The first table below looks at the demand for JNI skills in IT contracts advertised across the UK. Included is a guide to the average contractor rates offered in IT contracts that have cited JNI over the 3 months to 16 April 2014 with a comparison to the same period in the previous 2 years. The second table is for comparison and provides aggregates for all of the Libraries, Frameworks & Software Standards category.

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.

Location
3 months to
16 Apr 2014
Same period 2013 Same period 2012
Java Native Interface (JNI)
Rank 599 538 585
Rank change year-on-year
-61 +47
Contract jobs citing JNI 4 14 7
As % of all contract IT jobs located in the UK 0.007% 0.029% 0.012%
As % of the Libraries, Frameworks & Software Standards category 0.026% 0.11% 0.046%
Number of daily rates quoted 4 11 4
Average daily rate £383 £350 £375
Average daily rate % change year-on-year
+9.28% -6.66%
UK excluding London average daily rate £360 £350 -
% change year-on-year
+2.85% -
Number of hourly rates quoted 0 0 0
Average hourly rate - - -
UK excluding London average hourly rate - - -
Libraries, Frameworks & Software Standards Category
UK
Contract IT job ads with a match in the
Libraries, Frameworks & Software Standards category
15377 12977 15258
As % of all contract IT jobs located in the UK 26.75% 26.71% 25.18%
Number of daily rates quoted 9880 8116 8998
Average daily rate £375 £370 £350
Average daily rate % change year-on-year
+1.35% +5.71%
90% offered a daily rate of more than £263 £255 £250
10% offered a daily rate of more than £513 £550 £550
UK excluding London average daily rate £330 £325 £325
% change year-on-year
+1.53% -
Number of hourly rates quoted 231 361 383
Average hourly rate £35.00 £35.00 £32.00
Average hourly rate % change year-on-year
- +9.37%
90% offered a hourly rate of more than £18.00 £17.00 £15.00
10% offered a hourly rate of more than £66.95 £44.50 £45.00
UK excluding London average hourly rate £35.00 £35.00 £31.00
% change year-on-year
- +12.90%

JNI
Jobs Demand Trend

This chart provides the 3-month moving total of IT contractor jobs citing JNI within the UK as a proportion of the total demand within 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 16 April 2014.

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 10 Contract Locations

The table below looks at the demand and provides a guide to the average contractor rates quoted in IT jobs citing JNI within the UK over the 3 months to 16 April 2014. 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 each for more statistics)
Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Average
Daily Rate
Last 3 Months
Average Daily Rate
% Change
on Same Period
Last Year
Find
Job
Vacancies
London -39 2 £428 -36.66% 3
England -47 2 £428 +22.14% 3
East of England - - - -
Gateshead - - - -
Hertford - - - -
Newcastle upon Tyne - - - -
Hertfordshire - - - -
City of London - - - -
North East - - - -
Tyne and Wear - - - -

JNI
Top 30 Related IT Skills

For the 6 months to 16 April 2014, IT contractor jobs within the UK citing JNI also mentioned the following IT skills in order of popularity. The figures indicate the number of jobs and their proportion against the total number of contract IT job ads sampled that cited JNI.

1 8 (100.00%) Java
2 5 (62.50%) Java SE
3 4 (50.00%) C++
3 4 (50.00%) Android
3 4 (50.00%) Git (software)
3 4 (50.00%) Android Development
4 3 (37.50%) Android NDK
4 3 (37.50%) Hamcrest
4 3 (37.50%) jMock
4 3 (37.50%) Unit Testing
4 3 (37.50%) Kanban
4 3 (37.50%) Java EE
4 3 (37.50%) Refactoring
4 3 (37.50%) Hibernate
4 3 (37.50%) Spring
4 3 (37.50%) Agile Software Development
4 3 (37.50%) Subversion
4 3 (37.50%) OO
4 3 (37.50%) Blackberry
4 3 (37.50%) SQL
4 3 (37.50%) C
4 3 (37.50%) C#
4 3 (37.50%) JUnit
4 3 (37.50%) Client/Server
4 3 (37.50%) JMS
4 3 (37.50%) OOD
5 2 (25.00%) XML
5 2 (25.00%) XSLT
5 2 (25.00%) UNIX
5 2 (25.00%) Linux

JNI
Top Related IT Skills by Category

For the 6 months to 16 April 2014, IT contractor jobs within the UK citing JNI also mentioned the following IT skills grouped by category. The figures indicate the number of jobs and their proportion against the total number of contract IT job ads sampled that cited JNI. Up to 20 skills are shown per category.

Application Platforms
1 2 (25.00%) WebLogic
1 2 (25.00%) WebSphere
2 1 (12.50%) Liferay
2 1 (12.50%) Mule
Business Applications
1 2 (25.00%) Murex MxG2000
Communications & Networking
1 1 (12.50%) NFC
1 1 (12.50%) HTTP
1 1 (12.50%) TCP/IP
Development Applications
1 4 (50.00%) Git (software)
2 3 (37.50%) Hamcrest
2 3 (37.50%) jMock
2 3 (37.50%) Subversion
2 3 (37.50%) JUnit
General
1 2 (25.00%) Front Office
1 2 (25.00%) Finance
Job Titles
1 7 (87.50%) Developer
2 4 (50.00%) Android Developer
3 3 (37.50%) Java Developer
4 1 (12.50%) Software Engineer
Libraries, Frameworks & Software Standards
1 5 (62.50%) Java SE
2 3 (37.50%) Android NDK
2 3 (37.50%) Java EE
2 3 (37.50%) Hibernate
2 3 (37.50%) Spring
2 3 (37.50%) JMS
3 2 (25.00%) XML
3 2 (25.00%) XSLT
3 2 (25.00%) Spring Integration
3 2 (25.00%) Murex Flex
4 1 (12.50%) Apache Flex
4 1 (12.50%) Web Services
Miscellaneous
1 3 (37.50%) Blackberry
1 3 (37.50%) Client/Server
2 2 (25.00%) Foreign Exchange (FX)
2 2 (25.00%) Mathematics
3 1 (12.50%) Open Source
3 1 (12.50%) Device Driver
3 1 (12.50%) Cryptography
Operating Systems
1 4 (50.00%) Android
2 2 (25.00%) UNIX
2 2 (25.00%) Linux
Processes & Methodologies
1 4 (50.00%) Android Development
2 3 (37.50%) Unit Testing
2 3 (37.50%) Kanban
2 3 (37.50%) Refactoring
2 3 (37.50%) Agile Software Development
2 3 (37.50%) OO
2 3 (37.50%) OOD
3 2 (25.00%) Risk Management
4 1 (12.50%) User Stories
4 1 (12.50%) Continuous Integration
4 1 (12.50%) Software Engineering
4 1 (12.50%) DRM
Programming Languages
1 8 (100.00%) Java
2 4 (50.00%) C++
3 3 (37.50%) SQL
3 3 (37.50%) C
3 3 (37.50%) C#
4 2 (25.00%) Python
5 1 (12.50%) Objective-C
Vendors
1 2 (25.00%) Oracle
1 2 (25.00%) Sybase
1 2 (25.00%) Adobe
1 2 (25.00%) Murex
1 2 (25.00%) Reuters
1 2 (25.00%) Bloomberg