Period
to 24 September 2018

The following table provides summary statistics for permanent job vacancies advertised in London with a requirement for JNI skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited JNI over the 6 months to 24 September 2018 with a comparison to the same period in the previous 2 years.

Java Native Interface (JNI)
England > London
6 months to
24 Sep 2018
Same period 2017 Same period 2016
Rank 793 809 861
Rank change year-on-year +16 +52 +58
Permanent jobs citing JNI 15 32 16
As % of all permanent IT jobs advertised in London 0.022% 0.043% 0.020%
As % of the Libraries, Frameworks & Software Standards category 0.053% 0.11% 0.050%
Number of salaries quoted 15 19 15
London median annual salary £55,000 £45,000 £80,000
Median salary % change year-on-year +22.22% -43.75% +23.79%
10th Percentile £47,500 £37,500 £48,750
90th Percentile £67,500 £95,000 £85,000
England median annual salary £55,000 £43,750 £70,000
% change year-on-year +25.71% -37.50% -6.67%

JNI is in the Software Libraries and Frameworks category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in London with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
London
Permanent vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 28,300 29,089 31,887
As % of all permanent IT jobs advertised in London 41.35% 39.25% 40.68%
Number of salaries quoted 23,134 23,553 28,122
London median annual salary £65,000 £60,000 £57,500
Median salary % change year-on-year +8.33% +4.35% +4.55%
10th Percentile £37,500 £36,250 £35,000
90th Percentile £95,000 £90,000 £85,000
England median annual salary £52,138 £50,000 £47,500
% change year-on-year +4.28% +5.26% +5.56%

JNI
Job Vacancy Trend in London

Job postings citing JNI as a percentage of all IT jobs advertised in London.

Job vacancy trend for JNI in London

JNI
Salary Trend in London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing JNI in London.

Salary trend for JNI in London

JNI
Job Locations in London

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing JNI within the London region over the 6 months to 24 September 2018. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Past 6 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Central London -30 12 £55,000 +22.22% 1
JNI
England

For the 6 months to 24 September 2018, IT jobs citing JNI also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the London region with a requirement for JNI.

1 15 (100.00%) C++
1 15 (100.00%) Java
1 15 (100.00%) OpenGL
2 12 (80.00%) Unity (Game Engine)
2 12 (80.00%) Game Development
2 12 (80.00%) C#
2 12 (80.00%) Self-Motivation
2 12 (80.00%) Mobile Games
2 12 (80.00%) Games
2 12 (80.00%) Objective-C
2 12 (80.00%) Agile Software Development
3 3 (20.00%) Kotlin
3 3 (20.00%) OpenGL ES
3 3 (20.00%) Gradle
3 3 (20.00%) Android Development
3 3 (20.00%) Android NDK
3 3 (20.00%) Mathematics
3 3 (20.00%) Computer Science
3 3 (20.00%) Android
3 3 (20.00%) Git (software)
3 3 (20.00%) JavaScript
3 3 (20.00%) PhD

JNI
Co-occurring IT Skills in London 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:

Development Applications
1 3 (20.00%) Git (software)
1 3 (20.00%) Gradle
General
1 12 (80.00%) Games
Job Titles
1 15 (100.00%) Developer
2 12 (80.00%) C# Developer
2 12 (80.00%) C++ Developer
2 12 (80.00%) C++ Games Developer
2 12 (80.00%) C++/C# Developer
2 12 (80.00%) Games Developer
3 7 (46.67%) Lead C# Developer
3 7 (46.67%) Lead Developer
4 3 (20.00%) Android Developer
Libraries, Frameworks & Software Standards
1 15 (100.00%) OpenGL
2 12 (80.00%) Unity (Game Engine)
3 3 (20.00%) Android NDK
3 3 (20.00%) OpenGL ES
Miscellaneous
1 12 (80.00%) Mobile Games
1 12 (80.00%) Self-Motivation
2 3 (20.00%) Computer Science
Operating Systems
1 3 (20.00%) Android
Processes & Methodologies
1 12 (80.00%) Agile Software Development
1 12 (80.00%) Game Development
2 3 (20.00%) Android Development
2 3 (20.00%) Mathematics
Programming Languages
1 15 (100.00%) C++
1 15 (100.00%) Java
2 12 (80.00%) C#
2 12 (80.00%) Objective-C
3 3 (20.00%) JavaScript
3 3 (20.00%) Kotlin
Qualifications
1 3 (20.00%) PhD