The table below looks at the statistics for JNI skills in IT contracts advertised for the England region. Included is a guide to the contractor rates offered in IT contracts that have cited JNI over the 3 months to 21 January 2017 with a comparison to the same period over 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.

3 months to
21 Jan 2017
Same period 2016 Same period 2015
Java Native Interface (JNI)
UK / England
Rank 560 587 559
Rank change year-on-year
+27 -28
Contract jobs citing JNI 10 5 22
As % of all contract IT jobs located in England 0.025% 0.011% 0.047%
As % of the Libraries, Frameworks & Software Standards category 0.079% 0.037% 0.17%
Number of daily rates quoted 9 5 15
Median daily rate £525 £380 £338
Median daily rate % change year-on-year
+38.15% +12.59%
90% offered a daily rate of more than £445 £368 £310
10% offered a daily rate of more than £600 £380 £377
UK excluding London median daily rate - £380 £339
% change year-on-year
- +12.17%
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median 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 in the England region.

Libraries, Frameworks & Software Standards Category
England
Contract IT job ads with a match in the
Libraries, Frameworks & Software Standards category
12674 13611 12786
As % of all contract IT jobs located in England 31.07% 29.24% 27.57%
Number of daily rates quoted 8758 9470 8757
Median daily rate £425 £413 £400
Median daily rate % change year-on-year
+3.03% +3.12%
90% offered a daily rate of more than £313 £300 £275
10% offered a daily rate of more than £575 £550 £550
UK excluding London median daily rate £375 £370 £350
% change year-on-year
+1.35% +5.71%
Number of hourly rates quoted 146 243 167
Median hourly rate £37.50 £40.00 £34.00
Median hourly rate % change year-on-year
-6.25% +17.64%
90% offered a hourly rate of more than £20.00 £21.50 £21.00
10% offered a hourly rate of more than £50.00 £56.00 £50.00
UK excluding London median hourly rate £37.50 £37.50 £33.50
% change year-on-year
- +11.94%

JNI
Jobs Demand Trend in England

The demand trend of contract jobs across the England region citing JNI as a proportion of all IT contracts with a match in 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 21 January 2017.

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 median contractor rates quoted in IT jobs citing JNI within the England region over the 3 months to 21 January 2017. 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 Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
London - 10 £525 - 1
JNI
UK

JNI
Top 30 Related IT Skills in England

For the 6 months to 21 January 2017, IT contractor jobs citing JNI also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the England region with a requirement for JNI.

1 20 (86.96%) C++
2 16 (69.57%) C
3 14 (60.87%) Java
4 12 (52.17%) Android
4 12 (52.17%) Android Studio
5 10 (43.48%) Apple iOS
5 10 (43.48%) iOS SDK
5 10 (43.48%) Gradle
5 10 (43.48%) Android SDK
5 10 (43.48%) Android Development
5 10 (43.48%) OpenGL
6 9 (39.13%) Python
6 9 (39.13%) Multithreading
6 9 (39.13%) Algorithms
7 8 (34.78%) Mobile Development
7 8 (34.78%) CocoaPods
7 8 (34.78%) Cross-Platform Development
7 8 (34.78%) Augmented Reality
7 8 (34.78%) iOS Development
7 8 (34.78%) Finance
7 8 (34.78%) Xcode
8 7 (30.43%) Equities
8 7 (30.43%) ION Trading
8 7 (30.43%) Foreign Exchange (FX)
8 7 (30.43%) Low Latency
8 7 (30.43%) ION MarketView
8 7 (30.43%) Electronic Trading
8 7 (30.43%) Computer Science
8 7 (30.43%) Degree
8 7 (30.43%) Multithreaded Programming

JNI
Top Related IT Skills in England by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 2 (8.70%) Apache
1 2 (8.70%) Oracle Coherence
Business Applications
1 7 (30.43%) ION MarketView
Cloud Services
1 2 (8.70%) Amazon AWS
1 2 (8.70%) Google Cloud Platform
Communications & Networking
1 2 (8.70%) MQTT
2 1 (4.35%) Internet
Database & Business Intelligence
1 1 (4.35%) NoSQL
Development Applications
1 12 (52.17%) Android Studio
2 10 (43.48%) Gradle
3 8 (34.78%) CocoaPods
3 8 (34.78%) Xcode
4 1 (4.35%) Maven
General
1 8 (34.78%) Finance
2 3 (13.04%) Banking
2 3 (13.04%) Investment Banking
3 2 (8.70%) Front Office
4 1 (4.35%) Games
Job Titles
1 22 (95.65%) Developer
2 10 (43.48%) Java Developer
3 8 (34.78%) Mobile Developer
4 6 (26.09%) Electronic Trading Developer
4 6 (26.09%) Electronic Trading Java Developer
5 4 (17.39%) Android Developer
6 2 (8.70%) C++ Developer
6 2 (8.70%) Cloud Developer
6 2 (8.70%) iOS Android Developer
6 2 (8.70%) iOS Developer
7 1 (4.35%) Applications Developer
7 1 (4.35%) C Developer
7 1 (4.35%) C/C++ Developer
7 1 (4.35%) C++ Quantitative Developer
7 1 (4.35%) C++/Java Developer
7 1 (4.35%) Electronic Trading C++ Developer
7 1 (4.35%) Java Quantitative Developer
7 1 (4.35%) Python Developer
7 1 (4.35%) Quantitative Developer
Libraries, Frameworks & Software Standards
1 10 (43.48%) Android SDK
1 10 (43.48%) iOS SDK
1 10 (43.48%) OpenGL
2 2 (8.70%) Guava
2 2 (8.70%) J2SE
2 2 (8.70%) Middleware
2 2 (8.70%) Rendezvous
2 2 (8.70%) Spring
2 2 (8.70%) XML
3 1 (4.35%) Android NDK
3 1 (4.35%) JSON
3 1 (4.35%) Unity (Game Engine)
Miscellaneous
1 9 (39.13%) Algorithms
2 8 (34.78%) Augmented Reality
3 7 (30.43%) Computer Science
3 7 (30.43%) Equities
3 7 (30.43%) Foreign Exchange (FX)
4 4 (17.39%) Fixed Income
5 2 (8.70%) Fintech
6 1 (4.35%) CUDA
6 1 (4.35%) Internet of Things
Operating Systems
1 12 (52.17%) Android
2 10 (43.48%) Apple iOS
3 4 (17.39%) Windows
Processes & Methodologies
1 10 (43.48%) Android Development
2 9 (39.13%) Multithreading
3 8 (34.78%) Cross-Platform Development
3 8 (34.78%) iOS Development
3 8 (34.78%) Mobile Development
4 7 (30.43%) Electronic Trading
4 7 (30.43%) Low Latency
4 7 (30.43%) Multithreaded Programming
4 7 (30.43%) SDLC
5 2 (8.70%) Agile Software Development
5 2 (8.70%) Data Management
5 2 (8.70%) OO
6 1 (4.35%) Dependency Injection
6 1 (4.35%) Parallel Programming
6 1 (4.35%) Refactoring
Programming Languages
1 20 (86.96%) C++
2 16 (69.57%) C
3 14 (60.87%) Java
4 9 (39.13%) Python
5 4 (17.39%) C#
6 1 (4.35%) Objective-C
Qualifications
1 7 (30.43%) Degree
Quality Assurance & Compliance
1 1 (4.35%) QA
Vendors
1 7 (30.43%) ION Trading
2 6 (26.09%) TIBCO
3 2 (8.70%) DataSynapse
3 2 (8.70%) Google
3 2 (8.70%) Oracle