Period
to 21 November 2017

The following table provides summary statistics for contract job vacancies advertised in England with a requirement for CQRS skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited CQRS over the 6 months to 21 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.

Command-Query Responsibility Segregation (also Command-Query Separation)
UK > England
6 months to
21 Nov 2017
Same period 2016 Same period 2015
Rank 564 722 822
Rank change year-on-year +158 +100 -28
Contract jobs citing CQRS 301 149 43
As % of all contract IT jobs advertised in England 0.32% 0.15% 0.041%
As % of the Processes & Methodologies category 0.37% 0.18% 0.051%
Number of daily rates quoted 240 128 27
England median daily rate £525 £475 £500
Median daily rate % change year-on-year +10.53% -5.00% -
10th Percentile £406 £350 £325
90th Percentile £626 £588 £625
UK median daily rate £525 £475 £500
% change year-on-year +10.53% -5.00% -
Number of hourly rates quoted 0 0 0
England median hourly rate - - -
UK median hourly rate - - -

CQRS is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in England with a requirement for process or methodology skills.

All Process and Methodology Skills
England
Contract vacancies with a requirement for process or methodology skills 80294 81883 85035
As % of all contract IT jobs advertised in England 84.66% 84.16% 81.94%
Number of daily rates quoted 54019 54581 56048
England median daily rate £450 £425 £423
Median daily rate % change year-on-year +5.88% +0.47% +5.75%
10th Percentile £288 £265 £263
90th Percentile £638 £613 £600
UK median daily rate £450 £425 £413
% change year-on-year +5.88% +3.03% +3.13%
Number of hourly rates quoted 1877 2118 2511
England median hourly rate £23.75 £24.42 £22.50
Median hourly rate % change year-on-year -2.74% +8.53% +18.42%
10th Percentile £11.39 £11.50 £11.50
90th Percentile £50.00 £48.75 £47.50
UK median hourly rate £23.50 £24.00 £22.50
% change year-on-year -2.08% +6.67% +18.42%

CQRS
Job Vacancy Trend in England

Job postings citing CQRS as a percentage of all IT jobs advertised in England.

Job vacancy trend for CQRS in England

CQRS
Contractor Daily Rate Trend in England

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

Contractor daily rate trend for CQRS in England

CQRS
Contractor Daily Rate Histogram in England

The daily rate distribution of IT jobs citing CQRS in England over the 6 months to 21 November 2017.

Contractor daily rate histogram for CQRS in England

CQRS
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 CQRS within the England region over the 6 months to 21 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
London +158 270 £525 +10.53% 23
North of England +64 12 £463 -2.63% 3
South West -11 10 £500 +9.59%
North West - 9 £463 - 2
Midlands +8 3 £425 +17.24%
South East -33 3 £338 -28.95% 5
North East - 3 - -
West Midlands +9 2 £425 +17.24%
East of England - 1 £550 -
East Midlands - 1 £600 -
CQRS
UK

For the 6 months to 21 November 2017, IT contractor jobs citing CQRS 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 CQRS.

1 240 (79.73%) Agile Software Development
2 178 (59.14%) Microservices
3 169 (56.15%) Domain-Driven Design
4 156 (51.83%) Java
5 147 (48.84%) .NET
6 144 (47.84%) AngularJS
7 135 (44.85%) C#
8 132 (43.85%) BDD
9 129 (42.86%) TDD
10 124 (41.20%) Scrum
11 121 (40.20%) RESTful
12 117 (38.87%) JavaScript
13 105 (34.88%) Git (software)
14 103 (34.22%) MVC
15 96 (31.89%) NoSQL
16 93 (30.90%) React
17 87 (28.90%) ASP.NET
18 86 (28.57%) ASP.NET Web API
19 84 (27.91%) JMS
20 83 (27.57%) DevOps
21 81 (26.91%) Test Automation
22 79 (26.25%) REST
23 77 (25.58%) OO
24 76 (25.25%) JUnit
24 76 (25.25%) Mockito
24 76 (25.25%) Amazon AWS
24 76 (25.25%) Continuous Integration
25 72 (23.92%) WireMock
26 71 (23.59%) JAX-RS
27 70 (23.26%) Microsoft Azure

