Period
to 16 December 2018

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 16 December 2018 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
16 Dec 2018
Same period 2017 Same period 2016
Rank 637 563 723
Rank change year-on-year -74 +160 +112
Contract jobs citing CQRS 230 307 146
As % of all contract IT jobs advertised in England 0.24% 0.33% 0.15%
As % of the Processes & Methodologies category 0.28% 0.38% 0.18%
Number of daily rates quoted 190 246 127
England median daily rate £525 £525 £475
Median daily rate % change year-on-year - +10.53% -5.00%
10th Percentile £400 £406 £350
90th Percentile £601 £625 £588
UK median daily rate £525 £525 £475
% 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 82,738 81,243 81,628
As % of all contract IT jobs advertised in England 86.81% 86.04% 85.54%
Number of daily rates quoted 55,504 54,744 54,212
England median daily rate £475 £450 £425
Median daily rate % change year-on-year +5.56% +5.88% -
10th Percentile £300 £283 £263
90th Percentile £650 £638 £613
UK median daily rate £465 £450 £425
% change year-on-year +3.33% +5.88% +2.41%
Number of hourly rates quoted 2,074 1,876 2,248
England median hourly rate £22.10 £25.00 £23.00
Median hourly rate % change year-on-year -11.61% +8.70% +4.55%
10th Percentile £11.25 £11.35 £11.25
90th Percentile £50.68 £50.00 £47.83
UK median hourly rate £22.43 £24.00 £22.50
% change year-on-year -6.54% +6.67% +2.27%

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 16 December 2018.

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 16 December 2018. 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 -93 156 £550 +4.76% 43
North of England -3 25 £378 -5.63% 6
Midlands -6 19 £500 +11.11% 2
West Midlands -2 18 £500 +17.65% 1
Yorkshire - 18 £400 - 1
East of England +13 16 £488 -11.36% 5
South West -23 9 £463 -2.63%
North West -13 7 £363 -9.38% 5
South East -11 6 £460 +36.30% 4
East Midlands +5 1 £400 -25.58% 1
CQRS
UK

For the 6 months to 16 December 2018, IT contractor jobs citing CQRS 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 England region with a requirement for CQRS.

1 166 (72.17%) Agile Software Development
2 158 (68.70%) Domain-Driven Design
3 154 (66.96%) Microservices
4 117 (50.87%) Java
5 108 (46.96%) OO
6 105 (45.65%) RESTful
7 98 (42.61%) TDD
7 98 (42.61%) Java 8
8 97 (42.17%) Test Automation
9 92 (40.00%) REST
10 91 (39.57%) JMS
11 88 (38.26%) Git (software)
12 84 (36.52%) .NET
12 84 (36.52%) JIRA
13 83 (36.09%) Confluence
13 83 (36.09%) JAX-RS
14 82 (35.65%) Vagrant
15 80 (34.78%) JUnit
15 80 (34.78%) VMS
16 78 (33.91%) Dependency Injection
17 74 (32.17%) Relational Database
18 73 (31.74%) Mockito
19 72 (31.30%) WildFly
19 72 (31.30%) Maven
20 71 (30.87%) Java EE
20 71 (30.87%) RDBMS
21 70 (30.43%) OOA/OOD
21 70 (30.43%) MVC
21 70 (30.43%) Hibernate
21 70 (30.43%) JPQL

