Period
to 24 September 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 24 September 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
24 Sep 2018
Same period 2017 Same period 2016
Rank 597 603 729
Rank change year-on-year +6 +126 +131
Contract jobs citing CQRS 265 234 138
As % of all contract IT jobs advertised in England 0.28% 0.26% 0.14%
As % of the Processes & Methodologies category 0.33% 0.30% 0.16%
Number of daily rates quoted 205 179 116
England median daily rate £500 £500 £475
Median daily rate % change year-on-year - +5.26% -20.83%
10th Percentile £400 £406 £350
90th Percentile £633 £600 £582
UK median daily rate £500 £500 £475
% change year-on-year - +5.26% -20.83%
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 80,340 76,807 84,212
As % of all contract IT jobs advertised in England 86.22% 85.80% 85.28%
Number of daily rates quoted 53,637 51,096 56,247
England median daily rate £468 £450 £425
Median daily rate % change year-on-year +3.89% +5.88% +3.03%
10th Percentile £300 £281 £263
90th Percentile £638 £625 £606
UK median daily rate £450 £450 £425
% change year-on-year - +5.88% +5.59%
Number of hourly rates quoted 2,184 1,866 2,140
England median hourly rate £21.00 £23.14 £22.84
Median hourly rate % change year-on-year -9.25% +1.34% +4.99%
10th Percentile £11.18 £11.25 £11.50
90th Percentile £50.60 £50.00 £47.83
UK median hourly rate £20.55 £24.00 £22.50
% change year-on-year -14.38% +6.67% +2.69%

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 24 September 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 24 September 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 -29 196 £550 +4.76% 21
North of England -10 26 £400 -7.25% 9
Yorkshire - 21 £400 - 1
Midlands -3 16 £475 +11.76% 1
East of England - 15 £456 - 8
South East -7 8 £538 +13.16% 6
West Midlands -16 8 £500 +17.65% 1
East Midlands - 8 £400 -
North West -19 5 £363 -15.94% 6
South West -11 4 £536 +7.25%
CQRS
UK

For the 6 months to 24 September 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.

1 201 (75.85%) Agile Software Development
2 181 (68.30%) Domain-Driven Design
3 164 (61.89%) Microservices
4 138 (52.08%) TDD
5 129 (48.68%) .NET
6 112 (42.26%) C#
7 108 (40.75%) JavaScript
8 106 (40.00%) AngularJS
9 95 (35.85%) OO
10 92 (34.72%) MVC
11 91 (34.34%) Git (software)
12 89 (33.58%) Java
13 88 (33.21%) RESTful
14 87 (32.83%) Microsoft Azure
15 80 (30.19%) JMS
16 79 (29.81%) ASP.NET Web API
17 78 (29.43%) BDD
17 78 (29.43%) Scrum
18 76 (28.68%) ASP.NET
19 74 (27.92%) Java 8
20 70 (26.42%) Test Automation
20 70 (26.42%) REST
21 68 (25.66%) JIRA
22 67 (25.28%) Confluence
23 63 (23.77%) Vagrant
23 63 (23.77%) VMS
23 63 (23.77%) React
24 60 (22.64%) WildFly
24 60 (22.64%) JAX-RS
25 57 (21.51%) Software Engineering

