The following table provides summary statistics for contract job vacancies advertised in England 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 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.

Drools
UK / England
3 months to
22 Jun 2017
Same period 2016 Same period 2015
Rank 569 609 597
Rank change year-on-year +40 -12  
Contract jobs citing Drools 21 28 25
As % of all contract IT jobs advertised in England 0.049% 0.057% 0.049%
As % of the Libraries, Frameworks & Software Standards category 0.15% 0.20% 0.18%
Number of daily rates quoted 10 18 14
Median daily rate £538 £525 £403
Median daily rate % change year-on-year +2.38% +30.43%  
90% offered a daily rate of more than £448 £461 £300
10% offered a daily rate of more than £578 £550 £635
UK excluding London median daily rate £500 £370 £365
% change year-on-year +35.13% +1.36%  
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 England with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
England
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 13923 14344 14192
As % of all contract IT job vacancies advertised in England 32.35% 28.96% 27.75%
Number of daily rates quoted 9670 10235 9678
Median daily rate £450 £425 £388
Median daily rate % change year-on-year +5.88% +9.67%  
90% offered a daily rate of more than £320 £300 £288
10% offered a daily rate of more than £588 £570 £550
UK excluding London median daily rate £400 £375 £350
% change year-on-year +6.66% +7.14%  
Number of hourly rates quoted 194 164 188
Median hourly rate £41.50 £36.00 £35.00
Median hourly rate % change year-on-year +15.27% +2.85%  
90% offered a hourly rate of more than £19.26 £18.80 £16.43
10% offered a hourly rate of more than £52.50 £50.00 £55.00
UK excluding London median hourly rate £42.50 £36.00 £38.89
% change year-on-year +18.05% -7.41%  

Drools
Job Vacancy Trend in England

The job posting trend of jobs advertised in England 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 England

Drools
Contractor Daily Rate Trend in England

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

Contractor daily rate trend for Drools in England

Drools
Contractor Daily Rate Histogram in England

The daily rate distribution of IT jobs citing Drools in England over the 3 months to 22 June 2017.

Contractor daily rate histogram for Drools in England

Drools
Contractor Hourly Rate Trend in England

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

Contractor hourly rate trend for Drools in England

Drools
Contract Job Locations in England

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Drools within the England region over the 3 months to 22 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
London +9 14 £538 +4.87% 5
South East +19 5 £438 -16.66%
North West - 2 £600 -
Drools
UK

For the 6 months to 22 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 across the England region with a requirement for Drools.

1 29 (93.55%) Java
2 20 (64.52%) Spring
3 18 (58.06%) Agile Software Development
4 17 (54.84%) REST
5 14 (45.16%) Microservices
6 13 (41.94%) Apache Spark
6 13 (41.94%) Spring Boot
6 13 (41.94%) Hadoop
6 13 (41.94%) Big Data
6 13 (41.94%) Kafka
6 13 (41.94%) Linux
7 12 (38.71%) Oracle
7 12 (38.71%) Kerberos
7 12 (38.71%) Security Cleared
7 12 (38.71%) Data Architecture
7 12 (38.71%) Apache Solr
7 12 (38.71%) HBase
7 12 (38.71%) Apache ZooKeeper
7 12 (38.71%) Cucumber
7 12 (38.71%) BDD
7 12 (38.71%) TDD
7 12 (38.71%) Algorithms
7 12 (38.71%) Docker
7 12 (38.71%) HDFS
8 11 (35.48%) JIRA
8 11 (35.48%) Confluence
8 11 (35.48%) Apache Camel
8 11 (35.48%) SQL
8 11 (35.48%) SOA
9 10 (32.26%) Oracle SOA Suite

