Period
to 27 July 2017

The following table provides summary statistics for contract job vacancies 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 27 July 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
6 months to
27 Jul 2017
Same period 2016 Same period 2015
Rank 669 795 860
Rank change year-on-year +126 +65 -40
Contract jobs citing CQRS 180 112 29
As % of all contract IT jobs advertised in the UK 0.19% 0.10% 0.026%
As % of the Processes & Methodologies category 0.22% 0.12% 0.032%
Number of daily rates quoted 128 91 18
UK median daily rate £500 £475 £413
Median daily rate % change year-on-year +5.26% +15.15% +3.13%
10th Percentile £363 £338 £329
90th Percentile £600 £588 £625
UK excluding London median daily rate £498 £475 £400
% change year-on-year +4.74% +18.75% +2.56%
Number of hourly rates quoted 0 0 1
UK median hourly rate - - £7.69
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 with a requirement for process and methodology skills.

Contract Process & Methodology Skills
UK
Contract job vacancies with a requirement for process and methodology skills 80364 91722 90936
As % of all contract IT job vacancies advertised in the UK 84.27% 83.45% 80.59%
Number of daily rates quoted 52749 60501 57614
UK median daily rate £450 £425 £400
Median daily rate % change year-on-year +5.88% +6.25% -
10th Percentile £280 £263 £258
90th Percentile £625 £600 £588
UK excluding London median daily rate £400 £400 £375
% change year-on-year - +6.67% +3.45%
Number of hourly rates quoted 2042 2200 2581
UK median hourly rate £25.00 £25.00 £22.00
Median hourly rate % change year-on-year - +13.64% +4.76%
10th Percentile £11.75 £11.50 £11.00
90th Percentile £51.71 £48.75 £47.83
UK excluding London median hourly rate £25.00 £26.00 £22.50
% change year-on-year -3.85% +15.56% +2.27%

CQRS
Job Vacancy Trend

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

Job vacancy trend for CQRS in the UK

CQRS
Contractor Daily Rate Trend

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

Contractor daily rate trend for CQRS in the UK

CQRS
Contractor Daily Rate Histogram

The daily rate distribution of IT jobs citing CQRS over the 6 months to 27 July 2017.

Contractor daily rate histogram for CQRS in the UK

CQRS
Top 12 Contract Locations

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing CQRS within the UK over the 6 months to 27 July 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
England +123 178 £500 +5.26% 21
London +109 158 £500 +5.26% 13
UK excluding London +11 20 £498 +4.74% 8
North of England +65 9 £480 +28.00% 1
North West +44 6 £480 +28.00% 1
South West +9 5 £500 +9.59% 1
West Midlands +34 2 £425 +21.43%
Midlands +18 2 £425 +21.43%
South East -21 2 £475 - 5
North East - 2 - -
Wales - 2 £525 -
Yorkshire - 1 - -

For the 6 months to 27 July 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 with a requirement for CQRS.

1 140 (77.78%) Agile Software Development
2 104 (57.78%) .NET
2 104 (57.78%) AngularJS
3 89 (49.44%) C#
4 86 (47.78%) TDD
5 85 (47.22%) Microservices
6 78 (43.33%) Domain-Driven Design
7 76 (42.22%) ASP.NET Web API
8 73 (40.56%) ASP.NET
9 71 (39.44%) BDD
10 70 (38.89%) JavaScript
10 70 (38.89%) Scrum
11 69 (38.33%) Java
12 63 (35.00%) NoSQL
13 58 (32.22%) MVC
14 52 (28.89%) TeamCity
15 50 (27.78%) Finance
16 49 (27.22%) Octopus Deploy
17 48 (26.67%) Microsoft Azure
18 44 (24.44%) RabbitMQ
18 44 (24.44%) DevOps
19 43 (23.89%) MongoDB
19 43 (23.89%) Software Engineering
19 43 (23.89%) Greenfield Project
20 42 (23.33%) React
20 42 (23.33%) Kafka
21 40 (22.22%) Spring
22 37 (20.56%) Akka
22 37 (20.56%) RESTful
23 36 (20.00%) E-Commerce