CQRS
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 59 (19.60%) Confluence
2 52 (17.28%) WildFly
3 47 (15.61%) NServiceBus
4 39 (12.96%) Elasticsearch
5 9 (2.99%) Tomcat
6 8 (2.66%) IIS
7 4 (1.33%) OpenStack
8 3 (1.00%) Mule
9 2 (0.66%) Alfresco
9 2 (0.66%) Apache
9 2 (0.66%) Apache Solr
9 2 (0.66%) Apache Spark
9 2 (0.66%) CMS
9 2 (0.66%) JBoss
9 2 (0.66%) Sitecore CMS
10 1 (0.33%) Apache ServiceMix
10 1 (0.33%) WebSphere
Business Applications
1 8 (2.66%) Dynamics CRM
Cloud Services
1 76 (25.25%) Amazon AWS
2 70 (23.26%) Microsoft Azure
3 36 (11.96%) GitHub
4 12 (3.99%) Amazon EC2
5 10 (3.32%) Google Play
6 4 (1.33%) Heroku
7 3 (1.00%) PaaS
8 2 (0.66%) IaaS
8 2 (0.66%) SaaS
9 1 (0.33%) Amazon Kinesis
9 1 (0.33%) Amazon SQS
9 1 (0.33%) Azure Machine Learning
9 1 (0.33%) Cloud Computing
9 1 (0.33%) npm
9 1 (0.33%) Serverless
Communications & Networking
1 6 (1.99%) DNS
2 5 (1.66%) HTTP
3 4 (1.33%) FTP
3 4 (1.33%) SSL
3 4 (1.33%) TCP/IP
4 2 (0.66%) AMQP
4 2 (0.66%) Internet
Database & Business Intelligence
1 96 (31.89%) NoSQL
2 65 (21.59%) MongoDB
3 60 (19.93%) Relational Database
4 53 (17.61%) RDBMS
5 46 (15.28%) PostgreSQL
6 31 (10.30%) SQL Server
7 22 (7.31%) Amazon DynamoDB
8 17 (5.65%) Hadoop
9 16 (5.32%) RavenDB
10 14 (4.65%) Apache Cassandra
10 14 (4.65%) MySQL
11 11 (3.65%) Redis
12 10 (3.32%) Neo4j
13 3 (1.00%) SQL Server 2012
14 2 (0.66%) DocumentDB
14 2 (0.66%) HBase
15 1 (0.33%) Apache Hive
15 1 (0.33%) Oracle Database
Development Applications
1 105 (34.88%) Git (software)
2 76 (25.25%) JUnit
2 76 (25.25%) Mockito
3 62 (20.60%) Maven
4 59 (19.60%) JIRA
4 59 (19.60%) TeamCity
5 56 (18.60%) SonarQube
6 55 (18.27%) Vagrant
7 51 (16.94%) Checkstyle
7 51 (16.94%) Liquibase
7 51 (16.94%) Octopus Deploy
8 32 (10.63%) SpecFlow
9 27 (8.97%) Jenkins
10 25 (8.31%) Subversion
11 17 (5.65%) Protractor
12 13 (4.32%) Hudson
13 12 (3.99%) Atlassian Bamboo
13 12 (3.99%) MSBuild
14 11 (3.65%) Cucumber
15 10 (3.32%) Gradle
General
1 64 (21.26%) Finance
2 36 (11.96%) Banking
3 23 (7.64%) Retail
4 7 (2.33%) Publishing
5 2 (0.66%) Electronics
5 2 (0.66%) Manufacturing
5 2 (0.66%) Marketing
5 2 (0.66%) Telecoms
6 1 (0.33%) Advertising
6 1 (0.33%) Front Office
6 1 (0.33%) Local Government
Job Titles
1 256 (85.05%) Developer
2 106 (35.22%) Java Developer
3 89 (29.57%) C# Developer
4 83 (27.57%) .NET Developer
5 63 (20.93%) Senior Developer
6 60 (19.93%) Full Stack Developer
7 45 (14.95%) C# .NET Developer
8 40 (13.29%) Senior C# Developer
9 36 (11.96%) Senior .NET Developer
10 35 (11.63%) Angular Developer
11 29 (9.63%) SC Cleared Java Developer
12 25 (8.31%) Lead Developer
13 23 (7.64%) AWS Developer
13 23 (7.64%) Senior C# .NET Developer
14 22 (7.31%) ASP.NET Developer
14 22 (7.31%) C# ASP.NET Developer
15 20 (6.64%) Azure Developer
16 17 (5.65%) E-Commerce Developer
17 16 (5.32%) JavaScript Developer
17 16 (5.32%) Senior C# ASP.NET Developer
Libraries, Frameworks & Software Standards