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 83 (36.09%) Confluence
2 72 (31.30%) WildFly
3 18 (7.83%) Elasticsearch
4 13 (5.65%) Tomcat
5 9 (3.91%) NServiceBus
6 4 (1.74%) JBoss
7 1 (0.43%) CMS
7 1 (0.43%) DataSynapse
7 1 (0.43%) Ethereum
7 1 (0.43%) Hyperledger
7 1 (0.43%) IIS
Business Applications
1 1 (0.43%) Distributed Ledger
1 1 (0.43%) Dynamics AX
1 1 (0.43%) Dynamics CRM
1 1 (0.43%) Dynamics NAV
Cloud Services
1 58 (25.22%) Microsoft Azure
2 51 (22.17%) Amazon AWS
3 16 (6.96%) Amazon EC2
4 15 (6.52%) GitHub
5 5 (2.17%) Serverless
6 4 (1.74%) AWS CloudFormation
6 4 (1.74%) Azure Functions
7 3 (1.30%) Google Cloud Platform
8 2 (0.87%) Amazon ElastiCache
8 2 (0.87%) Amazon SQS
9 1 (0.43%) Amazon CloudWatch
9 1 (0.43%) iPaaS
9 1 (0.43%) npm
9 1 (0.43%) NuGet
9 1 (0.43%) PaaS
Communications & Networking
1 2 (0.87%) Internet
2 1 (0.43%) HTTP
Database & Business Intelligence
1 74 (32.17%) Relational Database
2 71 (30.87%) RDBMS
3 26 (11.30%) MongoDB
4 25 (10.87%) SQL Server
5 21 (9.13%) NoSQL
6 17 (7.39%) Amazon RDS
7 16 (6.96%) MySQL
8 14 (6.09%) Azure SQL Database
9 12 (5.22%) PostgreSQL
10 5 (2.17%) Amazon DynamoDB
10 5 (2.17%) SQL Server Integration Services
10 5 (2.17%) SQL Server Reporting Services
11 3 (1.30%) Big Data
12 2 (0.87%) Apache Hive
12 2 (0.87%) Hadoop
12 2 (0.87%) SQL Server 2016
13 1 (0.43%) Apache Cassandra
13 1 (0.43%) Blockchain
13 1 (0.43%) SQL Server 2008
13 1 (0.43%) SQL Server Analysis Services
Development Applications
1 88 (38.26%) Git (software)
2 84 (36.52%) JIRA
3 82 (35.65%) Vagrant
4 80 (34.78%) JUnit
5 73 (31.74%) Mockito
6 72 (31.30%) Maven
7 67 (29.13%) Checkstyle
7 67 (29.13%) Liquibase
7 67 (29.13%) SonarQube
8 29 (12.61%) TeamCity
9 20 (8.70%) Jenkins
10 19 (8.26%) Selenium
11 18 (7.83%) Octopus Deploy
12 15 (6.52%) PHPUnit
13 5 (2.17%) Visual Studio
14 4 (1.74%) Bitbucket
14 4 (1.74%) Grunt
14 4 (1.74%) gulp
15 3 (1.30%) Cucumber
15 3 (1.30%) Gerrit
General
1 22 (9.57%) Finance
2 8 (3.48%) Banking
3 6 (2.61%) Corporate Banking
4 3 (1.30%) Advertising
4 3 (1.30%) Marketing
5 2 (0.87%) Games
5 2 (0.87%) Retail
6 1 (0.43%) Financial Institution
6 1 (0.43%) Law
Job Titles
1 203 (88.26%) Developer
2 106 (46.09%) Java Developer
3 58 (25.22%) .NET Developer
4 47 (20.43%) SC Cleared Java Developer
5 43 (18.70%) C# Developer
6 34 (14.78%) C# .NET Developer
7 20 (8.70%) ASP.NET Developer
8 19 (8.26%) C# ASP.NET Developer
9 17 (7.39%) Azure Developer
10 16 (6.96%) JavaScript Developer
10 16 (6.96%) PHP Developer
11 13 (5.65%) AWS Developer
12 11 (4.78%) Lead Developer
13 10 (4.35%) Architect
13 10 (4.35%) Full Stack Developer
14 9 (3.91%) Angular Developer
15 8 (3.48%) Senior Developer
