Period
to 25 February 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 25 February 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
25 Feb 2018
Same period 2017 Same period 2016
Rank 542 717 777
Rank change year-on-year +175 +60 +11
Contract jobs citing CQRS 321 113 73
As % of all contract IT jobs advertised in England 0.35% 0.13% 0.074%
As % of the Processes & Methodologies category 0.41% 0.15% 0.089%
Number of daily rates quoted 264 77 42
England median daily rate £525 £488 £444
Median daily rate % change year-on-year +7.69% +9.86% -11.25%
10th Percentile £414 £352 £325
90th Percentile £650 £575 £536
UK median daily rate £525 £488 £444
% change year-on-year +7.69% +9.86% -11.25%
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 78,013 74,139 82,315
As % of all contract IT jobs advertised in England 84.90% 84.07% 82.98%
Number of daily rates quoted 52,531 49,486 54,341
England median daily rate £455 £438 £425
Median daily rate % change year-on-year +4.00% +2.94% +4.94%
10th Percentile £297 £270 £263
90th Percentile £638 £625 £606
UK median daily rate £450 £425 £425
% change year-on-year +5.88% - +6.25%
Number of hourly rates quoted 1,881 2,008 2,410
England median hourly rate £24.56 £25.00 £23.42
Median hourly rate % change year-on-year -1.76% +6.75% +14.24%
10th Percentile £11.50 £11.46 £11.33
90th Percentile £50.50 £49.83 £50.00
UK median hourly rate £24.00 £25.00 £24.85
% change year-on-year -4.00% +0.60% +22.14%

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 25 February 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 25 February 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 +161 296 £525 +5.00% 24
North of England +33 8 £375 -21.05% 3
South West +21 7 £475 +1.33% 1
North West - 6 £350 - 3
South East -7 4 £338 -28.95% 9
Midlands +1 3 £475 +18.75% 2
East of England - 3 £450 - 6
East Midlands - 2 £538 - 1
West Midlands -2 1 £350 -12.50% 1
Yorkshire -6 1 £400 -15.79%
North East - 1 - -
CQRS
UK

For the 6 months to 25 February 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.

1 279 (86.92%) Agile Software Development
2 213 (66.36%) Domain-Driven Design
3 208 (64.80%) Microservices
4 162 (50.47%) Java
5 145 (45.17%) C#
5 145 (45.17%) .NET
6 142 (44.24%) TDD
7 141 (43.93%) Scrum
7 141 (43.93%) RESTful
8 134 (41.74%) Git (software)
9 131 (40.81%) DevOps
10 125 (38.94%) AngularJS
11 124 (38.63%) BDD
12 110 (34.27%) JavaScript
12 110 (34.27%) JMS
13 101 (31.46%) ASP.NET
14 100 (31.15%) React
15 99 (30.84%) ASP.NET Web API
16 98 (30.53%) Continuous Integration
17 96 (29.91%) OO
18 94 (29.28%) MVC
19 90 (28.04%) Test Automation
20 88 (27.41%) Microsoft Azure
21 87 (27.10%) Amazon AWS
22 84 (26.17%) REST
23 81 (25.23%) Node.js
23 81 (25.23%) Mockito
23 81 (25.23%) NoSQL
23 81 (25.23%) Maven
23 81 (25.23%) JUnit

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 75 (23.36%) Confluence
2 70 (21.81%) WildFly
3 41 (12.77%) NServiceBus