CQRS
Co-occurring IT Skills 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 32 (17.78%) NServiceBus
2 25 (13.89%) Elasticsearch
3 17 (9.44%) Apache Spark
4 4 (2.22%) Confluence
4 4 (2.22%) Mule
5 3 (1.67%) Apache
6 2 (1.11%) Alfresco
6 2 (1.11%) JBoss
6 2 (1.11%) Tomcat
7 1 (0.56%) OpenStack
Cloud Services
1 48 (26.67%) Microsoft Azure
2 34 (18.89%) Amazon AWS
3 25 (13.89%) GitHub
4 19 (10.56%) Amazon EC2
5 3 (1.67%) Heroku
5 3 (1.67%) PaaS
6 2 (1.11%) Cloud Computing
6 2 (1.11%) IaaS
6 2 (1.11%) SaaS
7 1 (0.56%) Amazon Kinesis
7 1 (0.56%) Azure Machine Learning
Communications & Networking
1 19 (10.56%) HTTP
2 11 (6.11%) Internet
3 7 (3.89%) TCP/IP
4 3 (1.67%) DNS
4 3 (1.67%) FTP
4 3 (1.67%) SSL
5 2 (1.11%) AMQP
Database & Business Intelligence
1 63 (35.00%) NoSQL
2 43 (23.89%) MongoDB
3 28 (15.56%) SQL Server
4 25 (13.89%) Hadoop
5 23 (12.78%) Amazon DynamoDB
6 18 (10.00%) PostgreSQL
7 7 (3.89%) RavenDB
8 6 (3.33%) Apache Hive
8 6 (3.33%) Redis
9 5 (2.78%) Apache Cassandra
9 5 (2.78%) Relational Database
10 2 (1.11%) DocumentDB
11 1 (0.56%) HBase
11 1 (0.56%) MySQL
11 1 (0.56%) SQL Server 2012
Development Applications
1 52 (28.89%) TeamCity
2 49 (27.22%) Octopus Deploy
3 33 (18.33%) Git (software)
4 28 (15.56%) SpecFlow
5 20 (11.11%) Subversion
6 14 (7.78%) Hudson
6 14 (7.78%) Jenkins
6 14 (7.78%) Team Foundation Server
7 13 (7.22%) Atlassian Bamboo
7 13 (7.22%) JUnit
7 13 (7.22%) Mockito
7 13 (7.22%) MSBuild
8 10 (5.56%) WebDriver
9 9 (5.00%) Protractor
10 6 (3.33%) Jasmine
11 5 (2.78%) JMeter
11 5 (2.78%) webpack
12 4 (2.22%) Burp Suite
12 4 (2.22%) JIRA
13 3 (1.67%) Gradle
General
1 50 (27.78%) Finance
2 25 (13.89%) Banking
3 2 (1.11%) Retail
4 1 (0.56%) Electronics
4 1 (0.56%) Front Office
4 1 (0.56%) Law
4 1 (0.56%) Legal
4 1 (0.56%) Local Government
4 1 (0.56%) Manufacturing
4 1 (0.56%) Marketing
4 1 (0.56%) Telecoms
Job Titles
1 156 (86.67%) Developer
2 59 (32.78%) C# Developer
3 53 (29.44%) .NET Developer
4 48 (26.67%) Java Developer
5 34 (18.89%) Full Stack Developer
5 34 (18.89%) Senior Developer
6 28 (15.56%) Azure Developer
6 28 (15.56%) C# .NET Developer
7 23 (12.78%) Angular Developer
7 23 (12.78%) Senior C# Developer
8 19 (10.56%) AWS Developer
9 13 (7.22%) Scala Developer
10 12 (6.67%) Agile Developer
11 11 (6.11%) Lead Developer
11 11 (6.11%) Senior .NET Developer
12 9 (5.00%) ASP.NET Developer
12 9 (5.00%) C# ASP.NET Developer
12 9 (5.00%) Java Scala Developer
12 9 (5.00%) Senior C# .NET Developer
12 9 (5.00%) Senior Java Developer
Libraries, Frameworks & Software Standards
1 104 (57.78%) .NET
