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 March 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 Mar 2017
Same period 2016 Same period 2015
Rank 349 426 403
Rank change year-on-year +77 -23  
Contract jobs citing CQRS 59 13 3
As % of all contract IT jobs advertised in London 0.30% 0.058% 0.014%
As % of the Processes & Methodologies category 0.35% 0.068% 0.017%
Number of daily rates quoted 39 5 3
Median daily rate £500 £450 £575
Median daily rate % change year-on-year +11.11% -21.73%  
90% offered a daily rate of more than £375 £385 £415
10% offered a daily rate of more than £526 £450 £635
UK excluding London median daily rate £525 £375 £400
% change year-on-year +40.00% -6.25%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - £7.69

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 16653 19113 17455
As % of all contract IT job vacancies advertised in London 85.13% 85.16% 82.01%
Number of daily rates quoted 11983 13825 12271
Median daily rate £485 £475 £450
Median daily rate % change year-on-year +2.10% +5.55%  
90% offered a daily rate of more than £345 £325 £310
10% offered a daily rate of more than £650 £625 £613
UK excluding London median daily rate £410 £400 £396
% change year-on-year +2.50% +1.01%  
Number of hourly rates quoted 167 195 244
Median hourly rate £31.92 £22.12 £20.00
Median hourly rate % change year-on-year +44.33% +10.57%  
90% offered a hourly rate of more than £14.19 £12.50 £11.00
10% offered a hourly rate of more than £55.00 £52.50 £55.00
UK excluding London median hourly rate £35.75 £38.50 £30.00
% change year-on-year -7.14% +28.33%  

CQRS
Job Vacancy Trend in London

The job posting trend of jobs advertised in London citing CQRS as a proportion of all contract or permanent IT jobs with a match in the Processes & Methodologies category.

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 March 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 March 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 - 2 £530 - 6
Bromley - 1 - -
CQRS
England

For the 6 months to 29 March 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 68 (69.39%) Agile Software Development
2 62 (63.27%) C#
3 58 (59.18%) TDD
4 57 (58.16%) AngularJS
5 52 (53.06%) .NET
6 49 (50.00%) JavaScript
7 46 (46.94%) ASP.NET Web API
8 45 (45.92%) Microservices
9 41 (41.84%) Domain-Driven Design
10 40 (40.82%) ASP.NET
11 37 (37.76%) SQL Server
12 36 (36.73%) BDD
13 33 (33.67%) SQL
14 32 (32.65%) Java
15 28 (28.57%) Scrum
16 27 (27.55%) MVC
17 26 (26.53%) E-Commerce
17 26 (26.53%) HTML
18 25 (25.51%) DevOps
18 25 (25.51%) NoSQL
18 25 (25.51%) Scala
18 25 (25.51%) HTML5
18 25 (25.51%) Microsoft Azure
18 25 (25.51%) Spring
19 24 (24.49%) TeamCity
19 24 (24.49%) Kafka
20 23 (23.47%) RabbitMQ
20 23 (23.47%) Akka
20 23 (23.47%) React
21 22 (22.45%) Hibernate

