The table below looks at the statistics 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 29 January 2015 with a comparison to the same period in 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.

Location
3 months to
29 Jan 2015
Same period 2014 Same period 2013
Java Native Interface (JNI)
Rank 553 555 520
Rank change year-on-year
+2 -35
Contract jobs citing JNI 18 4 11
As % of all contract IT jobs located in the UK 0.036% 0.008% 0.024%
As % of the Libraries, Frameworks & Software Standards category 0.13% 0.030% 0.086%
Number of daily rates quoted 11 0 11
Average daily rate
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of your Daily Rate
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£340 - £350
UK excluding London average daily rate £339 - £350
Number of hourly rates quoted 0 0 0
Average hourly rate - - -
UK excluding London average 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
13557 13167 12846
As % of all contract IT jobs located in the UK 27.06% 26.96% 28.28%
Number of daily rates quoted 9084 8265 8122
Average daily rate £388 £375 £363
Average daily rate % change year-on-year
+3.33% +3.44%
90% offered a daily rate of more than £275 £250 £250
10% offered a daily rate of more than £550 £525 £525
UK excluding London average daily rate £350 £325 £325
% change year-on-year
+7.69% -
Number of hourly rates quoted 190 270 329
Average hourly rate £33.50 £32.50 £35.00
Average hourly rate % change year-on-year
+3.07% -7.14%
90% offered a hourly rate of more than £20.93 £13.50 £19.30
10% offered a hourly rate of more than £50.00 £45.30 £42.50
UK excluding London average hourly rate £33.50 £32.50 £35.00
% change year-on-year
+3.07% -7.14%

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 29 January 2015.

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 12 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 29 January 2015. 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
(Use links below to see detailed
statistics and historical trends)
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
Live
Job
Vacancies
England -4 18 £340 -
East of England - 2 £319 -
London +12 1 £450 -
Norwich - 1 £338 -
Bristol - 1 £350 -
Norfolk - 1 £338 -
South West - 1 £350 -
City of London - - - -
North West - - - -
Scotland - - - - 1
Edinburgh - - - - 1
Cheshire - - - -

JNI
Top 30 Related IT Skills

For the 6 months to 29 January 2015, 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 48 (96.00%) Java
2 31 (62.00%) Android
3 26 (52.00%) Android Development
4 21 (42.00%) C++
5 20 (40.00%) Android NDK
6 17 (34.00%) Linux
6 17 (34.00%) Subversion
7 16 (32.00%) Git (software)
8 14 (28.00%) Unit Testing
8 14 (28.00%) Maven
8 14 (28.00%) OO
8 14 (28.00%) Jenkins
9 13 (26.00%) Android SDK
9 13 (26.00%) C
9 13 (26.00%) Ant
9 13 (26.00%) Publishing
9 13 (26.00%) Agile Software Development
9 13 (26.00%) Atlassian Bamboo
10 12 (24.00%) Finance
11 11 (22.00%) UNIX
11 11 (22.00%) C#
12 10 (20.00%) XML
12 10 (20.00%) Java SE
13 9 (18.00%) JSON
13 9 (18.00%) Continuous Integration
13 9 (18.00%) Dependency Injection
13 9 (18.00%) Automated Testing
13 9 (18.00%) OOP
13 9 (18.00%) Artifactory
13 9 (18.00%) Mockito

