Period
to 24 February 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 February 2018 with a comparison to the same period in the previous 2 years.

Java Native Interface (JNI)
England > London
6 months to
24 Feb 2018
Same period 2017 Same period 2016
Rank 809 820 896
Rank change year-on-year +11 +76 -4
Permanent jobs citing JNI 15 4 5
As % of all permanent IT jobs advertised in London 0.022% 0.006% 0.006%
As % of the Libraries, Frameworks & Software Standards category 0.054% 0.014% 0.015%
Number of salaries quoted 6 2 5
London median annual salary £67,500 £85,000 £80,000
Median salary % change year-on-year -20.59% +6.25% +25.49%
10th Percentile £40,000 £80,000 £75,000
90th Percentile £172,500 £90,000 £85,000
England median annual salary £45,000 £85,000 £68,750
% change year-on-year -47.06% +23.64% +44.74%

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 27,999 27,999 33,445
As % of all permanent IT jobs advertised in London 40.22% 40.07% 38.93%
Number of salaries quoted 23,544 24,439 28,908
London median annual salary £60,000 £60,000 £55,000
Median salary % change year-on-year - +9.09% -
10th Percentile £37,500 £35,000 £35,000
90th Percentile £90,000 £87,500 £85,000
England median annual salary £50,000 £47,500 £46,500
% change year-on-year +5.26% +2.15% +3.33%

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 24 February 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 24 February 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 -35 1 - -
JNI
England

For the 6 months to 24 February 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%) Java
2 11 (73.33%) C++
3 9 (60.00%) Linux
4 8 (53.33%) Software Engineering
5 7 (46.67%) Front Office
6 6 (40.00%) Fixed Income
6 6 (40.00%) Apache
6 6 (40.00%) Derivative
6 6 (40.00%) Interest Rate Derivative
6 6 (40.00%) Android
6 6 (40.00%) Apache Hive
6 6 (40.00%) Apache Spark
6 6 (40.00%) React
7 5 (33.33%) ZeroMQ
7 5 (33.33%) Kafka
7 5 (33.33%) Apache Cassandra
8 4 (26.67%) JavaScript
8 4 (26.67%) Android Development
9 3 (20.00%) Low Latency
9 3 (20.00%) Algorithms
9 3 (20.00%) Analytics
9 3 (20.00%) Open Source
9 3 (20.00%) Test Automation
9 3 (20.00%) Web Development
9 3 (20.00%) Degree
9 3 (20.00%) Mathematics
10 2 (13.33%) Objective-C
10 2 (13.33%) Refactoring
10 2 (13.33%) Penetration Testing
10 2 (13.33%) Algorithmic Trading

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 6 (40.00%) Apache
1 6 (40.00%) Apache Spark
2 1 (6.67%) Ethereum
Applications
1 1 (6.67%) Microsoft Excel
Cloud Services
1 2 (13.33%) GitHub
2 1 (6.67%) Google Play
Communications & Networking
1 1 (6.67%) HTTP
1 1 (6.67%) Internet
Database & Business Intelligence
1 6 (40.00%) Apache Hive
2 5 (33.33%) Apache Cassandra
3 2 (13.33%) Big Data
3 2 (13.33%) GIS
4 1 (6.67%) Blockchain
General
1 7 (46.67%) Front Office
2 1 (6.67%) Advertising
2 1 (6.67%) Finance
Job Titles
1 7 (46.67%) Software Engineer
2 5 (33.33%) Developer
2 5 (33.33%) Senior Software Engineer
3 3 (20.00%) Java Developer
4 2 (13.33%) Android Developer
4 2 (13.33%) Android Engineer
4 2 (13.33%) Android Software Engineer
4 2 (13.33%) Java Engineer
4 2 (13.33%) Java Software Engineer
4 2 (13.33%) Penetration Tester
4 2 (13.33%) Senior Developer
4 2 (13.33%) Senior Java Developer
4 2 (13.33%) Tester
5 1 (6.67%) Angular Developer
5 1 (6.67%) Blockchain Developer
5 1 (6.67%) Full Stack Developer
5 1 (6.67%) Java Android Developer
5 1 (6.67%) Java Quantitative Developer
5 1 (6.67%) Low Latency Java Developer
5 1 (6.67%) Senior Architect
Libraries, Frameworks & Software Standards
1 6 (40.00%) React
2 5 (33.33%) Kafka
2 5 (33.33%) ZeroMQ
3 2 (13.33%) .NET
3 2 (13.33%) J2EE
4 1 (6.67%) Angular 2
4 1 (6.67%) AngularJS
4 1 (6.67%) JAX-RS
Miscellaneous
1 6 (40.00%) Derivative
1 6 (40.00%) Fixed Income
1 6 (40.00%) Interest Rate Derivative
2 3 (20.00%) Algorithms
3 2 (13.33%) Data Structures
3 2 (13.33%) Foreign Exchange (FX)
3 2 (13.33%) Virtual Team
4 1 (6.67%) Analytical Skills
4 1 (6.67%) Bitcoin
4 1 (6.67%) Computer Science
4 1 (6.67%) Fintech
4 1 (6.67%) Greenfield Project
4 1 (6.67%) Mobile App
Operating Systems
1 9 (60.00%) Linux
2 6 (40.00%) Android
Processes & Methodologies
1 8 (53.33%) Software Engineering
2 4 (26.67%) Android Development
3 3 (20.00%) Analytics
3 3 (20.00%) Low Latency
3 3 (20.00%) Mathematics
3 3 (20.00%) Open Source
3 3 (20.00%) Test Automation
3 3 (20.00%) Web Development
4 2 (13.33%) Algorithmic Trading
4 2 (13.33%) Big Data Analytics
4 2 (13.33%) Cybersecurity
4 2 (13.33%) Data Analytics
4 2 (13.33%) Information Security
4 2 (13.33%) Manual Testing
4 2 (13.33%) Penetration Testing
4 2 (13.33%) Rapid Prototyping
4 2 (13.33%) Refactoring
4 2 (13.33%) Release Management
4 2 (13.33%) Security Management
4 2 (13.33%) Time Management
Programming Languages
1 15 (100.00%) Java
2 11 (73.33%) C++
3 4 (26.67%) JavaScript
4 2 (13.33%) C#
4 2 (13.33%) Objective-C
5 1 (6.67%) C
5 1 (6.67%) Kotlin
5 1 (6.67%) PHP
5 1 (6.67%) VBA
Qualifications
1 3 (20.00%) Degree
System Software
1 2 (13.33%) Firmware
Vendors
1 1 (6.67%) Google