The following table provides summary statistics for contract job vacancies advertised in London with a requirement for Java Concurrency skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Java Concurrency over the 3 months to 22 June 2017 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Java Concurrency
England / London
3 months to
22 Jun 2017
Same period 2016 Same period 2015
Rank 415 428 427
Rank change year-on-year +13 -1  
Contract jobs citing Java Concurrency 1 3 1
As % of all contract IT jobs advertised in London 0.005% 0.014% 0.004%
As % of the Libraries, Frameworks & Software Standards category 0.013% 0.043% 0.014%
Number of daily rates quoted 1 2 1
Median daily rate £600 £456 £675
Median daily rate % change year-on-year +31.50% -32.40%  
UK excluding London median daily rate - - -
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

Java Concurrency is in the industry standards, technical specifications and software library and framework skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in London with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
London
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 7464 7033 7352
As % of all contract IT job vacancies advertised in London 36.00% 32.40% 31.34%
Number of daily rates quoted 5536 5401 5349
Median daily rate £485 £450 £425
Median daily rate % change year-on-year +7.77% +5.88%  
90% offered a daily rate of more than £350 £325 £310
10% offered a daily rate of more than £600 £600 £575
UK excluding London median daily rate £400 £375 £350
% change year-on-year +6.66% +7.14%  
Number of hourly rates quoted 59 24 51
Median hourly rate £30.00 £40.00 £22.50
Median hourly rate % change year-on-year -25.00% +77.77%  
90% offered a hourly rate of more than £16.00 £20.00 £16.17
10% offered a hourly rate of more than £55.00 £190.00 £60.00
UK excluding London median hourly rate £42.50 £36.00 £38.89
% change year-on-year +18.05% -7.41%  

Java Concurrency
Job Vacancy Trend in London

The job posting trend of jobs advertised in London citing Java Concurrency as a proportion of all contract or permanent IT jobs with a match in the Libraries, Frameworks & Software Standards category.

Job vacancy trend for Java Concurrency in London

Java Concurrency
Contractor Daily Rate Trend in London

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Java Concurrency in London.

Contractor daily rate trend for Java Concurrency in London

For the 6 months to 22 June 2017, IT contractor jobs citing Java Concurrency 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 London region with a requirement for Java Concurrency.

1 3 (100.00%) Java
2 2 (66.67%) Multithreading
2 2 (66.67%) Concurrent Programming
2 2 (66.67%) Fintech
3 1 (33.33%) HTML5
3 1 (33.33%) Backbone.js
3 1 (33.33%) AngularJS
3 1 (33.33%) Low Latency
3 1 (33.33%) MiFID
3 1 (33.33%) C++
3 1 (33.33%) HTML
3 1 (33.33%) Front Office
3 1 (33.33%) Finance
3 1 (33.33%) Games
3 1 (33.33%) JavaScript
3 1 (33.33%) CSS
3 1 (33.33%) OO
3 1 (33.33%) Tomcat
3 1 (33.33%) Foreign Exchange (FX)

Java Concurrency
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 1 (33.33%) Tomcat
General
1 1 (33.33%) Finance
1 1 (33.33%) Front Office
1 1 (33.33%) Games
Job Titles
1 3 (100.00%) Developer
2 2 (66.67%) Java Developer
3 1 (33.33%) Angular Developer
3 1 (33.33%) Front Office Developer
3 1 (33.33%) Games Developer
3 1 (33.33%) Java Games Developer
Libraries, Frameworks & Software Standards
1 1 (33.33%) AngularJS
1 1 (33.33%) Backbone.js
1 1 (33.33%) CSS
1 1 (33.33%) HTML
1 1 (33.33%) HTML5
Miscellaneous
1 2 (66.67%) Fintech
2 1 (33.33%) Foreign Exchange (FX)
Processes & Methodologies
1 2 (66.67%) Concurrent Programming
1 2 (66.67%) Multithreading
2 1 (33.33%) Low Latency
2 1 (33.33%) OO
Programming Languages
1 3 (100.00%) Java
2 1 (33.33%) C++
2 1 (33.33%) JavaScript
Quality Assurance & Compliance
1 1 (33.33%) MiFID