Period
to 19 November 2017

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 6 months to 19 November 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
6 months to
19 Nov 2017
Same period 2016 Same period 2015
Rank 485 554 564
Rank change year-on-year +69 +10 +33
Contract jobs citing Drools 149 53 38
As % of all contract IT jobs advertised in London 0.32% 0.12% 0.081%
As % of the Libraries, Frameworks & Software Standards category 0.87% 0.34% 0.25%
Number of daily rates quoted 110 26 21
London median daily rate £550 £500 £450
Median daily rate % change year-on-year +10.00% +11.11% +11.46%
10th Percentile £450 £383 £290
90th Percentile £642 £650 £588
England median daily rate £550 £525 £450
% change year-on-year +4.76% +16.67% +8.11%
Number of hourly rates quoted 0 0 0
London median hourly rate - - -
England median hourly rate - - -

Drools 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 London with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
London
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 17171 15431 15150
As % of all contract IT jobs advertised in London 37.15% 34.36% 32.22%
Number of daily rates quoted 13119 11555 11268
London median daily rate £500 £463 £450
Median daily rate % change year-on-year +8.11% +2.78% +5.88%
10th Percentile £350 £319 £308
90th Percentile £650 £625 £625
England median daily rate £463 £425 £413
% change year-on-year +8.82% +3.03% +3.13%
Number of hourly rates quoted 101 71 93
London median hourly rate £35.00 £40.00 £37.50
Median hourly rate % change year-on-year -12.50% +6.67% +7.14%
10th Percentile £19.00 £19.23 £14.25
90th Percentile £50.00 £57.50 £58.75
England median hourly rate £40.00 £37.50 £37.50
% change year-on-year +6.67% - +9.49%

Drools
Job Vacancy Trend in London

Job postings citing Drools as a percentage of all IT jobs advertised in London.

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

Drools
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing Drools in London over the 6 months to 19 November 2017.

Contractor daily rate histogram for Drools in London

Drools
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Drools within the London region over the 6 months to 19 November 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
South London +27 64 £550 -
Central London -6 5 £550 +4.76%
Drools
England

For the 6 months to 19 November 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.

1 142 (95.30%) Java
2 121 (81.21%) Microservices
3 120 (80.54%) REST
4 90 (60.40%) JIRA
5 89 (59.73%) Confluence
6 87 (58.39%) Agile Software Development
7 82 (55.03%) Security Cleared
8 76 (51.01%) Spring
9 73 (48.99%) Maven
9 73 (48.99%) Big Data
10 72 (48.32%) Apache Spark
11 71 (47.65%) JUnit
12 67 (44.97%) TDD
13 66 (44.30%) JMS
14 65 (43.62%) Hibernate
14 65 (43.62%) Hadoop
15 64 (42.95%) SC Cleared
15 64 (42.95%) Spring Boot
15 64 (42.95%) BDD
16 63 (42.28%) Kafka
16 63 (42.28%) HDFS
16 63 (42.28%) Data Architecture
16 63 (42.28%) Kerberos
17 62 (41.61%) RESTful
17 62 (41.61%) HBase
18 60 (40.27%) Apache Solr
19 59 (39.60%) Checkstyle
19 59 (39.60%) Cucumber
19 59 (39.60%) Relational Database
20 58 (38.93%) Mockito

