The following table provides summary statistics for contract job vacancies 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 26 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.

Drools
UK
3 months to
26 Jun 2017
Same period 2016 Same period 2015
Rank 586 602 604
Rank change year-on-year +16 +2  
Contract jobs citing Drools 21 49 37
As % of all contract IT jobs advertised in the UK 0.045% 0.092% 0.066%
As % of the Libraries, Frameworks & Software Standards category 0.14% 0.32% 0.24%
Number of daily rates quoted 10 34 20
Median daily rate £538 £463 £373
Median daily rate % change year-on-year +16.21% +24.16%  
90% offered a daily rate of more than £448 £340 £300
10% offered a daily rate of more than £578 £550 £605
UK excluding London median daily rate £500 £368 £370
% change year-on-year +36.05% -0.67%  
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 with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
UK
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 15051 15100 15398
As % of all contract IT job vacancies advertised in the UK 32.01% 28.45% 27.53%
Number of daily rates quoted 10395 10636 10284
Median daily rate £425 £420 £388
Median daily rate % change year-on-year +1.19% +8.38%  
90% offered a daily rate of more than £315 £300 £285
10% offered a daily rate of more than £580 £550 £550
UK excluding London median daily rate £400 £375 £350
% change year-on-year +6.66% +7.14%  
Number of hourly rates quoted 196 180 213
Median hourly rate £42.50 £36.00 £37.45
Median hourly rate % change year-on-year +18.05% -3.87%  
90% offered a hourly rate of more than £21.00 £18.80 £17.86
10% offered a hourly rate of more than £55.00 £50.00 £55.00
UK excluding London median hourly rate £42.50 £36.00 £40.00
% change year-on-year +18.05% -10.00%  

Drools
Job Vacancy Trend

The job posting trend of jobs advertised 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 the UK

Drools
Contractor Daily Rate Trend

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

Contractor daily rate trend for Drools in the UK

Drools
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing Drools over the 3 months to 26 June 2017.

Contractor daily rate histogram for Drools in the UK

Drools
Contractor Hourly Rate Trend

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing Drools.

Contractor hourly rate trend for Drools in the UK

Drools
Top 12 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Drools within the UK over the 3 months to 26 June 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
England +29 21 £538 +2.38% 7
London -10 14 £538 +2.38% 5
Croydon +3 6 £548 +21.66% 3
South East +28 5 £438 -16.66%
Berkshire - 3 £450 -
Newbury - 3 £450 -
Liverpool - 2 £600 - 2
Merseyside - 2 £600 - 2
North West - 2 £600 - 2
Surrey -1 1 £425 -19.04%
Middlesex - 1 - -
Guildford - 1 £425 -

For the 6 months to 26 June 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 with a requirement for Drools.

1 33 (94.29%) Java
2 21 (60.00%) REST
3 19 (54.29%) Spring
4 18 (51.43%) Agile Software Development
5 16 (45.71%) TDD
5 16 (45.71%) Oracle
5 16 (45.71%) SOA
5 16 (45.71%) Security Cleared
6 15 (42.86%) Oracle SOA Suite
7 14 (40.00%) SC Cleared
7 14 (40.00%) Maven
7 14 (40.00%) Eclipse
7 14 (40.00%) Apache Camel
7 14 (40.00%) Microservices
8 13 (37.14%) Apache Spark
8 13 (37.14%) Spring Boot
8 13 (37.14%) Linux
8 13 (37.14%) Hadoop
8 13 (37.14%) Big Data
8 13 (37.14%) Kafka
9 12 (34.29%) HBase
9 12 (34.29%) Apache ZooKeeper
9 12 (34.29%) Cucumber
9 12 (34.29%) BDD
9 12 (34.29%) Data Architecture
9 12 (34.29%) Apache Solr
9 12 (34.29%) Kerberos
9 12 (34.29%) Algorithms
9 12 (34.29%) Docker
9 12 (34.29%) HDFS

