Period
to 19 November 2017

The following table provides summary statistics for permanent job vacancies advertised in the City of London with a requirement for CQRS skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited CQRS over the 6 months to 19 November 2017 with a comparison to the same period in the previous 2 years.

Command-Query Responsibility Segregation (also Command-Query Separation)
Central London > City of London
6 months to
19 Nov 2017
Same period 2016 Same period 2015
Rank 302 339 426
Rank change year-on-year +37 +87 +31
Permanent jobs citing CQRS 20 11 3
As % of all permanent IT jobs advertised in the City of London 0.20% 0.095% 0.017%
As % of the Processes & Methodologies category 0.22% 0.11% 0.020%
Number of salaries quoted 16 11 3
City of London median annual salary £76,250 £58,500 £50,000
Median salary % change year-on-year +30.34% +17.00% -23.08%
10th Percentile £61,875 £48,750 £45,000
90th Percentile £81,250 £63,750 £63,000
Central London median annual salary £70,000 £58,500 £50,000
% change year-on-year +19.66% +17.00% -21.57%

CQRS is in the Processes and Methodologies category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in the City of London with a requirement for process or methodology skills.

All Process and Methodology Skills
City of London
Permanent vacancies with a requirement for process or methodology skills 9128 10396 15326
As % of all permanent IT jobs advertised in the City of London 90.10% 89.42% 89.14%
Number of salaries quoted 8240 9472 13280
City of London median annual salary £60,000 £60,000 £57,500
Median salary % change year-on-year - +4.35% +4.55%
10th Percentile £36,250 £35,000 £33,750
90th Percentile £94,325 £90,000 £87,500
Central London median annual salary £60,000 £57,500 £57,500
% change year-on-year +4.35% - +4.55%

CQRS
Job Vacancy Trend in the City of London

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

Job vacancy trend for CQRS in the City of London

CQRS
Salary Trend in the City of London

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing CQRS in the City of London.

Salary trend for CQRS in the City of London

CQRS
Salary Histogram in the City of London

The salary distribution of IT jobs citing CQRS in the City of London over the 6 months to 19 November 2017.

Salary histogram for CQRS in the City of London

For the 6 months to 19 November 2017, IT jobs citing CQRS also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the City of London region with a requirement for CQRS.

1 18 (90.00%) C#
1 18 (90.00%) .NET
2 15 (75.00%) Agile Software Development
2 15 (75.00%) SOLID
3 14 (70.00%) Microservices
3 14 (70.00%) Continuous Integration
4 13 (65.00%) Configuration Management
5 12 (60.00%) TDD
5 12 (60.00%) Domain-Driven Design
6 11 (55.00%) ASP.NET Web API
6 11 (55.00%) Scrum
6 11 (55.00%) JavaScript
6 11 (55.00%) Redux
7 10 (50.00%) Open Source
7 10 (50.00%) REST
8 9 (45.00%) TeamCity
8 9 (45.00%) Node.js
8 9 (45.00%) Finance
8 9 (45.00%) Atlassian Bamboo
8 9 (45.00%) HTML
9 8 (40.00%) ASP.NET
9 8 (40.00%) OO
9 8 (40.00%) Software Engineering
9 8 (40.00%) Banking
9 8 (40.00%) Ansible
9 8 (40.00%) DevOps
9 8 (40.00%) Opscode Chef
9 8 (40.00%) Puppet
9 8 (40.00%) RESTful
10 7 (35.00%) Greenfield Project

