Period
to 22 June 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 22 June 2018 with a comparison to the same period in the previous 2 years.

Java Native Interface (JNI)
England > London
6 months to
22 Jun 2018
Same period 2017 Same period 2016
Rank 826 832 873
Rank change year-on-year +6 +41 +27
Permanent jobs citing JNI 9 10 27
As % of all permanent IT jobs advertised in London 0.013% 0.014% 0.033%
As % of the Libraries, Frameworks & Software Standards category 0.032% 0.035% 0.082%
Number of salaries quoted 4 6 27
London median annual salary £45,000 £40,000 £80,000
Median salary % change year-on-year +12.50% -50.00% -14.67%
10th Percentile £39,000 £37,500 £58,500
90th Percentile £59,500 £47,500 £88,750
England median annual salary £45,000 £40,000 £80,000
% change year-on-year +12.50% -50.00% +23.08%

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 28,400 28,454 33,123
As % of all permanent IT jobs advertised in London 40.63% 40.51% 40.33%
Number of salaries quoted 23,224 24,015 29,065
London median annual salary £62,500 £60,000 £55,000
Median salary % change year-on-year +4.17% +9.09% -
10th Percentile £37,500 £36,250 £35,000
90th Percentile £92,500 £87,500 £85,000
England median annual salary £50,000 £47,500 £47,500
% change year-on-year +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
Salary Histogram in London

The salary distribution of IT jobs citing JNI in London over the 6 months to 22 June 2018.

Salary histogram 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 22 June 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 -16 1 - -
JNI
England

For the 6 months to 22 June 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 9 (100.00%) Java
2 8 (88.89%) C++
3 6 (66.67%) JavaScript
4 5 (55.56%) Software Engineering
4 5 (55.56%) Android
4 5 (55.56%) Android Development
5 4 (44.44%) Analytics
5 4 (44.44%) Derivative
5 4 (44.44%) Linux
5 4 (44.44%) Java 8
6 3 (33.33%) Apache
6 3 (33.33%) Interest Rate Derivative
6 3 (33.33%) Finance
6 3 (33.33%) Fixed Income
6 3 (33.33%) Apache Hive
6 3 (33.33%) Apache Spark
6 3 (33.33%) React
6 3 (33.33%) Test Automation
6 3 (33.33%) Web Development
6 3 (33.33%) Degree
7 2 (22.22%) Refactoring
7 2 (22.22%) Mathematics
7 2 (22.22%) Release Management
7 2 (22.22%) Manual Testing
7 2 (22.22%) Rapid Prototyping
7 2 (22.22%) Open Source
7 2 (22.22%) GitHub
7 2 (22.22%) AngularJS
7 2 (22.22%) Cybersecurity
7 2 (22.22%) Risk Management

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:

Application Platforms
1 3 (33.33%) Apache
1 3 (33.33%) Apache Spark
Applications
1 2 (22.22%) Microsoft Excel
Cloud Services
1 2 (22.22%) GitHub
2 1 (11.11%) Google Play
Communications & Networking
1 1 (11.11%) HTTP
1 1 (11.11%) Internet
Database & Business Intelligence
1 3 (33.33%) Apache Hive
2 1 (11.11%) Apache Cassandra
General
1 3 (33.33%) Finance
2 1 (11.11%) Advertising
2 1 (11.11%) Banking
2 1 (11.11%) Front Office
2 1 (11.11%) Investment Banking
Job Titles
1 6 (66.67%) Developer
2 3 (33.33%) Android Developer
2 3 (33.33%) C++ Developer
2 3 (33.33%) Software Engineer
3 2 (22.22%) Android Engineer
3 2 (22.22%) Android Software Engineer
3 2 (22.22%) Angular Developer
3 2 (22.22%) C++/Java Developer
3 2 (22.22%) Full Stack Developer
3 2 (22.22%) Java Android Developer
3 2 (22.22%) Java Developer
3 2 (22.22%) Java Engineer
3 2 (22.22%) Java Software Engineer
4 1 (11.11%) Senior Software Engineer
Libraries, Frameworks & Software Standards
1 3 (33.33%) React
2 2 (22.22%) Angular 2
2 2 (22.22%) AngularJS
3 1 (11.11%) Kafka
3 1 (11.11%) ZeroMQ
Miscellaneous
1 4 (44.44%) Derivative
2 3 (33.33%) Fixed Income
2 3 (33.33%) Interest Rate Derivative
3 2 (22.22%) Greenfield Project
3 2 (22.22%) Self-Motivation
4 1 (11.11%) Algorithms
4 1 (11.11%) Analytical Skills
4 1 (11.11%) Equities
4 1 (11.11%) Equity Derivative
4 1 (11.11%) Equity Risk
4 1 (11.11%) Foreign Exchange (FX)
4 1 (11.11%) Mobile App
4 1 (11.11%) Pricing Data
Operating Systems
1 5 (55.56%) Android
2 4 (44.44%) Linux
3 1 (11.11%) Unix
Processes & Methodologies
1 5 (55.56%) Android Development
1 5 (55.56%) Software Engineering
2 4 (44.44%) Analytics
3 3 (33.33%) Test Automation
3 3 (33.33%) Web Development
4 2 (22.22%) Cybersecurity
4 2 (22.22%) Manual Testing
4 2 (22.22%) Mathematics
4 2 (22.22%) Open Source
4 2 (22.22%) Prototyping
4 2 (22.22%) Rapid Prototyping
4 2 (22.22%) Refactoring
4 2 (22.22%) Release Management
4 2 (22.22%) Risk Management
4 2 (22.22%) Task Automation
5 1 (11.11%) Agile Software Development
5 1 (11.11%) Market Making
5 1 (11.11%) Mobile Development
5 1 (11.11%) Problem-Solving
5 1 (11.11%) TDD
Programming Languages
1 9 (100.00%) Java
2 8 (88.89%) C++
3 6 (66.67%) JavaScript
4 4 (44.44%) Java 8
5 2 (22.22%) C
5 2 (22.22%) VBA
6 1 (11.11%) Kotlin
6 1 (11.11%) PHP
6 1 (11.11%) Python
6 1 (11.11%) SQL
Qualifications
1 3 (33.33%) Degree
System Software
1 2 (22.22%) Firmware
Vendors
1 1 (11.11%) Google