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 27 May 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
27 May 2016
Same period 2015 Same period 2014
Java Native Interface (JNI)
Rank 653 618 612
Rank change year-on-year
-35 -6
Contract jobs citing JNI 3 9 3
As % of all contract IT jobs located in the UK 0.006% 0.017% 0.006%
As % of the Libraries, Frameworks & Software Standards category 0.020% 0.061% 0.021%
Number of daily rates quoted 3 6 3
Median daily rate £550 £650 £380
Median daily rate % change year-on-year
-15.38% +71.05%
90% offered a daily rate of more than £530 £438 £344
10% offered a daily rate of more than £630 £650 £384
UK excluding London median daily rate - £275 £360
% change year-on-year
- -23.61%
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
15110 14689 14482
As % of all contract IT jobs located in the UK 27.70% 27.00% 27.46%
Number of daily rates quoted 10708 9655 9625
Median daily rate £420 £388 £375
Median daily rate % change year-on-year
+8.38% +3.33%
90% offered a daily rate of more than £300 £280 £275
10% offered a daily rate of more than £575 £550 £525
UK excluding London median daily rate £375 £350 £350
% change year-on-year
+7.14% -
Number of hourly rates quoted 176 203 177
Median hourly rate £32.50 £35.00 £35.00
Median hourly rate % change year-on-year
-7.14% -
90% offered a hourly rate of more than £11.00 £17.86 £17.00
10% offered a hourly rate of more than £54.20 £47.83 £55.00
UK excluding London median hourly rate £31.90 £37.80 £35.00
% change year-on-year
-15.60% +8.00%

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
Daily Rate Histogram

This chart provides a histogram of daily rates quoted in contract IT jobs citing JNI within the UK over the 3 months to 27 May 2016.

JNI Daily Rate Histogram 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 27 May 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
London -9 3 £550 -15.38% 1
England -26 3 £550 -15.38% 4

JNI
Top 30 Related IT Skills

For the 6 months to 27 May 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 9 (100.00%) Java
2 6 (66.67%) Scrum
3 5 (55.56%) Agile Software Development
3 5 (55.56%) Spring
3 5 (55.56%) Maven
3 5 (55.56%) REST
4 4 (44.44%) Android
4 4 (44.44%) Android Development
4 4 (44.44%) Android NDK
5 3 (33.33%) User Stories
5 3 (33.33%) Appium
5 3 (33.33%) RoboGuice
5 3 (33.33%) Sonatype Nexus
5 3 (33.33%) Android SDK
5 3 (33.33%) Mockito
5 3 (33.33%) Git (software)
5 3 (33.33%) Test Automation
5 3 (33.33%) Dependency Injection
5 3 (33.33%) Robotium
5 3 (33.33%) Gradle
5 3 (33.33%) Artifactory
5 3 (33.33%) Subversion
5 3 (33.33%) Finance
5 3 (33.33%) Publishing
5 3 (33.33%) Automated Testing
5 3 (33.33%) JSON
5 3 (33.33%) Unit Testing
5 3 (33.33%) Risk Management
5 3 (33.33%) OOP
5 3 (33.33%) OO

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 (22.22%) Apache
1 2 (22.22%) Oracle Coherence
2 1 (11.11%) WebLogic
2 1 (11.11%) WebSphere
Business Applications
1 1 (11.11%) Murex MxG2000
Database & Business Intelligence
1 2 (22.22%) Apache Cassandra
Development Applications
1 5 (55.56%) Maven
2 3 (33.33%) Ant
2 3 (33.33%) Appium
2 3 (33.33%) Artifactory
2 3 (33.33%) Git (software)
2 3 (33.33%) Gradle
2 3 (33.33%) Mockito
2 3 (33.33%) Robotium
2 3 (33.33%) Sonatype Nexus
2 3 (33.33%) Subversion
3 2 (22.22%) Atlassian Bamboo
3 2 (22.22%) Jenkins
3 2 (22.22%) JUnit
3 2 (22.22%) Travis CI
General
1 3 (33.33%) Finance
1 3 (33.33%) Publishing
2 2 (22.22%) Banking
2 2 (22.22%) Financial Institution
2 2 (22.22%) Investment Banking
3 1 (11.11%) Front Office
Job Titles
1 9 (100.00%) Developer
2 6 (66.67%) Java Developer
3 4 (44.44%) Android Developer
4 1 (11.11%) Analyst
4 1 (11.11%) Analyst Developer
4 1 (11.11%) Analyst Programmer
4 1 (11.11%) C++ Developer
4 1 (11.11%) C++/Java Developer
4 1 (11.11%) Java Analyst Developer
4 1 (11.11%) Java Analyst Programmer
4 1 (11.11%) Java Android Developer
4 1 (11.11%) Java Programmer
4 1 (11.11%) Programmer
4 1 (11.11%) Risk Analyst
4 1 (11.11%) Systems Analyst
4 1 (11.11%) Systems Analyst Programmer
4 1 (11.11%) Systems Developer
4 1 (11.11%) Systems Programmer
Libraries, Frameworks & Software Standards
1 5 (55.56%) REST
1 5 (55.56%) Spring
2 4 (44.44%) Android NDK
3 3 (33.33%) Android SDK
3 3 (33.33%) J2EE
3 3 (33.33%) JMS
3 3 (33.33%) JSON
3 3 (33.33%) RoboGuice
3 3 (33.33%) XML
4 2 (22.22%) EJB
4 2 (22.22%) HTML
4 2 (22.22%) JDBC
4 2 (22.22%) JSP
4 2 (22.22%) RxJava
4 2 (22.22%) Servlets
4 2 (22.22%) Struts
5 1 (11.11%) FIX Protocol
5 1 (11.11%) J2SE
5 1 (11.11%) Spring Integration
5 1 (11.11%) XSLT
Miscellaneous
1 2 (22.22%) Credit Risk
1 2 (22.22%) Market Risk
2 1 (11.11%) Foreign Exchange (FX)
2 1 (11.11%) Mathematics
Operating Systems
1 4 (44.44%) Android
2 1 (11.11%) Linux
2 1 (11.11%) Unix
Processes & Methodologies
1 6 (66.67%) Scrum
2 5 (55.56%) Agile Software Development
3 4 (44.44%) Android Development
4 3 (33.33%) Automated Testing
4 3 (33.33%) Dependency Injection
4 3 (33.33%) OO
4 3 (33.33%) OOP
4 3 (33.33%) Risk Management
4 3 (33.33%) Test Automation
4 3 (33.33%) Unit Testing
4 3 (33.33%) User Stories
5 2 (22.22%) Continuous Delivery
5 2 (22.22%) Continuous Integration
5 2 (22.22%) Garbage Collection
5 2 (22.22%) Multithreading
5 2 (22.22%) Parallel Programming
5 2 (22.22%) Workflow
Programming Languages
1 9 (100.00%) Java
2 2 (22.22%) C++
2 2 (22.22%) JavaScript
3 1 (11.11%) C#
System Software
1 2 (22.22%) Platform Symphony
Vendors
1 3 (33.33%) Oracle
2 1 (11.11%) Adobe
2 1 (11.11%) Bloomberg
2 1 (11.11%) Murex
2 1 (11.11%) Reuters
2 1 (11.11%) Sybase