The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for Drools skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited Drools over the 3 months to 24 June 2017 with a comparison to the same period in the previous 2 years.

Drools
London / City of London
3 months to
24 Jun 2017
Same period 2016 Same period 2015
Rank 231 257 310
Rank change year-on-year +26 +53  
Permanent jobs citing Drools 5 5 8
As % of all permanent IT jobs advertised in the City of London 0.097% 0.079% 0.077%
As % of the Libraries, Frameworks & Software Standards category 0.25% 0.19% 0.22%
Number of salaries quoted 5 5 8
Median salary £63,000 £55,000 £55,000
Median salary % change year-on-year +14.54% -  
UK excluding London median salary £40,000 £62,500 £40,000
% change year-on-year -36.00% +56.25%  

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 permanent job vacancies advertised in the City of London with a requirement for industry standards, technical specifications and software library and framework skills.

Software Library & Framework Skills
City of London
Permanent job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 1968 2629 3659
As % of all permanent IT job vacancies advertised in the City of London 38.24% 41.41% 35.22%
Number of salaries quoted 1730 2372 3204
Median salary £60,000 £57,500 £55,000
Median salary % change year-on-year +4.34% +4.54%  
90% offered a salary of more than £42,500 £40,000 £37,500
10% offered a salary of more than £80,000 £75,000 £75,000
UK excluding London median salary £42,500 £40,000 £40,000
% change year-on-year +6.25% -  

Drools
Job Vacancy Trend in the City of London

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

Job vacancy trend for Drools in the City of London

Drools
Salary Trend in the City of London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing Drools in the City of London.

Salary trend for Drools in the City of London

For the 6 months to 24 June 2017, IT jobs citing Drools also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the City of London region with a requirement for Drools.

1 15 (100.00%) Java
2 8 (53.33%) JMS
2 8 (53.33%) Finance
2 8 (53.33%) SQL
2 8 (53.33%) Ant
2 8 (53.33%) Web Services
2 8 (53.33%) XML
2 8 (53.33%) SOA
2 8 (53.33%) FTP
2 8 (53.33%) Subversion
2 8 (53.33%) Maven
2 8 (53.33%) FitNesse
2 8 (53.33%) Integration Testing
2 8 (53.33%) Test Automation
2 8 (53.33%) Jenkins
2 8 (53.33%) Solace
2 8 (53.33%) Greenfield Project
3 7 (46.67%) Analytical Skills
3 7 (46.67%) Apache Camel
3 7 (46.67%) Investment Management
3 7 (46.67%) Software Engineering
3 7 (46.67%) Red Hat
3 7 (46.67%) Middleware
3 7 (46.67%) JBoss
3 7 (46.67%) ActiveMQ
3 7 (46.67%) Migration
3 7 (46.67%) EAI
4 1 (6.67%) Continuous Improvement
4 1 (6.67%) Continuous Deployment
4 1 (6.67%) Open Source

Drools
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 7 (46.67%) JBoss
Communications & Networking
1 8 (53.33%) FTP
Development Applications
1 8 (53.33%) Ant
1 8 (53.33%) FitNesse
1 8 (53.33%) Jenkins
1 8 (53.33%) Maven
1 8 (53.33%) Subversion
General
1 8 (53.33%) Finance
Job Titles
1 15 (100.00%) Developer
2 8 (53.33%) Java Developer
2 8 (53.33%) Lead Developer
3 7 (46.67%) Automation Developer
3 7 (46.67%) Consultant
3 7 (46.67%) Java Consultant
4 2 (13.33%) Java Middleware Consultant
4 2 (13.33%) Java Middleware Developer
4 2 (13.33%) Middleware Consultant
4 2 (13.33%) Middleware Developer
5 1 (6.67%) Automation Test Lead
5 1 (6.67%) Integration Developer
5 1 (6.67%) Lead Java Developer
5 1 (6.67%) Test Automation Developer
Libraries, Frameworks & Software Standards
1 8 (53.33%) JMS
1 8 (53.33%) Web Services
1 8 (53.33%) XML
2 7 (46.67%) ActiveMQ
2 7 (46.67%) Apache Camel
2 7 (46.67%) Middleware
Miscellaneous
1 8 (53.33%) Greenfield Project
2 7 (46.67%) Analytical Skills
3 1 (6.67%) User Experience
Processes & Methodologies
1 8 (53.33%) Integration Testing
1 8 (53.33%) SOA
1 8 (53.33%) Test Automation
2 7 (46.67%) EAI
2 7 (46.67%) Investment Management
2 7 (46.67%) Migration
2 7 (46.67%) Software Engineering
3 1 (6.67%) Continuous Deployment
3 1 (6.67%) Continuous Improvement
3 1 (6.67%) DevOps
3 1 (6.67%) Open Source
Programming Languages
1 15 (100.00%) Java
2 8 (53.33%) SQL
Vendors
1 8 (53.33%) Solace
2 7 (46.67%) Red Hat