JNI
Top Related IT Skills by Category

For the 6 months to 29 January 2015, 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 6 (12.00%) WebSphere
1 6 (12.00%) WebLogic
Business Applications
1 7 (14.00%) Murex MxG2000
2 5 (10.00%) ION MarketView
Communications & Networking
1 6 (12.00%) NFC
2 5 (10.00%) DVB
3 3 (6.00%) TCP/IP
4 1 (2.00%) Bluetooth
4 1 (2.00%) FTP
4 1 (2.00%) HTTP
4 1 (2.00%) VLAN
4 1 (2.00%) NAS
4 1 (2.00%) DLNA
Database & Business Intelligence
1 1 (2.00%) Big Data
Development Applications
1 17 (34.00%) Subversion
2 16 (32.00%) Git (software)
3 14 (28.00%) Maven
3 14 (28.00%) Jenkins
4 13 (26.00%) Ant
4 13 (26.00%) Atlassian Bamboo
5 9 (18.00%) Artifactory
5 9 (18.00%) Mockito
5 9 (18.00%) Robotium
5 9 (18.00%) Appium
6 4 (8.00%) NetBeans
7 2 (4.00%) Eclipse
8 1 (2.00%) Mercurial
8 1 (2.00%) Appcelerator Titanium
General
1 13 (26.00%) Publishing
2 12 (24.00%) Finance
3 7 (14.00%) Front Office
4 6 (12.00%) Banking
5 5 (10.00%) Investment Banking
6 2 (4.00%) Legal
7 1 (2.00%) Electronics
7 1 (2.00%) Multimedia
Job Titles
1 40 (80.00%) Developer
2 21 (42.00%) Android Developer
3 12 (24.00%) Java Developer
4 5 (10.00%) Software Engineer
4 5 (10.00%) Front Office Developer
5 3 (6.00%) Java Software Engineer
5 3 (6.00%) Design Engineer
5 3 (6.00%) Software Design Engineer
6 2 (4.00%) Senior Developer
6 2 (4.00%) Software Developer
7 1 (2.00%) Programmer
7 1 (2.00%) Embedded C Software Engineer
7 1 (2.00%) Java Programmer
7 1 (2.00%) Senior Java Developer
7 1 (2.00%) Embedded Software Engineer
7 1 (2.00%) C++ Software Engineer
7 1 (2.00%) Embedded C Engineer
7 1 (2.00%) C Developer
7 1 (2.00%) C Software Engineer
7 1 (2.00%) Software Programmer
Libraries, Frameworks & Software Standards
1 20 (40.00%) Android NDK
2 13 (26.00%) Android SDK
3 10 (20.00%) XML
3 10 (20.00%) Java SE
4 9 (18.00%) JSON
4 9 (18.00%) REST
4 9 (18.00%) RoboGuice
5 7 (14.00%) HTML
5 7 (14.00%) JMS
5 7 (14.00%) Spring
5 7 (14.00%) Hibernate
5 7 (14.00%) Murex Flex
5 7 (14.00%) FIX Protocol
5 7 (14.00%) Spring Integration
6 6 (12.00%) Java EE
6 6 (12.00%) XSLT
7 5 (10.00%) Web Services
8 4 (8.00%) iOS SDK
8 4 (8.00%) Swing
9 3 (6.00%) Middleware
Miscellaneous
1 7 (14.00%) Foreign Exchange (FX)
2 5 (10.00%) DTV
2 5 (10.00%) Mathematics
2 5 (10.00%) Analytical Skills
3 4 (8.00%) Embedded Systems
3 4 (8.00%) Algorithms
3 4 (8.00%) Computer Science
3 4 (8.00%) IPTV
4 3 (6.00%) Mobile App
5 2 (4.00%) Cryptography
5 2 (4.00%) Fixed Income
6 1 (2.00%) MPEG
6 1 (2.00%) Mainframe
6 1 (2.00%) Blackberry
6 1 (2.00%) iDTV
6 1 (2.00%) VHDL
6 1 (2.00%) Verilog
6 1 (2.00%) STB
6 1 (2.00%) Video Editing
6 1 (2.00%) Video on Demand
Operating Systems
1 31 (62.00%) Android
2 17 (34.00%) Linux
3 11 (22.00%) UNIX
4 8 (16.00%) Apple iOS
5 4 (8.00%) Windows
6 1 (2.00%) AIX
6 1 (2.00%) HPUX
6 1 (2.00%) Solaris
6 1 (2.00%) OpenVMS
6 1 (2.00%) Tru64
6 1 (2.00%) zOS
6 1 (2.00%) MVS
6 1 (2.00%) Windows Phone
Processes & Methodologies
1 26 (52.00%) Android Development
2 14 (28.00%) Unit Testing
2 14 (28.00%) OO
3 13 (26.00%) Agile Software Development
4 9 (18.00%) Continuous Integration
4 9 (18.00%) Dependency Injection
4 9 (18.00%) Automated Testing
4 9 (18.00%) OOP
5 8 (16.00%) User Stories
6 7 (14.00%) Risk Management
6 7 (14.00%) Software Engineering
7 6 (12.00%) Multithreading
8 5 (10.00%) Electronic Trading
8 5 (10.00%) Low Latency
8 5 (10.00%) iOS Development
9 4 (8.00%) TDD
9 4 (8.00%) OOD
10 3 (6.00%) Strategic Management
11 2 (4.00%) Mobile Application Development
11 2 (4.00%) Mobile Device Management
Programming Languages
1 48 (96.00%) Java
2 21 (42.00%) C++
3 13 (26.00%) C
4 11 (22.00%) C#
5 8 (16.00%) SQL
6 3 (6.00%) JavaScript
7 2 (4.00%) Objective-C
8 1 (2.00%) Perl
8 1 (2.00%) Python
8 1 (2.00%) Embedded C
8 1 (2.00%) Embedded C++
8 1 (2.00%) Bash Shell
Qualifications
1 4 (8.00%) Degree
2 1 (2.00%) Security Cleared
Vendors
1 8 (16.00%) Oracle
2 7 (14.00%) Sybase
2 7 (14.00%) Adobe
2 7 (14.00%) Murex
2 7 (14.00%) Reuters
2 7 (14.00%) Bloomberg
3 5 (10.00%) ION Trading
4 4 (8.00%) Microsoft
5 2 (4.00%) TIBCO
5 2 (4.00%) Perforce
6 1 (2.00%) Symbian
6 1 (2.00%) Cisco
6 1 (2.00%) IBM
6 1 (2.00%) EMC
6 1 (2.00%) Hitachi
6 1 (2.00%) Novell
6 1 (2.00%) Veritas
6 1 (2.00%) VMware
6 1 (2.00%) Brocade
6 1 (2.00%) Xamarin