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 89 (59.73%) Confluence
2 72 (48.32%) Apache Spark
3 60 (40.27%) Apache Solr
4 49 (32.89%) WildFly
5 17 (11.41%) JBoss
6 11 (7.38%) Apache
7 10 (6.71%) Oracle SOA Suite
8 7 (4.70%) Tomcat
9 3 (2.01%) Elasticsearch
10 2 (1.34%) Jetty
Cloud Services
1 15 (10.07%) Amazon AWS
2 10 (6.71%) GitHub
2 10 (6.71%) OpenShift
3 2 (1.34%) Microsoft Azure
Communications & Networking
1 63 (42.28%) Kerberos
2 10 (6.71%) FTP
3 4 (2.68%) SMS
Database & Business Intelligence
1 73 (48.99%) Big Data
2 65 (43.62%) Hadoop
3 62 (41.61%) HBase
4 59 (39.60%) Relational Database
5 49 (32.89%) RDBMS
6 42 (28.19%) PostgreSQL
7 15 (10.07%) DataStax
7 15 (10.07%) NoSQL
8 12 (8.05%) MongoDB
9 10 (6.71%) Redis
10 4 (2.68%) Amazon DynamoDB
11 1 (0.67%) MySQL
Development Applications
1 90 (60.40%) JIRA
2 73 (48.99%) Maven
3 71 (47.65%) JUnit
4 59 (39.60%) Checkstyle
4 59 (39.60%) Cucumber
5 58 (38.93%) Mockito
6 53 (35.57%) Git (software)
7 52 (34.90%) Vagrant
8 49 (32.89%) Liquibase
8 49 (32.89%) SonarQube
9 22 (14.77%) IntelliJ
10 19 (12.75%) Jenkins
11 15 (10.07%) Ant
12 14 (9.40%) Eclipse
12 14 (9.40%) Subversion
13 10 (6.71%) GitLab
13 10 (6.71%) SoapUI
13 10 (6.71%) XMLUnit
14 6 (4.03%) Gradle
14 6 (4.03%) NUnit
General
1 24 (16.11%) Finance
2 20 (13.42%) Banking
3 10 (6.71%) Investment Banking
4 6 (4.03%) Front Office
5 5 (3.36%) Electronics
5 5 (3.36%) Manufacturing
5 5 (3.36%) Marketing
5 5 (3.36%) Telecoms
6 3 (2.01%) Retail
Job Titles
1 98 (65.77%) Developer
2 80 (53.69%) Java Developer
3 33 (22.15%) Data Engineer
4 24 (16.11%) Big Data Engineer
5 22 (14.77%) SC Cleared Java Developer
6 16 (10.74%) Big Data Developer
6 16 (10.74%) Hadoop Engineer
7 14 (9.40%) Senior Data Engineer
8 10 (6.71%) Angular Developer
9 8 (5.37%) Architect
9 8 (5.37%) C# Developer
9 8 (5.37%) Lead Developer
9 8 (5.37%) Lead Java Developer
10 7 (4.70%) JavaScript Developer
10 7 (4.70%) Senior Hadoop Engineer
11 6 (4.03%) Data Architect
11 6 (4.03%) Full Stack Developer
11 6 (4.03%) Tools Developer
12 5 (3.36%) Big Data Architect
12 5 (3.36%) Hadoop Developer
Libraries, Frameworks & Software Standards
1 120 (80.54%) REST
2 76 (51.01%) Spring
3 66 (44.30%) JMS
4 65 (43.62%) Hibernate
5 64 (42.95%) Spring Boot
6 63 (42.28%) Kafka
7 62 (41.61%) RESTful
8 52 (34.90%) JAX-RS
8 52 (34.90%) WireMock
9 50 (33.56%) Apache Camel
10 49 (32.89%) Java EE
10 49 (32.89%) Lambda Expressions
11 15 (10.07%) AngularJS
11 15 (10.07%) TinkerPop
12 14 (9.40%) React
13 13 (8.72%) Web Services
14 10 (6.71%) JavaBeans
14 10 (6.71%) JDBC
14 10 (6.71%) XSD
14 10 (6.71%) XSL
Miscellaneous
1 49 (32.89%) Linux Command Line
2 42 (28.19%) Algorithms
3 10 (6.71%) Analytical Skills
4 9 (6.04%) Enterprise Software
5 8 (5.37%) Greenfield Project
6 6 (4.03%) Foreign Exchange (FX)
7 3 (2.01%) Equities
7 3 (2.01%) Fixed Income
8 1 (0.67%) Data Structures
8 1 (0.67%) SWIFT
Operating Systems
1 52 (34.90%) VMS
2 49 (32.89%) Unix
3 15 (10.07%) Linux
Processes & Methodologies
1 121 (81.21%) Microservices
2 87 (58.39%) Agile Software Development
3 67 (44.97%) TDD
4 64 (42.95%) BDD
5 63 (42.28%) Data Architecture
6 58 (38.93%) OO
7 52 (34.90%) CQRS
7 52 (34.90%) Dependency Injection
7 52 (34.90%) Domain-Driven Design
8 51 (34.23%) Test Automation
9 49 (32.89%) OOA/OOD
10 42 (28.19%) Scrum
11 17 (11.41%) Unit Testing
12 13 (8.72%) Pair Programming
13 11 (7.38%) Continuous Integration
14 10 (6.71%) Code Coverage
14 10 (6.71%) SOA
14 10 (6.71%) UML
14 10 (6.71%) Use Case
14 10 (6.71%) Waterfall
Programming Languages
1 142 (95.30%) Java
2 49 (32.89%) JPQL
3 25 (16.78%) SQL
4 14 (9.40%) JavaScript
5 11 (7.38%) Python
5 11 (7.38%) Scala
6 10 (6.71%) C#
6 10 (6.71%) PL/SQL
6 10 (6.71%) T-SQL
6 10 (6.71%) XPath
7 4 (2.68%) Groovy
8 1 (0.67%) C
Qualifications
1 82 (55.03%) Security Cleared
2 64 (42.95%) SC Cleared
3 6 (4.03%) BPSS Clearance
3 6 (4.03%) DBS Check
4 1 (0.67%) CTC Cleared
4 1 (0.67%) DV Cleared
Quality Assurance & Compliance
1 9 (6.04%) QA
2 1 (0.67%) Data Quality
System Software
1 63 (42.28%) HDFS
2 52 (34.90%) Apache ZooKeeper
3 42 (28.19%) Docker
Systems Management
1 42 (28.19%) Kubernetes
2 41 (27.52%) Ansible
3 39 (26.17%) Terraform
4 6 (4.03%) Puppet
5 4 (2.68%) Ambari
6 2 (1.34%) Cobbler
6 2 (1.34%) Opscode Chef
Vendors
1 15 (10.07%) Hortonworks
1 15 (10.07%) Oracle
2 10 (6.71%) Solace
2 10 (6.71%) Sybase
3 5 (3.36%) SAP
4 4 (2.68%) Google
5 3 (2.01%) Red Hat
6 1 (0.67%) Cloudera