1 104 (57.78%) AngularJS
2 76 (42.22%) ASP.NET Web API
3 73 (40.56%) ASP.NET
4 44 (24.44%) RabbitMQ
5 42 (23.33%) Kafka
5 42 (23.33%) React
6 40 (22.22%) Spring
7 37 (20.56%) Akka
7 37 (20.56%) RESTful
8 30 (16.67%) ASP.NET MVC
9 26 (14.44%) Node.js
9 26 (14.44%) Redux
10 24 (13.33%) Angular 2
10 24 (13.33%) HTML
10 24 (13.33%) REST
11 22 (12.22%) Ember.js
11 22 (12.22%) Hibernate
12 21 (11.67%) CSS
13 20 (11.11%) SignalR
Miscellaneous
1 43 (23.89%) Greenfield Project
2 26 (14.44%) Public Cloud
3 24 (13.33%) Blog
4 18 (10.00%) Fintech
4 18 (10.00%) Hedge funds
5 15 (8.33%) Foreign Exchange (FX)
6 13 (7.22%) Online Banking
7 11 (6.11%) User Experience
8 3 (1.67%) Computer Science
9 2 (1.11%) Enterprise Software
9 2 (1.11%) W3C
10 1 (0.56%) Analytical Skills
10 1 (0.56%) NHS
10 1 (0.56%) N-Tier
Operating Systems
1 8 (4.44%) Linux
2 3 (1.67%) CoreOS
3 1 (0.56%) Mac OS X
3 1 (0.56%) Mesosphere
3 1 (0.56%) Unix
Processes & Methodologies
1 140 (77.78%) Agile Software Development
2 86 (47.78%) TDD
3 85 (47.22%) Microservices
4 78 (43.33%) Domain-Driven Design
5 71 (39.44%) BDD
6 70 (38.89%) Scrum
7 58 (32.22%) MVC
8 44 (24.44%) DevOps
9 43 (23.89%) Software Engineering
10 36 (20.00%) E-Commerce
11 34 (18.89%) SOLID
12 31 (17.22%) Continuous Integration
12 31 (17.22%) Test Automation
13 24 (13.33%) High Availability
13 24 (13.33%) Pair Programming
14 23 (12.78%) Continuous Improvement
14 23 (12.78%) Front End Development
14 23 (12.78%) Kanban
15 20 (11.11%) Open Source
16 18 (10.00%) Complex Event Processing
Programming Languages
1 89 (49.44%) C#
2 70 (38.89%) JavaScript
3 69 (38.33%) Java
4 33 (18.33%) Scala
5 31 (17.22%) SQL
6 20 (11.11%) Ruby
7 11 (6.11%) PL/SQL
7 11 (6.11%) PowerShell
8 8 (4.44%) TypeScript
9 6 (3.33%) T-SQL
10 4 (2.22%) C++
10 4 (2.22%) VBScript
11 3 (1.67%) Bash Shell
11 3 (1.67%) Groovy
12 2 (1.11%) ES6
12 2 (1.11%) PHP
12 2 (1.11%) Python
Qualifications
1 4 (2.22%) Security Cleared
2 3 (1.67%) BPSS Clearance
2 3 (1.67%) Computer Science Degree
2 3 (1.67%) Degree
3 2 (1.11%) SC Cleared
Quality Assurance & Compliance
1 14 (7.78%) QA
System Software
1 16 (8.89%) Apache Flume
2 11 (6.11%) Docker
Systems Management
1 30 (16.67%) Opscode Chef
2 17 (9.44%) Ansible
3 15 (8.33%) Puppet
4 4 (2.22%) Kubernetes
5 3 (1.67%) Docker Swarm
5 3 (1.67%) Terraform
6 2 (1.11%) Marathon
7 1 (0.56%) Kibana
7 1 (0.56%) Mesos
Vendors
1 23 (12.78%) Microsoft
2 9 (5.00%) Oracle
3 2 (1.11%) Atlassian
4 1 (0.56%) Cadence
4 1 (0.56%) Red Hat
4 1 (0.56%) SAP
4 1 (0.56%) Xamarin
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