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 27 February 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
27 Feb 2015
Same period 2014 Same period 2013
Java Native Interface (JNI)
Rank 555 562 522
Rank change year-on-year
+7 -40
Contract jobs citing JNI 21 4 15
As % of all contract IT jobs located in the UK 0.040% 0.008% 0.033%
As % of the Libraries, Frameworks & Software Standards category 0.15% 0.029% 0.12%
Number of daily rates quoted 14 1 14
Average daily rate
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of your Daily Rate
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£388 £475 £350
Average daily rate % change year-on-year
-18.42% +35.71%
90% offered a daily rate of more than £325 £475 £338
10% offered a daily rate of more than £650 £475 £578
UK excluding London average daily rate £333 - £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
14022 13562 12160
As % of all contract IT jobs located in the UK 26.72% 26.98% 27.09%
Number of daily rates quoted 9222 8450 7632
Average daily rate £388 £375 £360
Average daily rate % change year-on-year
+3.33% +4.16%
90% offered a daily rate of more than £275 £260 £255
10% offered a daily rate of more than £540 £525 £541
UK excluding London average daily rate £350 £325 £325
% change year-on-year
+7.69% -
Number of hourly rates quoted 191 260 303
Average hourly rate £35.00 £34.00 £35.00
Average hourly rate % change year-on-year
+2.94% -2.85%
90% offered a hourly rate of more than £20.00 £16.87 £17.00
10% offered a hourly rate of more than £50.00 £50.50 £42.50
UK excluding London average hourly rate £35.00 £34.00 £35.00
% change year-on-year
+2.94% -2.85%

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 27 February 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 14 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 27 February 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 -1 21 £388 -18.42%
London -13 6 £650 +36.84%
East of England - 1 £300 -
Scotland - - - - 1
Bridgend - - - -
Bristol - - - -
Edinburgh - - - - 1
Norwich - - - -
Cheshire - - - -
Norfolk - - - -
North West - - - -
South Wales - - - -
South West - - - -
Wales - - - -

JNI
Top 30 Related IT Skills

For the 6 months to 27 February 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 42 (95.45%) Java
2 27 (61.36%) Android
3 22 (50.00%) Android Development
4 20 (45.45%) Android NDK
5 19 (43.18%) C++
6 16 (36.36%) Git (software)
7 15 (34.09%) Finance
8 14 (31.82%) Unit Testing
8 14 (31.82%) Subversion
8 14 (31.82%) Maven
8 14 (31.82%) Jenkins
9 13 (29.55%) Android SDK
9 13 (29.55%) Publishing
9 13 (29.55%) Atlassian Bamboo
9 13 (29.55%) Ant
10 12 (27.27%) C
11 11 (25.00%) OO
11 11 (25.00%) Multithreading
11 11 (25.00%) Agile Software Development
12 10 (22.73%) ION Trading
12 10 (22.73%) Electronic Trading
12 10 (22.73%) ION MarketView
12 10 (22.73%) C#
12 10 (22.73%) Low Latency
13 9 (20.45%) Appium
13 9 (20.45%) RoboGuice
13 9 (20.45%) Artifactory
13 9 (20.45%) Robotium
13 9 (20.45%) REST
13 9 (20.45%) OOP