4 34 (10.59%) Elasticsearch
5 8 (2.49%) Tomcat
6 4 (1.25%) IIS
6 4 (1.25%) OpenStack
7 2 (0.62%) Apache ServiceMix
8 1 (0.31%) DataSynapse
8 1 (0.31%) JBoss
8 1 (0.31%) WebSphere
Business Applications
1 8 (2.49%) Dynamics CRM
Cloud Services
1 88 (27.41%) Microsoft Azure
2 87 (27.10%) Amazon AWS
3 41 (12.77%) GitHub
4 11 (3.43%) Google Play
5 9 (2.80%) Amazon EC2
6 7 (2.18%) Google Cloud Platform
7 6 (1.87%) AWS CloudFormation
8 5 (1.56%) PaaS
9 4 (1.25%) Serverless
10 3 (0.93%) Amazon SQS
11 2 (0.62%) Amazon S3
11 2 (0.62%) AWS Elastic Beanstalk
11 2 (0.62%) iPaaS
12 1 (0.31%) Heroku
12 1 (0.31%) npm
Communications & Networking
1 3 (0.93%) DNS
2 1 (0.31%) FIX Connectivity
2 1 (0.31%) FTP
2 1 (0.31%) HTTP
2 1 (0.31%) SSL
2 1 (0.31%) TCP/IP
Database & Business Intelligence
1 81 (25.23%) NoSQL
2 74 (23.05%) Relational Database
3 70 (21.81%) RDBMS
4 67 (20.87%) PostgreSQL
5 49 (15.26%) MongoDB
6 38 (11.84%) SQL Server
7 19 (5.92%) Amazon DynamoDB
8 18 (5.61%) MySQL
9 16 (4.98%) RavenDB
10 13 (4.05%) Neo4j
11 12 (3.74%) Apache Cassandra
12 11 (3.43%) JanusGraph
12 11 (3.43%) Redis
13 9 (2.80%) Azure SQL Database
14 5 (1.56%) Hadoop
14 5 (1.56%) SQL Server Integration Services
15 2 (0.62%) Big Data
15 2 (0.62%) SQL Server Analysis Services
15 2 (0.62%) SQL Server Reporting Services
16 1 (0.31%) Oracle Database
Development Applications
1 134 (41.74%) Git (software)
2 81 (25.23%) JUnit
2 81 (25.23%) Maven
2 81 (25.23%) Mockito
3 76 (23.68%) JIRA
4 75 (23.36%) SonarQube
5 71 (22.12%) Liquibase
6 70 (21.81%) Checkstyle
7 66 (20.56%) Vagrant
8 46 (14.33%) TeamCity
9 44 (13.71%) Octopus Deploy
10 26 (8.10%) SpecFlow
11 24 (7.48%) Jenkins
12 23 (7.17%) Subversion
13 16 (4.98%) Atlassian Bamboo
13 16 (4.98%) Hudson
14 15 (4.67%) MSBuild
15 12 (3.74%) Cucumber
16 9 (2.80%) Protractor
16 9 (2.80%) Selenium
General
1 64 (19.94%) Finance
2 46 (14.33%) Banking
3 32 (9.97%) Retail
4 8 (2.49%) Publishing
5 6 (1.87%) Telecoms
6 4 (1.25%) Electronics
6 4 (1.25%) Manufacturing
6 4 (1.25%) Marketing
7 1 (0.31%) Advertising
7 1 (0.31%) Front Office
7 1 (0.31%) Investment Banking
7 1 (0.31%) Local Government
Job Titles
1 274 (85.36%) Developer
2 110 (34.27%) Java Developer
3 101 (31.46%) .NET Developer
4 81 (25.23%) Senior Developer
5 71 (22.12%) C# Developer
6 57 (17.76%) Senior .NET Developer
7 50 (15.58%) Full Stack Developer
8 41 (12.77%) SC Cleared Java Developer
9 37 (11.53%) C# .NET Developer
10 36 (11.21%) Senior C# Developer
11 34 (10.59%) JavaScript Developer
12 27 (8.41%) Node.js Developer
13 23 (7.17%) ASP.NET Developer
13 23 (7.17%) C# ASP.NET Developer
14 21 (6.54%) Senior C# .NET Developer
15 19 (5.92%) Senior Full Stack Developer
16 17 (5.30%) Angular Developer
17 16 (4.98%) AWS Developer
17 16 (4.98%) E-Commerce Developer
17 16 (4.98%) Senior E-Commerce Developer
Libraries, Frameworks & Software Standards
1 145 (45.17%) .NET
2 141 (43.93%) RESTful
