The table below looks at the statistics for JNI skills in IT contracts advertised for the England region. Included is a guide to the average contractor rates offered in IT contracts that have cited JNI over the 3 months to 28 May 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
28 May 2015
Same period 2014 Same period 2013
Java Native Interface (JNI)
Rank 577 565 521
Rank change year-on-year
-12 -44
Contract jobs citing JNI 6 1 8
As % of all contract IT jobs located in England 0.012% 0.002% 0.019%
As % of the Libraries, Frameworks & Software Standards category 0.044% 0.007% 0.069%
Number of daily rates quoted 6 1 5
Average daily rate
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£650 £380 £350
Average daily rate % change year-on-year
+71.05% +8.57%
UK excluding London average daily rate £275 £360 £350
% change year-on-year
-23.61% +2.85%
Number of hourly rates quoted 0 0 2
Average hourly rate - - £37.50
UK excluding London average hourly rate - - £37.50
JNI
UK

The following table is for comparison with the above and provides statistics for the entire Libraries, Frameworks & Software Standards category in contract jobs advertised in the England region.

Libraries, Frameworks & Software Standards Category
England
Contract IT job ads with a match in the
Libraries, Frameworks & Software Standards category
13710 13639 11662
As % of all contract IT jobs located in England 27.40% 27.66% 27.36%
Number of daily rates quoted 9197 9142 7535
Average daily rate £388 £375 £375
Average daily rate % change year-on-year
+3.33% -
90% offered a daily rate of more than £280 £265 £250
10% offered a daily rate of more than £550 £525 £550
UK excluding London average daily rate £350 £350 £325
% change year-on-year
- +7.69%
Number of hourly rates quoted 191 178 338
Average hourly rate £35.00 £35.00 £35.00
90% offered a hourly rate of more than £17.00 £15.79 £17.50
10% offered a hourly rate of more than £49.50 £55.00 £45.00
UK excluding London average hourly rate £37.62 £35.00 £35.00
% change year-on-year
+7.48% -

JNI
Jobs Demand Trend in England

This chart provides a 3-month moving total of IT contractor jobs citing JNI across the England region as a proportion of the total demand within the Libraries, Frameworks & Software Standards category.

JNI Jobs Demand Trend in England

JNI
Daily Rate Trend in England

This chart provides the 3-month moving average for daily rates quoted in IT contract jobs citing JNI across the England region.

JNI Daily Rate Trend in England

JNI
Daily Rate Histogram in England

This chart provides a histogram of daily rates quoted in contract IT jobs citing JNI across the England region over the 3 months to 28 May 2015.

JNI Daily Rate Histogram in England

JNI
Hourly Rate Trend in England

This chart provides the 3-month moving average for hourly rates quoted in IT contractor jobs citing JNI across the England region.

JNI Hourly Rate Trend in England

JNI
Contract Job Locations in England

The table below looks at the demand and provides a guide to the average contractor rates quoted in IT jobs citing JNI within the England region over the 3 months to 28 May 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
London +22 5 £650 +71.05%
South West - 1 £275 -
JNI
UK

JNI
Top 30 Related IT Skills in England

For the 6 months to 28 May 2015, IT contractor jobs across the England region 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 26 (96.30%) Java
2 16 (59.26%) Android
2 16 (59.26%) Git (software)
3 15 (55.56%) Unit Testing
3 15 (55.56%) Jenkins
3 15 (55.56%) Android NDK
4 14 (51.85%) Subversion
5 13 (48.15%) Atlassian Bamboo
5 13 (48.15%) Publishing
5 13 (48.15%) Maven
5 13 (48.15%) Ant
5 13 (48.15%) Android SDK
5 13 (48.15%) Android Development
6 11 (40.74%) Agile Software Development
7 10 (37.04%) C++
7 10 (37.04%) OO
7 10 (37.04%) REST
8 9 (33.33%) Mockito
8 9 (33.33%) Artifactory
8 9 (33.33%) Robotium
8 9 (33.33%) Low Latency
8 9 (33.33%) SDLC
8 9 (33.33%) Appium
8 9 (33.33%) RoboGuice
8 9 (33.33%) Foreign Exchange (FX)
8 9 (33.33%) OOP
8 9 (33.33%) Automated Testing
8 9 (33.33%) Finance
8 9 (33.33%) Equities
8 9 (33.33%) Continuous Integration

JNI
Top Related IT Skills in England by Category

For the 6 months to 28 May 2015, IT contractor jobs across the England region 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.