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 19 (19.39%) Apache Spark
2 17 (17.35%) Elasticsearch
3 9 (9.18%) NServiceBus
4 1 (1.02%) Tomcat
Applications
1 1 (1.02%) MS Excel
Business Applications
1 1 (1.02%) SAP Oil and Gas
Cloud Services
1 25 (25.51%) Microsoft Azure
2 16 (16.33%) Amazon AWS
3 15 (15.31%) GitHub
4 11 (11.22%) Amazon EC2
Communications & Networking
1 19 (19.39%) HTTP
2 11 (11.22%) Internet
3 4 (4.08%) TCP/IP
4 3 (3.06%) AMQP
5 2 (2.04%) OpenVPN
Database & Business Intelligence
1 37 (37.76%) SQL Server
2 25 (25.51%) NoSQL
3 17 (17.35%) Hadoop
4 12 (12.24%) PostgreSQL
5 11 (11.22%) Amazon DynamoDB
6 10 (10.20%) Apache Cassandra
6 10 (10.20%) Azure SQL Database
6 10 (10.20%) HBase
7 8 (8.16%) MongoDB
8 6 (6.12%) Apache Hive
8 6 (6.12%) Redis
9 4 (4.08%) MySQL
10 3 (3.06%) Relational Database
Development Applications
1 24 (24.49%) TeamCity
2 21 (21.43%) Octopus Deploy
3 16 (16.33%) Git (software)
4 10 (10.20%) Atlassian Bamboo
4 10 (10.20%) Hudson
4 10 (10.20%) MSBuild
4 10 (10.20%) Team Foundation Server
5 9 (9.18%) WebDriver
6 8 (8.16%) Subversion
7 7 (7.14%) SpecFlow
8 6 (6.12%) Jenkins
9 3 (3.06%) Moq
9 3 (3.06%) Protractor
10 2 (2.04%) Grunt
10 2 (2.04%) Jasmine
10 2 (2.04%) Karma Test Runner
10 2 (2.04%) MSTest
10 2 (2.04%) NUnit
10 2 (2.04%) Rhino Mocks
10 2 (2.04%) webpack
General
1 22 (22.45%) Banking
1 22 (22.45%) Finance
2 8 (8.16%) Investment Banking
3 3 (3.06%) Private Banking
4 2 (2.04%) Front Office
5 1 (1.02%) Electronics
5 1 (1.02%) Manufacturing
5 1 (1.02%) Marketing
5 1 (1.02%) Telecoms
Job Titles
1 81 (82.65%) Developer
2 40 (40.82%) C# Developer
3 26 (26.53%) .NET Developer
3 26 (26.53%) C# .NET Developer
3 26 (26.53%) Java Developer
4 20 (20.41%) Azure Developer
5 19 (19.39%) Senior Developer
6 13 (13.27%) Scala Developer
7 12 (12.24%) Agile Developer
7 12 (12.24%) ASP.NET Developer
7 12 (12.24%) C# ASP.NET Developer
7 12 (12.24%) Senior C# Developer
8 11 (11.22%) AWS Developer
8 11 (11.22%) Java Scala Developer
8 11 (11.22%) JavaScript Developer
9 8 (8.16%) Agile Java Developer
10 6 (6.12%) Full Stack Developer
10 6 (6.12%) Senior Java Developer
11 5 (5.10%) Digital Developer
11 5 (5.10%) Senior Agile Developer
Libraries, Frameworks & Software Standards
1 57 (58.16%) AngularJS
2 52 (53.06%) .NET
3 46 (46.94%) ASP.NET Web API
4 40 (40.82%) ASP.NET
5 26 (26.53%) HTML
6 25 (25.51%) HTML5
6 25 (25.51%) Spring
7 24 (24.49%) Kafka
8 23 (23.47%) Akka
8 23 (23.47%) RabbitMQ
8 23 (23.47%) React
9 22 (22.45%) Hibernate
10 21 (21.43%) ASP.NET MVC
11 19 (19.39%) Apache Avro
11 19 (19.39%) CSS
11 19 (19.39%) Play Framework
12 16 (16.33%) Node.js
12 16 (16.33%) RESTful
13 15 (15.31%) REST
14 14 (14.29%) WPF
Miscellaneous
1 15 (15.31%) Blog
2 13 (13.27%) Public Cloud
3 12 (12.24%) User Experience
4 10 (10.20%) Online Banking
5 8 (8.16%) Fintech
6 3 (3.06%) Foreign Exchange (FX)
6 3 (3.06%) Hedge funds
7 2 (2.04%) W3C
8 1 (1.02%) Computer Science
8 1 (1.02%) Enterprise Software
8 1 (1.02%) Mobile App
Operating Systems
1 6 (6.12%) Linux
2 3 (3.06%) Unix
3 1 (1.02%) Windows
Processes & Methodologies
1 68 (69.39%) Agile Software Development
2 58 (59.18%) TDD
3 45 (45.92%) Microservices
4 41 (41.84%) Domain-Driven Design
5 36 (36.73%) BDD
6 28 (28.57%) Scrum
7 27 (27.55%) MVC
8 26 (26.53%) E-Commerce
9 25 (25.51%) DevOps
10 20 (20.41%) Continuous Integration
11 19 (19.39%) Automated Testing
12 15 (15.31%) Pair Programming
13 13 (13.27%) High Availability
14 12 (12.24%) Open Source
15 11 (11.22%) SOLID
16 10 (10.20%) Complex Event Processing
16 10 (10.20%) Continuous Improvement
16 10 (10.20%) Kanban
16 10 (10.20%) MVVM
16 10 (10.20%) Software Engineering
Programming Languages
1 62 (63.27%) C#
2 49 (50.00%) JavaScript
3 33 (33.67%) SQL
4 32 (32.65%) Java
5 25 (25.51%) Scala
6 11 (11.22%) Ruby
7 8 (8.16%) PowerShell
8 6 (6.12%) T-SQL
9 5 (5.10%) TypeScript
10 4 (4.08%) C++
11 2 (2.04%) Bash Shell
11 2 (2.04%) Python
12 1 (1.02%) C
12 1 (1.02%) PHP
Qualifications
1 1 (1.02%) Degree
1 1 (1.02%) SC Cleared
1 1 (1.02%) Security Cleared
Quality Assurance & Compliance
1 10 (10.20%) QA
System Software
1 19 (19.39%) Apache Flume
2 1 (1.02%) Docker
Systems Management
1 19 (19.39%) Opscode Chef
2 10 (10.20%) Ansible
3 8 (8.16%) Puppet
4 1 (1.02%) Kubernetes
Vendors
1 9 (9.18%) Microsoft
2 2 (2.04%) Xamarin
3 1 (1.02%) Perforce
3 1 (1.02%) SAP
City, London
Venturi
Rate: £300 - £350 per day
Posted: 3 days ago