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 24 April 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
24 Apr 2015
Same period 2014 Same period 2013
Java Native Interface (JNI)
Rank 574 580 515
Rank change year-on-year
+6 -65
Contract jobs citing JNI 9 2 11
As % of all contract IT jobs located in England 0.018% 0.004% 0.025%
As % of the Libraries, Frameworks & Software Standards category 0.066% 0.015% 0.093%
Number of daily rates quoted 9 2 10
Average daily rate
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£650 £428 £350
Average daily rate % change year-on-year
+52.04% +22.14%
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 - - -
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
13693 13713 11856
As % of all contract IT jobs located in England 27.10% 27.27% 27.11%
Number of daily rates quoted 8983 9024 7581
Average daily rate £388 £375 £375
Average daily rate % change year-on-year
+3.33% -
90% offered a daily rate of more than £275 £265 £260
10% offered a daily rate of more than £550 £525 £550
UK excluding London average daily rate £350 £338 £325
% change year-on-year
+3.70% +3.84%
Number of hourly rates quoted 179 205 335
Average hourly rate £35.00 £35.00 £35.00
90% offered a hourly rate of more than £19.00 £17.80 £17.00
10% offered a hourly rate of more than £46.82 £52.50 £44.50
UK excluding London average hourly rate £36.25 £35.00 £35.00
% change year-on-year
+3.57% -

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
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 24 April 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 +12 9 £650 +52.04%
JNI
UK

JNI
Top 30 Related IT Skills in England

For the 6 months to 24 April 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 30 (96.77%) Java
2 20 (64.52%) Android
3 18 (58.06%) Android NDK
4 16 (51.61%) Android Development
5 15 (48.39%) Git (software)
6 14 (45.16%) Unit Testing
6 14 (45.16%) Jenkins
7 13 (41.94%) Android SDK
7 13 (41.94%) Atlassian Bamboo
7 13 (41.94%) Publishing
7 13 (41.94%) Subversion
7 13 (41.94%) Maven
7 13 (41.94%) Ant
8 12 (38.71%) C++
9 11 (35.48%) Finance
9 11 (35.48%) Agile Software Development
10 10 (32.26%) OO
10 10 (32.26%) Multithreading
11 9 (29.03%) Electronic Trading
11 9 (29.03%) Continuous Integration
11 9 (29.03%) ION MarketView
11 9 (29.03%) Dependency Injection
11 9 (29.03%) Mockito
11 9 (29.03%) REST
11 9 (29.03%) Robotium
11 9 (29.03%) Artifactory
11 9 (29.03%) Low Latency
11 9 (29.03%) Appium
11 9 (29.03%) RoboGuice
11 9 (29.03%) Foreign Exchange (FX)

