The following table provides summary statistics for contract job vacancies advertised in London with a requirement for Drools skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Drools over the 3 months to 29 March 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.

Drools
England / London
3 months to
29 Mar 2017
Same period 2016 Same period 2015
Rank - 416 375
Contract jobs citing Drools 0 23 31
As % of all contract IT jobs advertised in London - 0.10% 0.15%
As % of the Libraries, Frameworks & Software Standards category - 0.32% 0.48%
Number of daily rates quoted 0 22 12
Median daily rate - £470 £488
Median daily rate % change year-on-year - -3.58%  
UK excluding London median daily rate £400 £475 £425
% change year-on-year -15.78% +11.76%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

Drools 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 6798 7159 6427
As % of all contract IT job vacancies advertised in London 34.75% 31.90% 30.20%
Number of daily rates quoted 5065 5371 4647
Median daily rate £475 £450 £425
Median daily rate % change year-on-year +5.55% +5.88%  
90% offered a daily rate of more than £345 £325 £310
10% offered a daily rate of more than £613 £600 £575
UK excluding London median daily rate £375 £363 £350
% change year-on-year +3.44% +3.57%  
Number of hourly rates quoted 49 28 27
Median hourly rate £47.50 £50.00 £27.37
Median hourly rate % change year-on-year -5.00% +82.68%  
90% offered a hourly rate of more than £17.01 £21.37 £20.00
10% offered a hourly rate of more than £100.00 £55.00 £55.00
UK excluding London median hourly rate £41.00 £38.00 £36.00
% change year-on-year +7.89% +5.55%  

Drools
Job Vacancy Trend in London

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

Job vacancy trend for Drools in London

Drools
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for Drools in London

For the 6 months to 29 March 2017, IT contractor jobs citing Drools 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 Drools.

1 8 (100.00%) Java
1 8 (100.00%) Agile Software Development
2 7 (87.50%) Banking
3 6 (75.00%) Spring
4 5 (62.50%) Finance
5 4 (50.00%) PostgreSQL
5 4 (50.00%) RDBMS
5 4 (50.00%) Apache
5 4 (50.00%) Python
5 4 (50.00%) Apache Solr
5 4 (50.00%) Scala
5 4 (50.00%) Hadoop
5 4 (50.00%) Open Source
5 4 (50.00%) Apache Hive
5 4 (50.00%) MongoDB
5 4 (50.00%) Apache Cassandra
5 4 (50.00%) NoSQL
5 4 (50.00%) Big Data
5 4 (50.00%) Hortonworks
5 4 (50.00%) Kafka
5 4 (50.00%) AngularJS
5 4 (50.00%) Apache Pig
5 4 (50.00%) MapReduce
5 4 (50.00%) HBase
5 4 (50.00%) Akka
5 4 (50.00%) Relational Database
5 4 (50.00%) Apache Spark
5 4 (50.00%) Hadoop YARN
5 4 (50.00%) Flink
5 4 (50.00%) Data Lake

Drools
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 4 (50.00%) Apache
1 4 (50.00%) Apache Pig
1 4 (50.00%) Apache Solr
1 4 (50.00%) Apache Spark
2 2 (25.00%) JBoss
2 2 (25.00%) Oracle SOA Suite
Cloud Services
1 2 (25.00%) OpenShift
Communications & Networking
1 2 (25.00%) FTP
Database & Business Intelligence
1 4 (50.00%) Apache Cassandra
1 4 (50.00%) Apache Hive
1 4 (50.00%) Big Data
1 4 (50.00%) Data Lake
1 4 (50.00%) Flink
1 4 (50.00%) Hadoop
1 4 (50.00%) HBase
1 4 (50.00%) MongoDB
1 4 (50.00%) NoSQL
1 4 (50.00%) PostgreSQL
1 4 (50.00%) RDBMS
1 4 (50.00%) Relational Database
Development Applications
1 3 (37.50%) Jenkins
1 3 (37.50%) JUnit
2 2 (25.00%) Ant
2 2 (25.00%) Checkstyle
2 2 (25.00%) Eclipse
2 2 (25.00%) IntelliJ
2 2 (25.00%) Maven
2 2 (25.00%) SoapUI
2 2 (25.00%) Subversion
2 2 (25.00%) XMLUnit
General
1 7 (87.50%) Banking
2 5 (62.50%) Finance
Job Titles
1 4 (50.00%) Big Data Engineer
1 4 (50.00%) Data Engineer
1 4 (50.00%) Java Engineer
2 3 (37.50%) Developer
2 3 (37.50%) Java Developer
3 1 (12.50%) Agile Developer
3 1 (12.50%) Agile Java Developer
3 1 (12.50%) EAI Developer
3 1 (12.50%) SOA Developer
Libraries, Frameworks & Software Standards
1 6 (75.00%) Spring
2 4 (50.00%) Akka
2 4 (50.00%) AngularJS
2 4 (50.00%) Kafka
3 2 (25.00%) Apache Camel
3 2 (25.00%) Hibernate
3 2 (25.00%) JavaBeans
3 2 (25.00%) JDBC
3 2 (25.00%) JMS
3 2 (25.00%) Web Services
3 2 (25.00%) XSD
3 2 (25.00%) XSL
Miscellaneous
1 1 (12.50%) Derivative
1 1 (12.50%) Enterprise Software
1 1 (12.50%) OTC Derivatives
Processes & Methodologies
1 8 (100.00%) Agile Software Development
2 4 (50.00%) MapReduce
2 4 (50.00%) Open Source
3 3 (37.50%) Microservices
3 3 (37.50%) Unit Testing
4 2 (25.00%) Code Coverage
4 2 (25.00%) Fund Management
4 2 (25.00%) SOA
4 2 (25.00%) UML
4 2 (25.00%) Use Case
4 2 (25.00%) User Acceptance Testing
4 2 (25.00%) Waterfall
5 1 (12.50%) Automated Testing
5 1 (12.50%) Automation Testing
5 1 (12.50%) BDD
5 1 (12.50%) Continuous Delivery
5 1 (12.50%) Continuous Integration
5 1 (12.50%) EAI
5 1 (12.50%) TDD
Programming Languages
1 8 (100.00%) Java
2 4 (50.00%) Python
2 4 (50.00%) Scala
3 2 (25.00%) PL/SQL
3 2 (25.00%) SQL
3 2 (25.00%) T-SQL
3 2 (25.00%) XPath
Quality Assurance & Compliance
1 2 (25.00%) QA
Systems Management
1 4 (50.00%) Hadoop YARN
Vendors
1 4 (50.00%) Hortonworks
2 2 (25.00%) Oracle
2 2 (25.00%) Solace
2 2 (25.00%) Sybase