Drools
Co-occurring IT Skills in England 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 13 (41.94%) Apache Spark
2 12 (38.71%) Apache Solr
3 11 (35.48%) Confluence
4 10 (32.26%) Oracle SOA Suite
5 4 (12.90%) JBoss
6 3 (9.68%) Apache
6 3 (9.68%) Tomcat
7 1 (3.23%) OpenStack
7 1 (3.23%) WebSphere
Business Applications
1 5 (16.13%) BusinessWorks
2 1 (3.23%) SAP Oil and Gas
Cloud Services
1 5 (16.13%) GitHub
2 2 (6.45%) OpenShift
Communications & Networking
1 12 (38.71%) Kerberos
2 1 (3.23%) FTP
Database & Business Intelligence
1 13 (41.94%) Big Data
1 13 (41.94%) Hadoop
2 12 (38.71%) HBase
3 10 (32.26%) Relational Database
4 9 (29.03%) PostgreSQL
5 5 (16.13%) SQL Server
6 3 (9.68%) MySQL
7 1 (3.23%) MongoDB
7 1 (3.23%) RDBMS
Development Applications
1 12 (38.71%) Cucumber
2 11 (35.48%) JIRA
3 9 (29.03%) Eclipse
3 9 (29.03%) Jenkins
3 9 (29.03%) Maven
4 7 (22.58%) IntelliJ
5 6 (19.35%) JUnit
6 5 (16.13%) ANTLR
7 3 (9.68%) GitLab
8 2 (6.45%) Subversion
9 1 (3.23%) Ant
9 1 (3.23%) Bitbucket
9 1 (3.23%) Checkstyle
9 1 (3.23%) SoapUI
9 1 (3.23%) XMLUnit
General
1 5 (16.13%) Finance
2 1 (3.23%) Banking
2 1 (3.23%) Electronics
2 1 (3.23%) Manufacturing
2 1 (3.23%) Marketing
2 1 (3.23%) Retail
2 1 (3.23%) Telecoms
Job Titles
1 21 (67.74%) Developer
2 12 (38.71%) Java Developer
3 9 (29.03%) Data Engineer
4 6 (19.35%) Big Data Engineer
4 6 (19.35%) Senior Developer
4 6 (19.35%) Senior Java Developer
5 5 (16.13%) Hadoop Engineer
6 4 (12.90%) Architect
6 4 (12.90%) Big Data Developer
6 4 (12.90%) Solutions Architect
7 3 (9.68%) Hadoop Developer
8 2 (6.45%) Java Engineer
8 2 (6.45%) Java Web Developer
8 2 (6.45%) Senior Data Engineer
8 2 (6.45%) Web Developer
9 1 (3.23%) Agile Developer
9 1 (3.23%) Agile Java Developer
9 1 (3.23%) Integration Developer
9 1 (3.23%) Oracle Developer
9 1 (3.23%) Senior Hadoop Engineer
Libraries, Frameworks & Software Standards
1 20 (64.52%) Spring
2 17 (54.84%) REST
3 13 (41.94%) Kafka
3 13 (41.94%) Spring Boot
4 11 (35.48%) Apache Camel
5 7 (22.58%) JMS
6 6 (19.35%) Web Services
7 5 (16.13%) Apache Thrift
7 5 (16.13%) MyBatis
7 5 (16.13%) XACML
8 4 (12.90%) HTML
8 4 (12.90%) JPA
8 4 (12.90%) XML
9 3 (9.68%) AngularJS
9 3 (9.68%) CSS
9 3 (9.68%) Hibernate
9 3 (9.68%) jBPM
9 3 (9.68%) KnockoutJS
9 3 (9.68%) React
10 2 (6.45%) Polymer
Miscellaneous
1 12 (38.71%) Algorithms
2 5 (16.13%) Computer Science
3 1 (3.23%) Analytical Skills
3 1 (3.23%) Enterprise Software
3 1 (3.23%) Equities
3 1 (3.23%) Fixed Income
Operating Systems
1 13 (41.94%) Linux
2 3 (9.68%) Unix
3 2 (6.45%) Debian
3 2 (6.45%) Ubuntu
Processes & Methodologies
1 18 (58.06%) Agile Software Development
2 14 (45.16%) Microservices
3 12 (38.71%) BDD
3 12 (38.71%) Data Architecture
3 12 (38.71%) TDD
4 11 (35.48%) SOA
5 9 (29.03%) BPMN
6 7 (22.58%) Scrum
7 5 (16.13%) Information Security
7 5 (16.13%) Technical Architecture
7 5 (16.13%) UML
7 5 (16.13%) Use Case
8 4 (12.90%) Domain Models
8 4 (12.90%) EAI
8 4 (12.90%) OO
8 4 (12.90%) TOGAF
8 4 (12.90%) Wireframes
9 3 (9.68%) Data Modelling
9 3 (9.68%) Logical Data Model
9 3 (9.68%) User Acceptance Testing
Programming Languages
1 29 (93.55%) Java
2 11 (35.48%) SQL
3 5 (16.13%) Python
4 3 (9.68%) JavaScript
5 2 (6.45%) PL/SQL
6 1 (3.23%) C++
6 1 (3.23%) T-SQL
6 1 (3.23%) XPath
Qualifications
1 12 (38.71%) Security Cleared
2 10 (32.26%) SC Cleared
3 2 (6.45%) DBS Check
4 1 (3.23%) Computer Science Degree
4 1 (3.23%) Degree
4 1 (3.23%) Sun Certification
Quality Assurance & Compliance
1 1 (3.23%) QA
System Software
1 12 (38.71%) Apache ZooKeeper
1 12 (38.71%) Docker
1 12 (38.71%) HDFS
Systems Management
1 10 (32.26%) Kubernetes
2 9 (29.03%) Ansible
2 9 (29.03%) Terraform
Vendors
1 12 (38.71%) Oracle
2 5 (16.13%) TIBCO
3 2 (6.45%) MuleSoft
4 1 (3.23%) Red Hat
4 1 (3.23%) SAP
4 1 (3.23%) Solace
4 1 (3.23%) Sybase
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