Business Applications
1 9 (33.33%) ION MarketView
Communications & Networking
1 1 (3.70%) NAS
1 1 (3.70%) VLAN
1 1 (3.70%) Bluetooth
1 1 (3.70%) FTP
1 1 (3.70%) TCP/IP
Database & Business Intelligence
1 1 (3.70%) Big Data
Development Applications
1 16 (59.26%) Git (software)
2 15 (55.56%) Jenkins
3 14 (51.85%) Subversion
4 13 (48.15%) Atlassian Bamboo
4 13 (48.15%) Maven
4 13 (48.15%) Ant
5 9 (33.33%) Mockito
5 9 (33.33%) Artifactory
5 9 (33.33%) Robotium
5 9 (33.33%) Appium
6 1 (3.70%) Appcelerator Titanium
6 1 (3.70%) Mercurial
General
1 13 (48.15%) Publishing
2 9 (33.33%) Finance
3 1 (3.70%) Banking
3 1 (3.70%) Manufacturing
Job Titles
1 22 (81.48%) Developer
2 12 (44.44%) Android Developer
3 9 (33.33%) Java Developer
4 5 (18.52%) Senior Developer
4 5 (18.52%) C++/Java Developer
4 5 (18.52%) C++ Developer
5 4 (14.81%) Senior Java Developer
6 1 (3.70%) Senior Android Developer
6 1 (3.70%) Java Software Engineer
6 1 (3.70%) Software Engineer
Libraries, Frameworks & Software Standards
1 15 (55.56%) Android NDK
2 13 (48.15%) Android SDK
3 10 (37.04%) REST
4 9 (33.33%) RoboGuice
4 9 (33.33%) JSON
5 5 (18.52%) Rendezvous
5 5 (18.52%) Middleware
6 4 (14.81%) iOS SDK
7 1 (3.70%) HTML5
7 1 (3.70%) WebSockets
7 1 (3.70%) PhoneGap
7 1 (3.70%) Backbone.js
7 1 (3.70%) WinRT
7 1 (3.70%) Swing
7 1 (3.70%) HTML
7 1 (3.70%) CSS
7 1 (3.70%) JDBC
7 1 (3.70%) Web Services
Miscellaneous
1 9 (33.33%) Foreign Exchange (FX)
1 9 (33.33%) Equities
2 4 (14.81%) Computer Science
3 2 (7.41%) Mobile App
4 1 (3.70%) Embedded Systems
4 1 (3.70%) Enterprise Storage
4 1 (3.70%) Mainframe
Operating Systems
1 16 (59.26%) Android
2 7 (25.93%) Windows
3 5 (18.52%) Apple iOS
4 1 (3.70%) Windows Phone
4 1 (3.70%) Tru64
4 1 (3.70%) zOS
4 1 (3.70%) MVS
4 1 (3.70%) OpenVMS
4 1 (3.70%) AIX
4 1 (3.70%) HPUX
4 1 (3.70%) Solaris
4 1 (3.70%) Linux
Processes & Methodologies
1 15 (55.56%) Unit Testing
2 13 (48.15%) Android Development
3 11 (40.74%) Agile Software Development
4 10 (37.04%) OO
5 9 (33.33%) Low Latency
5 9 (33.33%) SDLC
5 9 (33.33%) OOP
5 9 (33.33%) Automated Testing
5 9 (33.33%) Continuous Integration
5 9 (33.33%) Multithreading
5 9 (33.33%) Electronic Trading
5 9 (33.33%) Dependency Injection
6 8 (29.63%) User Stories
7 5 (18.52%) Market Making
7 5 (18.52%) Business Transformation
8 4 (14.81%) iOS Development
8 4 (14.81%) TDD
9 1 (3.70%) Mobile Development
9 1 (3.70%) Data Analysis
9 1 (3.70%) Software Engineering
Programming Languages
1 26 (96.30%) Java
2 10 (37.04%) C++
3 6 (22.22%) C#
4 5 (18.52%) C
5 1 (3.70%) Objective-C
5 1 (3.70%) JavaScript
5 1 (3.70%) SQL
Qualifications
1 4 (14.81%) Degree
Vendors
1 9 (33.33%) ION Trading
2 5 (18.52%) TIBCO
3 1 (3.70%) Xamarin
3 1 (3.70%) Brocade
3 1 (3.70%) VMware
3 1 (3.70%) Cisco
3 1 (3.70%) IBM
3 1 (3.70%) EMC
3 1 (3.70%) Hitachi
3 1 (3.70%) Novell
3 1 (3.70%) Veritas
3 1 (3.70%) Oracle