JNI
Top Related IT Skills by Category

For the 6 months to 27 February 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 2 (4.55%) WebLogic
1 2 (4.55%) WebSphere
Business Applications
1 10 (22.73%) ION MarketView
2 3 (6.82%) Murex MxG2000
Communications & Networking
1 6 (13.64%) NFC
2 3 (6.82%) TCP/IP
2 3 (6.82%) DVB
3 1 (2.27%) VLAN
3 1 (2.27%) Bluetooth
3 1 (2.27%) FTP
3 1 (2.27%) HTTP
3 1 (2.27%) NAS
3 1 (2.27%) DLNA
Database & Business Intelligence
1 1 (2.27%) Big Data
Development Applications
1 16 (36.36%) Git (software)
2 14 (31.82%) Subversion
2 14 (31.82%) Maven
2 14 (31.82%) Jenkins
3 13 (29.55%) Atlassian Bamboo
3 13 (29.55%) Ant
4 9 (20.45%) Mockito
4 9 (20.45%) Appium
4 9 (20.45%) Robotium
4 9 (20.45%) Artifactory
5 1 (2.27%) Appcelerator Titanium
5 1 (2.27%) Mercurial
5 1 (2.27%) NetBeans
General
1 15 (34.09%) Finance
2 13 (29.55%) Publishing
3 6 (13.64%) Banking
4 5 (11.36%) Investment Banking
5 3 (6.82%) Front Office
6 2 (4.55%) Legal
7 1 (2.27%) Electronics
7 1 (2.27%) Multimedia
Job Titles
1 37 (84.09%) Developer
2 17 (38.64%) Android Developer
3 13 (29.55%) Java Developer
4 4 (9.09%) Senior Developer
5 3 (6.82%) C++/Java Developer
5 3 (6.82%) Senior Java Developer
5 3 (6.82%) C++ Developer
6 2 (4.55%) Software Engineer
7 1 (2.27%) Software Developer
7 1 (2.27%) Front Office Developer
7 1 (2.27%) Embedded Software Engineer
7 1 (2.27%) C++ Software Engineer
7 1 (2.27%) Embedded C Software Engineer
7 1 (2.27%) Java Programmer
7 1 (2.27%) Embedded C Engineer
7 1 (2.27%) C Developer
7 1 (2.27%) C Software Engineer
7 1 (2.27%) Software Programmer
7 1 (2.27%) Mobile Applications Developer
7 1 (2.27%) Mobile Developer
Libraries, Frameworks & Software Standards
1 20 (45.45%) Android NDK
2 13 (29.55%) Android SDK
3 9 (20.45%) RoboGuice
3 9 (20.45%) REST
3 9 (20.45%) JSON
4 6 (13.64%) Middleware
5 5 (11.36%) HTML
5 5 (11.36%) Rendezvous
6 4 (9.09%) iOS SDK
6 4 (9.09%) XML
7 3 (6.82%) Hibernate
7 3 (6.82%) Spring
7 3 (6.82%) Java SE
7 3 (6.82%) Web Services
7 3 (6.82%) JMS
7 3 (6.82%) FIX Protocol
7 3 (6.82%) Murex Flex
7 3 (6.82%) Spring Integration
8 2 (4.55%) HTML5
8 2 (4.55%) Java EE
Miscellaneous
1 8 (18.18%) Foreign Exchange (FX)
2 6 (13.64%) Computer Science
3 5 (11.36%) Equities
4 3 (6.82%) DTV
4 3 (6.82%) Mobile App
4 3 (6.82%) Mathematics
5 2 (4.55%) Fixed Income
5 2 (4.55%) Cryptography
5 2 (4.55%) IPTV
6 1 (2.27%) Video Editing
6 1 (2.27%) STB
6 1 (2.27%) iPhone
6 1 (2.27%) Video on Demand
6 1 (2.27%) Enterprise Storage
6 1 (2.27%) Embedded Systems
6 1 (2.27%) VHDL
6 1 (2.27%) Verilog
6 1 (2.27%) Mainframe
6 1 (2.27%) Blackberry
6 1 (2.27%) MPEG
Operating Systems
1 27 (61.36%) Android
2 8 (18.18%) Linux
3 7 (15.91%) Windows
4 6 (13.64%) Apple iOS
5 4 (9.09%) UNIX
6 1 (2.27%) Windows Phone
6 1 (2.27%) AIX
6 1 (2.27%) HPUX
6 1 (2.27%) Solaris
6 1 (2.27%) OpenVMS
6 1 (2.27%) zOS
6 1 (2.27%) MVS
6 1 (2.27%) Tru64
Processes & Methodologies
1 22 (50.00%) Android Development
2 14 (31.82%) Unit Testing
3 11 (25.00%) OO
3 11 (25.00%) Agile Software Development
3 11 (25.00%) Multithreading
4 10 (22.73%) Electronic Trading
4 10 (22.73%) Low Latency
5 9 (20.45%) Continuous Integration
5 9 (20.45%) Dependency Injection
5 9 (20.45%) Automated Testing
5 9 (20.45%) OOP
6 8 (18.18%) User Stories
7 5 (11.36%) Business Transformation
7 5 (11.36%) Market Making
7 5 (11.36%) iOS Development
8 4 (9.09%) TDD
8 4 (9.09%) Software Engineering
9 3 (6.82%) Risk Management
10 2 (4.55%) Scrum
10 2 (4.55%) DRM
Programming Languages
1 42 (95.45%) Java
2 19 (43.18%) C++
3 12 (27.27%) C
4 10 (22.73%) C#
5 4 (9.09%) SQL
6 3 (6.82%) JavaScript
7 2 (4.55%) Objective-C
8 1 (2.27%) Bash Shell
8 1 (2.27%) Perl
8 1 (2.27%) Python
8 1 (2.27%) Embedded C
8 1 (2.27%) Embedded C++
Qualifications
1 6 (13.64%) Degree
Vendors
1 10 (22.73%) ION Trading
2 5 (11.36%) TIBCO
3 4 (9.09%) Oracle
4 3 (6.82%) Sybase
4 3 (6.82%) Adobe
4 3 (6.82%) Murex
4 3 (6.82%) Reuters
4 3 (6.82%) Bloomberg
5 1 (2.27%) VMware
5 1 (2.27%) Brocade
5 1 (2.27%) Xamarin
5 1 (2.27%) EMC
5 1 (2.27%) Hitachi
5 1 (2.27%) Novell
5 1 (2.27%) Veritas
5 1 (2.27%) Symbian
5 1 (2.27%) Cisco
5 1 (2.27%) IBM
5 1 (2.27%) Microsoft