Period
to 21 October 2018

The following table provides summary statistics for contract job vacancies advertised in the City of 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 6 months to 21 October 2018 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
Central London > City of London
6 months to
21 Oct 2018
Same period 2017 Same period 2016
Rank 246 246 -
Rank change year-on-year 0 - -
Contract jobs citing Java Concurrency 6 4 0
As % of all contract IT jobs advertised in the City of London 0.087% 0.058% -
As % of the Libraries, Frameworks & Software Standards category 0.22% 0.15% -
Number of daily rates quoted 1 4 0
City of London median daily rate £575 £725 -
Median daily rate % change year-on-year -20.69% - -
Central London median daily rate £575 £725 -
% change year-on-year -20.69% - -
Number of hourly rates quoted 0 0 0
City of London median hourly rate - - -
Central London median hourly rate - - -

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

All Software Libraries and Frameworks
City of London
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 2,783 2,627 2,370
As % of all contract IT jobs advertised in the City of London 40.18% 38.29% 35.58%
Number of daily rates quoted 2,315 2,173 2,024
City of London median daily rate £525 £505 £475
Median daily rate % change year-on-year +3.96% +6.32% -
10th Percentile £399 £363 £325
90th Percentile £675 £650 £638
Central London median daily rate £525 £500 £469
% change year-on-year +5.00% +6.61% +4.22%
Number of hourly rates quoted 6 6 4
City of London median hourly rate £32.75 £21.50 £35.00
Median hourly rate % change year-on-year +52.33% -38.57% -
10th Percentile £17.90 £18.38 £19.00
90th Percentile £81.63 £27.74 £56.31
Central London median hourly rate £35.00 £21.50 £35.00
% change year-on-year +62.79% -38.57% -

Java Concurrency
Job Vacancy Trend in the City of London

Job postings citing Java Concurrency as a percentage of all IT jobs advertised in the City of London.

Job vacancy trend for Java Concurrency in the City of London

Java Concurrency
Contractor Daily Rate Trend in the City of London

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

Contractor daily rate trend for Java Concurrency in the City of London

For the 6 months to 21 October 2018, IT contractor jobs citing Java Concurrency also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the City of London region with a requirement for Java Concurrency.

1 6 (100.00%) Java
1 6 (100.00%) Agile Software Development
1 6 (100.00%) Open Source
2 4 (66.67%) Test Automation
2 4 (66.67%) Amazon AWS
2 4 (66.67%) Kafka
2 4 (66.67%) Spring
2 4 (66.67%) Microservices
2 4 (66.67%) Apache Spark
2 4 (66.67%) Kubernetes
2 4 (66.67%) Spark Streaming
2 4 (66.67%) Flink
2 4 (66.67%) Docker
2 4 (66.67%) Lambda Expressions
3 3 (50.00%) ISTQB Advanced Certification
3 3 (50.00%) WebSockets
3 3 (50.00%) Continuous Delivery
3 3 (50.00%) Problem-Solving
3 3 (50.00%) HTTP
3 3 (50.00%) ISTQB
3 3 (50.00%) QA
4 2 (33.33%) Performance Testing
4 2 (33.33%) Integration Testing
4 2 (33.33%) Atlassian Bamboo
4 2 (33.33%) Continuous Integration
4 2 (33.33%) Multithreading
4 2 (33.33%) TestNG
4 2 (33.33%) EasyMock
4 2 (33.33%) Jenkins
4 2 (33.33%) Low Latency

Java Concurrency
Co-occurring IT Skills in the City of 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 4 (66.67%) Apache Spark
Cloud Services
1 4 (66.67%) Amazon AWS
Communications & Networking
1 3 (50.00%) HTTP
Database & Business Intelligence
1 4 (66.67%) Flink
Development Applications
1 2 (33.33%) Atlassian Bamboo
1 2 (33.33%) EasyMock
1 2 (33.33%) Gatling
1 2 (33.33%) Jenkins
1 2 (33.33%) JUnit
1 2 (33.33%) Mockito
1 2 (33.33%) TestNG
1 2 (33.33%) Travis CI
General
1 2 (33.33%) Banking
1 2 (33.33%) Front Office
1 2 (33.33%) Investment Banking
Job Titles
1 4 (66.67%) Developer
1 4 (66.67%) Java Developer
2 3 (50.00%) Senior Developer
2 3 (50.00%) Senior Java Developer
3 2 (33.33%) Senior Software Testing Engineer
3 2 (33.33%) Software Testing Engineer
3 2 (33.33%) Testing Engineer
4 1 (16.67%) Low Latency Java Developer
Libraries, Frameworks & Software Standards
1 4 (66.67%) Kafka
1 4 (66.67%) Lambda Expressions
1 4 (66.67%) Spark Streaming
1 4 (66.67%) Spring
2 3 (50.00%) WebSockets
3 2 (33.33%) FIX Protocol
3 2 (33.33%) WireMock
Miscellaneous
1 2 (33.33%) Foreign Exchange (FX)
1 2 (33.33%) N-Tier
Processes & Methodologies
1 6 (100.00%) Agile Software Development
1 6 (100.00%) Open Source
2 4 (66.67%) Microservices
2 4 (66.67%) Test Automation
3 3 (50.00%) Continuous Delivery
3 3 (50.00%) Problem-Solving
4 2 (33.33%) Capacity Planning
4 2 (33.33%) Continuous Integration
4 2 (33.33%) Exploratory Testing
4 2 (33.33%) Garbage Collection
4 2 (33.33%) Integration Testing
4 2 (33.33%) Low Latency
4 2 (33.33%) Multithreading
4 2 (33.33%) Pair Programming
4 2 (33.33%) Performance Testing
4 2 (33.33%) Risk Management
4 2 (33.33%) Scenario Testing
4 2 (33.33%) Software Testing
Programming Languages
1 6 (100.00%) Java
2 1 (16.67%) Java 8
Qualifications
1 3 (50.00%) ISTQB
1 3 (50.00%) ISTQB Advanced Certification
Quality Assurance & Compliance
1 3 (50.00%) QA
System Software
1 4 (66.67%) Docker
Systems Management
1 4 (66.67%) Kubernetes