Period
to 21 March 2019

The following table provides summary statistics for contract job vacancies advertised in Croydon 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 21 March 2019 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
South London > Croydon
6 months to
21 Mar 2019
Same period 2018 Same period 2017
Rank 92 51 -
Rank change year-on-year -41 - +47
Contract jobs citing Drools 8 58 0
As % of all contract IT jobs advertised in Croydon 0.91% 5.22% -
As % of the Libraries, Frameworks & Software Standards category 2.33% 14.43% -
Number of daily rates quoted 6 54 0
Croydon median daily rate £650 £550 -
Median daily rate % change year-on-year +18.18% - -
South London median daily rate £650 £550 -
% change year-on-year +18.18% - -
Number of hourly rates quoted 0 0 0
Croydon median hourly rate - - -
South London median hourly rate - £35.00 -

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

All Software Libraries and Frameworks
Croydon
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 344 402 136
As % of all contract IT jobs advertised in Croydon 39.05% 36.18% 31.34%
Number of daily rates quoted 244 302 76
Croydon median daily rate £525 £500 £459
Median daily rate % change year-on-year +5.00% +8.99% +7.94%
10th Percentile £402 £383 £260
90th Percentile £650 £638 £550
South London median daily rate £500 £500 £450
% change year-on-year - +11.11% +12.50%
Number of hourly rates quoted 1 0 0
Croydon median hourly rate £35.00 - -
South London median hourly rate £44.18 £47.83 £47.83
% change year-on-year -7.63% - -

Drools
Job Vacancy Trend in Croydon

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

Job vacancy trend for Drools in Croydon

Drools
Contractor Daily Rate Trend in Croydon

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

Contractor daily rate trend for Drools in Croydon

For the 6 months to 21 March 2019, IT contractor jobs citing Drools also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the Croydon region with a requirement for Drools.

1 7 (87.50%) Kerberos
1 7 (87.50%) PostgreSQL
1 7 (87.50%) SC Cleared
1 7 (87.50%) Security Cleared
1 7 (87.50%) Apache Solr
1 7 (87.50%) Agile Software Development
1 7 (87.50%) HBase
1 7 (87.50%) Big Data
1 7 (87.50%) Kafka
1 7 (87.50%) Apache Camel
1 7 (87.50%) Ansible
1 7 (87.50%) Docker
1 7 (87.50%) Kubernetes
1 7 (87.50%) Terraform
2 6 (75.00%) HDFS
2 6 (75.00%) Hadoop
3 3 (37.50%) Java 8
3 3 (37.50%) Confluence
3 3 (37.50%) JIRA
3 3 (37.50%) Java
4 2 (25.00%) IntelliJ
4 2 (25.00%) Linux
4 2 (25.00%) TDD
4 2 (25.00%) Spring
4 2 (25.00%) Maven
4 2 (25.00%) Data Architecture
4 2 (25.00%) REST
4 2 (25.00%) BDD
4 2 (25.00%) Spring Boot
4 2 (25.00%) Mentoring

Drools
Co-occurring IT Skills in Croydon 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 (87.50%) Apache Solr
2 3 (37.50%) Confluence
3 2 (25.00%) Apache Spark
4 1 (12.50%) Apache
4 1 (12.50%) Elasticsearch
4 1 (12.50%) WildFly
Communications & Networking
1 7 (87.50%) Kerberos
Database & Business Intelligence
1 7 (87.50%) Big Data
1 7 (87.50%) HBase
1 7 (87.50%) PostgreSQL
2 6 (75.00%) Hadoop
3 1 (12.50%) MongoDB
3 1 (12.50%) RDBMS
3 1 (12.50%) Relational Database
Development Applications
1 3 (37.50%) JIRA
2 2 (25.00%) IntelliJ
2 2 (25.00%) Maven
3 1 (12.50%) Checkstyle
3 1 (12.50%) Cucumber
3 1 (12.50%) Git (software)
3 1 (12.50%) JUnit
3 1 (12.50%) Liquibase
3 1 (12.50%) Mockito
3 1 (12.50%) SonarQube
3 1 (12.50%) Vagrant
Job Titles
1 8 (100.00%) Developer
2 5 (62.50%) Agile Developer
2 5 (62.50%) AWS Developer
2 5 (62.50%) AWS Engineer
2 5 (62.50%) Big Data Developer
2 5 (62.50%) Big Data Engineer
2 5 (62.50%) Data Engineer
2 5 (62.50%) Hadoop Developer
2 5 (62.50%) Hadoop Engineer
2 5 (62.50%) Platform Engineer
3 3 (37.50%) Java Developer
4 1 (12.50%) Backend Developer
4 1 (12.50%) Lead Developer
4 1 (12.50%) Lead Java Developer
Libraries, Frameworks & Software Standards
1 7 (87.50%) Apache Camel
1 7 (87.50%) Kafka
2 2 (25.00%) REST
2 2 (25.00%) Spring
2 2 (25.00%) Spring Boot
3 1 (12.50%) Hibernate
3 1 (12.50%) Java EE
3 1 (12.50%) JAX-RS
3 1 (12.50%) JMS
3 1 (12.50%) JSON
3 1 (12.50%) JSON Schema
3 1 (12.50%) Lambda Expressions
3 1 (12.50%) RESTful
3 1 (12.50%) Spring MVC
3 1 (12.50%) WireMock
Miscellaneous
1 1 (12.50%) Algorithms
1 1 (12.50%) Linux Command Line
1 1 (12.50%) PKI
Operating Systems
1 2 (25.00%) Linux
2 1 (12.50%) Unix
2 1 (12.50%) VMS
Processes & Methodologies
1 7 (87.50%) Agile Software Development
2 2 (25.00%) BDD
2 2 (25.00%) Coaching
2 2 (25.00%) Data Architecture
2 2 (25.00%) Mentoring
2 2 (25.00%) Microservices
2 2 (25.00%) TDD
3 1 (12.50%) Continuous Integration
3 1 (12.50%) CQRS
3 1 (12.50%) Data Development
3 1 (12.50%) Dependency Injection
3 1 (12.50%) Domain-Driven Design
3 1 (12.50%) MVC
3 1 (12.50%) OO
3 1 (12.50%) OOA/OOD
3 1 (12.50%) Problem-Solving
3 1 (12.50%) Software Engineering
3 1 (12.50%) Systems Engineering
3 1 (12.50%) Test Automation
3 1 (12.50%) Trunk-Based Development
Programming Languages
1 3 (37.50%) Java
1 3 (37.50%) Java 8
2 1 (12.50%) JPQL
Qualifications
1 7 (87.50%) SC Cleared
1 7 (87.50%) Security Cleared
2 1 (12.50%) BPSS Clearance
2 1 (12.50%) DBS Check
System Software
1 7 (87.50%) Docker
2 6 (75.00%) HDFS
Systems Management
1 7 (87.50%) Ansible
1 7 (87.50%) Kubernetes
1 7 (87.50%) Terraform