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 67 (25.28%) Confluence
2 60 (22.64%) WildFly
3 21 (7.92%) NServiceBus
4 13 (4.91%) Tomcat
5 10 (3.77%) Elasticsearch
6 5 (1.89%) JBoss
Business Applications
1 6 (2.26%) Dynamics CRM
2 1 (0.38%) Dynamics AX
2 1 (0.38%) Dynamics NAV
Cloud Services
1 87 (32.83%) Microsoft Azure
2 55 (20.75%) Amazon AWS
3 33 (12.45%) GitHub
4 20 (7.55%) npm
5 15 (5.66%) Amazon EC2
6 5 (1.89%) Serverless
7 4 (1.51%) AWS CloudFormation
7 4 (1.51%) Azure Functions
8 2 (0.75%) Amazon ElastiCache
9 1 (0.38%) Amazon CloudWatch
9 1 (0.38%) Amazon SQS
9 1 (0.38%) Google Cloud Platform
9 1 (0.38%) IaaS
9 1 (0.38%) PaaS
Communications & Networking
1 1 (0.38%) Internet
Database & Business Intelligence
1 54 (20.38%) Relational Database
2 53 (20.00%) RDBMS
3 35 (13.21%) NoSQL
3 35 (13.21%) SQL Server
4 34 (12.83%) PostgreSQL
5 24 (9.06%) MongoDB
6 17 (6.42%) Azure SQL Database
7 15 (5.66%) Amazon RDS
7 15 (5.66%) MySQL
7 15 (5.66%) SQL Server 2008
7 15 (5.66%) SQL Server 2012
8 10 (3.77%) RavenDB
9 7 (2.64%) Apache Cassandra
10 5 (1.89%) Cosmos DB
11 4 (1.51%) Amazon DynamoDB
11 4 (1.51%) SQL Server Integration Services
11 4 (1.51%) SQL Server Reporting Services
12 2 (0.75%) Big Data
13 1 (0.38%) Apache Hive
13 1 (0.38%) Hazelcast
Development Applications
1 91 (34.34%) Git (software)
2 68 (25.66%) JIRA
3 63 (23.77%) Vagrant
4 55 (20.75%) JUnit
4 55 (20.75%) Mockito
5 53 (20.00%) Maven
6 52 (19.62%) Checkstyle
6 52 (19.62%) Liquibase
6 52 (19.62%) SonarQube
7 43 (16.23%) Octopus Deploy
8 34 (12.83%) TeamCity
9 20 (7.55%) webpack
10 17 (6.42%) Selenium
11 14 (5.28%) PHPUnit
12 10 (3.77%) gulp
13 8 (3.02%) Jenkins
14 5 (1.89%) Bitbucket
14 5 (1.89%) Grunt
14 5 (1.89%) Jasmine
14 5 (1.89%) Visual Studio
General
1 33 (12.45%) Finance
2 23 (8.68%) Banking
3 6 (2.26%) Corporate Banking
4 4 (1.51%) Retail
5 3 (1.13%) Advertising
5 3 (1.13%) Manufacturing
6 2 (0.75%) Marketing
6 2 (0.75%) Telecoms
7 1 (0.38%) Electronics
7 1 (0.38%) Financial Institution
7 1 (0.38%) Front Office
7 1 (0.38%) Law
7 1 (0.38%) Legal
Job Titles
1 235 (88.68%) Developer
2 105 (39.62%) .NET Developer
3 71 (26.79%) Java Developer
4 61 (23.02%) C# Developer
5 51 (19.25%) C# .NET Developer
6 48 (18.11%) SC Cleared Java Developer
7 37 (13.96%) Senior Developer
8 33 (12.45%) Senior .NET Developer
9 28 (10.57%) Angular Developer
10 23 (8.68%) ASP.NET Developer
11 22 (8.30%) C# ASP.NET Developer
11 22 (8.30%) Node.js Developer
12 21 (7.92%) Azure Developer
12 21 (7.92%) JavaScript Developer
13 15 (5.66%) PHP Developer
13 15 (5.66%) Senior C# Developer
14 14 (5.28%) Full Stack Developer
14 14 (5.28%) Senior C# .NET Developer
15 12 (4.53%) Principal .NET Developer
15 12 (4.53%) React Developer
Libraries, Frameworks & Software Standards
1 129 (48.68%) .NET
2 106 (40.00%) AngularJS
3 88 (33.21%) RESTful
4 80 (30.19%) JMS
5 79 (29.81%) ASP.NET Web API
6 76 (28.68%) ASP.NET
7 70 (26.42%) REST
8 63 (23.77%) React
9 60 (22.64%) JAX-RS
10 56 (21.13%) HTML
11 55 (20.75%) Hibernate
11 55 (20.75%) WireMock
12 52 (19.62%) Drools
12 52 (19.62%) Java EE
12 52 (19.62%) Lambda Expressions
13 51 (19.25%) .NET Core
14 50 (18.87%) CSS
15 40 (15.09%) ASP.NET MVC
16 37 (13.96%) Vue.js
17 32 (12.08%) HTML5
Miscellaneous
1 52 (19.62%) Linux Command Line
2 26 (9.81%) Greenfield Project
3 17 (6.42%) Blog
4 16 (6.04%) Online Banking
5 15 (5.66%) Fintech
5 15 (5.66%) Foreign Exchange (FX)
6 12 (4.53%) User Experience
7 11 (4.15%) Public Cloud
8 4 (1.51%) Cloud Native
9 3 (1.13%) Computer Science
10 1 (0.38%) Enterprise Software
10 1 (0.38%) Marketing Technology
10 1 (0.38%) Self-Motivation
Operating Systems
1 63 (23.77%) VMS
2 53 (20.00%) Unix
3 6 (2.26%) Windows
4 5 (1.89%) Linux
Processes & Methodologies
1 201 (75.85%) Agile Software Development
2 181 (68.30%) Domain-Driven Design
3 164 (61.89%) Microservices
4 138 (52.08%) TDD
5 95 (35.85%) OO
6 92 (34.72%) MVC
7 78 (29.43%) BDD
7 78 (29.43%) Scrum
8 70 (26.42%) Test Automation
9 57 (21.51%) Software Engineering
10 56 (21.13%) Dependency Injection
11 55 (20.75%) Continuous Integration
12 52 (19.62%) OOA/OOD
13 41 (15.47%) DevOps
14 38 (14.34%) Pair Programming
14 38 (14.34%) SOLID
15 31 (11.70%) Open Source
16 27 (10.19%) Web Development
17 20 (7.55%) Don't repeat yourself (DRY)
18 18 (6.79%) MVVM
Programming Languages
1 112 (42.26%) C#
2 108 (40.75%) JavaScript
3 89 (33.58%) Java
4 74 (27.92%) Java 8
5 52 (19.62%) JPQL
6 47 (17.74%) SQL
7 42 (15.85%) TypeScript
8 15 (5.66%) PHP
8 15 (5.66%) PHP 7
9 8 (3.02%) PowerShell
10 5 (1.89%) ES6
11 4 (1.51%) T-SQL
11 4 (1.51%) VBScript
12 1 (0.38%) Shell Script
12 1 (0.38%) VB.NET
Qualifications
1 54 (20.38%) Security Cleared
2 52 (19.62%) SC Cleared
3 4 (1.51%) BPSS Clearance
4 3 (1.13%) BC Cleared
4 3 (1.13%) Computer Science Degree
4 3 (1.13%) Degree
Quality Assurance & Compliance
1 10 (3.77%) QA
2 3 (1.13%) Disclosure Scotland
3 2 (0.75%) PCI DSS
4 1 (0.38%) GDPR
4 1 (0.38%) WCAG
System Software
1 16 (6.04%) Docker
Systems Management
1 3 (1.13%) Kibana
2 2 (0.75%) Kubernetes
Vendors
1 42 (15.85%) Microsoft
2 15 (5.66%) Zend
3 5 (1.89%) Salesforce.com
4 4 (1.51%) Google
5 1 (0.38%) Oracle
5 1 (0.38%) SAP