) User Stories
7 1 (6.25%) Workflow
Programming Languages
1 10 (62.50%) C++
2 9 (56.25%) C
2 9 (56.25%) Python
3 7 (43.75%) Java
4 1 (6.25%) Objective-C
System Software
1 2 (12.50%) Platform Symphony
Vendors
1 2 (12.50%) Oracle