The following table provides summary statistics for contract job vacancies advertised in London with a requirement for CQRS skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited CQRS over the 3 months to 29 June 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)
England / London
3 months to
29 Jun 2017
Same period 2016 Same period 2015
Rank 346 400 432
Rank change year-on-year +54 +32  
Contract jobs citing CQRS 81 32 4
As % of all contract IT jobs advertised in London 0.39% 0.15% 0.017%
As % of the Processes & Methodologies category 0.45% 0.17% 0.021%
Number of daily rates quoted 59 17 4
Median daily rate £500 £475 £525
Median daily rate % change year-on-year +5.26% -9.52%  
90% offered a daily rate of more than £360 £419 £381
10% offered a daily rate of more than £650 £550 £625
UK excluding London median daily rate £500 £494 -
% change year-on-year +1.26% -  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

CQRS is in the process and methodology skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in London with a requirement for process and methodology skills.

Contract Process & Methodology Skills
London
Contract job vacancies with a requirement for process and methodology skills 18036 18488 19232
As % of all contract IT job vacancies advertised in London 86.76% 85.45% 82.13%
Number of daily rates quoted 50342 52165 48000
Median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.55%  
90% offered a daily rate of more than £333 £313 £300
10% offered a daily rate of more than £650 £650 £638
UK excluding London median daily rate £415 £400 £380
% change year-on-year +3.75% +5.26%  
Number of hourly rates quoted 501 397 607
Median hourly rate £26.50 £21.00 £21.69
Median hourly rate % change year-on-year +26.19% -3.18%  
90% offered a hourly rate of more than £14.00 £11.25 £10.50
10% offered a hourly rate of more than £53.75 £46.88 £58.75
UK excluding London median hourly rate £33.50 £28.00 £30.00
% change year-on-year +19.64% -6.66%  

CQRS
Job Vacancy Trend in London

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

Job vacancy trend for CQRS in London

CQRS
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for CQRS in London

CQRS
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing CQRS in London over the 3 months to 29 June 2017.

Contractor daily rate histogram for CQRS in London

CQRS
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 CQRS within the London region over the 3 months to 29 June 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
City of London - 9 £530 -
Croydon -8 7 £388 -12.67%
CQRS
England

For the 6 months to 29 June 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 London region with a requirement for CQRS.

1 110 (78.57%) Agile Software Development
2 80 (57.14%) .NET
3 72 (51.43%) AngularJS
4 71 (50.71%) TDD
5 69 (49.29%) C#
6 66 (47.14%) Domain-Driven Design
7 65 (46.43%) ASP.NET Web API
8 62 (44.29%) Microservices
9 59 (42.14%) ASP.NET
10 52 (37.14%) Java
10 52 (37.14%) Scrum
11 51 (36.43%) JavaScript
12 49 (35.00%) BDD
12 49 (35.00%) NoSQL
13 43 (30.71%) MVC
14 42 (30.00%) TeamCity
15 41 (29.29%) Finance
16 39 (27.86%) Kafka
16 39 (27.86%) Octopus Deploy
17 38 (27.14%) Software Engineering
17 38 (27.14%) Greenfield Project
18 37 (26.43%) Spring
19 36 (25.71%) Akka
20 35 (25.00%) DevOps
21 34 (24.29%) RabbitMQ
21 34 (24.29%) Microsoft Azure
22 33 (23.57%) Scala
23 32 (22.86%) E-Commerce
24 29 (20.71%) RESTful
25 28 (20.00%) Amazon AWS