15 8 (3.48%) Software Engineer
16 7 (3.04%) Senior .NET Developer
17 6 (2.61%) SQL Developer
Libraries, Frameworks & Software Standards
1 105 (45.65%) RESTful
2 92 (40.00%) REST
3 91 (39.57%) JMS
4 84 (36.52%) .NET
5 83 (36.09%) JAX-RS
6 71 (30.87%) Java EE
7 70 (30.43%) Hibernate
7 70 (30.43%) Lambda Expressions
7 70 (30.43%) WireMock
8 67 (29.13%) Drools
9 57 (24.78%) AngularJS
10 50 (21.74%) ASP.NET
11 42 (18.26%) ASP.NET Web API
12 38 (16.52%) Spring
13 31 (13.48%) React
14 29 (12.61%) ASP.NET MVC
15 27 (11.74%) Spring Boot
16 26 (11.30%) .NET Core
17 21 (9.13%) HTML
18 17 (7.39%) Web Services
Miscellaneous
1 67 (29.13%) Linux Command Line
2 19 (8.26%) Greenfield Project
3 13 (5.65%) Blog
3 13 (5.65%) Fintech
4 6 (2.61%) User Experience
5 5 (2.17%) Cloud Native
6 4 (1.74%) Public Cloud
7 2 (0.87%) Analytical Skills
7 2 (0.87%) Marketing Technology
7 2 (0.87%) Online Banking
7 2 (0.87%) Tandem
8 1 (0.43%) Enterprise Software
8 1 (0.43%) Hedge funds
8 1 (0.43%) Self-Motivation
Operating Systems
1 80 (34.78%) VMS
2 68 (29.57%) Unix
3 3 (1.30%) Windows
4 1 (0.43%) Android
4 1 (0.43%) Apple iOS
Processes & Methodologies
1 166 (72.17%) Agile Software Development
2 158 (68.70%) Domain-Driven Design
3 154 (66.96%) Microservices
4 108 (46.96%) OO
5 98 (42.61%) TDD
6 97 (42.17%) Test Automation
7 78 (33.91%) Dependency Injection
8 70 (30.43%) MVC
8 70 (30.43%) OOA/OOD
9 56 (24.35%) BDD
10 52 (22.61%) Continuous Integration
11 42 (18.26%) Scrum
12 40 (17.39%) Software Engineering
13 30 (13.04%) SOLID
13 30 (13.04%) Unit Testing
14 29 (12.61%) DevOps
15 28 (12.17%) Continuous Delivery
16 24 (10.43%) Pair Programming
17 16 (6.96%) MVVM
17 16 (6.96%) Web Development
Programming Languages
1 117 (50.87%) Java
2 98 (42.61%) Java 8
3 70 (30.43%) JPQL
4 69 (30.00%) C#
5 64 (27.83%) JavaScript
6 48 (20.87%) SQL
7 16 (6.96%) PHP
7 16 (6.96%) PHP 7
8 12 (5.22%) Ruby
9 10 (4.35%) TypeScript
10 9 (3.91%) PowerShell
11 4 (1.74%) T-SQL
12 3 (1.30%) VBScript
13 1 (0.43%) Shell Script
13 1 (0.43%) Solidity
Qualifications
1 52 (22.61%) SC Cleared
1 52 (22.61%) Security Cleared
2 12 (5.22%) BPSS Clearance
3 3 (1.30%) BC Cleared
3 3 (1.30%) DBS Check
3 3 (1.30%) Degree
4 2 (0.87%) Computer Science Degree
5 1 (0.43%) TOGAF Certification
Quality Assurance & Compliance
1 15 (6.52%) QA
2 5 (2.17%) Disclosure Scotland
3 3 (1.30%) WCAG
4 1 (0.43%) GDPR
System Software
1 19 (8.26%) Docker
Systems Management
1 17 (7.39%) Kubernetes
2 4 (1.74%) Kibana
3 1 (0.43%) Ansible
3 1 (0.43%) Puppet
3 1 (0.43%) Single Sign-On
Vendors
1 28 (12.17%) Microsoft
2 16 (6.96%) Zend
3 7 (3.04%) Google
4 3 (1.30%) Cadence
5 2 (0.87%) Oracle
6 1 (0.43%) SAP
6 1 (0.43%) TIBCO
6 1 (0.43%) Xamarin