Drools
Co-occurring IT Skills 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 15 (42.86%) Oracle SOA Suite
2 13 (37.14%) Apache Spark
3 12 (34.29%) Apache Solr
4 11 (31.43%) Confluence
5 8 (22.86%) JBoss
6 3 (8.57%) Apache
6 3 (8.57%) Tomcat
7 1 (2.86%) OpenStack
7 1 (2.86%) WebSphere
Business Applications
1 5 (14.29%) BusinessWorks
2 1 (2.86%) Oracle BPM
2 1 (2.86%) SAP Oil and Gas
Cloud Services
1 5 (14.29%) GitHub
2 2 (5.71%) OpenShift
Communications & Networking
1 12 (34.29%) Kerberos
2 1 (2.86%) FTP
Database & Business Intelligence
1 13 (37.14%) Big Data
1 13 (37.14%) Hadoop
2 12 (34.29%) HBase
3 9 (25.71%) PostgreSQL
3 9 (25.71%) Relational Database
4 5 (14.29%) Oracle Database
4 5 (14.29%) SQL Server
5 3 (8.57%) MySQL
6 1 (2.86%) MongoDB
Development Applications
1 14 (40.00%) Eclipse
1 14 (40.00%) Maven
2 12 (34.29%) Cucumber
3 11 (31.43%) JIRA
4 9 (25.71%) Jenkins
5 7 (20.00%) IntelliJ
6 6 (17.14%) JUnit
7 5 (14.29%) ANTLR
8 4 (11.43%) Git (software)
9 3 (8.57%) GitLab
10 2 (5.71%) Subversion
11 1 (2.86%) Ant
11 1 (2.86%) Bitbucket
11 1 (2.86%) Checkstyle
11 1 (2.86%) SoapUI
11 1 (2.86%) XMLUnit
General
1 5 (14.29%) Finance
2 1 (2.86%) Banking
2 1 (2.86%) Electronics
2 1 (2.86%) Manufacturing
2 1 (2.86%) Marketing
2 1 (2.86%) Retail
2 1 (2.86%) Telecoms
Job Titles
1 23 (65.71%) Developer
2 14 (40.00%) Java Developer
3 9 (25.71%) Data Engineer
4 7 (20.00%) Senior Developer
4 7 (20.00%) Senior Java Developer
5 6 (17.14%) Architect
5 6 (17.14%) Big Data Engineer
6 5 (14.29%) Hadoop Engineer
7 4 (11.43%) Big Data Developer
7 4 (11.43%) Solutions Architect
8 3 (8.57%) Hadoop Developer
9 2 (5.71%) Java Architect
9 2 (5.71%) Java Engineer
9 2 (5.71%) Java Web Developer
9 2 (5.71%) Lead Developer
9 2 (5.71%) Lead Java Developer
9 2 (5.71%) Senior Data Engineer
9 2 (5.71%) Technical Developer
9 2 (5.71%) Technical Leader
9 2 (5.71%) Web Developer
Libraries, Frameworks & Software Standards
1 21 (60.00%) REST
2 19 (54.29%) Spring
3 14 (40.00%) Apache Camel
4 13 (37.14%) Kafka
4 13 (37.14%) Spring Boot
5 11 (31.43%) JMS
6 10 (28.57%) Web Services
7 9 (25.71%) JPA
8 8 (22.86%) HTML
8 8 (22.86%) jBPM
9 7 (20.00%) AngularJS
9 7 (20.00%) Hibernate
9 7 (20.00%) Java EE
9 7 (20.00%) XML
10 5 (14.29%) Apache Thrift
10 5 (14.29%) MyBatis
10 5 (14.29%) XACML
10 5 (14.29%) XSD
11 4 (11.43%) SOAP
11 4 (11.43%) XSLT
Miscellaneous
1 12 (34.29%) Algorithms
2 4 (11.43%) Computer Science
3 1 (2.86%) Analytical Skills
3 1 (2.86%) Enterprise Software
3 1 (2.86%) Equities
3 1 (2.86%) Fixed Income
Operating Systems
1 13 (37.14%) Linux
2 3 (8.57%) Unix
3 2 (5.71%) Debian
3 2 (5.71%) Ubuntu
Processes & Methodologies
1 18 (51.43%) Agile Software Development
2 16 (45.71%) SOA
2 16 (45.71%) TDD
3 14 (40.00%) Microservices
4 12 (34.29%) BDD
4 12 (34.29%) Data Architecture
5 9 (25.71%) BPMN
6 8 (22.86%) Scrum
7 5 (14.29%) Continuous Integration
7 5 (14.29%) Information Security
7 5 (14.29%) Technical Architecture
7 5 (14.29%) UML
7 5 (14.29%) Use Case
8 4 (11.43%) Coaching
8 4 (11.43%) EAI
8 4 (11.43%) Mentoring
8 4 (11.43%) MVC
8 4 (11.43%) OO
8 4 (11.43%) TOGAF
8 4 (11.43%) Wireframes
Programming Languages
1 33 (94.29%) Java
2 11 (31.43%) SQL
3 5 (14.29%) Python
4 3 (8.57%) JavaScript
4 3 (8.57%) PL/SQL
5 1 (2.86%) C++
5 1 (2.86%) T-SQL
5 1 (2.86%) XPath
Qualifications
1 16 (45.71%) Security Cleared
2 14 (40.00%) SC Cleared
3 2 (5.71%) DBS Check
Quality Assurance & Compliance
1 1 (2.86%) QA
System Software
1 12 (34.29%) Apache ZooKeeper
1 12 (34.29%) Docker
1 12 (34.29%) HDFS
Systems Management
1 10 (28.57%) Kubernetes
2 9 (25.71%) Ansible
2 9 (25.71%) Terraform
Vendors
1 16 (45.71%) Oracle
2 6 (17.14%) Red Hat
3 5 (14.29%) TIBCO
4 2 (5.71%) MuleSoft
5 1 (2.86%) SAP
5 1 (2.86%) Solace
5 1 (2.86%) Sybase
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