1 147 (48.84%) .NET
2 144 (47.84%) AngularJS
3 121 (40.20%) RESTful
4 93 (30.90%) React
5 87 (28.90%) ASP.NET
6 86 (28.57%) ASP.NET Web API
7 84 (27.91%) JMS
8 79 (26.25%) REST
9 72 (23.92%) WireMock
10 71 (23.59%) JAX-RS
11 63 (20.93%) Node.js
12 60 (19.93%) Java EE
13 55 (18.27%) Hibernate
14 54 (17.94%) Drools
15 51 (16.94%) Lambda Expressions
16 49 (16.28%) Redux
17 48 (15.95%) RabbitMQ
18 46 (15.28%) ASP.NET MVC
19 40 (13.29%) Kafka
20 37 (12.29%) Spring
Miscellaneous
1 56 (18.60%) Greenfield Project
2 51 (16.94%) Linux Command Line
3 36 (11.96%) Fintech
4 34 (11.30%) Public Cloud
5 30 (9.97%) Blog
6 25 (8.31%) Hedge funds
7 15 (4.98%) Foreign Exchange (FX)
8 14 (4.65%) Analytical Skills
9 12 (3.99%) Online Banking
9 12 (3.99%) User Experience
10 10 (3.32%) Mobile App
11 7 (2.33%) Computer Science
12 3 (1.00%) Enterprise Software
Operating Systems
1 54 (17.94%) VMS
2 51 (16.94%) Unix
3 20 (6.64%) Linux
4 10 (3.32%) Android
4 10 (3.32%) Apple iOS
5 6 (1.99%) Windows
6 4 (1.33%) CoreOS
7 1 (0.33%) Mesosphere
Processes & Methodologies
1 240 (79.73%) Agile Software Development
2 178 (59.14%) Microservices
3 169 (56.15%) Domain-Driven Design
4 132 (43.85%) BDD
5 129 (42.86%) TDD
6 124 (41.20%) Scrum
7 103 (34.22%) MVC
8 83 (27.57%) DevOps
9 81 (26.91%) Test Automation
10 77 (25.58%) OO
11 76 (25.25%) Continuous Integration
12 56 (18.60%) Software Engineering
13 54 (17.94%) Dependency Injection
13 54 (17.94%) SOLID
14 51 (16.94%) OOA/OOD
15 46 (15.28%) E-Commerce
16 34 (11.30%) High Availability
17 33 (10.96%) Open Source
18 32 (10.63%) Pair Programming
19 31 (10.30%) Continuous Improvement
Programming Languages
1 156 (51.83%) Java
2 135 (44.85%) C#
3 117 (38.87%) JavaScript
4 51 (16.94%) JPQL
5 44 (14.62%) SQL
6 20 (6.64%) PowerShell
7 18 (5.98%) GraphQL
8 15 (4.98%) TypeScript
9 12 (3.99%) Scala
10 11 (3.65%) ES6
11 10 (3.32%) Objective-C
11 10 (3.32%) Ruby
12 9 (2.99%) PL/SQL
13 5 (1.66%) Groovy
14 3 (1.00%) C
14 3 (1.00%) T-SQL
15 2 (0.66%) Bash Shell
15 2 (0.66%) Python
15 2 (0.66%) VBScript
Qualifications
1 46 (15.28%) Security Cleared
2 32 (10.63%) SC Cleared
3 10 (3.32%) BPSS Clearance
4 8 (2.66%) Degree
5 7 (2.33%) Computer Science Degree
6 1 (0.33%) BC Cleared
Quality Assurance & Compliance
1 7 (2.33%) QA
2 1 (0.33%) Disclosure Scotland
System Software
1 17 (5.65%) Docker
2 1 (0.33%) Apache Flume
Systems Management
1 28 (9.30%) Ansible
2 22 (7.31%) Opscode Chef
3 17 (5.65%) Puppet
4 12 (3.99%) ZABBIX
5 8 (2.66%) Nagios
6 6 (1.99%) Kibana
6 6 (1.99%) Terraform
7 5 (1.66%) Kubernetes
8 4 (1.33%) Docker Swarm
Vendors
1 33 (10.96%) Microsoft
2 10 (3.32%) Apple
2 10 (3.32%) Google
3 9 (2.99%) Oracle
4 8 (2.66%) AppDynamics
4 8 (2.66%) New Relic
4 8 (2.66%) Salesforce.com
4 8 (2.66%) Splunk
5 6 (1.99%) Apigee
6 5 (1.66%) Red Hat
7 2 (0.66%) Atlassian
7 2 (0.66%) SAP
7 2 (0.66%) Sitecore
8 1 (0.33%) Cadence
8 1 (0.33%) Capita
8 1 (0.33%) IBM