CQRS
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 23 (16.43%) NServiceBus
2 22 (15.71%) Elasticsearch
3 21 (15.00%) Apache Spark
4 4 (2.86%) Mule
5 2 (1.43%) Alfresco
5 2 (1.43%) Apache
5 2 (1.43%) Confluence
5 2 (1.43%) JBoss
5 2 (1.43%) Tomcat
6 1 (0.71%) OpenStack
Business Applications
1 1 (0.71%) SAP Oil and Gas
Cloud Services
1 34 (24.29%) Microsoft Azure
2 28 (20.00%) Amazon AWS
3 19 (13.57%) GitHub
4 15 (10.71%) Amazon EC2
5 3 (2.14%) Heroku
6 2 (1.43%) Cloud Computing
7 1 (0.71%) PaaS
Communications & Networking
1 23 (16.43%) HTTP
2 12 (8.57%) Internet
3 7 (5.00%) TCP/IP
4 3 (2.14%) DNS
4 3 (2.14%) FTP
4 3 (2.14%) SSL
Database & Business Intelligence
1 49 (35.00%) NoSQL
2 28 (20.00%) MongoDB
3 26 (18.57%) SQL Server
4 23 (16.43%) Hadoop
5 19 (13.57%) Amazon DynamoDB
6 16 (11.43%) PostgreSQL
7 7 (5.00%) Apache Hive
7 7 (5.00%) Redis
8 6 (4.29%) Apache Cassandra
9 4 (2.86%) RavenDB
10 3 (2.14%) Relational Database
11 2 (1.43%) HBase
12 1 (0.71%) Azure SQL Database
12 1 (0.71%) MySQL
Development Applications
1 42 (30.00%) TeamCity
2 39 (27.86%) Octopus Deploy
3 25 (17.86%) Git (software)
4 20 (14.29%) SpecFlow
5 15 (10.71%) Subversion
6 14 (10.00%) Atlassian Bamboo
6 14 (10.00%) Hudson
6 14 (10.00%) MSBuild
6 14 (10.00%) Team Foundation Server
7 11 (7.86%) Jenkins
8 9 (6.43%) WebDriver
9 7 (5.00%) JUnit
9 7 (5.00%) Mockito
10 6 (4.29%) Jasmine
11 5 (3.57%) webpack
12 4 (2.86%) Protractor
13 3 (2.14%) Gradle
13 3 (2.14%) Karma Test Runner
14 2 (1.43%) Grunt
14 2 (1.43%) Vagrant
General
1 41 (29.29%) Finance
2 24 (17.14%) Banking
3 2 (1.43%) Front Office
3 2 (1.43%) Private Banking
4 1 (0.71%) Electronics
4 1 (0.71%) Law
4 1 (0.71%) Legal
4 1 (0.71%) Local Government
4 1 (0.71%) Manufacturing
4 1 (0.71%) Marketing
4 1 (0.71%) Telecoms
Job Titles
1 122 (87.14%) Developer
2 45 (32.14%) C# Developer
3 41 (29.29%) .NET Developer
4 39 (27.86%) Java Developer
5 25 (17.86%) Full Stack Developer
6 24 (17.14%) C# .NET Developer
7 20 (14.29%) Azure Developer
7 20 (14.29%) Senior Developer
8 15 (10.71%) Scala Developer
8 15 (10.71%) Senior C# Developer
9 14 (10.00%) Angular Developer
9 14 (10.00%) AWS Developer
10 11 (7.86%) Java Scala Developer
11 9 (6.43%) Agile Developer
12 7 (5.00%) Architect
13 6 (4.29%) Agile .NET Developer
14 5 (3.57%) Lead Developer
14 5 (3.57%) Senior Java Developer
14 5 (3.57%) Software Engineer
14 5 (3.57%) Technical Developer
Libraries, Frameworks & Software Standards
1 80 (57.14%) .NET
2 72 (51.43%) AngularJS
3 65 (46.43%) ASP.NET Web API
4 59 (42.14%) ASP.NET
5 39 (27.86%) Kafka
6 37 (26.43%) Spring
7 36 (25.71%) Akka
8 34 (24.29%) RabbitMQ
9 29 (20.71%) RESTful
10 28 (20.00%) React
11 26 (18.57%) Hibernate
12 22 (15.71%) ASP.NET MVC
12 22 (15.71%) Play Framework
13 21 (15.00%) Redux
14 20 (14.29%) Apache Avro
14 20 (14.29%) Node.js
15 18 (12.86%) HTML
16 17 (12.14%) Angular 2
17 16 (11.43%) Ember.js
18 15 (10.71%) SignalR
Miscellaneous
1 38 (27.14%) Greenfield Project
2 21 (15.00%) Public Cloud
3 18 (12.86%) Blog
4 15 (10.71%) Fintech
5 14 (10.00%) Online Banking
6 13 (9.29%) Hedge funds
6 13 (9.29%) User Experience
7 10 (7.14%) Foreign Exchange (FX)
8 3 (2.14%) Computer Science
9 2 (1.43%) Enterprise Software
9 2 (1.43%) W3C
10 1 (0.71%) NHS
Operating Systems
1 5 (3.57%) Linux
2 3 (2.14%) CoreOS
3 1 (0.71%) Mac OS X
3 1 (0.71%) Unix
Processes & Methodologies
1 110 (78.57%) Agile Software Development
2 71 (50.71%) TDD
3 66 (47.14%) Domain-Driven Design
4 62 (44.29%) Microservices
5 52 (37.14%) Scrum
6 49 (35.00%) BDD
7 43 (30.71%) MVC
8 38 (27.14%) Software Engineering
9 35 (25.00%) DevOps
10 32 (22.86%) E-Commerce
11 28 (20.00%) SOLID
12 25 (17.86%) Continuous Integration
12 25 (17.86%) Pair Programming
13 24 (17.14%) Test Automation
14 19 (13.57%) High Availability
15 17 (12.14%) Continuous Improvement
15 17 (12.14%) Kanban
15 17 (12.14%) Open Source
16 15 (10.71%) Front End Development
16 15 (10.71%) Web Development
Programming Languages
1 69 (49.29%) C#
2 52 (37.14%) Java
3 51 (36.43%) JavaScript
4 33 (23.57%) Scala
5 24 (17.14%) SQL
6 17 (12.14%) Ruby
7 12 (8.57%) PowerShell
8 8 (5.71%) PL/SQL
8 8 (5.71%) TypeScript
9 6 (4.29%) T-SQL
10 4 (2.86%) C++
11 3 (2.14%) Groovy
12 2 (1.43%) Bash Shell
12 2 (1.43%) ES6
12 2 (1.43%) PHP
12 2 (1.43%) Python
12 2 (1.43%) VBScript
Qualifications
1 3 (2.14%) Computer Science Degree
1 3 (2.14%) Degree
2 1 (0.71%) SC Cleared
2 1 (0.71%) Security Cleared
Quality Assurance & Compliance
1 13 (9.29%) QA
System Software
1 20 (14.29%) Apache Flume
2 9 (6.43%) Docker
Systems Management
1 27 (19.29%) Opscode Chef
2 16 (11.43%) Ansible
3 15 (10.71%) Puppet
4 3 (2.14%) Docker Swarm
4 3 (2.14%) Kubernetes
4 3 (2.14%) Terraform
5 2 (1.43%) Marathon
6 1 (0.71%) Kibana
6 1 (0.71%) Mesos
Vendors
1 12 (8.57%) Microsoft
2 6 (4.29%) Oracle
3 2 (1.43%) Atlassian
4 1 (0.71%) SAP
4 1 (0.71%) Xamarin
London
Joseph Harry Ltd
Posted: 23 hours ago
North London
Experis Ltd
Rate: £300.00 - £340.00 per day
Posted: 18 hours ago