3 125 (38.94%) AngularJS
4 110 (34.27%) JMS
5 101 (31.46%) ASP.NET
6 100 (31.15%) React
7 99 (30.84%) ASP.NET Web API
8 84 (26.17%) REST
9 81 (25.23%) Node.js
10 77 (23.99%) WireMock
11 76 (23.68%) JAX-RS
12 73 (22.74%) Drools
13 72 (22.43%) Hibernate
14 70 (21.81%) Java EE
14 70 (21.81%) Lambda Expressions
15 54 (16.82%) ASP.NET MVC
16 47 (14.64%) Web Services
17 37 (11.53%) Redux
18 35 (10.90%) JSON
19 34 (10.59%) RabbitMQ
Miscellaneous
1 70 (21.81%) Linux Command Line
2 46 (14.33%) Greenfield Project
3 44 (13.71%) Fintech
4 39 (12.15%) Public Cloud
5 36 (11.21%) Blog
6 30 (9.35%) Online Banking
7 18 (5.61%) Hedge funds
8 17 (5.30%) Foreign Exchange (FX)
9 13 (4.05%) Analytical Skills
10 11 (3.43%) Mobile App
11 10 (3.12%) User Experience
12 3 (0.93%) Enterprise Software
13 2 (0.62%) Smart Meter
14 1 (0.31%) Spread Betting
Operating Systems
1 73 (22.74%) Unix
2 66 (20.56%) VMS
3 15 (4.67%) Linux
4 11 (3.43%) Android
4 11 (3.43%) Apple iOS
5 4 (1.25%) Windows
6 1 (0.31%) CoreOS
Processes & Methodologies
1 279 (86.92%) Agile Software Development
2 213 (66.36%) Domain-Driven Design
3 208 (64.80%) Microservices
4 142 (44.24%) TDD
5 141 (43.93%) Scrum
6 131 (40.81%) DevOps
7 124 (38.63%) BDD
8 98 (30.53%) Continuous Integration
9 96 (29.91%) OO
10 94 (29.28%) MVC
11 90 (28.04%) Test Automation
12 74 (23.05%) Dependency Injection
13 70 (21.81%) OOA/OOD
14 58 (18.07%) Software Engineering
15 55 (17.13%) E-Commerce
16 52 (16.20%) Open Source
17 40 (12.46%) SOLID
18 33 (10.28%) High Availability
19 30 (9.35%) Configuration Management
20 28 (8.72%) Continuous Improvement
Programming Languages
1 162 (50.47%) Java
2 145 (45.17%) C#
3 110 (34.27%) JavaScript
4 70 (21.81%) JPQL
5 32 (9.97%) SQL
6 18 (5.61%) PowerShell
7 15 (4.67%) GraphQL
8 14 (4.36%) ES6
9 13 (4.05%) TypeScript
10 11 (3.43%) Objective-C
11 5 (1.56%) Shell Script
12 4 (1.25%) C
13 2 (0.62%) Groovy
13 2 (0.62%) Scala
14 1 (0.31%) PL/SQL
14 1 (0.31%) Ruby
14 1 (0.31%) T-SQL
Qualifications
1 55 (17.13%) Security Cleared
2 46 (14.33%) SC Cleared
3 9 (2.80%) BPSS Clearance
4 2 (0.62%) Degree
4 2 (0.62%) Sun Certification
5 1 (0.31%) BC Cleared
Quality Assurance & Compliance
1 8 (2.49%) QA
2 3 (0.93%) Disclosure Scotland
2 3 (0.93%) GCP
3 2 (0.62%) GDPR
3 2 (0.62%) ISO/IEC 27001
4 1 (0.31%) PCI DSS
System Software
1 22 (6.85%) Docker
Systems Management
1 25 (7.79%) Ansible
2 16 (4.98%) Opscode Chef
3 11 (3.43%) Kubernetes
3 11 (3.43%) Terraform
4 10 (3.12%) Puppet
5 8 (2.49%) ZABBIX
6 5 (1.56%) Kibana
7 4 (1.25%) Control-M
7 4 (1.25%) Nagios
8 3 (0.93%) Grafana
9 1 (0.31%) Docker Swarm
Vendors
1 39 (12.15%) Microsoft
2 15 (4.67%) Google
3 11 (3.43%) Apple
4 8 (2.49%) Salesforce.com
5 7 (2.18%) New Relic
5 7 (2.18%) Oracle
5 7 (2.18%) Splunk
6 6 (1.87%) SAP
7 4 (1.25%) AppDynamics
7 4 (1.25%) Embarcadero
7 4 (1.25%) Red Hat
8 2 (0.62%) Apigee
8 2 (0.62%) IBM
9 1 (0.31%) Capita
9 1 (0.31%) Reuters
9 1 (0.31%) TIBCO