CQRS
Co-occurring IT Skills in the City of 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 1 (5.00%) Apache Spark
1 1 (5.00%) Cloud Foundry
Cloud Services
1 5 (25.00%) Azure Active Directory
1 5 (25.00%) Microsoft Azure
2 3 (15.00%) Amazon AWS
3 1 (5.00%) Amazon Kinesis
3 1 (5.00%) AWS Elastic Beanstalk
3 1 (5.00%) Heroku
3 1 (5.00%) OpenShift
3 1 (5.00%) PaaS
Database & Business Intelligence
1 5 (25.00%) Azure SQL Database
1 5 (25.00%) SQL Server
2 1 (5.00%) Big Data
2 1 (5.00%) Hadoop
2 1 (5.00%) NoSQL
Development Applications
1 9 (45.00%) Atlassian Bamboo
1 9 (45.00%) TeamCity
2 7 (35.00%) Hudson
2 7 (35.00%) MSBuild
2 7 (35.00%) Octopus Deploy
3 2 (10.00%) Jenkins
4 1 (5.00%) Cucumber
4 1 (5.00%) Git (software)
4 1 (5.00%) JIRA
4 1 (5.00%) JSUnit
4 1 (5.00%) JUnit
4 1 (5.00%) Karma Test Runner
4 1 (5.00%) Mocha
4 1 (5.00%) Visual Studio Code
General
1 9 (45.00%) Finance
2 8 (40.00%) Banking
3 1 (5.00%) Financial Institution
3 1 (5.00%) Retail
Job Titles
1 14 (70.00%) Developer
2 10 (50.00%) .NET Developer
3 9 (45.00%) C# Developer
3 9 (45.00%) Lead Developer
4 8 (40.00%) ASP.NET Developer
4 8 (40.00%) C# .NET Developer
4 8 (40.00%) C# ASP.NET Developer
5 7 (35.00%) Lead .NET Developer
5 7 (35.00%) Lead C# Developer
6 5 (25.00%) .NET Architect
6 5 (25.00%) Architect
7 3 (15.00%) .NET Solutions Architect
7 3 (15.00%) Solutions Architect
8 2 (10.00%) Senior .NET Developer
8 2 (10.00%) Senior Developer
9 1 (5.00%) .NET Technical Architect
9 1 (5.00%) Analyst
9 1 (5.00%) Analyst Developer
9 1 (5.00%) Technical Architect
9 1 (5.00%) UI Developer
Libraries, Frameworks & Software Standards
1 18 (90.00%) .NET
2 11 (55.00%) ASP.NET Web API
2 11 (55.00%) Redux
3 10 (50.00%) REST
4 9 (45.00%) HTML
4 9 (45.00%) Node.js
5 8 (40.00%) ASP.NET
5 8 (40.00%) RESTful
6 7 (35.00%) HATEOAS
7 6 (30.00%) CSS
7 6 (30.00%) React
8 5 (25.00%) SOAP
8 5 (25.00%) Web Services
9 3 (15.00%) AngularJS
10 1 (5.00%) CSS3
10 1 (5.00%) HTML5
10 1 (5.00%) Kafka
10 1 (5.00%) RxJS
10 1 (5.00%) Sass
10 1 (5.00%) Twitter Bootstrap
Miscellaneous
1 7 (35.00%) Greenfield Project
1 7 (35.00%) Online Banking
2 5 (25.00%) Enterprise Software
3 4 (20.00%) Computer Science
4 2 (10.00%) Fintech
5 1 (5.00%) Derivative
5 1 (5.00%) Equities
5 1 (5.00%) Fixed Income
5 1 (5.00%) Management Information System
5 1 (5.00%) Market Risk
5 1 (5.00%) User Experience
Processes & Methodologies
1 15 (75.00%) Agile Software Development
1 15 (75.00%) SOLID
2 14 (70.00%) Continuous Integration
2 14 (70.00%) Microservices
3 13 (65.00%) Configuration Management
4 12 (60.00%) Domain-Driven Design
4 12 (60.00%) TDD
5 11 (55.00%) Scrum
6 10 (50.00%) Open Source
7 8 (40.00%) DevOps
7 8 (40.00%) OO
7 8 (40.00%) Software Engineering
8 7 (35.00%) Line Management
8 7 (35.00%) Mentoring
8 7 (35.00%) SOA
9 6 (30.00%) Business Analysis
9 6 (30.00%) Change Management
9 6 (30.00%) User Stories
10 5 (25.00%) Web Development
11 4 (20.00%) BDD
Programming Languages
1 18 (90.00%) C#
2 11 (55.00%) JavaScript
3 7 (35.00%) PowerShell
4 5 (25.00%) SQL
5 2 (10.00%) Java
6 1 (5.00%) Bash Shell
6 1 (5.00%) C++
6 1 (5.00%) ES6
6 1 (5.00%) Go
6 1 (5.00%) Python
6 1 (5.00%) Ruby
6 1 (5.00%) Scala
6 1 (5.00%) TypeScript
Qualifications
1 5 (25.00%) Degree
2 2 (10.00%) Computer Science Degree
3 1 (5.00%) ISEB
Quality Assurance & Compliance
1 1 (5.00%) QA
System Software
1 1 (5.00%) Cygwin
1 1 (5.00%) Docker
Systems Management
1 8 (40.00%) Ansible
1 8 (40.00%) Opscode Chef
1 8 (40.00%) Puppet
2 1 (5.00%) rkt
2 1 (5.00%) Terraform
Vendors
1 1 (5.00%) Cadence