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 31 August 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
31 Aug 2016
Same period 2015 Same period 2014
Java Native Interface (JNI)
Rank 641 654 624
Rank change year-on-year
+13 -30
Contract jobs citing JNI 4 8 12
As % of all contract IT jobs located in the UK 0.007% 0.014% 0.022%
As % of the Libraries, Frameworks & Software Standards category 0.025% 0.049% 0.077%
Number of daily rates quoted 2 1 5
Median daily rate £475 £400 £553
Median daily rate % change year-on-year
+18.75% -27.60%
UK excluding London median daily rate - - £300
Number of hourly rates quoted 0 3 4
Median hourly rate - £40.00 £30.00
Median hourly rate % change year-on-year
- +33.33%
UK excluding London median hourly rate - £40.00 £30.00
% change year-on-year
- +33.33%

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
16167 16419 15518
As % of all contract IT jobs located in the UK 29.92% 28.02% 27.88%
Number of daily rates quoted 11211 11157 9833
Median daily rate £415 £400 £375
Median daily rate % change year-on-year
+3.75% +6.66%
90% offered a daily rate of more than £300 £288 £270
10% offered a daily rate of more than £550 £550 £525
UK excluding London median daily rate £375 £368 £350
% change year-on-year
+2.04% +5.00%
Number of hourly rates quoted 218 289 216
Median hourly rate £40.00 £38.89 £35.00
Median hourly rate % change year-on-year
+2.86% +11.10%
90% offered a hourly rate of more than £19.75 £17.50 £17.50
10% offered a hourly rate of more than £52.00 £52.17 £71.00
UK excluding London median hourly rate £40.00 £39.25 £35.00
% change year-on-year
+1.91% +12.14%

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 6 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 31 August 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 +2 4 £475 +18.75%
South East +7 2 - -
London -20 2 £475 +18.75%
Milton Keynes - 1 - -
Buckinghamshire - 1 - -
Hampshire - 1 - -

JNI
Top 30 Related IT Skills

For the 6 months to 31 August 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 7 (100.00%) Java
2 6 (85.71%) Spring
3 5 (71.43%) Agile Software Development
3 5 (71.43%) REST
3 5 (71.43%) Risk Management
3 5 (71.43%) Oracle
4 4 (57.14%) Platform Symphony
4 4 (57.14%) Multithreading
4 4 (57.14%) Parallel Programming
4 4 (57.14%) Banking
4 4 (57.14%) Investment Banking
4 4 (57.14%) Oracle Coherence
4 4 (57.14%) Credit Risk
4 4 (57.14%) Market Risk
4 4 (57.14%) Continuous Delivery
4 4 (57.14%) Garbage Collection
4 4 (57.14%) Apache Cassandra
5 2 (28.57%) JSON
5 2 (28.57%) Dependency Injection
6 1 (14.29%) Mockito
6 1 (14.29%) Kanban
6 1 (14.29%) Android
6 1 (14.29%) Git (software)
6 1 (14.29%) RESTful
6 1 (14.29%) Android SDK
6 1 (14.29%) Android Development
6 1 (14.29%) Android NDK
6 1 (14.29%) RxJava
6 1 (14.29%) Appium
6 1 (14.29%) RoboGuice

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 4 (57.14%) Oracle Coherence
2 1 (14.29%) WebLogic
2 1 (14.29%) WebSphere
Business Applications
1 1 (14.29%) Murex MxG2000
Database & Business Intelligence
1 4 (57.14%) Apache Cassandra
Development Applications
1 1 (14.29%) Ant
1 1 (14.29%) Appium
1 1 (14.29%) Artifactory
1 1 (14.29%) Atlassian Bamboo
1 1 (14.29%) Git (software)
1 1 (14.29%) Gradle
1 1 (14.29%) Jenkins
1 1 (14.29%) Maven
1 1 (14.29%) Mockito
1 1 (14.29%) Robotium
1 1 (14.29%) Sonatype Nexus
1 1 (14.29%) Subversion
1 1 (14.29%) Travis CI
General
1 4 (57.14%) Banking
1 4 (57.14%) Investment Banking
2 1 (14.29%) Finance
2 1 (14.29%) Front Office
2 1 (14.29%) Publishing
Job Titles
1 7 (100.00%) Developer
1 7 (100.00%) Java Developer
2 1 (14.29%) Agile Developer
2 1 (14.29%) Agile Java Developer
2 1 (14.29%) Analyst
2 1 (14.29%) Analyst Developer
2 1 (14.29%) Analyst Programmer
2 1 (14.29%) Android Developer
2 1 (14.29%) Java Analyst Developer
2 1 (14.29%) Java Analyst Programmer
2 1 (14.29%) Java Android Developer
2 1 (14.29%) Java Programmer
2 1 (14.29%) Programmer
2 1 (14.29%) Risk Analyst
2 1 (14.29%) Systems Analyst
2 1 (14.29%) Systems Analyst Programmer
2 1 (14.29%) Systems Developer
2 1 (14.29%) Systems Programmer
Libraries, Frameworks & Software Standards
1 6 (85.71%) Spring
2 5 (71.43%) REST
3 2 (28.57%) JSON
4 1 (14.29%) Android NDK
4 1 (14.29%) Android SDK
4 1 (14.29%) FIX Protocol
4 1 (14.29%) Hibernate
4 1 (14.29%) J2EE
4 1 (14.29%) J2SE
4 1 (14.29%) Java EE
4 1 (14.29%) Java SE
4 1 (14.29%) JMS
4 1 (14.29%) Murex Flex
4 1 (14.29%) RESTful
4 1 (14.29%) RoboGuice
4 1 (14.29%) RxJava
4 1 (14.29%) Spring Integration
4 1 (14.29%) XML
4 1 (14.29%) XSLT
Miscellaneous
1 4 (57.14%) Credit Risk
1 4 (57.14%) Market Risk
2 1 (14.29%) Foreign Exchange (FX)
2 1 (14.29%) Mathematics
Operating Systems
1 1 (14.29%) Android
1 1 (14.29%) Linux
1 1 (14.29%) Unix
Processes & Methodologies
1 5 (71.43%) Agile Software Development
1 5 (71.43%) Risk Management
2 4 (57.14%) Continuous Delivery
2 4 (57.14%) Garbage Collection
2 4 (57.14%) Multithreading
2 4 (57.14%) Parallel Programming
3 2 (28.57%) Dependency Injection
4 1 (14.29%) Android Development
4 1 (14.29%) Automated Testing
4 1 (14.29%) Continuous Integration
4 1 (14.29%) Kanban
4 1 (14.29%) OO
4 1 (14.29%) OOP
4 1 (14.29%) Scrum
4 1 (14.29%) Unit Testing
4 1 (14.29%) User Stories
4 1 (14.29%) Workflow
Programming Languages
1 7 (100.00%) Java
2 1 (14.29%) C#
2 1 (14.29%) C++
2 1 (14.29%) Python
System Software
1 4 (57.14%) Platform Symphony
Vendors
1 5 (71.43%) Oracle
2 1 (14.29%) Adobe
2 1 (14.29%) Bloomberg
2 1 (14.29%) Murex
2 1 (14.29%) Reuters
2 1 (14.29%) Sybase