JNI
Top Related IT Skills in England by Category

For the 6 months to 24 April 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 (29.03%) ION MarketView
Communications & Networking
1 4 (12.90%) NFC
2 2 (6.45%) TCP/IP
3 1 (3.23%) NAS
3 1 (3.23%) DLNA
3 1 (3.23%) Bluetooth
3 1 (3.23%) FTP
3 1 (3.23%) VLAN
3 1 (3.23%) DVB
Database & Business Intelligence
1 1 (3.23%) Big Data
Development Applications
1 15 (48.39%) Git (software)
2 14 (45.16%) Jenkins
3 13 (41.94%) Atlassian Bamboo
3 13 (41.94%) Subversion
3 13 (41.94%) Maven
3 13 (41.94%) Ant
4 9 (29.03%) Mockito
4 9 (29.03%) Robotium
4 9 (29.03%) Artifactory
4 9 (29.03%) Appium
5 1 (3.23%) Mercurial
5 1 (3.23%) Appcelerator Titanium
General
1 13 (41.94%) Publishing
2 11 (35.48%) Finance
3 2 (6.45%) Legal
4 1 (3.23%) Banking
4 1 (3.23%) Electronics
Job Titles
1 25 (80.65%) Developer
2 12 (38.71%) Android Developer
3 9 (29.03%) Java Developer
4 5 (16.13%) Senior Developer
4 5 (16.13%) C++ Developer
4 5 (16.13%) C++/Java Developer
5 4 (12.90%) Senior Java Developer
6 2 (6.45%) Software Engineer
7 1 (3.23%) Senior Android Developer
7 1 (3.23%) Embedded C Engineer
7 1 (3.23%) C Software Engineer
7 1 (3.23%) Embedded Software Engineer
7 1 (3.23%) C++ Software Engineer
7 1 (3.23%) Embedded C Software Engineer
Libraries, Frameworks & Software Standards
1 18 (58.06%) Android NDK
2 13 (41.94%) Android SDK
3 9 (29.03%) REST
3 9 (29.03%) RoboGuice
3 9 (29.03%) JSON
4 6 (19.35%) Middleware
5 5 (16.13%) Rendezvous
6 4 (12.90%) iOS SDK
7 2 (6.45%) HTML
7 2 (6.45%) CSS
7 2 (6.45%) HTML5
8 1 (3.23%) PhoneGap
8 1 (3.23%) Backbone.js
8 1 (3.23%) WinRT
Miscellaneous
1 9 (29.03%) Foreign Exchange (FX)
1 9 (29.03%) Equities
2 5 (16.13%) Computer Science
3 1 (3.23%) Video on Demand
3 1 (3.23%) Enterprise Storage
3 1 (3.23%) Mobile App
3 1 (3.23%) iDTV
3 1 (3.23%) MPEG
3 1 (3.23%) STB
3 1 (3.23%) Cryptography
3 1 (3.23%) DTV
3 1 (3.23%) Mainframe
Operating Systems
1 20 (64.52%) Android
2 7 (22.58%) Windows
3 5 (16.13%) Apple iOS
4 3 (9.68%) Linux
5 1 (3.23%) Windows Phone
5 1 (3.23%) AIX
5 1 (3.23%) HPUX
5 1 (3.23%) Solaris
5 1 (3.23%) zOS
5 1 (3.23%) MVS
5 1 (3.23%) OpenVMS
5 1 (3.23%) Tru64
Processes & Methodologies
1 16 (51.61%) Android Development
2 14 (45.16%) Unit Testing
3 11 (35.48%) Agile Software Development
4 10 (32.26%) OO
4 10 (32.26%) Multithreading
5 9 (29.03%) Electronic Trading
5 9 (29.03%) Continuous Integration
5 9 (29.03%) Dependency Injection
5 9 (29.03%) Low Latency
5 9 (29.03%) OOP
5 9 (29.03%) Automated Testing
6 8 (25.81%) User Stories
7 5 (16.13%) Business Transformation
7 5 (16.13%) Market Making
8 4 (12.90%) iOS Development
8 4 (12.90%) TDD
9 2 (6.45%) Software Engineering
10 1 (3.23%) Software Architecture
10 1 (3.23%) Kanban
10 1 (3.23%) Mobile Development
Programming Languages
1 30 (96.77%) Java
2 12 (38.71%) C++
3 6 (19.35%) C
3 6 (19.35%) C#
4 2 (6.45%) JavaScript
5 1 (3.23%) Bash Shell
5 1 (3.23%) Perl
5 1 (3.23%) Embedded C
5 1 (3.23%) Embedded C++
5 1 (3.23%) Python
5 1 (3.23%) Objective-C
Qualifications
1 5 (16.13%) Degree
Vendors
1 9 (29.03%) ION Trading
2 5 (16.13%) TIBCO
3 1 (3.23%) Xamarin
3 1 (3.23%) Oracle
3 1 (3.23%) Cisco
3 1 (3.23%) IBM
3 1 (3.23%) EMC
3 1 (3.23%) Hitachi
3 1 (3.23%) Novell
3 1 (3.23%) Veritas
3 1 (3.23%) Brocade
3 1 (3.23%) VMware